* [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device
2014-08-28 10:48 [PATCH v2 0/7] Add initial support for DA9150 Charger & Fuel-Gauge IC Adam Thomson
@ 2014-08-28 10:48 ` Adam Thomson
2014-08-28 11:47 ` Varka Bhadram
2014-08-28 16:36 ` Lee Jones
2014-08-28 10:48 ` [PATCH v2 2/7] mfd: da9150: Add DT binding documentation for core Adam Thomson
` (5 subsequent siblings)
6 siblings, 2 replies; 25+ messages in thread
From: Adam Thomson @ 2014-08-28 10:48 UTC (permalink / raw)
To: Lee Jones, Samuel Ortiz, Jonathan Cameron, linux-iio,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala, devicetree, Andrew Morton, Joe Perches
Cc: linux-kernel, support.opensource
DA9150 is a combined Charger and Fuel-Gauge IC, with additional
GPIO and GPADC functionality.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 2 +
drivers/mfd/da9150-core.c | 332 ++++++++++
drivers/mfd/da9150-i2c.c | 176 ++++++
include/linux/mfd/da9150/core.h | 80 +++
include/linux/mfd/da9150/pdata.h | 21 +
include/linux/mfd/da9150/registers.h | 1153 ++++++++++++++++++++++++++++++++++
7 files changed, 1776 insertions(+)
create mode 100644 drivers/mfd/da9150-core.c
create mode 100644 drivers/mfd/da9150-i2c.c
create mode 100644 include/linux/mfd/da9150/core.h
create mode 100644 include/linux/mfd/da9150/pdata.h
create mode 100644 include/linux/mfd/da9150/registers.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index de5abf2..76adb2c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -183,6 +183,18 @@ config MFD_DA9063
Additional drivers must be enabled in order to use the functionality
of the device.
+config MFD_DA9150
+ bool "Dialog Semiconductor DA9150 Charger Fuel-Gauge chip"
+ depends on I2C=y
+ select MFD_CORE
+ select REGMAP_I2C
+ select REGMAP_IRQ
+ help
+ This adds support for the DA9150 integrated charger and fuel-gauge
+ chip. This driver provides common support for accessing the device.
+ Additional drivers must be enabled in order to use the specific
+ features of the device.
+
config MFD_MC13XXX
tristate
depends on (SPI_MASTER || I2C)
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index f001487..098dfa1 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -114,6 +114,8 @@ obj-$(CONFIG_MFD_DA9055) += da9055.o
da9063-objs := da9063-core.o da9063-irq.o da9063-i2c.o
obj-$(CONFIG_MFD_DA9063) += da9063.o
+obj-$(CONFIG_MFD_DA9150) += da9150-core.o da9150-i2c.o
+
obj-$(CONFIG_MFD_MAX14577) += max14577.o
obj-$(CONFIG_MFD_MAX77686) += max77686.o
obj-$(CONFIG_MFD_MAX77693) += max77693.o
diff --git a/drivers/mfd/da9150-core.c b/drivers/mfd/da9150-core.c
new file mode 100644
index 0000000..029a30b
--- /dev/null
+++ b/drivers/mfd/da9150-core.c
@@ -0,0 +1,332 @@
+/*
+ * DA9150 Core MFD Driver
+ *
+ * Copyright (c) 2014 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/core.h>
+
+#include <linux/mfd/da9150/core.h>
+#include <linux/mfd/da9150/registers.h>
+#include <linux/mfd/da9150/pdata.h>
+
+u8 da9150_reg_read(struct da9150 *da9150, u16 reg)
+{
+ int val, ret;
+
+ ret = regmap_read(da9150->regmap, reg, &val);
+ if (ret < 0)
+ dev_err(da9150->dev, "Failed to read from reg 0x%x: %d\n",
+ reg, ret);
+
+ return (u8) val;
+}
+EXPORT_SYMBOL_GPL(da9150_reg_read);
+
+int da9150_reg_write(struct da9150 *da9150, u16 reg, u8 val)
+{
+ int ret;
+
+ ret = regmap_write(da9150->regmap, reg, val);
+ if (ret < 0)
+ dev_err(da9150->dev, "Failed to write to reg 0x%x: %d\n",
+ reg, ret);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(da9150_reg_write);
+
+int da9150_set_bits(struct da9150 *da9150, u16 reg, u8 mask, u8 val)
+{
+ int ret;
+
+ ret = regmap_update_bits(da9150->regmap, reg, mask, val);
+ if (ret < 0)
+ dev_err(da9150->dev, "Failed to set bits in reg 0x%x: %d\n",
+ reg, ret);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(da9150_set_bits);
+
+int da9150_bulk_read(struct da9150 *da9150, u16 reg, int count, u8 *buf)
+{
+ int ret;
+
+ ret = regmap_bulk_read(da9150->regmap, reg, buf, count);
+ if (ret < 0)
+ dev_err(da9150->dev, "Failed to bulk read from reg 0x%x: %d\n",
+ reg, ret);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(da9150_bulk_read);
+
+int da9150_bulk_write(struct da9150 *da9150, u16 reg, int count, const u8 *buf)
+{
+ int ret;
+
+ ret = regmap_raw_write(da9150->regmap, reg, buf, count);
+ if (ret < 0)
+ dev_err(da9150->dev, "Failed to bulk write to reg 0x%x %d\n",
+ reg, ret);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(da9150_bulk_write);
+
+static struct regmap_irq da9150_irqs[] = {
+ [DA9150_IRQ_VBUS] = {
+ .reg_offset = 0,
+ .mask = DA9150_E_VBUS_MASK,
+ },
+ [DA9150_IRQ_CHG] = {
+ .reg_offset = 0,
+ .mask = DA9150_E_CHG_MASK,
+ },
+ [DA9150_IRQ_TCLASS] = {
+ .reg_offset = 0,
+ .mask = DA9150_E_TCLASS_MASK,
+ },
+ [DA9150_IRQ_TJUNC] = {
+ .reg_offset = 0,
+ .mask = DA9150_E_TJUNC_MASK,
+ },
+ [DA9150_IRQ_VFAULT] = {
+ .reg_offset = 0,
+ .mask = DA9150_E_VFAULT_MASK,
+ },
+ [DA9150_IRQ_CONF] = {
+ .reg_offset = 1,
+ .mask = DA9150_E_CONF_MASK,
+ },
+ [DA9150_IRQ_DAT] = {
+ .reg_offset = 1,
+ .mask = DA9150_E_DAT_MASK,
+ },
+ [DA9150_IRQ_DTYPE] = {
+ .reg_offset = 1,
+ .mask = DA9150_E_DTYPE_MASK,
+ },
+ [DA9150_IRQ_ID] = {
+ .reg_offset = 1,
+ .mask = DA9150_E_ID_MASK,
+ },
+ [DA9150_IRQ_ADP] = {
+ .reg_offset = 1,
+ .mask = DA9150_E_ADP_MASK,
+ },
+ [DA9150_IRQ_SESS_END] = {
+ .reg_offset = 1,
+ .mask = DA9150_E_SESS_END_MASK,
+ },
+ [DA9150_IRQ_SESS_VLD] = {
+ .reg_offset = 1,
+ .mask = DA9150_E_SESS_VLD_MASK,
+ },
+ [DA9150_IRQ_FG] = {
+ .reg_offset = 2,
+ .mask = DA9150_E_FG_MASK,
+ },
+ [DA9150_IRQ_GP] = {
+ .reg_offset = 2,
+ .mask = DA9150_E_GP_MASK,
+ },
+ [DA9150_IRQ_TBAT] = {
+ .reg_offset = 2,
+ .mask = DA9150_E_TBAT_MASK,
+ },
+ [DA9150_IRQ_GPIOA] = {
+ .reg_offset = 2,
+ .mask = DA9150_E_GPIOA_MASK,
+ },
+ [DA9150_IRQ_GPIOB] = {
+ .reg_offset = 2,
+ .mask = DA9150_E_GPIOB_MASK,
+ },
+ [DA9150_IRQ_GPIOC] = {
+ .reg_offset = 2,
+ .mask = DA9150_E_GPIOC_MASK,
+ },
+ [DA9150_IRQ_GPIOD] = {
+ .reg_offset = 2,
+ .mask = DA9150_E_GPIOD_MASK,
+ },
+ [DA9150_IRQ_GPADC] = {
+ .reg_offset = 2,
+ .mask = DA9150_E_GPADC_MASK,
+ },
+ [DA9150_IRQ_WKUP] = {
+ .reg_offset = 3,
+ .mask = DA9150_E_WKUP_MASK,
+ },
+};
+
+static struct regmap_irq_chip da9150_regmap_irq_chip = {
+ .name = "da9150_irq",
+ .status_base = DA9150_EVENT_E,
+ .mask_base = DA9150_IRQ_MASK_E,
+ .ack_base = DA9150_EVENT_E,
+ .num_regs = DA9150_NUM_IRQ_REGS,
+ .irqs = da9150_irqs,
+ .num_irqs = ARRAY_SIZE(da9150_irqs),
+};
+
+/* Helper functions for sub-devices to request/free IRQs */
+int da9150_register_irq(struct platform_device *pdev, void *dev_id,
+ irq_handler_t handler, const char *name)
+{
+ int irq, ret;
+
+ irq = platform_get_irq_byname(pdev, name);
+ if (irq < 0)
+ return irq;
+
+ ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, handler,
+ IRQF_ONESHOT, name, dev_id);
+ if (ret)
+ dev_err(&pdev->dev, "Failed to request IRQ %d: %d\n", irq, ret);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(da9150_register_irq);
+
+void da9150_release_irq(struct platform_device *pdev, void *dev_id,
+ const char *name)
+{
+ int irq;
+
+ irq = platform_get_irq_byname(pdev, name);
+ if (irq < 0)
+ return;
+
+ devm_free_irq(&pdev->dev, irq, dev_id);
+}
+EXPORT_SYMBOL_GPL(da9150_release_irq);
+
+static struct resource da9150_gpadc_resources[] = {
+ {
+ .name = "GPADC",
+ .start = DA9150_IRQ_GPADC,
+ .end = DA9150_IRQ_GPADC,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource da9150_charger_resources[] = {
+ {
+ .name = "CHG_STATUS",
+ .start = DA9150_IRQ_CHG,
+ .end = DA9150_IRQ_CHG,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "CHG_TJUNC",
+ .start = DA9150_IRQ_TJUNC,
+ .end = DA9150_IRQ_TJUNC,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "CHG_VFAULT",
+ .start = DA9150_IRQ_VFAULT,
+ .end = DA9150_IRQ_VFAULT,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "CHG_VBUS",
+ .start = DA9150_IRQ_VBUS,
+ .end = DA9150_IRQ_VBUS,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct mfd_cell da9150_devs[] = {
+ {
+ .name = "da9150-gpadc",
+ .of_compatible = "dlg,da9150-gpadc",
+ .resources = da9150_gpadc_resources,
+ .num_resources = ARRAY_SIZE(da9150_gpadc_resources),
+ },
+ {
+ .name = "da9150-charger",
+ .of_compatible = "dlg,da9150-charger",
+ .resources = da9150_charger_resources,
+ .num_resources = ARRAY_SIZE(da9150_charger_resources),
+ },
+};
+
+int da9150_device_init(struct da9150 *da9150)
+{
+ struct da9150_pdata *pdata = da9150->dev->platform_data;
+ int ret;
+
+ /* Handle platform data */
+ if (pdata)
+ da9150->irq_base = pdata->irq_base;
+ else
+ da9150->irq_base = -1;
+
+ /* Init IRQs */
+ ret = regmap_add_irq_chip(da9150->regmap, da9150->irq,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ da9150->irq_base, &da9150_regmap_irq_chip,
+ &da9150->regmap_irq_data);
+ if (ret < 0)
+ goto err_irq;
+
+ da9150->irq_base = regmap_irq_chip_get_base(da9150->regmap_irq_data);
+
+ /* Make the IRQ line a wake source */
+ enable_irq_wake(da9150->irq);
+
+ /* Add MFD Devices */
+ ret = mfd_add_devices(da9150->dev, -1, da9150_devs,
+ ARRAY_SIZE(da9150_devs), NULL,
+ da9150->irq_base, NULL);
+ if (ret < 0) {
+ dev_err(da9150->dev, "Failed to add child devices: %d\n", ret);
+ goto err_mfd;
+ }
+
+ return 0;
+
+err_mfd:
+ regmap_del_irq_chip(da9150->irq, da9150->regmap_irq_data);
+err_irq:
+ return ret;
+}
+
+void da9150_device_exit(struct da9150 *da9150)
+{
+ regmap_del_irq_chip(da9150->irq, da9150->regmap_irq_data);
+ mfd_remove_devices(da9150->dev);
+}
+
+void da9150_device_shutdown(struct da9150 *da9150)
+{
+ /* Make sure we have a wakup source for the device */
+ da9150_set_bits(da9150, DA9150_CONFIG_D,
+ DA9150_WKUP_PM_EN_MASK,
+ DA9150_WKUP_PM_EN_MASK);
+
+ /* Set device to DISABLED mode */
+ da9150_set_bits(da9150, DA9150_CONTROL_C,
+ DA9150_DISABLE_MASK, DA9150_DISABLE_MASK);
+}
+
+MODULE_DESCRIPTION("MFD Core Driver for DA9150");
+MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/da9150-i2c.c b/drivers/mfd/da9150-i2c.c
new file mode 100644
index 0000000..a02525c
--- /dev/null
+++ b/drivers/mfd/da9150-i2c.c
@@ -0,0 +1,176 @@
+/*
+ * DA9150 I2C Driver
+ *
+ * Copyright (c) 2014 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/da9150/core.h>
+#include <linux/mfd/da9150/registers.h>
+
+static bool da9150_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case DA9150_PAGE_CON:
+ case DA9150_STATUS_A:
+ case DA9150_STATUS_B:
+ case DA9150_STATUS_C:
+ case DA9150_STATUS_D:
+ case DA9150_STATUS_E:
+ case DA9150_STATUS_F:
+ case DA9150_STATUS_G:
+ case DA9150_STATUS_H:
+ case DA9150_STATUS_I:
+ case DA9150_STATUS_J:
+ case DA9150_STATUS_K:
+ case DA9150_STATUS_L:
+ case DA9150_STATUS_N:
+ case DA9150_FAULT_LOG_A:
+ case DA9150_FAULT_LOG_B:
+ case DA9150_EVENT_E:
+ case DA9150_EVENT_F:
+ case DA9150_EVENT_G:
+ case DA9150_EVENT_H:
+ case DA9150_CONTROL_B:
+ case DA9150_CONTROL_C:
+ case DA9150_GPADC_MAN:
+ case DA9150_GPADC_RES_A:
+ case DA9150_GPADC_RES_B:
+ case DA9150_ADETVB_CFG_C:
+ case DA9150_ADETD_STAT:
+ case DA9150_ADET_CMPSTAT:
+ case DA9150_ADET_CTRL_A:
+ case DA9150_PPR_TCTR_B:
+ case DA9150_COREBTLD_STAT_A:
+ case DA9150_CORE_DATA_A:
+ case DA9150_CORE_DATA_B:
+ case DA9150_CORE_DATA_C:
+ case DA9150_CORE_DATA_D:
+ case DA9150_CORE2WIRE_STAT_A:
+ case DA9150_FW_CTRL_C:
+ case DA9150_FG_CTRL_B:
+ case DA9150_FW_CTRL_B:
+ case DA9150_GPADC_CMAN:
+ case DA9150_GPADC_CRES_A:
+ case DA9150_GPADC_CRES_B:
+ case DA9150_CC_ICHG_RES_A:
+ case DA9150_CC_ICHG_RES_B:
+ case DA9150_CC_IAVG_RES_A:
+ case DA9150_CC_IAVG_RES_B:
+ case DA9150_TAUX_CTRL_A:
+ case DA9150_TAUX_VALUE_H:
+ case DA9150_TAUX_VALUE_L:
+ case DA9150_TBAT_RES_A:
+ case DA9150_TBAT_RES_B:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_range_cfg da9150_range_cfg[] = {
+ {
+ .range_min = DA9150_PAGE_CON,
+ .range_max = DA9150_TBAT_RES_B,
+ .selector_reg = DA9150_PAGE_CON,
+ .selector_mask = DA9150_I2C_PAGE_MASK,
+ .selector_shift = DA9150_I2C_PAGE_SHIFT,
+ .window_start = 0,
+ .window_len = 256,
+ },
+};
+
+static struct regmap_config da9150_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .ranges = da9150_range_cfg,
+ .num_ranges = ARRAY_SIZE(da9150_range_cfg),
+ .max_register = DA9150_TBAT_RES_B,
+
+ .cache_type = REGCACHE_RBTREE,
+
+ .volatile_reg = da9150_volatile_reg,
+};
+
+static int da9150_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct da9150 *da9150;
+ int ret;
+
+ da9150 = devm_kzalloc(&client->dev, sizeof(struct da9150), GFP_KERNEL);
+ if (da9150 == NULL)
+ return -ENOMEM;
+ da9150->dev = &client->dev;
+ da9150->irq = client->irq;
+ i2c_set_clientdata(client, da9150);
+ dev_set_drvdata(da9150->dev, da9150);
+
+ da9150->regmap = devm_regmap_init_i2c(client, &da9150_regmap_config);
+ if (IS_ERR(da9150->regmap)) {
+ ret = PTR_ERR(da9150->regmap);
+ dev_err(da9150->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ return da9150_device_init(da9150);
+}
+
+static int da9150_remove(struct i2c_client *client)
+{
+ struct da9150 *da9150 = i2c_get_clientdata(client);
+
+ da9150_device_exit(da9150);
+
+ return 0;
+}
+
+static void da9150_shutdown(struct i2c_client *client)
+{
+ struct da9150 *da9150 = i2c_get_clientdata(client);
+
+ da9150_device_shutdown(da9150);
+}
+
+static const struct i2c_device_id da9150_i2c_id[] = {
+ { "da9150", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, da9150_i2c_id);
+
+static const struct of_device_id da9150_of_match[] = {
+ { .compatible = "dlg,da9150", },
+ { }
+};
+
+static struct i2c_driver da9150_driver = {
+ .driver = {
+ .name = "da9150",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(da9150_of_match),
+ },
+ .probe = da9150_probe,
+ .remove = da9150_remove,
+ .shutdown = da9150_shutdown,
+ .id_table = da9150_i2c_id,
+};
+
+module_i2c_driver(da9150_driver);
+
+MODULE_DESCRIPTION("I2C Driver for DA9150");
+MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/da9150/core.h b/include/linux/mfd/da9150/core.h
new file mode 100644
index 0000000..d23c500
--- /dev/null
+++ b/include/linux/mfd/da9150/core.h
@@ -0,0 +1,80 @@
+/*
+ * DA9150 MFD Driver - Core Data
+ *
+ * Copyright (c) 2014 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __DA9150_CORE_H
+#define __DA9150_CORE_H
+
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/regmap.h>
+#include <linux/mutex.h>
+
+/* I2C address paging */
+#define DA9150_REG_PAGE_SHIFT 8
+#define DA9150_REG_PAGE_MASK 0xFF
+
+/* IRQs */
+#define DA9150_NUM_IRQ_REGS 4
+#define DA9150_IRQ_VBUS 0
+#define DA9150_IRQ_CHG 1
+#define DA9150_IRQ_TCLASS 2
+#define DA9150_IRQ_TJUNC 3
+#define DA9150_IRQ_VFAULT 4
+#define DA9150_IRQ_CONF 5
+#define DA9150_IRQ_DAT 6
+#define DA9150_IRQ_DTYPE 7
+#define DA9150_IRQ_ID 8
+#define DA9150_IRQ_ADP 9
+#define DA9150_IRQ_SESS_END 10
+#define DA9150_IRQ_SESS_VLD 11
+#define DA9150_IRQ_FG 12
+#define DA9150_IRQ_GP 13
+#define DA9150_IRQ_TBAT 14
+#define DA9150_IRQ_GPIOA 15
+#define DA9150_IRQ_GPIOB 16
+#define DA9150_IRQ_GPIOC 17
+#define DA9150_IRQ_GPIOD 18
+#define DA9150_IRQ_GPADC 19
+#define DA9150_IRQ_WKUP 20
+
+struct da9150 {
+ struct device *dev;
+
+ struct regmap *regmap;
+
+ struct regmap_irq_chip_data *regmap_irq_data;
+ int irq;
+ int irq_base;
+};
+
+/* Device I/O */
+u8 da9150_reg_read(struct da9150 *da9150, u16 reg);
+int da9150_reg_write(struct da9150 *da9150, u16 reg, u8 val);
+int da9150_set_bits(struct da9150 *da9150, u16 reg, u8 mask, u8 val);
+
+int da9150_bulk_read(struct da9150 *da9150, u16 reg, int count, u8 *buf);
+int da9150_bulk_write(struct da9150 *da9150, u16 reg, int count, const u8 *buf);
+
+/* IRQ helper functions */
+int da9150_register_irq(struct platform_device *pdev, void *dev_id,
+ irq_handler_t handler, const char *name);
+void da9150_release_irq(struct platform_device *pdev, void *dev_id,
+ const char *name);
+
+/* Init/Exit */
+int da9150_device_init(struct da9150 *da9150);
+void da9150_device_exit(struct da9150 *da9150);
+void da9150_device_shutdown(struct da9150 *da9150);
+
+#endif /* __DA9150_CORE_H */
diff --git a/include/linux/mfd/da9150/pdata.h b/include/linux/mfd/da9150/pdata.h
new file mode 100644
index 0000000..e2b37f1
--- /dev/null
+++ b/include/linux/mfd/da9150/pdata.h
@@ -0,0 +1,21 @@
+/*
+ * DA9150 MFD Driver - Platform Data
+ *
+ * Copyright (c) 2014 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __DA9150_PDATA_H
+#define __DA9150_PDATA_H
+
+struct da9150_pdata {
+ int irq_base;
+};
+
+#endif /* __DA9150_PDATA_H */
diff --git a/include/linux/mfd/da9150/registers.h b/include/linux/mfd/da9150/registers.h
new file mode 100644
index 0000000..ef4826d
--- /dev/null
+++ b/include/linux/mfd/da9150/registers.h
@@ -0,0 +1,1153 @@
+/*
+ * DA9150 MFD Driver - Registers
+ *
+ * Copyright (c) 2014 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __DA9150_REGISTERS_H
+#define __DA9150_REGISTERS_H
+
+/* Registers */
+#define DA9150_PAGE_CON 0x000
+#define DA9150_STATUS_A 0x068
+#define DA9150_STATUS_B 0x069
+#define DA9150_STATUS_C 0x06A
+#define DA9150_STATUS_D 0x06B
+#define DA9150_STATUS_E 0x06C
+#define DA9150_STATUS_F 0x06D
+#define DA9150_STATUS_G 0x06E
+#define DA9150_STATUS_H 0x06F
+#define DA9150_STATUS_I 0x070
+#define DA9150_STATUS_J 0x071
+#define DA9150_STATUS_K 0x072
+#define DA9150_STATUS_L 0x073
+#define DA9150_STATUS_N 0x074
+#define DA9150_FAULT_LOG_A 0x076
+#define DA9150_FAULT_LOG_B 0x077
+#define DA9150_EVENT_E 0x078
+#define DA9150_EVENT_F 0x079
+#define DA9150_EVENT_G 0x07A
+#define DA9150_EVENT_H 0x07B
+#define DA9150_IRQ_MASK_E 0x07C
+#define DA9150_IRQ_MASK_F 0x07D
+#define DA9150_IRQ_MASK_G 0x07E
+#define DA9150_IRQ_MASK_H 0x07F
+#define DA9150_PAGE_CON_1 0x080
+#define DA9150_CONFIG_A 0x0E0
+#define DA9150_CONFIG_B 0x0E1
+#define DA9150_CONFIG_C 0x0E2
+#define DA9150_CONFIG_D 0x0E3
+#define DA9150_CONFIG_E 0x0E4
+#define DA9150_CONTROL_A 0x0E5
+#define DA9150_CONTROL_B 0x0E6
+#define DA9150_CONTROL_C 0x0E7
+#define DA9150_GPIO_A_B 0x0E8
+#define DA9150_GPIO_C_D 0x0E9
+#define DA9150_GPIO_MODE_CONT 0x0EA
+#define DA9150_GPIO_CTRL_B 0x0EB
+#define DA9150_GPIO_CTRL_A 0x0EC
+#define DA9150_GPIO_CTRL_C 0x0ED
+#define DA9150_GPIO_CFG_A 0x0EE
+#define DA9150_GPIO_CFG_B 0x0EF
+#define DA9150_GPIO_CFG_C 0x0F0
+#define DA9150_GPADC_MAN 0x0F2
+#define DA9150_GPADC_RES_A 0x0F4
+#define DA9150_GPADC_RES_B 0x0F5
+#define DA9150_PAGE_CON_2 0x100
+#define DA9150_OTP_CONT_SHARED 0x101
+#define DA9150_INTERFACE_SHARED 0x105
+#define DA9150_CONFIG_A_SHARED 0x106
+#define DA9150_CONFIG_D_SHARED 0x109
+#define DA9150_ADETVB_CFG_C 0x150
+#define DA9150_ADETD_STAT 0x151
+#define DA9150_ADET_CMPSTAT 0x152
+#define DA9150_ADET_CTRL_A 0x153
+#define DA9150_ADETVB_CFG_B 0x154
+#define DA9150_ADETVB_CFG_A 0x155
+#define DA9150_ADETAC_CFG_A 0x156
+#define DA9150_ADDETAC_CFG_B 0x157
+#define DA9150_ADETAC_CFG_C 0x158
+#define DA9150_ADETAC_CFG_D 0x159
+#define DA9150_ADETVB_CFG_D 0x15A
+#define DA9150_ADETID_CFG_A 0x15B
+#define DA9150_ADET_RID_PT_CHG_H 0x15C
+#define DA9150_ADET_RID_PT_CHG_L 0x15D
+#define DA9150_PPR_TCTR_B 0x160
+#define DA9150_PPR_BKCTRL_A 0x163
+#define DA9150_PPR_BKCFG_A 0x164
+#define DA9150_PPR_BKCFG_B 0x165
+#define DA9150_PPR_CHGCTRL_A 0x166
+#define DA9150_PPR_CHGCTRL_B 0x167
+#define DA9150_PPR_CHGCTRL_C 0x168
+#define DA9150_PPR_TCTR_A 0x169
+#define DA9150_PPR_CHGCTRL_D 0x16A
+#define DA9150_PPR_CHGCTRL_E 0x16B
+#define DA9150_PPR_CHGCTRL_F 0x16C
+#define DA9150_PPR_CHGCTRL_G 0x16D
+#define DA9150_PPR_CHGCTRL_H 0x16E
+#define DA9150_PPR_CHGCTRL_I 0x16F
+#define DA9150_PPR_CHGCTRL_J 0x170
+#define DA9150_PPR_CHGCTRL_K 0x171
+#define DA9150_PPR_CHGCTRL_L 0x172
+#define DA9150_PPR_CHGCTRL_M 0x173
+#define DA9150_PPR_THYST_A 0x174
+#define DA9150_PPR_THYST_B 0x175
+#define DA9150_PPR_THYST_C 0x176
+#define DA9150_PPR_THYST_D 0x177
+#define DA9150_PPR_THYST_E 0x178
+#define DA9150_PPR_THYST_F 0x179
+#define DA9150_PPR_THYST_G 0x17A
+#define DA9150_PAGE_CON_3 0x180
+#define DA9150_PAGE_CON_4 0x200
+#define DA9150_PAGE_CON_5 0x280
+#define DA9150_PAGE_CON_6 0x300
+#define DA9150_COREBTLD_STAT_A 0x302
+#define DA9150_COREBTLD_CTRL_A 0x303
+#define DA9150_CORE_CONFIG_A 0x304
+#define DA9150_CORE_CONFIG_C 0x305
+#define DA9150_CORE_CONFIG_B 0x306
+#define DA9150_CORE_CFG_DATA_A 0x307
+#define DA9150_CORE_CFG_DATA_B 0x308
+#define DA9150_CORE_CMD_A 0x309
+#define DA9150_CORE_DATA_A 0x30A
+#define DA9150_CORE_DATA_B 0x30B
+#define DA9150_CORE_DATA_C 0x30C
+#define DA9150_CORE_DATA_D 0x30D
+#define DA9150_CORE2WIRE_STAT_A 0x310
+#define DA9150_CORE2WIRE_CTRL_A 0x311
+#define DA9150_FW_CTRL_A 0x312
+#define DA9150_FW_CTRL_C 0x313
+#define DA9150_FW_CTRL_D 0x314
+#define DA9150_FG_CTRL_A 0x315
+#define DA9150_FG_CTRL_B 0x316
+#define DA9150_FW_CTRL_E 0x317
+#define DA9150_FW_CTRL_B 0x318
+#define DA9150_GPADC_CMAN 0x320
+#define DA9150_GPADC_CRES_A 0x322
+#define DA9150_GPADC_CRES_B 0x323
+#define DA9150_CC_CFG_A 0x328
+#define DA9150_CC_CFG_B 0x329
+#define DA9150_CC_ICHG_RES_A 0x32A
+#define DA9150_CC_ICHG_RES_B 0x32B
+#define DA9150_CC_IAVG_RES_A 0x32C
+#define DA9150_CC_IAVG_RES_B 0x32D
+#define DA9150_TAUX_CTRL_A 0x330
+#define DA9150_TAUX_RELOAD_H 0x332
+#define DA9150_TAUX_RELOAD_L 0x333
+#define DA9150_TAUX_VALUE_H 0x334
+#define DA9150_TAUX_VALUE_L 0x335
+#define DA9150_AUX_DATA_0 0x338
+#define DA9150_AUX_DATA_1 0x339
+#define DA9150_AUX_DATA_2 0x33A
+#define DA9150_AUX_DATA_3 0x33B
+#define DA9150_BIF_CTRL 0x340
+#define DA9150_TBAT_CTRL_A 0x342
+#define DA9150_TBAT_CTRL_B 0x343
+#define DA9150_TBAT_RES_A 0x344
+#define DA9150_TBAT_RES_B 0x345
+
+/* DA9150_PAGE_CON = 0x000 */
+#define DA9150_PAGE_SHIFT 0
+#define DA9150_PAGE_MASK (0x3f << 0)
+#define DA9150_I2C_PAGE_SHIFT 1
+#define DA9150_I2C_PAGE_MASK (0x1f << 1)
+#define DA9150_WRITE_MODE_SHIFT 6
+#define DA9150_WRITE_MODE_MASK (0x01 << 6)
+#define DA9150_REVERT_SHIFT 7
+#define DA9150_REVERT_MASK (0x01 << 7)
+
+/* DA9150_STATUS_A = 0x068 */
+#define DA9150_WKUP_STAT_SHIFT 2
+#define DA9150_WKUP_STAT_MASK (0x0f << 2)
+#define DA9150_SLEEP_STAT_SHIFT 6
+#define DA9150_SLEEP_STAT_MASK (0x03 << 6)
+
+/* DA9150_STATUS_B = 0x069 */
+#define DA9150_VFAULT_STAT_SHIFT 0
+#define DA9150_VFAULT_STAT_MASK (0x01 << 0)
+#define DA9150_TFAULT_STAT_SHIFT 1
+#define DA9150_TFAULT_STAT_MASK (0x01 << 1)
+
+/* DA9150_STATUS_C = 0x06A */
+#define DA9150_VDD33_STAT_SHIFT 0
+#define DA9150_VDD33_STAT_MASK (0x01 << 0)
+#define DA9150_VDD33_SLEEP_SHIFT 1
+#define DA9150_VDD33_SLEEP_MASK (0x01 << 1)
+#define DA9150_LFOSC_STAT_SHIFT 7
+#define DA9150_LFOSC_STAT_MASK (0x01 << 7)
+
+/* DA9150_STATUS_D = 0x06B */
+#define DA9150_GPIOA_STAT_SHIFT 0
+#define DA9150_GPIOA_STAT_MASK (0x01 << 0)
+#define DA9150_GPIOB_STAT_SHIFT 1
+#define DA9150_GPIOB_STAT_MASK (0x01 << 1)
+#define DA9150_GPIOC_STAT_SHIFT 2
+#define DA9150_GPIOC_STAT_MASK (0x01 << 2)
+#define DA9150_GPIOD_STAT_SHIFT 3
+#define DA9150_GPIOD_STAT_MASK (0x01 << 3)
+
+/* DA9150_STATUS_E = 0x06C */
+#define DA9150_DTYPE_SHIFT 0
+#define DA9150_DTYPE_MASK (0x1f << 0)
+#define DA9150_DTYPE_DT_NIL (0x00 << 0)
+#define DA9150_DTYPE_DT_USB_OTG (0x01 << 0)
+#define DA9150_DTYPE_DT_USB_STD (0x02 << 0)
+#define DA9150_DTYPE_DT_USB_CHG (0x03 << 0)
+#define DA9150_DTYPE_DT_ACA_CHG (0x04 << 0)
+#define DA9150_DTYPE_DT_ACA_OTG (0x05 << 0)
+#define DA9150_DTYPE_DT_ACA_DOC (0x06 << 0)
+#define DA9150_DTYPE_DT_DED_CHG (0x07 << 0)
+#define DA9150_DTYPE_DT_CR5_CHG (0x08 << 0)
+#define DA9150_DTYPE_DT_CR4_CHG (0x0c << 0)
+#define DA9150_DTYPE_DT_PT_CHG (0x11 << 0)
+#define DA9150_DTYPE_DT_NN_ACC (0x16 << 0)
+#define DA9150_DTYPE_DT_NN_CHG (0x17 << 0)
+
+/* DA9150_STATUS_F = 0x06D */
+#define DA9150_SESS_VLD_SHIFT 0
+#define DA9150_SESS_VLD_MASK (0x01 << 0)
+#define DA9150_ID_ERR_SHIFT 1
+#define DA9150_ID_ERR_MASK (0x01 << 1)
+#define DA9150_PT_CHG_SHIFT 2
+#define DA9150_PT_CHG_MASK (0x01 << 2)
+
+/* DA9150_STATUS_G = 0x06E */
+#define DA9150_RID_SHIFT 0
+#define DA9150_RID_MASK (0xff << 0)
+
+/* DA9150_STATUS_H = 0x06F */
+#define DA9150_VBUS_STAT_SHIFT 0
+#define DA9150_VBUS_STAT_MASK (0x07 << 0)
+#define DA9150_VBUS_STAT_OFF (0x00 << 0)
+#define DA9150_VBUS_STAT_WAIT (0x01 << 0)
+#define DA9150_VBUS_STAT_CHG (0x02 << 0)
+#define DA9150_VBUS_TRED_SHIFT 3
+#define DA9150_VBUS_TRED_MASK (0x01 << 3)
+#define DA9150_VBUS_DROP_STAT_SHIFT 4
+#define DA9150_VBUS_DROP_STAT_MASK (0x0f << 4)
+
+/* DA9150_STATUS_I = 0x070 */
+#define DA9150_VBUS_ISET_STAT_SHIFT 0
+#define DA9150_VBUS_ISET_STAT_MASK (0x1f << 0)
+#define DA9150_VBUS_OT_SHIFT 7
+#define DA9150_VBUS_OT_MASK (0x01 << 7)
+
+/* DA9150_STATUS_J = 0x071 */
+#define DA9150_CHG_STAT_SHIFT 0
+#define DA9150_CHG_STAT_MASK (0x0f << 0)
+#define DA9150_CHG_STAT_OFF (0x00 << 0)
+#define DA9150_CHG_STAT_SUSP (0x01 << 0)
+#define DA9150_CHG_STAT_ACT (0x02 << 0)
+#define DA9150_CHG_STAT_PRE (0x03 << 0)
+#define DA9150_CHG_STAT_CC (0x04 << 0)
+#define DA9150_CHG_STAT_CV (0x05 << 0)
+#define DA9150_CHG_STAT_FULL (0x06 << 0)
+#define DA9150_CHG_STAT_TEMP (0x07 << 0)
+#define DA9150_CHG_STAT_TIME (0x08 << 0)
+#define DA9150_CHG_STAT_BAT (0x09 << 0)
+#define DA9150_CHG_TEMP_SHIFT 4
+#define DA9150_CHG_TEMP_MASK (0x07 << 4)
+#define DA9150_CHG_TEMP_UNDER (0x06 << 4)
+#define DA9150_CHG_TEMP_OVER (0x07 << 4)
+#define DA9150_CHG_IEND_STAT_SHIFT 7
+#define DA9150_CHG_IEND_STAT_MASK (0x01 << 7)
+
+/* DA9150_STATUS_K = 0x072 */
+#define DA9150_CHG_IAV_H_SHIFT 0
+#define DA9150_CHG_IAV_H_MASK (0xff << 0)
+
+/* DA9150_STATUS_L = 0x073 */
+#define DA9150_CHG_IAV_L_SHIFT 5
+#define DA9150_CHG_IAV_L_MASK (0x07 << 5)
+
+/* DA9150_STATUS_N = 0x074 */
+#define DA9150_CHG_TIME_SHIFT 1
+#define DA9150_CHG_TIME_MASK (0x01 << 1)
+#define DA9150_CHG_TRED_SHIFT 2
+#define DA9150_CHG_TRED_MASK (0x01 << 2)
+#define DA9150_CHG_TJUNC_CLASS_SHIFT 3
+#define DA9150_CHG_TJUNC_CLASS_MASK (0x07 << 3)
+#define DA9150_CHG_TJUNC_CLASS_6 (0x06 << 3)
+#define DA9150_EBS_STAT_SHIFT 6
+#define DA9150_EBS_STAT_MASK (0x01 << 6)
+#define DA9150_CHG_BAT_REMOVED_SHIFT 7
+#define DA9150_CHG_BAT_REMOVED_MASK (0x01 << 7)
+
+/* DA9150_FAULT_LOG_A = 0x076 */
+#define DA9150_TEMP_FAULT_SHIFT 0
+#define DA9150_TEMP_FAULT_MASK (0x01 << 0)
+#define DA9150_VSYS_FAULT_SHIFT 1
+#define DA9150_VSYS_FAULT_MASK (0x01 << 1)
+#define DA9150_START_FAULT_SHIFT 2
+#define DA9150_START_FAULT_MASK (0x01 << 2)
+#define DA9150_EXT_FAULT_SHIFT 3
+#define DA9150_EXT_FAULT_MASK (0x01 << 3)
+#define DA9150_POR_FAULT_SHIFT 4
+#define DA9150_POR_FAULT_MASK (0x01 << 4)
+
+/* DA9150_FAULT_LOG_B = 0x077 */
+#define DA9150_VBUS_FAULT_SHIFT 0
+#define DA9150_VBUS_FAULT_MASK (0x01 << 0)
+#define DA9150_OTG_FAULT_SHIFT 1
+#define DA9150_OTG_FAULT_MASK (0x01 << 1)
+
+/* DA9150_EVENT_E = 0x078 */
+#define DA9150_E_VBUS_SHIFT 0
+#define DA9150_E_VBUS_MASK (0x01 << 0)
+#define DA9150_E_CHG_SHIFT 1
+#define DA9150_E_CHG_MASK (0x01 << 1)
+#define DA9150_E_TCLASS_SHIFT 2
+#define DA9150_E_TCLASS_MASK (0x01 << 2)
+#define DA9150_E_TJUNC_SHIFT 3
+#define DA9150_E_TJUNC_MASK (0x01 << 3)
+#define DA9150_E_VFAULT_SHIFT 4
+#define DA9150_E_VFAULT_MASK (0x01 << 4)
+#define DA9150_EVENTS_H_SHIFT 5
+#define DA9150_EVENTS_H_MASK (0x01 << 5)
+#define DA9150_EVENTS_G_SHIFT 6
+#define DA9150_EVENTS_G_MASK (0x01 << 6)
+#define DA9150_EVENTS_F_SHIFT 7
+#define DA9150_EVENTS_F_MASK (0x01 << 7)
+
+/* DA9150_EVENT_F = 0x079 */
+#define DA9150_E_CONF_SHIFT 0
+#define DA9150_E_CONF_MASK (0x01 << 0)
+#define DA9150_E_DAT_SHIFT 1
+#define DA9150_E_DAT_MASK (0x01 << 1)
+#define DA9150_E_DTYPE_SHIFT 3
+#define DA9150_E_DTYPE_MASK (0x01 << 3)
+#define DA9150_E_ID_SHIFT 4
+#define DA9150_E_ID_MASK (0x01 << 4)
+#define DA9150_E_ADP_SHIFT 5
+#define DA9150_E_ADP_MASK (0x01 << 5)
+#define DA9150_E_SESS_END_SHIFT 6
+#define DA9150_E_SESS_END_MASK (0x01 << 6)
+#define DA9150_E_SESS_VLD_SHIFT 7
+#define DA9150_E_SESS_VLD_MASK (0x01 << 7)
+
+/* DA9150_EVENT_G = 0x07A */
+#define DA9150_E_FG_SHIFT 0
+#define DA9150_E_FG_MASK (0x01 << 0)
+#define DA9150_E_GP_SHIFT 1
+#define DA9150_E_GP_MASK (0x01 << 1)
+#define DA9150_E_TBAT_SHIFT 2
+#define DA9150_E_TBAT_MASK (0x01 << 2)
+#define DA9150_E_GPIOA_SHIFT 3
+#define DA9150_E_GPIOA_MASK (0x01 << 3)
+#define DA9150_E_GPIOB_SHIFT 4
+#define DA9150_E_GPIOB_MASK (0x01 << 4)
+#define DA9150_E_GPIOC_SHIFT 5
+#define DA9150_E_GPIOC_MASK (0x01 << 5)
+#define DA9150_E_GPIOD_SHIFT 6
+#define DA9150_E_GPIOD_MASK (0x01 << 6)
+#define DA9150_E_GPADC_SHIFT 7
+#define DA9150_E_GPADC_MASK (0x01 << 7)
+
+/* DA9150_EVENT_H = 0x07B */
+#define DA9150_E_WKUP_SHIFT 0
+#define DA9150_E_WKUP_MASK (0x01 << 0)
+
+/* DA9150_IRQ_MASK_E = 0x07C */
+#define DA9150_M_VBUS_SHIFT 0
+#define DA9150_M_VBUS_MASK (0x01 << 0)
+#define DA9150_M_CHG_SHIFT 1
+#define DA9150_M_CHG_MASK (0x01 << 1)
+#define DA9150_M_TJUNC_SHIFT 3
+#define DA9150_M_TJUNC_MASK (0x01 << 3)
+#define DA9150_M_VFAULT_SHIFT 4
+#define DA9150_M_VFAULT_MASK (0x01 << 4)
+
+/* DA9150_IRQ_MASK_F = 0x07D */
+#define DA9150_M_CONF_SHIFT 0
+#define DA9150_M_CONF_MASK (0x01 << 0)
+#define DA9150_M_DAT_SHIFT 1
+#define DA9150_M_DAT_MASK (0x01 << 1)
+#define DA9150_M_DTYPE_SHIFT 3
+#define DA9150_M_DTYPE_MASK (0x01 << 3)
+#define DA9150_M_ID_SHIFT 4
+#define DA9150_M_ID_MASK (0x01 << 4)
+#define DA9150_M_ADP_SHIFT 5
+#define DA9150_M_ADP_MASK (0x01 << 5)
+#define DA9150_M_SESS_END_SHIFT 6
+#define DA9150_M_SESS_END_MASK (0x01 << 6)
+#define DA9150_M_SESS_VLD_SHIFT 7
+#define DA9150_M_SESS_VLD_MASK (0x01 << 7)
+
+/* DA9150_IRQ_MASK_G = 0x07E */
+#define DA9150_M_FG_SHIFT 0
+#define DA9150_M_FG_MASK (0x01 << 0)
+#define DA9150_M_GP_SHIFT 1
+#define DA9150_M_GP_MASK (0x01 << 1)
+#define DA9150_M_TBAT_SHIFT 2
+#define DA9150_M_TBAT_MASK (0x01 << 2)
+#define DA9150_M_GPIOA_SHIFT 3
+#define DA9150_M_GPIOA_MASK (0x01 << 3)
+#define DA9150_M_GPIOB_SHIFT 4
+#define DA9150_M_GPIOB_MASK (0x01 << 4)
+#define DA9150_M_GPIOC_SHIFT 5
+#define DA9150_M_GPIOC_MASK (0x01 << 5)
+#define DA9150_M_GPIOD_SHIFT 6
+#define DA9150_M_GPIOD_MASK (0x01 << 6)
+#define DA9150_M_GPADC_SHIFT 7
+#define DA9150_M_GPADC_MASK (0x01 << 7)
+
+/* DA9150_IRQ_MASK_H = 0x07F */
+#define DA9150_M_WKUP_SHIFT 0
+#define DA9150_M_WKUP_MASK (0x01 << 0)
+
+/* DA9150_PAGE_CON_1 = 0x080 */
+#define DA9150_PAGE_SHIFT 0
+#define DA9150_PAGE_MASK (0x3f << 0)
+#define DA9150_WRITE_MODE_SHIFT 6
+#define DA9150_WRITE_MODE_MASK (0x01 << 6)
+#define DA9150_REVERT_SHIFT 7
+#define DA9150_REVERT_MASK (0x01 << 7)
+
+/* DA9150_CONFIG_A = 0x0E0 */
+#define DA9150_RESET_DUR_SHIFT 0
+#define DA9150_RESET_DUR_MASK (0x03 << 0)
+#define DA9150_RESET_EXT_SHIFT 2
+#define DA9150_RESET_EXT_MASK (0x03 << 2)
+#define DA9150_START_MAX_SHIFT 4
+#define DA9150_START_MAX_MASK (0x03 << 4)
+#define DA9150_PS_WAIT_EN_SHIFT 6
+#define DA9150_PS_WAIT_EN_MASK (0x01 << 6)
+#define DA9150_PS_DISABLE_DIRECT_SHIFT 7
+#define DA9150_PS_DISABLE_DIRECT_MASK (0x01 << 7)
+
+/* DA9150_CONFIG_B = 0x0E1 */
+#define DA9150_VFAULT_ADJ_SHIFT 0
+#define DA9150_VFAULT_ADJ_MASK (0x0f << 0)
+#define DA9150_VFAULT_HYST_SHIFT 4
+#define DA9150_VFAULT_HYST_MASK (0x07 << 4)
+#define DA9150_VFAULT_EN_SHIFT 7
+#define DA9150_VFAULT_EN_MASK (0x01 << 7)
+
+/* DA9150_CONFIG_C = 0x0E2 */
+#define DA9150_VSYS_MIN_SHIFT 3
+#define DA9150_VSYS_MIN_MASK (0x1f << 3)
+
+/* DA9150_CONFIG_D = 0x0E3 */
+#define DA9150_LFOSC_EXT_SHIFT 0
+#define DA9150_LFOSC_EXT_MASK (0x01 << 0)
+#define DA9150_VDD33_DWN_SHIFT 1
+#define DA9150_VDD33_DWN_MASK (0x01 << 1)
+#define DA9150_WKUP_PM_EN_SHIFT 2
+#define DA9150_WKUP_PM_EN_MASK (0x01 << 2)
+#define DA9150_WKUP_CE_SEL_SHIFT 3
+#define DA9150_WKUP_CE_SEL_MASK (0x03 << 3)
+#define DA9150_WKUP_CLK32K_EN_SHIFT 5
+#define DA9150_WKUP_CLK32K_EN_MASK (0x01 << 5)
+#define DA9150_DISABLE_DEL_SHIFT 7
+#define DA9150_DISABLE_DEL_MASK (0x01 << 7)
+
+/* DA9150_CONFIG_E = 0x0E4 */
+#define DA9150_PM_SPKSUP_DIS_SHIFT 0
+#define DA9150_PM_SPKSUP_DIS_MASK (0x01 << 0)
+#define DA9150_PM_MERGE_SHIFT 1
+#define DA9150_PM_MERGE_MASK (0x01 << 1)
+#define DA9150_PM_SR_OFF_SHIFT 2
+#define DA9150_PM_SR_OFF_MASK (0x01 << 2)
+#define DA9150_PM_TIMEOUT_EN_SHIFT 3
+#define DA9150_PM_TIMEOUT_EN_MASK (0x01 << 3)
+#define DA9150_PM_DLY_SEL_SHIFT 4
+#define DA9150_PM_DLY_SEL_MASK (0x07 << 4)
+#define DA9150_PM_OUT_DLY_SEL_SHIFT 7
+#define DA9150_PM_OUT_DLY_SEL_MASK (0x01 << 7)
+
+/* DA9150_CONTROL_A = 0x0E5 */
+#define DA9150_VDD33_SL_SHIFT 0
+#define DA9150_VDD33_SL_MASK (0x01 << 0)
+#define DA9150_VDD33_LPM_SHIFT 1
+#define DA9150_VDD33_LPM_MASK (0x03 << 1)
+#define DA9150_VDD33_EN_SHIFT 3
+#define DA9150_VDD33_EN_MASK (0x01 << 3)
+#define DA9150_GPI_LPM_SHIFT 6
+#define DA9150_GPI_LPM_MASK (0x01 << 6)
+#define DA9150_PM_IF_LPM_SHIFT 7
+#define DA9150_PM_IF_LPM_MASK (0x01 << 7)
+
+/* DA9150_CONTROL_B = 0x0E6 */
+#define DA9150_LPM_SHIFT 0
+#define DA9150_LPM_MASK (0x01 << 0)
+#define DA9150_RESET_SHIFT 1
+#define DA9150_RESET_MASK (0x01 << 1)
+#define DA9150_RESET_USRCONF_EN_SHIFT 2
+#define DA9150_RESET_USRCONF_EN_MASK (0x01 << 2)
+
+/* DA9150_CONTROL_C = 0x0E7 */
+#define DA9150_DISABLE_SHIFT 0
+#define DA9150_DISABLE_MASK (0x01 << 0)
+
+/* DA9150_GPIO_A_B = 0x0E8 */
+#define DA9150_GPIOA_PIN_SHIFT 0
+#define DA9150_GPIOA_PIN_MASK (0x07 << 0)
+#define DA9150_GPIOA_PIN_GPI (0x00 << 0)
+#define DA9150_GPIOA_PIN_GPO_OD (0x01 << 0)
+#define DA9150_GPIOA_TYPE_SHIFT 3
+#define DA9150_GPIOA_TYPE_MASK (0x01 << 3)
+#define DA9150_GPIOB_PIN_SHIFT 4
+#define DA9150_GPIOB_PIN_MASK (0x07 << 4)
+#define DA9150_GPIOB_PIN_GPI (0x00 << 4)
+#define DA9150_GPIOB_PIN_GPO_OD (0x01 << 4)
+#define DA9150_GPIOB_TYPE_SHIFT 7
+#define DA9150_GPIOB_TYPE_MASK (0x01 << 7)
+
+/* DA9150_GPIO_C_D = 0x0E9 */
+#define DA9150_GPIOC_PIN_SHIFT 0
+#define DA9150_GPIOC_PIN_MASK (0x07 << 0)
+#define DA9150_GPIOC_PIN_GPI (0x00 << 0)
+#define DA9150_GPIOC_PIN_GPO_OD (0x01 << 0)
+#define DA9150_GPIOC_TYPE_SHIFT 3
+#define DA9150_GPIOC_TYPE_MASK (0x01 << 3)
+#define DA9150_GPIOD_PIN_SHIFT 4
+#define DA9150_GPIOD_PIN_MASK (0x07 << 4)
+#define DA9150_GPIOD_PIN_GPI (0x00 << 4)
+#define DA9150_GPIOD_PIN_GPO_OD (0x01 << 4)
+#define DA9150_GPIOD_TYPE_SHIFT 7
+#define DA9150_GPIOD_TYPE_MASK (0x01 << 7)
+
+/* DA9150_GPIO_MODE_CONT = 0x0EA */
+#define DA9150_GPIOA_MODE_SHIFT 0
+#define DA9150_GPIOA_MODE_MASK (0x01 << 0)
+#define DA9150_GPIOB_MODE_SHIFT 1
+#define DA9150_GPIOB_MODE_MASK (0x01 << 1)
+#define DA9150_GPIOC_MODE_SHIFT 2
+#define DA9150_GPIOC_MODE_MASK (0x01 << 2)
+#define DA9150_GPIOD_MODE_SHIFT 3
+#define DA9150_GPIOD_MODE_MASK (0x01 << 3)
+#define DA9150_GPIOA_CONT_SHIFT 4
+#define DA9150_GPIOA_CONT_MASK (0x01 << 4)
+#define DA9150_GPIOB_CONT_SHIFT 5
+#define DA9150_GPIOB_CONT_MASK (0x01 << 5)
+#define DA9150_GPIOC_CONT_SHIFT 6
+#define DA9150_GPIOC_CONT_MASK (0x01 << 6)
+#define DA9150_GPIOD_CONT_SHIFT 7
+#define DA9150_GPIOD_CONT_MASK (0x01 << 7)
+
+/* DA9150_GPIO_CTRL_B = 0x0EB */
+#define DA9150_WAKE_PIN_SHIFT 0
+#define DA9150_WAKE_PIN_MASK (0x03 << 0)
+#define DA9150_WAKE_MODE_SHIFT 2
+#define DA9150_WAKE_MODE_MASK (0x01 << 2)
+#define DA9150_WAKE_CONT_SHIFT 3
+#define DA9150_WAKE_CONT_MASK (0x01 << 3)
+#define DA9150_WAKE_DLY_SHIFT 4
+#define DA9150_WAKE_DLY_MASK (0x01 << 4)
+
+/* DA9150_GPIO_CTRL_A = 0x0EC */
+#define DA9150_GPIOA_ANAEN_SHIFT 0
+#define DA9150_GPIOA_ANAEN_MASK (0x01 << 0)
+#define DA9150_GPIOB_ANAEN_SHIFT 1
+#define DA9150_GPIOB_ANAEN_MASK (0x01 << 1)
+#define DA9150_GPIOC_ANAEN_SHIFT 2
+#define DA9150_GPIOC_ANAEN_MASK (0x01 << 2)
+#define DA9150_GPIOD_ANAEN_SHIFT 3
+#define DA9150_GPIOD_ANAEN_MASK (0x01 << 3)
+#define DA9150_GPIO_ANAEN 0x01
+#define DA9150_GPIO_ANAEN_MASK 0x0F
+#define DA9150_CHGLED_PIN_SHIFT 5
+#define DA9150_CHGLED_PIN_MASK (0x07 << 5)
+
+/* DA9150_GPIO_CTRL_C = 0x0ED */
+#define DA9150_CHGBL_DUR_SHIFT 0
+#define DA9150_CHGBL_DUR_MASK (0x03 << 0)
+#define DA9150_CHGBL_DBL_SHIFT 2
+#define DA9150_CHGBL_DBL_MASK (0x01 << 2)
+#define DA9150_CHGBL_FRQ_SHIFT 3
+#define DA9150_CHGBL_FRQ_MASK (0x03 << 3)
+#define DA9150_CHGBL_FLKR_SHIFT 5
+#define DA9150_CHGBL_FLKR_MASK (0x01 << 5)
+
+/* DA9150_GPIO_CFG_A = 0x0EE */
+#define DA9150_CE_LPM_DEB_SHIFT 0
+#define DA9150_CE_LPM_DEB_MASK (0x07 << 0)
+
+/* DA9150_GPIO_CFG_B = 0x0EF */
+#define DA9150_GPIOA_PUPD_SHIFT 0
+#define DA9150_GPIOA_PUPD_MASK (0x01 << 0)
+#define DA9150_GPIOB_PUPD_SHIFT 1
+#define DA9150_GPIOB_PUPD_MASK (0x01 << 1)
+#define DA9150_GPIOC_PUPD_SHIFT 2
+#define DA9150_GPIOC_PUPD_MASK (0x01 << 2)
+#define DA9150_GPIOD_PUPD_SHIFT 3
+#define DA9150_GPIOD_PUPD_MASK (0x01 << 3)
+#define DA9150_GPIO_PUPD_MASK (0xF << 0)
+#define DA9150_GPI_DEB_SHIFT 4
+#define DA9150_GPI_DEB_MASK (0x07 << 4)
+#define DA9150_LPM_EN_SHIFT 7
+#define DA9150_LPM_EN_MASK (0x01 << 7)
+
+/* DA9150_GPIO_CFG_C = 0x0F0 */
+#define DA9150_GPI_V_SHIFT 0
+#define DA9150_GPI_V_MASK (0x01 << 0)
+#define DA9150_VDDIO_INT_SHIFT 1
+#define DA9150_VDDIO_INT_MASK (0x01 << 1)
+#define DA9150_FAULT_PIN_SHIFT 3
+#define DA9150_FAULT_PIN_MASK (0x07 << 3)
+#define DA9150_FAULT_TYPE_SHIFT 6
+#define DA9150_FAULT_TYPE_MASK (0x01 << 6)
+#define DA9150_NIRQ_PUPD_SHIFT 7
+#define DA9150_NIRQ_PUPD_MASK (0x01 << 7)
+
+/* DA9150_GPADC_MAN = 0x0F2 */
+#define DA9150_GPADC_EN_SHIFT 0
+#define DA9150_GPADC_EN_MASK (0x01 << 0)
+#define DA9150_GPADC_MUX_SHIFT 1
+#define DA9150_GPADC_MUX_MASK (0x1f << 1)
+
+/* DA9150_GPADC_RES_A = 0x0F4 */
+#define DA9150_GPADC_RES_H_SHIFT 0
+#define DA9150_GPADC_RES_H_MASK (0xff << 0)
+
+/* DA9150_GPADC_RES_B = 0x0F5 */
+#define DA9150_GPADC_RUN_SHIFT 0
+#define DA9150_GPADC_RUN_MASK (0x01 << 0)
+#define DA9150_GPADC_RES_L_SHIFT 6
+#define DA9150_GPADC_RES_L_MASK (0x03 << 6)
+#define DA9150_GPADC_RES_L_BITS 2
+
+/* DA9150_PAGE_CON_2 = 0x100 */
+#define DA9150_PAGE_SHIFT 0
+#define DA9150_PAGE_MASK (0x3f << 0)
+#define DA9150_WRITE_MODE_SHIFT 6
+#define DA9150_WRITE_MODE_MASK (0x01 << 6)
+#define DA9150_REVERT_SHIFT 7
+#define DA9150_REVERT_MASK (0x01 << 7)
+
+/* DA9150_OTP_CONT_SHARED = 0x101 */
+#define DA9150_PC_DONE_SHIFT 3
+#define DA9150_PC_DONE_MASK (0x01 << 3)
+
+/* DA9150_INTERFACE_SHARED = 0x105 */
+#define DA9150_IF_BASE_ADDR_SHIFT 4
+#define DA9150_IF_BASE_ADDR_MASK (0x0f << 4)
+
+/* DA9150_CONFIG_A_SHARED = 0x106 */
+#define DA9150_NIRQ_VDD_SHIFT 1
+#define DA9150_NIRQ_VDD_MASK (0x01 << 1)
+#define DA9150_NIRQ_PIN_SHIFT 2
+#define DA9150_NIRQ_PIN_MASK (0x01 << 2)
+#define DA9150_NIRQ_TYPE_SHIFT 3
+#define DA9150_NIRQ_TYPE_MASK (0x01 << 3)
+#define DA9150_PM_IF_V_SHIFT 4
+#define DA9150_PM_IF_V_MASK (0x01 << 4)
+#define DA9150_PM_IF_FMP_SHIFT 5
+#define DA9150_PM_IF_FMP_MASK (0x01 << 5)
+#define DA9150_PM_IF_HSM_SHIFT 6
+#define DA9150_PM_IF_HSM_MASK (0x01 << 6)
+
+/* DA9150_CONFIG_D_SHARED = 0x109 */
+#define DA9150_NIRQ_MODE_SHIFT 1
+#define DA9150_NIRQ_MODE_MASK (0x01 << 1)
+
+/* DA9150_ADETVB_CFG_C = 0x150 */
+#define DA9150_TADP_RISE_SHIFT 0
+#define DA9150_TADP_RISE_MASK (0xff << 0)
+
+/* DA9150_ADETD_STAT = 0x151 */
+#define DA9150_DCD_STAT_SHIFT 0
+#define DA9150_DCD_STAT_MASK (0x01 << 0)
+#define DA9150_PCD_STAT_SHIFT 1
+#define DA9150_PCD_STAT_MASK (0x03 << 1)
+#define DA9150_SCD_STAT_SHIFT 3
+#define DA9150_SCD_STAT_MASK (0x03 << 3)
+#define DA9150_DP_STAT_SHIFT 5
+#define DA9150_DP_STAT_MASK (0x01 << 5)
+#define DA9150_DM_STAT_SHIFT 6
+#define DA9150_DM_STAT_MASK (0x01 << 6)
+
+/* DA9150_ADET_CMPSTAT = 0x152 */
+#define DA9150_DP_COMP_SHIFT 1
+#define DA9150_DP_COMP_MASK (0x01 << 1)
+#define DA9150_DM_COMP_SHIFT 2
+#define DA9150_DM_COMP_MASK (0x01 << 2)
+#define DA9150_ADP_SNS_COMP_SHIFT 3
+#define DA9150_ADP_SNS_COMP_MASK (0x01 << 3)
+#define DA9150_ADP_PRB_COMP_SHIFT 4
+#define DA9150_ADP_PRB_COMP_MASK (0x01 << 4)
+#define DA9150_ID_COMP_SHIFT 5
+#define DA9150_ID_COMP_MASK (0x01 << 5)
+
+/* DA9150_ADET_CTRL_A = 0x153 */
+#define DA9150_AID_DAT_SHIFT 0
+#define DA9150_AID_DAT_MASK (0x01 << 0)
+#define DA9150_AID_ID_SHIFT 1
+#define DA9150_AID_ID_MASK (0x01 << 1)
+#define DA9150_AID_TRIG_SHIFT 2
+#define DA9150_AID_TRIG_MASK (0x01 << 2)
+
+/* DA9150_ADETVB_CFG_B = 0x154 */
+#define DA9150_VB_MODE_SHIFT 0
+#define DA9150_VB_MODE_MASK (0x03 << 0)
+#define DA9150_VB_MODE_VB_SESS (0x01 << 0)
+
+#define DA9150_TADP_PRB_SHIFT 2
+#define DA9150_TADP_PRB_MASK (0x01 << 2)
+#define DA9150_DAT_RPD_EXT_SHIFT 5
+#define DA9150_DAT_RPD_EXT_MASK (0x01 << 5)
+#define DA9150_CONF_RPD_SHIFT 6
+#define DA9150_CONF_RPD_MASK (0x01 << 6)
+#define DA9150_CONF_SRP_SHIFT 7
+#define DA9150_CONF_SRP_MASK (0x01 << 7)
+
+/* DA9150_ADETVB_CFG_A = 0x155 */
+#define DA9150_AID_MODE_SHIFT 0
+#define DA9150_AID_MODE_MASK (0x03 << 0)
+#define DA9150_AID_EXT_POL_SHIFT 2
+#define DA9150_AID_EXT_POL_MASK (0x01 << 2)
+
+/* DA9150_ADETAC_CFG_A = 0x156 */
+#define DA9150_ISET_CDP_SHIFT 0
+#define DA9150_ISET_CDP_MASK (0x1f << 0)
+#define DA9150_CONF_DBP_SHIFT 5
+#define DA9150_CONF_DBP_MASK (0x01 << 5)
+
+/* DA9150_ADDETAC_CFG_B = 0x157 */
+#define DA9150_ISET_DCHG_SHIFT 0
+#define DA9150_ISET_DCHG_MASK (0x1f << 0)
+#define DA9150_CONF_GPIOA_SHIFT 5
+#define DA9150_CONF_GPIOA_MASK (0x01 << 5)
+#define DA9150_CONF_GPIOB_SHIFT 6
+#define DA9150_CONF_GPIOB_MASK (0x01 << 6)
+#define DA9150_AID_VB_SHIFT 7
+#define DA9150_AID_VB_MASK (0x01 << 7)
+
+/* DA9150_ADETAC_CFG_C = 0x158 */
+#define DA9150_ISET_DEF_SHIFT 0
+#define DA9150_ISET_DEF_MASK (0x1f << 0)
+#define DA9150_CONF_MODE_SHIFT 5
+#define DA9150_CONF_MODE_MASK (0x03 << 5)
+#define DA9150_AID_CR_DIS_SHIFT 7
+#define DA9150_AID_CR_DIS_MASK (0x01 << 7)
+
+/* DA9150_ADETAC_CFG_D = 0x159 */
+#define DA9150_ISET_UNIT_SHIFT 0
+#define DA9150_ISET_UNIT_MASK (0x1f << 0)
+#define DA9150_AID_UNCLAMP_SHIFT 5
+#define DA9150_AID_UNCLAMP_MASK (0x01 << 5)
+
+/* DA9150_ADETVB_CFG_D = 0x15A */
+#define DA9150_ID_MODE_SHIFT 0
+#define DA9150_ID_MODE_MASK (0x03 << 0)
+#define DA9150_DAT_MODE_SHIFT 2
+#define DA9150_DAT_MODE_MASK (0x0f << 2)
+#define DA9150_DAT_SWP_SHIFT 6
+#define DA9150_DAT_SWP_MASK (0x01 << 6)
+#define DA9150_DAT_CLAMP_EXT_SHIFT 7
+#define DA9150_DAT_CLAMP_EXT_MASK (0x01 << 7)
+
+/* DA9150_ADETID_CFG_A = 0x15B */
+#define DA9150_TID_POLL_SHIFT 0
+#define DA9150_TID_POLL_MASK (0x07 << 0)
+#define DA9150_RID_CONV_SHIFT 3
+#define DA9150_RID_CONV_MASK (0x01 << 3)
+
+/* DA9150_ADET_RID_PT_CHG_H = 0x15C */
+#define DA9150_RID_PT_CHG_H_SHIFT 0
+#define DA9150_RID_PT_CHG_H_MASK (0xff << 0)
+
+/* DA9150_ADET_RID_PT_CHG_L = 0x15D */
+#define DA9150_RID_PT_CHG_L_SHIFT 6
+#define DA9150_RID_PT_CHG_L_MASK (0x03 << 6)
+
+/* DA9150_PPR_TCTR_B = 0x160 */
+#define DA9150_CHG_TCTR_VAL_SHIFT 0
+#define DA9150_CHG_TCTR_VAL_MASK (0xff << 0)
+
+/* DA9150_PPR_BKCTRL_A = 0x163 */
+#define DA9150_VBUS_MODE_SHIFT 0
+#define DA9150_VBUS_MODE_MASK (0x03 << 0)
+#define DA9150_VBUS_MODE_CHG (0x01 << 0)
+#define DA9150_VBUS_MODE_OTG (0x02 << 0)
+#define DA9150_VBUS_LPM_SHIFT 2
+#define DA9150_VBUS_LPM_MASK (0x03 << 2)
+#define DA9150_VBUS_SUSP_SHIFT 4
+#define DA9150_VBUS_SUSP_MASK (0x01 << 4)
+#define DA9150_VBUS_PWM_SHIFT 5
+#define DA9150_VBUS_PWM_MASK (0x01 << 5)
+#define DA9150_VBUS_ISO_SHIFT 6
+#define DA9150_VBUS_ISO_MASK (0x01 << 6)
+#define DA9150_VBUS_LDO_SHIFT 7
+#define DA9150_VBUS_LDO_MASK (0x01 << 7)
+
+/* DA9150_PPR_BKCFG_A = 0x164 */
+#define DA9150_VBUS_ISET_SHIFT 0
+#define DA9150_VBUS_ISET_MASK (0x1f << 0)
+#define DA9150_VBUS_IMAX_SHIFT 5
+#define DA9150_VBUS_IMAX_MASK (0x01 << 5)
+#define DA9150_VBUS_IOTG_SHIFT 6
+#define DA9150_VBUS_IOTG_MASK (0x03 << 6)
+
+/* DA9150_PPR_BKCFG_B = 0x165 */
+#define DA9150_VBUS_DROP_SHIFT 0
+#define DA9150_VBUS_DROP_MASK (0x0f << 0)
+#define DA9150_VBUS_FAULT_DIS_SHIFT 6
+#define DA9150_VBUS_FAULT_DIS_MASK (0x01 << 6)
+#define DA9150_OTG_FAULT_DIS_SHIFT 7
+#define DA9150_OTG_FAULT_DIS_MASK (0x01 << 7)
+
+/* DA9150_PPR_CHGCTRL_A = 0x166 */
+#define DA9150_CHG_EN_SHIFT 0
+#define DA9150_CHG_EN_MASK (0x01 << 0)
+
+/* DA9150_PPR_CHGCTRL_B = 0x167 */
+#define DA9150_CHG_VBAT_SHIFT 0
+#define DA9150_CHG_VBAT_MASK (0x1f << 0)
+#define DA9150_CHG_VDROP_SHIFT 6
+#define DA9150_CHG_VDROP_MASK (0x03 << 6)
+
+/* DA9150_PPR_CHGCTRL_C = 0x168 */
+#define DA9150_CHG_VFAULT_SHIFT 0
+#define DA9150_CHG_VFAULT_MASK (0x0f << 0)
+#define DA9150_CHG_IPRE_SHIFT 4
+#define DA9150_CHG_IPRE_MASK (0x03 << 4)
+
+/* DA9150_PPR_TCTR_A = 0x169 */
+#define DA9150_CHG_TCTR_SHIFT 0
+#define DA9150_CHG_TCTR_MASK (0x07 << 0)
+#define DA9150_CHG_TCTR_MODE_SHIFT 4
+#define DA9150_CHG_TCTR_MODE_MASK (0x01 << 4)
+
+/* DA9150_PPR_CHGCTRL_D = 0x16A */
+#define DA9150_CHG_IBAT_SHIFT 0
+#define DA9150_CHG_IBAT_MASK (0xff << 0)
+
+/* DA9150_PPR_CHGCTRL_E = 0x16B */
+#define DA9150_CHG_IEND_SHIFT 0
+#define DA9150_CHG_IEND_MASK (0xff << 0)
+
+/* DA9150_PPR_CHGCTRL_F = 0x16C */
+#define DA9150_CHG_VCOLD_SHIFT 0
+#define DA9150_CHG_VCOLD_MASK (0x1f << 0)
+#define DA9150_TBAT_TQA_EN_SHIFT 6
+#define DA9150_TBAT_TQA_EN_MASK (0x01 << 6)
+#define DA9150_TBAT_TDP_EN_SHIFT 7
+#define DA9150_TBAT_TDP_EN_MASK (0x01 << 7)
+
+/* DA9150_PPR_CHGCTRL_G = 0x16D */
+#define DA9150_CHG_VWARM_SHIFT 0
+#define DA9150_CHG_VWARM_MASK (0x1f << 0)
+
+/* DA9150_PPR_CHGCTRL_H = 0x16E */
+#define DA9150_CHG_VHOT_SHIFT 0
+#define DA9150_CHG_VHOT_MASK (0x1f << 0)
+
+/* DA9150_PPR_CHGCTRL_I = 0x16F */
+#define DA9150_CHG_ICOLD_SHIFT 0
+#define DA9150_CHG_ICOLD_MASK (0xff << 0)
+
+/* DA9150_PPR_CHGCTRL_J = 0x170 */
+#define DA9150_CHG_IWARM_SHIFT 0
+#define DA9150_CHG_IWARM_MASK (0xff << 0)
+
+/* DA9150_PPR_CHGCTRL_K = 0x171 */
+#define DA9150_CHG_IHOT_SHIFT 0
+#define DA9150_CHG_IHOT_MASK (0xff << 0)
+
+/* DA9150_PPR_CHGCTRL_L = 0x172 */
+#define DA9150_CHG_IBAT_TRED_SHIFT 0
+#define DA9150_CHG_IBAT_TRED_MASK (0xff << 0)
+
+/* DA9150_PPR_CHGCTRL_M = 0x173 */
+#define DA9150_CHG_VFLOAT_SHIFT 0
+#define DA9150_CHG_VFLOAT_MASK (0x0f << 0)
+#define DA9150_CHG_LPM_SHIFT 5
+#define DA9150_CHG_LPM_MASK (0x01 << 5)
+#define DA9150_CHG_NBLO_SHIFT 6
+#define DA9150_CHG_NBLO_MASK (0x01 << 6)
+#define DA9150_EBS_EN_SHIFT 7
+#define DA9150_EBS_EN_MASK (0x01 << 7)
+
+/* DA9150_PPR_THYST_A = 0x174 */
+#define DA9150_TBAT_T1_SHIFT 0
+#define DA9150_TBAT_T1_MASK (0xff << 0)
+
+/* DA9150_PPR_THYST_B = 0x175 */
+#define DA9150_TBAT_T2_SHIFT 0
+#define DA9150_TBAT_T2_MASK (0xff << 0)
+
+/* DA9150_PPR_THYST_C = 0x176 */
+#define DA9150_TBAT_T3_SHIFT 0
+#define DA9150_TBAT_T3_MASK (0xff << 0)
+
+/* DA9150_PPR_THYST_D = 0x177 */
+#define DA9150_TBAT_T4_SHIFT 0
+#define DA9150_TBAT_T4_MASK (0xff << 0)
+
+/* DA9150_PPR_THYST_E = 0x178 */
+#define DA9150_TBAT_T5_SHIFT 0
+#define DA9150_TBAT_T5_MASK (0xff << 0)
+
+/* DA9150_PPR_THYST_F = 0x179 */
+#define DA9150_TBAT_H1_SHIFT 0
+#define DA9150_TBAT_H1_MASK (0xff << 0)
+
+/* DA9150_PPR_THYST_G = 0x17A */
+#define DA9150_TBAT_H5_SHIFT 0
+#define DA9150_TBAT_H5_MASK (0xff << 0)
+
+/* DA9150_PAGE_CON_3 = 0x180 */
+#define DA9150_PAGE_SHIFT 0
+#define DA9150_PAGE_MASK (0x3f << 0)
+#define DA9150_WRITE_MODE_SHIFT 6
+#define DA9150_WRITE_MODE_MASK (0x01 << 6)
+#define DA9150_REVERT_SHIFT 7
+#define DA9150_REVERT_MASK (0x01 << 7)
+
+/* DA9150_PAGE_CON_4 = 0x200 */
+#define DA9150_PAGE_SHIFT 0
+#define DA9150_PAGE_MASK (0x3f << 0)
+#define DA9150_WRITE_MODE_SHIFT 6
+#define DA9150_WRITE_MODE_MASK (0x01 << 6)
+#define DA9150_REVERT_SHIFT 7
+#define DA9150_REVERT_MASK (0x01 << 7)
+
+/* DA9150_PAGE_CON_5 = 0x280 */
+#define DA9150_PAGE_SHIFT 0
+#define DA9150_PAGE_MASK (0x3f << 0)
+#define DA9150_WRITE_MODE_SHIFT 6
+#define DA9150_WRITE_MODE_MASK (0x01 << 6)
+#define DA9150_REVERT_SHIFT 7
+#define DA9150_REVERT_MASK (0x01 << 7)
+
+/* DA9150_PAGE_CON_6 = 0x300 */
+#define DA9150_PAGE_SHIFT 0
+#define DA9150_PAGE_MASK (0x3f << 0)
+#define DA9150_WRITE_MODE_SHIFT 6
+#define DA9150_WRITE_MODE_MASK (0x01 << 6)
+#define DA9150_REVERT_SHIFT 7
+#define DA9150_REVERT_MASK (0x01 << 7)
+
+/* DA9150_COREBTLD_STAT_A = 0x302 */
+#define DA9150_BOOTLD_STAT_SHIFT 0
+#define DA9150_BOOTLD_STAT_MASK (0x03 << 0)
+#define DA9150_CORE_LOCKUP_SHIFT 2
+#define DA9150_CORE_LOCKUP_MASK (0x01 << 2)
+
+/* DA9150_COREBTLD_CTRL_A = 0x303 */
+#define DA9150_CORE_RESET_SHIFT 0
+#define DA9150_CORE_RESET_MASK (0x01 << 0)
+#define DA9150_CORE_STOP_SHIFT 1
+#define DA9150_CORE_STOP_MASK (0x01 << 1)
+
+/* DA9150_CORE_CONFIG_A = 0x304 */
+#define DA9150_CORE_MEMMUX_SHIFT 0
+#define DA9150_CORE_MEMMUX_MASK (0x03 << 0)
+#define DA9150_WDT_AUTO_START_SHIFT 2
+#define DA9150_WDT_AUTO_START_MASK (0x01 << 2)
+#define DA9150_WDT_AUTO_LOCK_SHIFT 3
+#define DA9150_WDT_AUTO_LOCK_MASK (0x01 << 3)
+#define DA9150_WDT_HLT_NO_CLK_SHIFT 4
+#define DA9150_WDT_HLT_NO_CLK_MASK (0x01 << 4)
+
+/* DA9150_CORE_CONFIG_C = 0x305 */
+#define DA9150_CORE_SW_SIZE_SHIFT 0
+#define DA9150_CORE_SW_SIZE_MASK (0xff << 0)
+
+/* DA9150_CORE_CONFIG_B = 0x306 */
+#define DA9150_BOOTLD_EN_SHIFT 0
+#define DA9150_BOOTLD_EN_MASK (0x01 << 0)
+#define DA9150_CORE_EN_SHIFT 2
+#define DA9150_CORE_EN_MASK (0x01 << 2)
+#define DA9150_CORE_SW_SRC_SHIFT 3
+#define DA9150_CORE_SW_SRC_MASK (0x07 << 3)
+#define DA9150_DEEP_SLEEP_EN_SHIFT 7
+#define DA9150_DEEP_SLEEP_EN_MASK (0x01 << 7)
+
+/* DA9150_CORE_CFG_DATA_A = 0x307 */
+#define DA9150_CORE_CFG_DT_A_SHIFT 0
+#define DA9150_CORE_CFG_DT_A_MASK (0xff << 0)
+
+/* DA9150_CORE_CFG_DATA_B = 0x308 */
+#define DA9150_CORE_CFG_DT_B_SHIFT 0
+#define DA9150_CORE_CFG_DT_B_MASK (0xff << 0)
+
+/* DA9150_CORE_CMD_A = 0x309 */
+#define DA9150_CORE_CMD_SHIFT 0
+#define DA9150_CORE_CMD_MASK (0xff << 0)
+
+/* DA9150_CORE_DATA_A = 0x30A */
+#define DA9150_CORE_DATA_0_SHIFT 0
+#define DA9150_CORE_DATA_0_MASK (0xff << 0)
+
+/* DA9150_CORE_DATA_B = 0x30B */
+#define DA9150_CORE_DATA_1_SHIFT 0
+#define DA9150_CORE_DATA_1_MASK (0xff << 0)
+
+/* DA9150_CORE_DATA_C = 0x30C */
+#define DA9150_CORE_DATA_2_SHIFT 0
+#define DA9150_CORE_DATA_2_MASK (0xff << 0)
+
+/* DA9150_CORE_DATA_D = 0x30D */
+#define DA9150_CORE_DATA_3_SHIFT 0
+#define DA9150_CORE_DATA_3_MASK (0xff << 0)
+
+/* DA9150_CORE2WIRE_STAT_A = 0x310 */
+#define DA9150_FW_FWDL_ERR_SHIFT 7
+#define DA9150_FW_FWDL_ERR_MASK (0x01 << 7)
+
+/* DA9150_CORE2WIRE_CTRL_A = 0x311 */
+#define DA9150_FW_FWDL_EN_SHIFT 0
+#define DA9150_FW_FWDL_EN_MASK (0x01 << 0)
+#define DA9150_FG_QIF_EN_SHIFT 1
+#define DA9150_FG_QIF_EN_MASK (0x01 << 1)
+#define DA9150_CORE_BASE_ADDR_SHIFT 4
+#define DA9150_CORE_BASE_ADDR_MASK (0x0f << 4)
+
+/* DA9150_FW_CTRL_A = 0x312 */
+#define DA9150_FW_SEAL_SHIFT 0
+#define DA9150_FW_SEAL_MASK (0xff << 0)
+
+/* DA9150_FW_CTRL_C = 0x313 */
+#define DA9150_FW_FWDL_CRC_SHIFT 0
+#define DA9150_FW_FWDL_CRC_MASK (0xff << 0)
+
+/* DA9150_FW_CTRL_D = 0x314 */
+#define DA9150_FW_FWDL_BASE_SHIFT 0
+#define DA9150_FW_FWDL_BASE_MASK (0x0f << 0)
+
+/* DA9150_FG_CTRL_A = 0x315 */
+#define DA9150_FG_QIF_CODE_SHIFT 0
+#define DA9150_FG_QIF_CODE_MASK (0xff << 0)
+
+/* DA9150_FG_CTRL_B = 0x316 */
+#define DA9150_FG_QIF_VALUE_SHIFT 0
+#define DA9150_FG_QIF_VALUE_MASK (0xff << 0)
+
+/* DA9150_FW_CTRL_E = 0x317 */
+#define DA9150_FW_FWDL_SEG_SHIFT 0
+#define DA9150_FW_FWDL_SEG_MASK (0xff << 0)
+
+/* DA9150_FW_CTRL_B = 0x318 */
+#define DA9150_FW_FWDL_VALUE_SHIFT 0
+#define DA9150_FW_FWDL_VALUE_MASK (0xff << 0)
+
+/* DA9150_GPADC_CMAN = 0x320 */
+#define DA9150_GPADC_CEN_SHIFT 0
+#define DA9150_GPADC_CEN_MASK (0x01 << 0)
+#define DA9150_GPADC_CMUX_SHIFT 1
+#define DA9150_GPADC_CMUX_MASK (0x1f << 1)
+
+/* DA9150_GPADC_CRES_A = 0x322 */
+#define DA9150_GPADC_CRES_H_SHIFT 0
+#define DA9150_GPADC_CRES_H_MASK (0xff << 0)
+
+/* DA9150_GPADC_CRES_B = 0x323 */
+#define DA9150_GPADC_CRUN_SHIFT 0
+#define DA9150_GPADC_CRUN_MASK (0x01 << 0)
+#define DA9150_GPADC_CRES_L_SHIFT 6
+#define DA9150_GPADC_CRES_L_MASK (0x03 << 6)
+
+/* DA9150_CC_CFG_A = 0x328 */
+#define DA9150_CC_EN_SHIFT 0
+#define DA9150_CC_EN_MASK (0x01 << 0)
+#define DA9150_CC_TIMEBASE_SHIFT 1
+#define DA9150_CC_TIMEBASE_MASK (0x03 << 1)
+#define DA9150_CC_CFG_SHIFT 5
+#define DA9150_CC_CFG_MASK (0x03 << 5)
+#define DA9150_CC_ENDLESS_MODE_SHIFT 7
+#define DA9150_CC_ENDLESS_MODE_MASK (0x01 << 7)
+
+/* DA9150_CC_CFG_B = 0x329 */
+#define DA9150_CC_OPT_SHIFT 0
+#define DA9150_CC_OPT_MASK (0x03 << 0)
+#define DA9150_CC_PREAMP_SHIFT 2
+#define DA9150_CC_PREAMP_MASK (0x03 << 2)
+
+/* DA9150_CC_ICHG_RES_A = 0x32A */
+#define DA9150_CC_ICHG_RES_H_SHIFT 0
+#define DA9150_CC_ICHG_RES_H_MASK (0xff << 0)
+
+/* DA9150_CC_ICHG_RES_B = 0x32B */
+#define DA9150_CC_ICHG_RES_L_SHIFT 3
+#define DA9150_CC_ICHG_RES_L_MASK (0x1f << 3)
+
+/* DA9150_CC_IAVG_RES_A = 0x32C */
+#define DA9150_CC_IAVG_RES_H_SHIFT 0
+#define DA9150_CC_IAVG_RES_H_MASK (0xff << 0)
+
+/* DA9150_CC_IAVG_RES_B = 0x32D */
+#define DA9150_CC_IAVG_RES_L_SHIFT 0
+#define DA9150_CC_IAVG_RES_L_MASK (0xff << 0)
+
+/* DA9150_TAUX_CTRL_A = 0x330 */
+#define DA9150_TAUX_EN_SHIFT 0
+#define DA9150_TAUX_EN_MASK (0x01 << 0)
+#define DA9150_TAUX_MOD_SHIFT 1
+#define DA9150_TAUX_MOD_MASK (0x01 << 1)
+#define DA9150_TAUX_UPDATE_SHIFT 2
+#define DA9150_TAUX_UPDATE_MASK (0x01 << 2)
+
+/* DA9150_TAUX_RELOAD_H = 0x332 */
+#define DA9150_TAUX_RLD_H_SHIFT 0
+#define DA9150_TAUX_RLD_H_MASK (0xff << 0)
+
+/* DA9150_TAUX_RELOAD_L = 0x333 */
+#define DA9150_TAUX_RLD_L_SHIFT 3
+#define DA9150_TAUX_RLD_L_MASK (0x1f << 3)
+
+/* DA9150_TAUX_VALUE_H = 0x334 */
+#define DA9150_TAUX_VAL_H_SHIFT 0
+#define DA9150_TAUX_VAL_H_MASK (0xff << 0)
+
+/* DA9150_TAUX_VALUE_L = 0x335 */
+#define DA9150_TAUX_VAL_L_SHIFT 3
+#define DA9150_TAUX_VAL_L_MASK (0x1f << 3)
+
+/* DA9150_AUX_DATA_0 = 0x338 */
+#define DA9150_AUX_DAT_0_SHIFT 0
+#define DA9150_AUX_DAT_0_MASK (0xff << 0)
+
+/* DA9150_AUX_DATA_1 = 0x339 */
+#define DA9150_AUX_DAT_1_SHIFT 0
+#define DA9150_AUX_DAT_1_MASK (0xff << 0)
+
+/* DA9150_AUX_DATA_2 = 0x33A */
+#define DA9150_AUX_DAT_2_SHIFT 0
+#define DA9150_AUX_DAT_2_MASK (0xff << 0)
+
+/* DA9150_AUX_DATA_3 = 0x33B */
+#define DA9150_AUX_DAT_3_SHIFT 0
+#define DA9150_AUX_DAT_3_MASK (0xff << 0)
+
+/* DA9150_BIF_CTRL = 0x340 */
+#define DA9150_BIF_ISRC_EN_SHIFT 0
+#define DA9150_BIF_ISRC_EN_MASK (0x01 << 0)
+
+/* DA9150_TBAT_CTRL_A = 0x342 */
+#define DA9150_TBAT_EN_SHIFT 0
+#define DA9150_TBAT_EN_MASK (0x01 << 0)
+#define DA9150_TBAT_SW1_SHIFT 1
+#define DA9150_TBAT_SW1_MASK (0x01 << 1)
+#define DA9150_TBAT_SW2_SHIFT 2
+#define DA9150_TBAT_SW2_MASK (0x01 << 2)
+
+/* DA9150_TBAT_CTRL_B = 0x343 */
+#define DA9150_TBAT_SW_FRC_SHIFT 0
+#define DA9150_TBAT_SW_FRC_MASK (0x01 << 0)
+#define DA9150_TBAT_STAT_SW1_SHIFT 1
+#define DA9150_TBAT_STAT_SW1_MASK (0x01 << 1)
+#define DA9150_TBAT_STAT_SW2_SHIFT 2
+#define DA9150_TBAT_STAT_SW2_MASK (0x01 << 2)
+#define DA9150_TBAT_HIGH_CURR_SHIFT 3
+#define DA9150_TBAT_HIGH_CURR_MASK (0x01 << 3)
+
+/* DA9150_TBAT_RES_A = 0x344 */
+#define DA9150_TBAT_RES_H_SHIFT 0
+#define DA9150_TBAT_RES_H_MASK (0xff << 0)
+
+/* DA9150_TBAT_RES_B = 0x345 */
+#define DA9150_TBAT_RES_DIS_SHIFT 0
+#define DA9150_TBAT_RES_DIS_MASK (0x01 << 0)
+#define DA9150_TBAT_RES_L_SHIFT 6
+#define DA9150_TBAT_RES_L_MASK (0x03 << 6)
+
+#endif /* __DA9150_REGISTERS_H */
--
1.9.3
^ permalink raw reply related [flat|nested] 25+ messages in thread* Re: [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device
2014-08-28 10:48 ` [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device Adam Thomson
@ 2014-08-28 11:47 ` Varka Bhadram
2014-09-09 10:32 ` Opensource [Adam Thomson]
2014-08-28 16:36 ` Lee Jones
1 sibling, 1 reply; 25+ messages in thread
From: Varka Bhadram @ 2014-08-28 11:47 UTC (permalink / raw)
To: Adam Thomson, Lee Jones, Samuel Ortiz, Jonathan Cameron,
linux-iio, Sebastian Reichel, Dmitry Eremin-Solenikov,
David Woodhouse, linux-pm, Rob Herring, Pawel Moll, Mark Rutland,
Ian Campbell, Kumar Gala, devicetree, Andrew Morton, Joe Perches
Cc: linux-kernel, support.opensource
On 08/28/2014 04:18 PM, Adam Thomson wrote:
(...)
> +static int da9150_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + struct da9150 *da9150;
> + int ret;
> +
> + da9150 = devm_kzalloc(&client->dev, sizeof(struct da9150), GFP_KERNEL);
> + if (da9150 == NULL)
> + return -ENOMEM;
da9150 = devm_kzalloc(&client->dev, sizeof(*da9150), GFP_KERNEL);
if (!da9150)
return -ENOMEM;
> + da9150->dev = &client->dev;
> + da9150->irq = client->irq;
> + i2c_set_clientdata(client, da9150);
> + dev_set_drvdata(da9150->dev, da9150);
> +
> + da9150->regmap = devm_regmap_init_i2c(client, &da9150_regmap_config);
> + if (IS_ERR(da9150->regmap)) {
> + ret = PTR_ERR(da9150->regmap);
> + dev_err(da9150->dev, "Failed to allocate register map: %d\n",
> + ret);
> + return ret;
> + }
> +
> + return da9150_device_init(da9150);
> +}
> +
> +static int da9150_remove(struct i2c_client *client)
> +{
> + struct da9150 *da9150 = i2c_get_clientdata(client);
> +
> + da9150_device_exit(da9150);
> +
> + return 0;
> +}
> +
> +static void da9150_shutdown(struct i2c_client *client)
> +{
> + struct da9150 *da9150 = i2c_get_clientdata(client);
> +
> + da9150_device_shutdown(da9150);
> +}
> +
> +static const struct i2c_device_id da9150_i2c_id[] = {
> + { "da9150", 0 },
> + { }
> +};
> +MODULE_DEVICE_TABLE(i2c, da9150_i2c_id);
> +
> +static const struct of_device_id da9150_of_match[] = {
> + { .compatible = "dlg,da9150", },
> + { }
> +};
> +
missed MODULE_DEVICE_TABLE(of, ...) ?
> +static struct i2c_driver da9150_driver = {
> + .driver = {
> + .name = "da9150",
> + .owner = THIS_MODULE,
No need to update this field...
> + .of_match_table = of_match_ptr(da9150_of_match),
> + },
> + .probe = da9150_probe,
> + .remove = da9150_remove,
> + .shutdown = da9150_shutdown,
> + .id_table = da9150_i2c_id,
> +};
> +
> +module_i2c_driver(da9150_driver);
> +
> +MODULE_DESCRIPTION("I2C Driver for DA9150");
> +MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com");
> +MODULE_LICENSE("GPL");
>
--
Regards,
Varka Bhadram.
^ permalink raw reply [flat|nested] 25+ messages in thread* RE: [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device
2014-08-28 11:47 ` Varka Bhadram
@ 2014-09-09 10:32 ` Opensource [Adam Thomson]
2014-09-10 9:51 ` Lee Jones
0 siblings, 1 reply; 25+ messages in thread
From: Opensource [Adam Thomson] @ 2014-09-09 10:32 UTC (permalink / raw)
To: Varka Bhadram, Opensource [Adam Thomson], Lee Jones, Samuel Ortiz,
Jonathan Cameron, linux-iio@vger.kernel.org, Sebastian Reichel,
Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm@vger.kernel.org, Rob Herring, Pawel Moll, Mark Rutland,
Ian Campbell, Kumar Gala, devicetree@vger.kernel.org,
Andrew Morton, Joe Perches
Cc: linux-kernel@vger.kernel.org, Support Opensource
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d24JPSBkYTkxNTBfc2h1dGRvd24sDQo+ID4gKwkuaWRfdGFibGUJPSBkYTkxNTBfaTJjX2lkLA0K
PiA+ICt9Ow0KPiA+ICsNCj4gPiArbW9kdWxlX2kyY19kcml2ZXIoZGE5MTUwX2RyaXZlcik7DQo+
ID4gKw0KPiA+ICtNT0RVTEVfREVTQ1JJUFRJT04oIkkyQyBEcml2ZXIgZm9yIERBOTE1MCIpOw0K
PiA+ICtNT0RVTEVfQVVUSE9SKCJBZGFtIFRob21zb24NCj4gPEFkYW0uVGhvbXNvbi5PcGVuc291
cmNlQGRpYXNlbWkuY29tIik7DQo+ID4gK01PRFVMRV9MSUNFTlNFKCJHUEwiKTsNCj4gPg0KPiAt
LQ0KPiBSZWdhcmRzLA0KPiBWYXJrYSBCaGFkcmFtLg0KDQo=
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device
2014-09-09 10:32 ` Opensource [Adam Thomson]
@ 2014-09-10 9:51 ` Lee Jones
0 siblings, 0 replies; 25+ messages in thread
From: Lee Jones @ 2014-09-10 9:51 UTC (permalink / raw)
To: Opensource [Adam Thomson]
Cc: Varka Bhadram, Samuel Ortiz, Jonathan Cameron,
linux-iio@vger.kernel.org, Sebastian Reichel,
Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm@vger.kernel.org, Rob Herring, Pawel Moll, Mark Rutland,
Ian Campbell, Kumar Gala, devicetree@vger.kernel.org,
Andrew Morton, Joe Perches, linux-kernel@vger.kernel.org,
Support Opensource
On Tue, 09 Sep 2014, Opensource [Adam Thomson] wrote:
> On August 28, 2014 12:47, Varka Bhadram wrote:
>
> > On 08/28/2014 04:18 PM, Adam Thomson wrote:
> >
> > (...)
> >
> > > +static int da9150_probe(struct i2c_client *client,
> > > + const struct i2c_device_id *id)
> > > +{
> > > + struct da9150 *da9150;
> > > + int ret;
> > > +
> > > + da9150 = devm_kzalloc(&client->dev, sizeof(struct da9150), GFP_KERNEL);
> > > + if (da9150 == NULL)
> > > + return -ENOMEM;
> >
> > da9150 = devm_kzalloc(&client->dev, sizeof(*da9150), GFP_KERNEL);
> > if (!da9150)
> > return -ENOMEM;
>
> Ok, no real difference, but can change it.
Not functionally, but we like to do things as succinctly as possible.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device
2014-08-28 10:48 ` [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device Adam Thomson
2014-08-28 11:47 ` Varka Bhadram
@ 2014-08-28 16:36 ` Lee Jones
2014-09-09 10:37 ` Opensource [Adam Thomson]
1 sibling, 1 reply; 25+ messages in thread
From: Lee Jones @ 2014-08-28 16:36 UTC (permalink / raw)
To: Adam Thomson
Cc: Samuel Ortiz, Jonathan Cameron, linux-iio, Sebastian Reichel,
Dmitry Eremin-Solenikov, David Woodhouse, linux-pm, Rob Herring,
Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, devicetree,
Andrew Morton, Joe Perches, linux-kernel, support.opensource
On Thu, 28 Aug 2014, Adam Thomson wrote:
> DA9150 is a combined Charger and Fuel-Gauge IC, with additional
> GPIO and GPADC functionality.
>
> Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> ---
> drivers/mfd/Kconfig | 12 +
> drivers/mfd/Makefile | 2 +
> drivers/mfd/da9150-core.c | 332 ++++++++++
> drivers/mfd/da9150-i2c.c | 176 ++++++
Do you also have another, say SPI version?
> include/linux/mfd/da9150/core.h | 80 +++
> include/linux/mfd/da9150/pdata.h | 21 +
> include/linux/mfd/da9150/registers.h | 1153 ++++++++++++++++++++++++++++++++++
> 7 files changed, 1776 insertions(+)
> create mode 100644 drivers/mfd/da9150-core.c
> create mode 100644 drivers/mfd/da9150-i2c.c
> create mode 100644 include/linux/mfd/da9150/core.h
> create mode 100644 include/linux/mfd/da9150/pdata.h
> create mode 100644 include/linux/mfd/da9150/registers.h
>
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index de5abf2..76adb2c 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -183,6 +183,18 @@ config MFD_DA9063
> Additional drivers must be enabled in order to use the functionality
> of the device.
>
> +config MFD_DA9150
> + bool "Dialog Semiconductor DA9150 Charger Fuel-Gauge chip"
Why can't this be built as a module?
> + depends on I2C=y
> + select MFD_CORE
> + select REGMAP_I2C
> + select REGMAP_IRQ
> + help
> + This adds support for the DA9150 integrated charger and fuel-gauge
> + chip. This driver provides common support for accessing the device.
> + Additional drivers must be enabled in order to use the specific
> + features of the device.
> +
> config MFD_MC13XXX
> tristate
> depends on (SPI_MASTER || I2C)
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index f001487..098dfa1 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -114,6 +114,8 @@ obj-$(CONFIG_MFD_DA9055) += da9055.o
> da9063-objs := da9063-core.o da9063-irq.o da9063-i2c.o
> obj-$(CONFIG_MFD_DA9063) += da9063.o
>
> +obj-$(CONFIG_MFD_DA9150) += da9150-core.o da9150-i2c.o
> +
Do the other drivers smell? Please butt up against them.
I'm not entirely sure why there are so many '\n's in the Makefile!
> obj-$(CONFIG_MFD_MAX14577) += max14577.o
> obj-$(CONFIG_MFD_MAX77686) += max77686.o
> obj-$(CONFIG_MFD_MAX77693) += max77693.o
> diff --git a/drivers/mfd/da9150-core.c b/drivers/mfd/da9150-core.c
> new file mode 100644
> index 0000000..029a30b
> --- /dev/null
> +++ b/drivers/mfd/da9150-core.c
> @@ -0,0 +1,332 @@
> +/*
> + * DA9150 Core MFD Driver
> + *
> + * Copyright (c) 2014 Dialog Semiconductor
> + *
> + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/slab.h>
> +#include <linux/irq.h>
> +#include <linux/interrupt.h>
> +#include <linux/mfd/core.h>
> +
No real need for this '\n'.
> +#include <linux/mfd/da9150/core.h>
> +#include <linux/mfd/da9150/registers.h>
> +#include <linux/mfd/da9150/pdata.h>
> +
> +u8 da9150_reg_read(struct da9150 *da9150, u16 reg)
> +{
> + int val, ret;
> +
> + ret = regmap_read(da9150->regmap, reg, &val);
> + if (ret < 0)
What if ret > 0? Is that a good thing? :)
Just 'if (ret)'.
> + dev_err(da9150->dev, "Failed to read from reg 0x%x: %d\n",
> + reg, ret);
> +
> + return (u8) val;
> +}
> +EXPORT_SYMBOL_GPL(da9150_reg_read);
Not sure I like this abstraction stuff. I could understand if there
were locking involved, but there isn't. You don't appear to check for
errors in the subordinate drivers either, rather you just plough on
ahead. Not sure that's a good idea either.
Anyone have a second opinion?
> +int da9150_reg_write(struct da9150 *da9150, u16 reg, u8 val)
> +{
> + int ret;
> +
> + ret = regmap_write(da9150->regmap, reg, val);
> + if (ret < 0)
> + dev_err(da9150->dev, "Failed to write to reg 0x%x: %d\n",
> + reg, ret);
> +
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(da9150_reg_write);
Blah.
> +int da9150_set_bits(struct da9150 *da9150, u16 reg, u8 mask, u8 val)
> +{
> + int ret;
> +
> + ret = regmap_update_bits(da9150->regmap, reg, mask, val);
> + if (ret < 0)
> + dev_err(da9150->dev, "Failed to set bits in reg 0x%x: %d\n",
> + reg, ret);
> +
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(da9150_set_bits);
Blah.
> +int da9150_bulk_read(struct da9150 *da9150, u16 reg, int count, u8 *buf)
> +{
> + int ret;
> +
> + ret = regmap_bulk_read(da9150->regmap, reg, buf, count);
> + if (ret < 0)
> + dev_err(da9150->dev, "Failed to bulk read from reg 0x%x: %d\n",
> + reg, ret);
> +
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(da9150_bulk_read);
Blah.
> +int da9150_bulk_write(struct da9150 *da9150, u16 reg, int count, const u8 *buf)
> +{
> + int ret;
> +
> + ret = regmap_raw_write(da9150->regmap, reg, buf, count);
> + if (ret < 0)
> + dev_err(da9150->dev, "Failed to bulk write to reg 0x%x %d\n",
> + reg, ret);
> +
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(da9150_bulk_write);
Blah.
> +static struct regmap_irq da9150_irqs[] = {
> + [DA9150_IRQ_VBUS] = {
> + .reg_offset = 0,
> + .mask = DA9150_E_VBUS_MASK,
> + },
> + [DA9150_IRQ_CHG] = {
> + .reg_offset = 0,
> + .mask = DA9150_E_CHG_MASK,
> + },
> + [DA9150_IRQ_TCLASS] = {
> + .reg_offset = 0,
> + .mask = DA9150_E_TCLASS_MASK,
> + },
> + [DA9150_IRQ_TJUNC] = {
> + .reg_offset = 0,
> + .mask = DA9150_E_TJUNC_MASK,
> + },
> + [DA9150_IRQ_VFAULT] = {
> + .reg_offset = 0,
> + .mask = DA9150_E_VFAULT_MASK,
> + },
> + [DA9150_IRQ_CONF] = {
> + .reg_offset = 1,
> + .mask = DA9150_E_CONF_MASK,
> + },
> + [DA9150_IRQ_DAT] = {
> + .reg_offset = 1,
> + .mask = DA9150_E_DAT_MASK,
> + },
> + [DA9150_IRQ_DTYPE] = {
> + .reg_offset = 1,
> + .mask = DA9150_E_DTYPE_MASK,
> + },
> + [DA9150_IRQ_ID] = {
> + .reg_offset = 1,
> + .mask = DA9150_E_ID_MASK,
> + },
> + [DA9150_IRQ_ADP] = {
> + .reg_offset = 1,
> + .mask = DA9150_E_ADP_MASK,
> + },
> + [DA9150_IRQ_SESS_END] = {
> + .reg_offset = 1,
> + .mask = DA9150_E_SESS_END_MASK,
> + },
> + [DA9150_IRQ_SESS_VLD] = {
> + .reg_offset = 1,
> + .mask = DA9150_E_SESS_VLD_MASK,
> + },
> + [DA9150_IRQ_FG] = {
> + .reg_offset = 2,
> + .mask = DA9150_E_FG_MASK,
> + },
> + [DA9150_IRQ_GP] = {
> + .reg_offset = 2,
> + .mask = DA9150_E_GP_MASK,
> + },
> + [DA9150_IRQ_TBAT] = {
> + .reg_offset = 2,
> + .mask = DA9150_E_TBAT_MASK,
> + },
> + [DA9150_IRQ_GPIOA] = {
> + .reg_offset = 2,
> + .mask = DA9150_E_GPIOA_MASK,
> + },
> + [DA9150_IRQ_GPIOB] = {
> + .reg_offset = 2,
> + .mask = DA9150_E_GPIOB_MASK,
> + },
> + [DA9150_IRQ_GPIOC] = {
> + .reg_offset = 2,
> + .mask = DA9150_E_GPIOC_MASK,
> + },
> + [DA9150_IRQ_GPIOD] = {
> + .reg_offset = 2,
> + .mask = DA9150_E_GPIOD_MASK,
> + },
> + [DA9150_IRQ_GPADC] = {
> + .reg_offset = 2,
> + .mask = DA9150_E_GPADC_MASK,
> + },
> + [DA9150_IRQ_WKUP] = {
> + .reg_offset = 3,
> + .mask = DA9150_E_WKUP_MASK,
> + },
> +};
> +
> +static struct regmap_irq_chip da9150_regmap_irq_chip = {
> + .name = "da9150_irq",
> + .status_base = DA9150_EVENT_E,
> + .mask_base = DA9150_IRQ_MASK_E,
> + .ack_base = DA9150_EVENT_E,
> + .num_regs = DA9150_NUM_IRQ_REGS,
> + .irqs = da9150_irqs,
> + .num_irqs = ARRAY_SIZE(da9150_irqs),
> +};
> +
> +/* Helper functions for sub-devices to request/free IRQs */
> +int da9150_register_irq(struct platform_device *pdev, void *dev_id,
> + irq_handler_t handler, const char *name)
> +{
> + int irq, ret;
> +
> + irq = platform_get_irq_byname(pdev, name);
> + if (irq < 0)
> + return irq;
> +
> + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, handler,
> + IRQF_ONESHOT, name, dev_id);
> + if (ret)
> + dev_err(&pdev->dev, "Failed to request IRQ %d: %d\n", irq, ret);
> +
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(da9150_register_irq);
Why do they need help? What problem does adding these layers solve?
> +void da9150_release_irq(struct platform_device *pdev, void *dev_id,
> + const char *name)
> +{
> + int irq;
> +
> + irq = platform_get_irq_byname(pdev, name);
> + if (irq < 0)
> + return;
> +
> + devm_free_irq(&pdev->dev, irq, dev_id);
> +}
> +EXPORT_SYMBOL_GPL(da9150_release_irq);
Do you ever release the IRQ and not unbind the driver?
Are there ordering issues at play here?
If not, there's no need to conduct a manual free.
> +static struct resource da9150_gpadc_resources[] = {
> + {
> + .name = "GPADC",
> + .start = DA9150_IRQ_GPADC,
> + .end = DA9150_IRQ_GPADC,
> + .flags = IORESOURCE_IRQ,
> + },
> +};
> +
> +static struct resource da9150_charger_resources[] = {
> + {
> + .name = "CHG_STATUS",
> + .start = DA9150_IRQ_CHG,
> + .end = DA9150_IRQ_CHG,
> + .flags = IORESOURCE_IRQ,
> + },
> + {
> + .name = "CHG_TJUNC",
> + .start = DA9150_IRQ_TJUNC,
> + .end = DA9150_IRQ_TJUNC,
> + .flags = IORESOURCE_IRQ,
> + },
> + {
> + .name = "CHG_VFAULT",
> + .start = DA9150_IRQ_VFAULT,
> + .end = DA9150_IRQ_VFAULT,
> + .flags = IORESOURCE_IRQ,
> + },
> + {
> + .name = "CHG_VBUS",
> + .start = DA9150_IRQ_VBUS,
> + .end = DA9150_IRQ_VBUS,
> + .flags = IORESOURCE_IRQ,
> + },
> +};
> +
> +static struct mfd_cell da9150_devs[] = {
> + {
> + .name = "da9150-gpadc",
> + .of_compatible = "dlg,da9150-gpadc",
> + .resources = da9150_gpadc_resources,
> + .num_resources = ARRAY_SIZE(da9150_gpadc_resources),
> + },
> + {
> + .name = "da9150-charger",
> + .of_compatible = "dlg,da9150-charger",
> + .resources = da9150_charger_resources,
> + .num_resources = ARRAY_SIZE(da9150_charger_resources),
> + },
> +};
> +
> +int da9150_device_init(struct da9150 *da9150)
> +{
> + struct da9150_pdata *pdata = da9150->dev->platform_data;
dev_get_platdata()
> + int ret;
> +
> + /* Handle platform data */
This comment doesn't add anything - the code is clear enough.
> + if (pdata)
> + da9150->irq_base = pdata->irq_base;
> + else
> + da9150->irq_base = -1;
pdata ? pdata->irq_base : -1;
> + /* Init IRQs */
No need for these, please only add comments where the code is complex
or convoluted.
> + ret = regmap_add_irq_chip(da9150->regmap, da9150->irq,
> + IRQF_TRIGGER_LOW | IRQF_ONESHOT,
> + da9150->irq_base, &da9150_regmap_irq_chip,
> + &da9150->regmap_irq_data);
> + if (ret < 0)
'if (ret)' where positive replies aren't possible or are errors.
> + goto err_irq;
Just return here and remove 'err_irq' label.
> + da9150->irq_base = regmap_irq_chip_get_base(da9150->regmap_irq_data);
> +
> + /* Make the IRQ line a wake source */
> + enable_irq_wake(da9150->irq);
> +
> + /* Add MFD Devices */
> + ret = mfd_add_devices(da9150->dev, -1, da9150_devs,
> + ARRAY_SIZE(da9150_devs), NULL,
> + da9150->irq_base, NULL);
> + if (ret < 0) {
> + dev_err(da9150->dev, "Failed to add child devices: %d\n", ret);
> + goto err_mfd;
> + }
> +
> + return 0;
> +
> +err_mfd:
> + regmap_del_irq_chip(da9150->irq, da9150->regmap_irq_data);
> +err_irq:
> + return ret;
> +}
> +
> +void da9150_device_exit(struct da9150 *da9150)
> +{
> + regmap_del_irq_chip(da9150->irq, da9150->regmap_irq_data);
> + mfd_remove_devices(da9150->dev);
> +}
> +
> +void da9150_device_shutdown(struct da9150 *da9150)
> +{
> + /* Make sure we have a wakup source for the device */
> + da9150_set_bits(da9150, DA9150_CONFIG_D,
> + DA9150_WKUP_PM_EN_MASK,
> + DA9150_WKUP_PM_EN_MASK);
> +
> + /* Set device to DISABLED mode */
> + da9150_set_bits(da9150, DA9150_CONTROL_C,
> + DA9150_DISABLE_MASK, DA9150_DISABLE_MASK);
> +}
> +
> +MODULE_DESCRIPTION("MFD Core Driver for DA9150");
> +MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/mfd/da9150-i2c.c b/drivers/mfd/da9150-i2c.c
> new file mode 100644
> index 0000000..a02525c
> --- /dev/null
> +++ b/drivers/mfd/da9150-i2c.c
> @@ -0,0 +1,176 @@
> +/*
> + * DA9150 I2C Driver
> + *
> + * Copyright (c) 2014 Dialog Semiconductor
> + *
> + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/i2c.h>
> +#include <linux/regmap.h>
> +#include <linux/slab.h>
> +
Remove this line.
> +#include <linux/mfd/da9150/core.h>
> +#include <linux/mfd/da9150/registers.h>
> +
> +static bool da9150_volatile_reg(struct device *dev, unsigned int reg)
> +{
> + switch (reg) {
> + case DA9150_PAGE_CON:
> + case DA9150_STATUS_A:
> + case DA9150_STATUS_B:
> + case DA9150_STATUS_C:
> + case DA9150_STATUS_D:
> + case DA9150_STATUS_E:
> + case DA9150_STATUS_F:
> + case DA9150_STATUS_G:
> + case DA9150_STATUS_H:
> + case DA9150_STATUS_I:
> + case DA9150_STATUS_J:
> + case DA9150_STATUS_K:
> + case DA9150_STATUS_L:
> + case DA9150_STATUS_N:
> + case DA9150_FAULT_LOG_A:
> + case DA9150_FAULT_LOG_B:
> + case DA9150_EVENT_E:
> + case DA9150_EVENT_F:
> + case DA9150_EVENT_G:
> + case DA9150_EVENT_H:
> + case DA9150_CONTROL_B:
> + case DA9150_CONTROL_C:
> + case DA9150_GPADC_MAN:
> + case DA9150_GPADC_RES_A:
> + case DA9150_GPADC_RES_B:
> + case DA9150_ADETVB_CFG_C:
> + case DA9150_ADETD_STAT:
> + case DA9150_ADET_CMPSTAT:
> + case DA9150_ADET_CTRL_A:
> + case DA9150_PPR_TCTR_B:
> + case DA9150_COREBTLD_STAT_A:
> + case DA9150_CORE_DATA_A:
> + case DA9150_CORE_DATA_B:
> + case DA9150_CORE_DATA_C:
> + case DA9150_CORE_DATA_D:
> + case DA9150_CORE2WIRE_STAT_A:
> + case DA9150_FW_CTRL_C:
> + case DA9150_FG_CTRL_B:
> + case DA9150_FW_CTRL_B:
> + case DA9150_GPADC_CMAN:
> + case DA9150_GPADC_CRES_A:
> + case DA9150_GPADC_CRES_B:
> + case DA9150_CC_ICHG_RES_A:
> + case DA9150_CC_ICHG_RES_B:
> + case DA9150_CC_IAVG_RES_A:
> + case DA9150_CC_IAVG_RES_B:
> + case DA9150_TAUX_CTRL_A:
> + case DA9150_TAUX_VALUE_H:
> + case DA9150_TAUX_VALUE_L:
> + case DA9150_TBAT_RES_A:
> + case DA9150_TBAT_RES_B:
> + return true;
> + default:
> + return false;
> + }
> +}
> +
> +static const struct regmap_range_cfg da9150_range_cfg[] = {
> + {
> + .range_min = DA9150_PAGE_CON,
> + .range_max = DA9150_TBAT_RES_B,
> + .selector_reg = DA9150_PAGE_CON,
> + .selector_mask = DA9150_I2C_PAGE_MASK,
> + .selector_shift = DA9150_I2C_PAGE_SHIFT,
> + .window_start = 0,
> + .window_len = 256,
> + },
> +};
> +
> +static struct regmap_config da9150_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .ranges = da9150_range_cfg,
> + .num_ranges = ARRAY_SIZE(da9150_range_cfg),
> + .max_register = DA9150_TBAT_RES_B,
> +
> + .cache_type = REGCACHE_RBTREE,
> +
> + .volatile_reg = da9150_volatile_reg,
> +};
> +
> +static int da9150_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + struct da9150 *da9150;
> + int ret;
> +
> + da9150 = devm_kzalloc(&client->dev, sizeof(struct da9150), GFP_KERNEL);
sizeof(*da9150)
> + if (da9150 == NULL)
if (!da9150)
> + return -ENOMEM;
'\n'
> + da9150->dev = &client->dev;
> + da9150->irq = client->irq;
> + i2c_set_clientdata(client, da9150);
> + dev_set_drvdata(da9150->dev, da9150);
Why do you need this in both locations?
> + da9150->regmap = devm_regmap_init_i2c(client, &da9150_regmap_config);
> + if (IS_ERR(da9150->regmap)) {
> + ret = PTR_ERR(da9150->regmap);
> + dev_err(da9150->dev, "Failed to allocate register map: %d\n",
> + ret);
> + return ret;
> + }
> +
> + return da9150_device_init(da9150);
> +}
> +
> +static int da9150_remove(struct i2c_client *client)
> +{
> + struct da9150 *da9150 = i2c_get_clientdata(client);
> +
> + da9150_device_exit(da9150);
> +
> + return 0;
> +}
> +
> +static void da9150_shutdown(struct i2c_client *client)
> +{
> + struct da9150 *da9150 = i2c_get_clientdata(client);
> +
> + da9150_device_shutdown(da9150);
> +}
> +
> +static const struct i2c_device_id da9150_i2c_id[] = {
> + { "da9150", 0 },
I don't see the .id parameter being used, just leave it blank.
> + { }
> +};
> +MODULE_DEVICE_TABLE(i2c, da9150_i2c_id);
> +
> +static const struct of_device_id da9150_of_match[] = {
> + { .compatible = "dlg,da9150", },
> + { }
> +};
MODULE_DEVICE_TABLE(of, ...)
> +static struct i2c_driver da9150_driver = {
> + .driver = {
> + .name = "da9150",
> + .owner = THIS_MODULE,
You can remove this line, it's taken care of for you elsewhere.
> + .of_match_table = of_match_ptr(da9150_of_match),
> + },
> + .probe = da9150_probe,
> + .remove = da9150_remove,
> + .shutdown = da9150_shutdown,
> + .id_table = da9150_i2c_id,
> +};
> +
> +module_i2c_driver(da9150_driver);
> +
> +MODULE_DESCRIPTION("I2C Driver for DA9150");
> +MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com");
> +MODULE_LICENSE("GPL");
> diff --git a/include/linux/mfd/da9150/core.h b/include/linux/mfd/da9150/core.h
> new file mode 100644
> index 0000000..d23c500
> --- /dev/null
> +++ b/include/linux/mfd/da9150/core.h
> @@ -0,0 +1,80 @@
> +/*
> + * DA9150 MFD Driver - Core Data
> + *
> + * Copyright (c) 2014 Dialog Semiconductor
> + *
> + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#ifndef __DA9150_CORE_H
> +#define __DA9150_CORE_H
> +
> +#include <linux/device.h>
> +#include <linux/i2c.h>
What's this used for?
> +#include <linux/interrupt.h>
> +#include <linux/regmap.h>
> +#include <linux/mutex.h>
> +
> +/* I2C address paging */
> +#define DA9150_REG_PAGE_SHIFT 8
> +#define DA9150_REG_PAGE_MASK 0xFF
> +
> +/* IRQs */
> +#define DA9150_NUM_IRQ_REGS 4
> +#define DA9150_IRQ_VBUS 0
> +#define DA9150_IRQ_CHG 1
> +#define DA9150_IRQ_TCLASS 2
> +#define DA9150_IRQ_TJUNC 3
> +#define DA9150_IRQ_VFAULT 4
> +#define DA9150_IRQ_CONF 5
> +#define DA9150_IRQ_DAT 6
> +#define DA9150_IRQ_DTYPE 7
> +#define DA9150_IRQ_ID 8
> +#define DA9150_IRQ_ADP 9
> +#define DA9150_IRQ_SESS_END 10
> +#define DA9150_IRQ_SESS_VLD 11
> +#define DA9150_IRQ_FG 12
> +#define DA9150_IRQ_GP 13
> +#define DA9150_IRQ_TBAT 14
> +#define DA9150_IRQ_GPIOA 15
> +#define DA9150_IRQ_GPIOB 16
> +#define DA9150_IRQ_GPIOC 17
> +#define DA9150_IRQ_GPIOD 18
> +#define DA9150_IRQ_GPADC 19
> +#define DA9150_IRQ_WKUP 20
> +
> +struct da9150 {
> + struct device *dev;
> +
> + struct regmap *regmap;
> +
Why the '\n's?
> + struct regmap_irq_chip_data *regmap_irq_data;
> + int irq;
> + int irq_base;
> +};
> +
> +/* Device I/O */
> +u8 da9150_reg_read(struct da9150 *da9150, u16 reg);
> +int da9150_reg_write(struct da9150 *da9150, u16 reg, u8 val);
> +int da9150_set_bits(struct da9150 *da9150, u16 reg, u8 mask, u8 val);
> +
> +int da9150_bulk_read(struct da9150 *da9150, u16 reg, int count, u8 *buf);
> +int da9150_bulk_write(struct da9150 *da9150, u16 reg, int count, const u8 *buf);
> +
> +/* IRQ helper functions */
> +int da9150_register_irq(struct platform_device *pdev, void *dev_id,
> + irq_handler_t handler, const char *name);
> +void da9150_release_irq(struct platform_device *pdev, void *dev_id,
> + const char *name);
I'm not sure why any of these 7 functions are required.
> +/* Init/Exit */
> +int da9150_device_init(struct da9150 *da9150);
> +void da9150_device_exit(struct da9150 *da9150);
> +void da9150_device_shutdown(struct da9150 *da9150);
> +
> +#endif /* __DA9150_CORE_H */
> diff --git a/include/linux/mfd/da9150/pdata.h b/include/linux/mfd/da9150/pdata.h
> new file mode 100644
> index 0000000..e2b37f1
> --- /dev/null
> +++ b/include/linux/mfd/da9150/pdata.h
> @@ -0,0 +1,21 @@
> +/*
> + * DA9150 MFD Driver - Platform Data
> + *
> + * Copyright (c) 2014 Dialog Semiconductor
> + *
> + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#ifndef __DA9150_PDATA_H
> +#define __DA9150_PDATA_H
> +
> +struct da9150_pdata {
> + int irq_base;
> +};
Just put this in core.h and do away witht this header file.
> +#endif /* __DA9150_PDATA_H */
> diff --git a/include/linux/mfd/da9150/registers.h b/include/linux/mfd/da9150/registers.h
> new file mode 100644
> index 0000000..ef4826d
> --- /dev/null
> +++ b/include/linux/mfd/da9150/registers.h
> @@ -0,0 +1,1153 @@
> +/*
> + * DA9150 MFD Driver - Registers
> + *
> + * Copyright (c) 2014 Dialog Semiconductor
> + *
> + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#ifndef __DA9150_REGISTERS_H
> +#define __DA9150_REGISTERS_H
> +
> +/* Registers */
[...]
> +/* DA9150_CONTROL_A = 0x0E5 */
> +#define DA9150_VDD33_SL_SHIFT 0
> +#define DA9150_VDD33_SL_MASK (0x01 << 0)
> +#define DA9150_VDD33_LPM_SHIFT 1
> +#define DA9150_VDD33_LPM_MASK (0x03 << 1)
> +#define DA9150_VDD33_EN_SHIFT 3
> +#define DA9150_VDD33_EN_MASK (0x01 << 3)
> +#define DA9150_GPI_LPM_SHIFT 6
> +#define DA9150_GPI_LPM_MASK (0x01 << 6)
> +#define DA9150_PM_IF_LPM_SHIFT 7
> +#define DA9150_PM_IF_LPM_MASK (0x01 << 7)
> +
> +/* DA9150_CONTROL_B = 0x0E6 */
> +#define DA9150_LPM_SHIFT 0
> +#define DA9150_LPM_MASK (0x01 << 0)
> +#define DA9150_RESET_SHIFT 1
> +#define DA9150_RESET_MASK (0x01 << 1)
> +#define DA9150_RESET_USRCONF_EN_SHIFT 2
> +#define DA9150_RESET_USRCONF_EN_MASK (0x01 << 2)
> +
> +/* DA9150_CONTROL_C = 0x0E7 */
> +#define DA9150_DISABLE_SHIFT 0
> +#define DA9150_DISABLE_MASK (0x01 << 0)
Use BIT() for all of these (1 << X) macros.
[...]
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 25+ messages in thread* RE: [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device
2014-08-28 16:36 ` Lee Jones
@ 2014-09-09 10:37 ` Opensource [Adam Thomson]
2014-09-10 9:49 ` Lee Jones
0 siblings, 1 reply; 25+ messages in thread
From: Opensource [Adam Thomson] @ 2014-09-09 10:37 UTC (permalink / raw)
To: Lee Jones, Opensource [Adam Thomson]
Cc: Samuel Ortiz, Jonathan Cameron, linux-iio@vger.kernel.org,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm@vger.kernel.org, Rob Herring, Pawel Moll, Mark Rutland,
Ian Campbell, Kumar Gala, devicetree@vger.kernel.org,
Andrew Morton, Joe Perches, linux-kernel@vger.kernel.org,
Support Opensource
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^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device
2014-09-09 10:37 ` Opensource [Adam Thomson]
@ 2014-09-10 9:49 ` Lee Jones
2014-09-10 15:58 ` Opensource [Adam Thomson]
0 siblings, 1 reply; 25+ messages in thread
From: Lee Jones @ 2014-09-10 9:49 UTC (permalink / raw)
To: Opensource [Adam Thomson]
Cc: Samuel Ortiz, Jonathan Cameron, linux-iio@vger.kernel.org,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm@vger.kernel.org, Rob Herring, Pawel Moll, Mark Rutland,
Ian Campbell, Kumar Gala, devicetree@vger.kernel.org,
Andrew Morton, Joe Perches, linux-kernel@vger.kernel.org,
Support Opensource
On Tue, 09 Sep 2014, Opensource [Adam Thomson] wrote:
> On August 28, 2014 17:36, Lee Jones wrote:
>
> Thanks for the feedback. As a general comment a couple of the items you've
> identified relate to future updates (additional functionality being added).
> I already have code in place for this but have stripped out a couple of the
> drivers just to reduce the churn and size of patch submission. These will be
> added once these patches have been accepted.
>
> Where this is the case, I have added notes in-line against the relevant
> comments you made.
>
> > On Thu, 28 Aug 2014, Adam Thomson wrote:
> >
> > > DA9150 is a combined Charger and Fuel-Gauge IC, with additional
> > > GPIO and GPADC functionality.
> > >
> > > Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> > > ---
> > > drivers/mfd/Kconfig | 12 +
> > > drivers/mfd/Makefile | 2 +
> > > drivers/mfd/da9150-core.c | 332 ++++++++++
> > > drivers/mfd/da9150-i2c.c | 176 ++++++
> >
> > Do you also have another, say SPI version?
>
> No, not yet, but this is something that we may add later as the device does
> support SPI.
I'm not sure we want to split up the files like this for an 'if we
decide to produce an SPI variant in the future'. If you do, then you
can split the files up. Until then, stick everything in -core.
> > > include/linux/mfd/da9150/core.h | 80 +++
> > > include/linux/mfd/da9150/pdata.h | 21 +
> > > include/linux/mfd/da9150/registers.h | 1153
> > ++++++++++++++++++++++++++++++++++
> > > 7 files changed, 1776 insertions(+)
> > > create mode 100644 drivers/mfd/da9150-core.c
> > > create mode 100644 drivers/mfd/da9150-i2c.c
> > > create mode 100644 include/linux/mfd/da9150/core.h
> > > create mode 100644 include/linux/mfd/da9150/pdata.h
> > > create mode 100644 include/linux/mfd/da9150/registers.h
> > >
> > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> > > index de5abf2..76adb2c 100644
> > > --- a/drivers/mfd/Kconfig
> > > +++ b/drivers/mfd/Kconfig
> > > @@ -183,6 +183,18 @@ config MFD_DA9063
> > > Additional drivers must be enabled in order to use the functionality
> > > of the device.
> > >
> > > +config MFD_DA9150
> > > + bool "Dialog Semiconductor DA9150 Charger Fuel-Gauge chip"
> >
> > Why can't this be built as a module?
>
> No reason. Will change it.
>
> >
> > > + depends on I2C=y
> > > + select MFD_CORE
> > > + select REGMAP_I2C
> > > + select REGMAP_IRQ
> > > + help
> > > + This adds support for the DA9150 integrated charger and fuel-gauge
> > > + chip. This driver provides common support for accessing the device.
> > > + Additional drivers must be enabled in order to use the specific
> > > + features of the device.
> > > +
> > > config MFD_MC13XXX
> > > tristate
> > > depends on (SPI_MASTER || I2C)
> > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> > > index f001487..098dfa1 100644
> > > --- a/drivers/mfd/Makefile
> > > +++ b/drivers/mfd/Makefile
> > > @@ -114,6 +114,8 @@ obj-$(CONFIG_MFD_DA9055) += da9055.o
> > > da9063-objs := da9063-core.o da9063-irq.o da9063-i2c.o
> > > obj-$(CONFIG_MFD_DA9063) += da9063.o
> > >
> > > +obj-$(CONFIG_MFD_DA9150) += da9150-core.o da9150-i2c.o
> > > +
> >
> > Do the other drivers smell? Please butt up against them.
> >
> > I'm not entirely sure why there are so many '\n's in the Makefile!
>
> Okey dokey. Will change.
>
> >
> > > obj-$(CONFIG_MFD_MAX14577) += max14577.o
> > > obj-$(CONFIG_MFD_MAX77686) += max77686.o
> > > obj-$(CONFIG_MFD_MAX77693) += max77693.o
> > > diff --git a/drivers/mfd/da9150-core.c b/drivers/mfd/da9150-core.c
> > > new file mode 100644
> > > index 0000000..029a30b
> > > --- /dev/null
> > > +++ b/drivers/mfd/da9150-core.c
> > > @@ -0,0 +1,332 @@
> > > +/*
> > > + * DA9150 Core MFD Driver
> > > + *
> > > + * Copyright (c) 2014 Dialog Semiconductor
> > > + *
> > > + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> > > + *
> > > + * This program is free software; you can redistribute it and/or modify it
> > > + * under the terms of the GNU General Public License as published by the
> > > + * Free Software Foundation; either version 2 of the License, or (at your
> > > + * option) any later version.
> > > + */
> > > +
> > > +#include <linux/kernel.h>
> > > +#include <linux/module.h>
> > > +#include <linux/platform_device.h>
> > > +#include <linux/slab.h>
> > > +#include <linux/irq.h>
> > > +#include <linux/interrupt.h>
> > > +#include <linux/mfd/core.h>
> > > +
> >
> > No real need for this '\n'.
>
> I can change this, but my reason was to separate common kernel includes from
> device specific ones, for readability.
It isn't any less readable with the '\n' removed.
> > > +#include <linux/mfd/da9150/core.h>
> > > +#include <linux/mfd/da9150/registers.h>
> > > +#include <linux/mfd/da9150/pdata.h>
> > > +
> > > +u8 da9150_reg_read(struct da9150 *da9150, u16 reg)
> > > +{
> > > + int val, ret;
> > > +
> > > + ret = regmap_read(da9150->regmap, reg, &val);
> > > + if (ret < 0)
> >
> > What if ret > 0? Is that a good thing? :)
> >
> > Just 'if (ret)'.
>
> Fine, will change.
>
> >
> > > + dev_err(da9150->dev, "Failed to read from reg 0x%x: %d\n",
> > > + reg, ret);
> > > +
> > > + return (u8) val;
> > > +}
> > > +EXPORT_SYMBOL_GPL(da9150_reg_read);
> >
> > Not sure I like this abstraction stuff. I could understand if there
> > were locking involved, but there isn't. You don't appear to check for
> > errors in the subordinate drivers either, rather you just plough on
> > ahead. Not sure that's a good idea either.
> >
> > Anyone have a second opinion?
>
> The reason for these is because future patches to add additional functionality
> will introduce I2C access functions which do not use regmap and access the
> device via a separate I2C address for this purpose. I will need to provide
> access functions for that, and so having a common style of I2C access makes
> sense for this driver. Means any access just needs to provide the MFD private
> data, and the relevant functions take care of the rest. I think this is cleaner
> in this instance.
So long as these appear soon. Otherwise it's just cruft.
[...]
> > > +/* Helper functions for sub-devices to request/free IRQs */
> > > +int da9150_register_irq(struct platform_device *pdev, void *dev_id,
> > > + irq_handler_t handler, const char *name)
> > > +{
> > > + int irq, ret;
> > > +
> > > + irq = platform_get_irq_byname(pdev, name);
> > > + if (irq < 0)
> > > + return irq;
> > > +
> > > + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, handler,
> > > + IRQF_ONESHOT, name, dev_id);
> > > + if (ret)
> > > + dev_err(&pdev->dev, "Failed to request IRQ %d: %d\n", irq, ret);
> > > +
> > > + return ret;
> > > +}
> > > +EXPORT_SYMBOL_GPL(da9150_register_irq);
> >
> > Why do they need help? What problem does adding these layers solve?
>
> Means I don't have to keep adding print error lines everywhere else if this
> function takes care of it. Thought that would be cleaner.
You only need to request each IRQ once. It's just more abstraction
for the sake of it. I would prefer if you removed them.
> > > +void da9150_release_irq(struct platform_device *pdev, void *dev_id,
> > > + const char *name)
> > > +{
> > > + int irq;
> > > +
> > > + irq = platform_get_irq_byname(pdev, name);
> > > + if (irq < 0)
> > > + return;
> > > +
> > > + devm_free_irq(&pdev->dev, irq, dev_id);
> > > +}
> > > +EXPORT_SYMBOL_GPL(da9150_release_irq);
> >
> > Do you ever release the IRQ and not unbind the driver?
> >
> > Are there ordering issues at play here?
> >
> > If not, there's no need to conduct a manual free.
>
> In the charger driver, in the remove function there is a need I believe to
> free the IRQs before other items are cleared up (e.g. power_supply classes),
> so this is why I have added this in here.
Can you handle this separately in the Charger driver then please?
[...]
> > > + if (pdata)
> > > + da9150->irq_base = pdata->irq_base;
> > > + else
> > > + da9150->irq_base = -1;
> >
> > pdata ? pdata->irq_base : -1;
>
> This is left this way as later updates to add additional functionality will
> require addtional work to be done with the platform data. Seemed pointless
> changing it here just to change it back later.
You're not changing anything, as this is the introduction of the code.
I can't tell you how many times I've heard "I will change it later",
or "doing it this way will support subsequent submissions", then
received no more patches. It's okay to do it nicely now and expand
it back out in the new patches.
[...]
> > > + da9150 = devm_kzalloc(&client->dev, sizeof(struct da9150), GFP_KERNEL);
> >
> > sizeof(*da9150)
>
> Same difference, but ok.
It's more succinct and almost always done this way because of it.
[...]
> > > +struct da9150_pdata {
> > > + int irq_base;
> > > +};
> >
> > Just put this in core.h and do away witht this header file.
>
> The reason for this is that I will add more platform data items later with
> subsequent submissions for additional features. It felt cleaner to separate out
> these structures than throw it in the core.h header. However if it's going to
> be a problem I'll fold this into core.h
More "I will"s. :)
Please do what's right for 'this submission'. If things change later
you can act accordingly.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 25+ messages in thread* RE: [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device
2014-09-10 9:49 ` Lee Jones
@ 2014-09-10 15:58 ` Opensource [Adam Thomson]
2014-09-15 22:39 ` Lee Jones
0 siblings, 1 reply; 25+ messages in thread
From: Opensource [Adam Thomson] @ 2014-09-10 15:58 UTC (permalink / raw)
To: Lee Jones, Opensource [Adam Thomson]
Cc: Samuel Ortiz, Jonathan Cameron, linux-iio@vger.kernel.org,
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linux-pm@vger.kernel.org, Rob Herring, Pawel Moll, Mark Rutland,
Ian Campbell, Kumar Gala, devicetree@vger.kernel.org,
Andrew Morton, Joe Perches, linux-kernel@vger.kernel.org,
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^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device
2014-09-10 15:58 ` Opensource [Adam Thomson]
@ 2014-09-15 22:39 ` Lee Jones
2014-09-16 10:50 ` Opensource [Adam Thomson]
0 siblings, 1 reply; 25+ messages in thread
From: Lee Jones @ 2014-09-15 22:39 UTC (permalink / raw)
To: Opensource [Adam Thomson]
Cc: Samuel Ortiz, Jonathan Cameron, linux-iio@vger.kernel.org,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm@vger.kernel.org, Rob Herring, Pawel Moll, Mark Rutland,
Ian Campbell, Kumar Gala, devicetree@vger.kernel.org,
Andrew Morton, Joe Perches, linux-kernel@vger.kernel.org,
Support Opensource
On Wed, 10 Sep 2014, Opensource [Adam Thomson] wrote:
> On September 10, 2014 10:50, Lee Jones wrote:
> > On Tue, 09 Sep 2014, Opensource [Adam Thomson] wrote:
> >
> > > On August 28, 2014 17:36, Lee Jones wrote:
> > >
> > > Thanks for the feedback. As a general comment a couple of the items you've
> > > identified relate to future updates (additional functionality being added).
> > > I already have code in place for this but have stripped out a couple of the
> > > drivers just to reduce the churn and size of patch submission. These will be
> > > added once these patches have been accepted.
> > >
> > > Where this is the case, I have added notes in-line against the relevant
> > > comments you made.
> > >
> > > > On Thu, 28 Aug 2014, Adam Thomson wrote:
> > > >
> > > > > DA9150 is a combined Charger and Fuel-Gauge IC, with additional
> > > > > GPIO and GPADC functionality.
> > > > >
> > > > > Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> > > > > ---
> > > > > drivers/mfd/Kconfig | 12 +
> > > > > drivers/mfd/Makefile | 2 +
> > > > > drivers/mfd/da9150-core.c | 332 ++++++++++
> > > > > drivers/mfd/da9150-i2c.c | 176 ++++++
[...]
> > > > > +/* Helper functions for sub-devices to request/free IRQs */
> > > > > +int da9150_register_irq(struct platform_device *pdev, void *dev_id,
> > > > > + irq_handler_t handler, const char *name)
> > > > > +{
> > > > > + int irq, ret;
> > > > > +
> > > > > + irq = platform_get_irq_byname(pdev, name);
> > > > > + if (irq < 0)
> > > > > + return irq;
> > > > > +
> > > > > + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, handler,
> > > > > + IRQF_ONESHOT, name, dev_id);
> > > > > + if (ret)
> > > > > + dev_err(&pdev->dev, "Failed to request IRQ %d: %d\n", irq, ret);
> > > > > +
> > > > > + return ret;
> > > > > +}
> > > > > +EXPORT_SYMBOL_GPL(da9150_register_irq);
> > > >
> > > > Why do they need help? What problem does adding these layers solve?
> > >
> > > Means I don't have to keep adding print error lines everywhere else if this
> > > function takes care of it. Thought that would be cleaner.
> >
> > You only need to request each IRQ once. It's just more abstraction
> > for the sake of it. I would prefer if you removed them.
>
> Yes, but in the charger driver for example, there are 4 IRQs to request. If
> I don't use this approach the IRQ requesting becomes bloated, hence why I went
> for a common function like this. Thought generally the intention was to cut
> down on repeated code?
If you're worried about bloat in .probe() it's okay to define a new
function within the charger driver; however, creating a call-back into
the MFD driver like this I think it over-kill for 4 requests.
> > > > > +void da9150_release_irq(struct platform_device *pdev, void *dev_id,
> > > > > + const char *name)
> > > > > +{
> > > > > + int irq;
> > > > > +
> > > > > + irq = platform_get_irq_byname(pdev, name);
> > > > > + if (irq < 0)
> > > > > + return;
> > > > > +
> > > > > + devm_free_irq(&pdev->dev, irq, dev_id);
> > > > > +}
> > > > > +EXPORT_SYMBOL_GPL(da9150_release_irq);
> > > >
> > > > Do you ever release the IRQ and not unbind the driver?
> > > >
> > > > Are there ordering issues at play here?
> > > >
> > > > If not, there's no need to conduct a manual free.
> > >
> > > In the charger driver, in the remove function there is a need I believe to
> > > free the IRQs before other items are cleared up (e.g. power_supply classes),
> > > so this is why I have added this in here.
> >
> > Can you handle this separately in the Charger driver then please?
> >
> > [...]
>
> If I have to remove the IRQ register function, then yes, otherwise it makes more
> sense to have the pair of functions in the MFD core I would say.
I would prefer you to remove the call-back please.
> > > > > + if (pdata)
> > > > > + da9150->irq_base = pdata->irq_base;
> > > > > + else
> > > > > + da9150->irq_base = -1;
> > > >
> > > > pdata ? pdata->irq_base : -1;
> > >
> > > This is left this way as later updates to add additional functionality will
> > > require addtional work to be done with the platform data. Seemed pointless
> > > changing it here just to change it back later.
> >
> > You're not changing anything, as this is the introduction of the code.
> > I can't tell you how many times I've heard "I will change it later",
> > or "doing it this way will support subsequent submissions", then
> > received no more patches. It's okay to do it nicely now and expand
> > it back out in the new patches.
> >
> > [...]
>
> It appears that way to you but I have to modify my code for sumbission as the
> local code I have covers all functionality. Am having to refactor again and
> again just to suit this initial submission, and then I have to revert it back
> again when submitting the last couple of drivers. Time consuming, and quite
> frustrating when the intention was to make the whole process easier. Anyway,
> will update for now and revert in subsequent patches.
I sincerely hope the refactorings won't add too much effort, but it's
difficult to have one rule for the masses and different ones for
others.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 25+ messages in thread* RE: [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device
2014-09-15 22:39 ` Lee Jones
@ 2014-09-16 10:50 ` Opensource [Adam Thomson]
2014-09-16 22:07 ` Lee Jones
0 siblings, 1 reply; 25+ messages in thread
From: Opensource [Adam Thomson] @ 2014-09-16 10:50 UTC (permalink / raw)
To: Lee Jones, Opensource [Adam Thomson]
Cc: Samuel Ortiz, Jonathan Cameron, linux-iio@vger.kernel.org,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm@vger.kernel.org, Rob Herring, Pawel Moll, Mark Rutland,
Ian Campbell, Kumar Gala, devicetree@vger.kernel.org,
Andrew Morton, Joe Perches, linux-kernel@vger.kernel.org,
Support Opensource
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^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device
2014-09-16 10:50 ` Opensource [Adam Thomson]
@ 2014-09-16 22:07 ` Lee Jones
0 siblings, 0 replies; 25+ messages in thread
From: Lee Jones @ 2014-09-16 22:07 UTC (permalink / raw)
To: Opensource [Adam Thomson]
Cc: Samuel Ortiz, Jonathan Cameron, linux-iio@vger.kernel.org,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm@vger.kernel.org, Rob Herring, Pawel Moll, Mark Rutland,
Ian Campbell, Kumar Gala, devicetree@vger.kernel.org,
Andrew Morton, Joe Perches, linux-kernel@vger.kernel.org,
Support Opensource
On Tue, 16 Sep 2014, Opensource [Adam Thomson] wrote:
> On September 15, 2014 23:39, Lee Jones wrote:
>
> > On Wed, 10 Sep 2014, Opensource [Adam Thomson] wrote:
> > > On September 10, 2014 10:50, Lee Jones wrote:
> > > > On Tue, 09 Sep 2014, Opensource [Adam Thomson] wrote:
> > > >
> > > > > On August 28, 2014 17:36, Lee Jones wrote:
> > > > >
> > > > > Thanks for the feedback. As a general comment a couple of the items you've
> > > > > identified relate to future updates (additional functionality being added).
> > > > > I already have code in place for this but have stripped out a couple of the
> > > > > drivers just to reduce the churn and size of patch submission. These will be
> > > > > added once these patches have been accepted.
> > > > >
> > > > > Where this is the case, I have added notes in-line against the relevant
> > > > > comments you made.
> > > > >
> > > > > > On Thu, 28 Aug 2014, Adam Thomson wrote:
> > > > > >
> > > > > > > DA9150 is a combined Charger and Fuel-Gauge IC, with additional
> > > > > > > GPIO and GPADC functionality.
> > > > > > >
> > > > > > > Signed-off-by: Adam Thomson
> > <Adam.Thomson.Opensource@diasemi.com>
> > > > > > > ---
> > > > > > > drivers/mfd/Kconfig | 12 +
> > > > > > > drivers/mfd/Makefile | 2 +
> > > > > > > drivers/mfd/da9150-core.c | 332 ++++++++++
> > > > > > > drivers/mfd/da9150-i2c.c | 176 ++++++
> >
> > [...]
> >
> > > > > > > +/* Helper functions for sub-devices to request/free IRQs */
> > > > > > > +int da9150_register_irq(struct platform_device *pdev, void *dev_id,
> > > > > > > + irq_handler_t handler, const char *name)
> > > > > > > +{
> > > > > > > + int irq, ret;
> > > > > > > +
> > > > > > > + irq = platform_get_irq_byname(pdev, name);
> > > > > > > + if (irq < 0)
> > > > > > > + return irq;
> > > > > > > +
> > > > > > > + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, handler,
> > > > > > > + IRQF_ONESHOT, name, dev_id);
> > > > > > > + if (ret)
> > > > > > > + dev_err(&pdev->dev, "Failed to request IRQ %d: %d\n", irq,
> > ret);
> > > > > > > +
> > > > > > > + return ret;
> > > > > > > +}
> > > > > > > +EXPORT_SYMBOL_GPL(da9150_register_irq);
> > > > > >
> > > > > > Why do they need help? What problem does adding these layers solve?
> > > > >
> > > > > Means I don't have to keep adding print error lines everywhere else if this
> > > > > function takes care of it. Thought that would be cleaner.
> > > >
> > > > You only need to request each IRQ once. It's just more abstraction
> > > > for the sake of it. I would prefer if you removed them.
> > >
> > > Yes, but in the charger driver for example, there are 4 IRQs to request. If
> > > I don't use this approach the IRQ requesting becomes bloated, hence why I went
> > > for a common function like this. Thought generally the intention was to cut
> > > down on repeated code?
> >
> > If you're worried about bloat in .probe() it's okay to define a new
> > function within the charger driver; however, creating a call-back into
> > the MFD driver like this I think it over-kill for 4 requests.
>
> I could do something just in the charger, but why not have something which can
> be used for all sub-devices? There is also an IRQ used in the IIO ADC driver and
> there will be another in the later fuel-gauge driver too. Doesn't make sense to
> me not to do in the MFD code when that will provide a simple common call for all
> sub-devices. What is your concern with adding something like this, just so I'm
> clear?
I guess my last response wasn't as descriptive as it could have been.
I don't think that any helper function is required at all. No need to
abstract/obfuscate how the IRQ is obtained and registered. What I
meant by 'do it in the charger driver' was, copy and paste all of the
platform_get_irq_byname() and devm_request_threaded_irq() calls from
.probe() into a separate function, but only if you are worried about a
bloated .probe(). Personally I'd just leave them in there.
Bottom line is; I don't feel there is a necessity for any helper
function here. I think it adds unnecessary complexity for the sake of
saving a few lines of code.
If you still think there is a requirement for it, perhaps a more
system-wide devm_request_threaded_irq_byname() is in order instead?
> > > > > > > +void da9150_release_irq(struct platform_device *pdev, void *dev_id,
> > > > > > > + const char *name)
> > > > > > > +{
> > > > > > > + int irq;
> > > > > > > +
> > > > > > > + irq = platform_get_irq_byname(pdev, name);
> > > > > > > + if (irq < 0)
> > > > > > > + return;
> > > > > > > +
> > > > > > > + devm_free_irq(&pdev->dev, irq, dev_id);
> > > > > > > +}
> > > > > > > +EXPORT_SYMBOL_GPL(da9150_release_irq);
> > > > > >
> > > > > > Do you ever release the IRQ and not unbind the driver?
> > > > > >
> > > > > > Are there ordering issues at play here?
> > > > > >
> > > > > > If not, there's no need to conduct a manual free.
> > > > >
> > > > > In the charger driver, in the remove function there is a need I believe to
> > > > > free the IRQs before other items are cleared up (e.g. power_supply classes),
> > > > > so this is why I have added this in here.
> > > >
> > > > Can you handle this separately in the Charger driver then please?
> > > >
> > > > [...]
> > >
> > > If I have to remove the IRQ register function, then yes, otherwise it makes more
> > > sense to have the pair of functions in the MFD core I would say.
> >
> > I would prefer you to remove the call-back please.
>
> Right.
>
> >
> > > > > > > + if (pdata)
> > > > > > > + da9150->irq_base = pdata->irq_base;
> > > > > > > + else
> > > > > > > + da9150->irq_base = -1;
> > > > > >
> > > > > > pdata ? pdata->irq_base : -1;
> > > > >
> > > > > This is left this way as later updates to add additional functionality will
> > > > > require addtional work to be done with the platform data. Seemed pointless
> > > > > changing it here just to change it back later.
> > > >
> > > > You're not changing anything, as this is the introduction of the code.
> > > > I can't tell you how many times I've heard "I will change it later",
> > > > or "doing it this way will support subsequent submissions", then
> > > > received no more patches. It's okay to do it nicely now and expand
> > > > it back out in the new patches.
> > > >
> > > > [...]
> > >
> > > It appears that way to you but I have to modify my code for sumbission as the
> > > local code I have covers all functionality. Am having to refactor again and
> > > again just to suit this initial submission, and then I have to revert it back
> > > again when submitting the last couple of drivers. Time consuming, and quite
> > > frustrating when the intention was to make the whole process easier. Anyway,
> > > will update for now and revert in subsequent patches.
> >
> > I sincerely hope the refactorings won't add too much effort, but it's
> > difficult to have one rule for the masses and different ones for
> > others.
>
> I do understand that, and that's fair enough. Is just frustrating when you're
> trying to do a proper job. Anyway, am sure I'll live. :)
I know how you feel, as I've been on the receiving end of such rules
more than once, but you could have probably re-factored twice in the
time it's taken us to have this conversation. :)
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 25+ messages in thread
* [PATCH v2 2/7] mfd: da9150: Add DT binding documentation for core
2014-08-28 10:48 [PATCH v2 0/7] Add initial support for DA9150 Charger & Fuel-Gauge IC Adam Thomson
2014-08-28 10:48 ` [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device Adam Thomson
@ 2014-08-28 10:48 ` Adam Thomson
2014-08-28 10:48 ` [PATCH v2 3/7] iio: Add support for DA9150 GPADC Adam Thomson
` (4 subsequent siblings)
6 siblings, 0 replies; 25+ messages in thread
From: Adam Thomson @ 2014-08-28 10:48 UTC (permalink / raw)
To: Lee Jones, Samuel Ortiz, Jonathan Cameron, linux-iio,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala, devicetree, Andrew Morton, Joe Perches
Cc: linux-kernel, support.opensource
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
Documentation/devicetree/bindings/mfd/da9150.txt | 41 ++++++++++++++++++++++++
1 file changed, 41 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/da9150.txt
diff --git a/Documentation/devicetree/bindings/mfd/da9150.txt b/Documentation/devicetree/bindings/mfd/da9150.txt
new file mode 100644
index 0000000..d7de150
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/da9150.txt
@@ -0,0 +1,41 @@
+Dialog Semiconductor DA9150 Combined Charger/Fuel-Gauge MFD bindings
+
+DA9150 consists of a group of sub-devices (I2C Only):
+
+Device Description
+------ -----------
+da9150-gpadc : IIO - GPADC
+da9150-charger : Power Supply (Charger)
+
+======
+
+Required properties:
+- compatible : Should be "dlg,da9150"
+- reg: Specifies the I2C slave address
+- interrupt-parent: Specifies the phandle of the interrupt controller to which
+ the IRQs from da9150 are delivered to.
+- interrupts: IRQ line info for da9150 chip.
+- interrupt-controller: da9150 has internal IRQs (own IRQ domain).
+
+Sub-devices:
+- da9150-gpadc: See Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt
+- da9150-charger: See Documentation/devicetree/bindings/power/da9150-charger.txt
+
+
+Example:
+
+ charger_fg: da9150@58 {
+ compatible = "dlg,da9150";
+ reg = <0x58>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+
+ gpadc: da9150-gpadc {
+ ...
+ };
+
+ da9150-charger {
+ ...
+ };
+ };
--
1.9.3
^ permalink raw reply related [flat|nested] 25+ messages in thread* [PATCH v2 3/7] iio: Add support for DA9150 GPADC
2014-08-28 10:48 [PATCH v2 0/7] Add initial support for DA9150 Charger & Fuel-Gauge IC Adam Thomson
2014-08-28 10:48 ` [PATCH v2 1/7] mfd: Add support for DA9150 combined charger & fuel-gauge device Adam Thomson
2014-08-28 10:48 ` [PATCH v2 2/7] mfd: da9150: Add DT binding documentation for core Adam Thomson
@ 2014-08-28 10:48 ` Adam Thomson
2014-08-28 11:28 ` Peter Meerwald
2014-08-28 10:49 ` [PATCH v2 4/7] iio: da9150: Add DT binding documentation for GPADC Adam Thomson
` (3 subsequent siblings)
6 siblings, 1 reply; 25+ messages in thread
From: Adam Thomson @ 2014-08-28 10:48 UTC (permalink / raw)
To: Lee Jones, Samuel Ortiz, Jonathan Cameron, linux-iio,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala, devicetree, Andrew Morton, Joe Perches
Cc: linux-kernel, support.opensource
This patch adds support for DA9150 Charger & Fuel-Gauge IC GPADC.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/iio/adc/Kconfig | 9 +
drivers/iio/adc/Makefile | 1 +
drivers/iio/adc/da9150-gpadc.c | 430 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 440 insertions(+)
create mode 100644 drivers/iio/adc/da9150-gpadc.c
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 11b048a..8041347 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -127,6 +127,15 @@ config AT91_ADC
help
Say yes here to build support for Atmel AT91 ADC.
+config DA9150_GPADC
+ tristate "Dialog DA9150 GPADC driver support"
+ depends on MFD_DA9150
+ help
+ Say yes here to build support for Dialog DA9150 GPADC.
+
+ This driver can also be built as a module. If chosen, the module name
+ will be da9150-gpadc.
+
config EXYNOS_ADC
tristate "Exynos ADC driver support"
depends on ARCH_EXYNOS || (OF && COMPILE_TEST)
diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
index ad81b51..48413d2 100644
--- a/drivers/iio/adc/Makefile
+++ b/drivers/iio/adc/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_AD7793) += ad7793.o
obj-$(CONFIG_AD7887) += ad7887.o
obj-$(CONFIG_AD799X) += ad799x.o
obj-$(CONFIG_AT91_ADC) += at91_adc.o
+obj-$(CONFIG_DA9150_GPADC) += da9150-gpadc.o
obj-$(CONFIG_EXYNOS_ADC) += exynos_adc.o
obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o
obj-$(CONFIG_MAX1027) += max1027.o
diff --git a/drivers/iio/adc/da9150-gpadc.c b/drivers/iio/adc/da9150-gpadc.c
new file mode 100644
index 0000000..21a21a9
--- /dev/null
+++ b/drivers/iio/adc/da9150-gpadc.c
@@ -0,0 +1,430 @@
+/*
+ * DA9150 GPADC Driver
+ *
+ * Copyright (c) 2014 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+
+#include <linux/mfd/da9150/core.h>
+#include <linux/mfd/da9150/pdata.h>
+#include <linux/mfd/da9150/registers.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/machine.h>
+#include <linux/iio/driver.h>
+
+
+/* Channels */
+enum da9150_gpadc_hw_channel {
+ DA9150_GPADC_HW_CHAN_GPIOA_2V = 0,
+ DA9150_GPADC_HW_CHAN_GPIOA_2V_,
+ DA9150_GPADC_HW_CHAN_GPIOB_2V,
+ DA9150_GPADC_HW_CHAN_GPIOB_2V_,
+ DA9150_GPADC_HW_CHAN_GPIOC_2V,
+ DA9150_GPADC_HW_CHAN_GPIOC_2V_,
+ DA9150_GPADC_HW_CHAN_GPIOD_2V,
+ DA9150_GPADC_HW_CHAN_GPIOD_2V_,
+ DA9150_GPADC_HW_CHAN_IBUS_SENSE,
+ DA9150_GPADC_HW_CHAN_IBUS_SENSE_,
+ DA9150_GPADC_HW_CHAN_VBUS_DIV,
+ DA9150_GPADC_HW_CHAN_VBUS_DIV_,
+ DA9150_GPADC_HW_CHAN_ID,
+ DA9150_GPADC_HW_CHAN_ID_,
+ DA9150_GPADC_HW_CHAN_VSYS,
+ DA9150_GPADC_HW_CHAN_VSYS_,
+ DA9150_GPADC_HW_CHAN_GPIOA_5V,
+ DA9150_GPADC_HW_CHAN_GPIOA_5V_,
+ DA9150_GPADC_HW_CHAN_GPIOB_5V,
+ DA9150_GPADC_HW_CHAN_GPIOB_5V_,
+ DA9150_GPADC_HW_CHAN_GPIOC_5V,
+ DA9150_GPADC_HW_CHAN_GPIOC_5V_,
+ DA9150_GPADC_HW_CHAN_GPIOD_5V,
+ DA9150_GPADC_HW_CHAN_GPIOD_5V_,
+ DA9150_GPADC_HW_CHAN_VBAT,
+ DA9150_GPADC_HW_CHAN_VBAT_,
+ DA9150_GPADC_HW_CHAN_TBAT,
+ DA9150_GPADC_HW_CHAN_TBAT_,
+ DA9150_GPADC_HW_CHAN_TJUNC_CORE,
+ DA9150_GPADC_HW_CHAN_TJUNC_CORE_,
+ DA9150_GPADC_HW_CHAN_TJUNC_OVP,
+ DA9150_GPADC_HW_CHAN_TJUNC_OVP_,
+};
+
+enum da9150_gpadc_channel {
+ DA9150_GPADC_CHAN_GPIOA = 0,
+ DA9150_GPADC_CHAN_GPIOB,
+ DA9150_GPADC_CHAN_GPIOC,
+ DA9150_GPADC_CHAN_GPIOD,
+ DA9150_GPADC_CHAN_IBUS,
+ DA9150_GPADC_CHAN_VBUS,
+ DA9150_GPADC_CHAN_ID,
+ DA9150_GPADC_CHAN_VSYS,
+ DA9150_GPADC_CHAN_VBAT,
+ DA9150_GPADC_CHAN_TBAT,
+ DA9150_GPADC_CHAN_TJUNC_CORE,
+ DA9150_GPADC_CHAN_TJUNC_OVP,
+};
+
+/* Private data */
+struct da9150_gpadc {
+ struct da9150 *da9150;
+ struct device *dev;
+
+ struct mutex lock;
+ struct completion complete;
+};
+
+
+static irqreturn_t da9150_gpadc_irq(int irq, void *data)
+{
+
+ struct da9150_gpadc *gpadc = data;
+
+ complete(&gpadc->complete);
+
+ return IRQ_HANDLED;
+}
+
+int da9150_gpadc_read_adc(struct da9150_gpadc *gpadc, int hw_chan)
+{
+ u8 result_regs[2];
+ int result;
+
+ mutex_lock(&gpadc->lock);
+
+ /* Set channel & enable measurement */
+ da9150_reg_write(gpadc->da9150, DA9150_GPADC_MAN,
+ (DA9150_GPADC_EN_MASK |
+ hw_chan << DA9150_GPADC_MUX_SHIFT));
+
+ /* Consume left-over completion from a previous timeout */
+ try_wait_for_completion(&gpadc->complete);
+
+ /* Check for actual completion */
+ wait_for_completion_timeout(&gpadc->complete, msecs_to_jiffies(5));
+
+ /* Read result and status from device */
+ da9150_bulk_read(gpadc->da9150, DA9150_GPADC_RES_A, 2, result_regs);
+
+ mutex_unlock(&gpadc->lock);
+
+ /* Check to make sure device really has completed reading */
+ if (result_regs[1] & DA9150_GPADC_RUN_MASK) {
+ dev_err(gpadc->dev, "Timeout on channel %d of GP-ADC\n",
+ hw_chan);
+ return -ETIMEDOUT;
+ }
+
+ /* LSBs - 2 bits */
+ result = (result_regs[1] & DA9150_GPADC_RES_L_MASK) >>
+ DA9150_GPADC_RES_L_SHIFT;
+ /* MSBs - 8 bits */
+ result |= result_regs[0] << DA9150_GPADC_RES_L_BITS;
+
+ return result;
+}
+
+static inline int da9150_gpadc_gpio_5v_voltage_now(int raw_val)
+{
+ /* Convert to uV */
+ return (((6 * ((raw_val * 1000) + 500)) / 1024) * 1000);
+}
+
+static inline int da9150_gpadc_ibus_current_avg(int raw_val)
+{
+ /* Convert to uA */
+ return (((4 * ((raw_val * 1000) + 500)) / 2048) * 1000);
+}
+
+static inline int da9150_gpadc_vbus_21v_voltage_now(int raw_val)
+{
+ /* Convert to uV */
+ return (((21 * ((raw_val * 1000) + 500)) / 1024) * 1000);
+}
+
+static inline int da9150_gpadc_vsys_6v_voltage_now(int raw_val)
+{
+ /* Convert to uV */
+ return (((3 * ((raw_val * 1000) + 500)) / 512) * 1000);
+}
+
+static inline int da9150_gpadc_tjunc_temp(int raw_val)
+{
+ /* Convert to 0.1 degrees C */
+ return (((879 - (1023 - raw_val)) * 10000) / 4420);
+}
+
+static inline int da9150_gpadc_vbat_voltage_now(int raw_val)
+{
+ /* Convert to uV */
+ return ((2932 * raw_val) + 1500000);
+}
+
+int da9150_gpadc_read_processed(struct da9150_gpadc *gpadc, int channel,
+ int hw_chan)
+{
+ int raw_val, ret;
+
+ raw_val = da9150_gpadc_read_adc(gpadc, hw_chan);
+ if (raw_val < 0)
+ return raw_val;
+
+ switch (channel) {
+ case DA9150_GPADC_CHAN_GPIOA:
+ case DA9150_GPADC_CHAN_GPIOB:
+ case DA9150_GPADC_CHAN_GPIOC:
+ case DA9150_GPADC_CHAN_GPIOD:
+ ret = da9150_gpadc_gpio_5v_voltage_now(raw_val);
+ break;
+ case DA9150_GPADC_CHAN_IBUS:
+ ret = da9150_gpadc_ibus_current_avg(raw_val);
+ break;
+ case DA9150_GPADC_CHAN_VBUS:
+ ret = da9150_gpadc_vbus_21v_voltage_now(raw_val);
+ break;
+ case DA9150_GPADC_CHAN_VSYS:
+ ret = da9150_gpadc_vsys_6v_voltage_now(raw_val);
+ break;
+ case DA9150_GPADC_CHAN_TJUNC_CORE:
+ case DA9150_GPADC_CHAN_TJUNC_OVP:
+ ret = da9150_gpadc_tjunc_temp(raw_val);
+ break;
+ default:
+ /* No processing for other channels so return raw value */
+ ret = raw_val;
+ break;
+ }
+
+ return ret;
+}
+
+int da9150_gpadc_read_scale(int channel)
+{
+ int ret;
+
+ switch (channel) {
+ case DA9150_GPADC_CHAN_VBAT:
+ ret = 2932;
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+int da9150_gpadc_read_offset(int channel)
+{
+ int ret;
+
+ switch (channel) {
+ case DA9150_GPADC_CHAN_VBAT:
+ ret = 1500000 / 2932;
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+int da9150_gpadc_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2, long mask)
+{
+ struct da9150_gpadc *gpadc = iio_priv(indio_dev);
+ int ret;
+
+ if ((chan->channel < DA9150_GPADC_CHAN_GPIOA) ||
+ (chan->channel > DA9150_GPADC_CHAN_TJUNC_OVP))
+ return -EINVAL;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ case IIO_CHAN_INFO_PROCESSED:
+ ret = da9150_gpadc_read_processed(gpadc, chan->channel,
+ chan->address);
+ break;
+ case IIO_CHAN_INFO_SCALE:
+ ret = da9150_gpadc_read_scale(chan->channel);
+ break;
+ case IIO_CHAN_INFO_OFFSET:
+ ret = da9150_gpadc_read_offset(chan->channel);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ if (ret < 0)
+ return ret;
+
+ *val = ret;
+
+ return IIO_VAL_INT;
+}
+
+static const struct iio_info da9150_gpadc_info = {
+ .read_raw = &da9150_gpadc_read_raw,
+ .driver_module = THIS_MODULE,
+};
+
+#define GPADC_CHANNEL(_id, _hw_id, _type, chan_info, _ext_name) { \
+ .type = _type, \
+ .indexed = 1, \
+ .channel = DA9150_GPADC_CHAN_##_id, \
+ .address = DA9150_GPADC_HW_CHAN_##_hw_id, \
+ .info_mask_separate = chan_info, \
+ .extend_name = _ext_name, \
+ .datasheet_name = #_id, \
+}
+
+#define GPADC_CHANNEL_RAW(_id, _hw_id, _type, _ext_name) \
+ GPADC_CHANNEL(_id, _hw_id, _type, BIT(IIO_CHAN_INFO_RAW), _ext_name)
+
+#define GPADC_CHANNEL_SCALED(_id, _hw_id, _type, _ext_name) \
+ GPADC_CHANNEL(_id, _hw_id, _type, \
+ BIT(IIO_CHAN_INFO_RAW) | \
+ BIT(IIO_CHAN_INFO_SCALE) | \
+ BIT(IIO_CHAN_INFO_OFFSET), \
+ _ext_name)
+
+#define GPADC_CHANNEL_PROCESSED(_id, _hw_id, _type, _ext_name) \
+ GPADC_CHANNEL(_id, _hw_id, _type, BIT(IIO_CHAN_INFO_PROCESSED), \
+ _ext_name)
+
+/* Supported channels */
+static const struct iio_chan_spec da9150_gpadc_channels[] = {
+ GPADC_CHANNEL_PROCESSED(GPIOA, GPIOA_5V, IIO_VOLTAGE, "GPIOA"),
+ GPADC_CHANNEL_PROCESSED(GPIOB, GPIOB_5V, IIO_VOLTAGE, "GPIOB"),
+ GPADC_CHANNEL_PROCESSED(GPIOC, GPIOC_5V, IIO_VOLTAGE, "GPIOC"),
+ GPADC_CHANNEL_PROCESSED(GPIOD, GPIOD_5V, IIO_VOLTAGE, "GPIOD"),
+ GPADC_CHANNEL_PROCESSED(IBUS, IBUS_SENSE, IIO_CURRENT, "IBUS"),
+ GPADC_CHANNEL_PROCESSED(VBUS, VBUS_DIV_, IIO_VOLTAGE, "VBUS"),
+ GPADC_CHANNEL_RAW(ID, ID, IIO_VOLTAGE, "ID"),
+ GPADC_CHANNEL_PROCESSED(VSYS, VSYS, IIO_VOLTAGE, "VSYS"),
+ GPADC_CHANNEL_SCALED(VBAT, VBAT, IIO_VOLTAGE, "VBAT"),
+ GPADC_CHANNEL_RAW(TBAT, TBAT, IIO_VOLTAGE, "TBAT"),
+ GPADC_CHANNEL_PROCESSED(TJUNC_CORE, TJUNC_CORE, IIO_TEMP, "TJUNC_CORE"),
+ GPADC_CHANNEL_PROCESSED(TJUNC_OVP, TJUNC_OVP, IIO_TEMP, "TJUNC_OVP"),
+};
+
+/* Default maps used by da9150-charger */
+static struct iio_map da9150_gpadc_default_maps[] = {
+ {
+ .consumer_dev_name = "da9150-charger",
+ .consumer_channel = "CHAN_IBUS",
+ .adc_channel_label = "IBUS",
+ },
+ {
+ .consumer_dev_name = "da9150-charger",
+ .consumer_channel = "CHAN_VBUS",
+ .adc_channel_label = "VBUS",
+ },
+ {
+ .consumer_dev_name = "da9150-charger",
+ .consumer_channel = "CHAN_TJUNC",
+ .adc_channel_label = "TJUNC_CORE",
+ },
+ {
+ .consumer_dev_name = "da9150-charger",
+ .consumer_channel = "CHAN_VBAT",
+ .adc_channel_label = "VBAT",
+ },
+ {},
+};
+
+static int da9150_gpadc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct da9150 *da9150 = dev_get_drvdata(dev->parent);
+ struct da9150_gpadc *gpadc;
+ struct iio_dev *indio_dev;
+ int ret;
+
+ indio_dev = devm_iio_device_alloc(&pdev->dev,
+ sizeof(struct da9150_gpadc));
+ if (!indio_dev) {
+ dev_err(&pdev->dev, "Failed to allocate IIO device\n");
+ return -ENOMEM;
+ }
+ gpadc = iio_priv(indio_dev);
+
+ platform_set_drvdata(pdev, indio_dev);
+ gpadc->da9150 = da9150;
+ gpadc->dev = dev;
+
+ ret = iio_map_array_register(indio_dev, da9150_gpadc_default_maps);
+ if (ret) {
+ dev_err(dev, "Failed to register IIO maps: %d\n", ret);
+ goto iio_map_fail;
+ }
+
+ mutex_init(&gpadc->lock);
+ init_completion(&gpadc->complete);
+
+ /* Register IRQ */
+ ret = da9150_register_irq(pdev, gpadc, da9150_gpadc_irq, "GPADC");
+ if (ret < 0)
+ goto irq_fail;
+
+ indio_dev->name = dev_name(dev);
+ indio_dev->dev.parent = dev;
+ indio_dev->dev.of_node = pdev->dev.of_node;
+ indio_dev->info = &da9150_gpadc_info;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->channels = da9150_gpadc_channels;
+ indio_dev->num_channels = ARRAY_SIZE(da9150_gpadc_channels);
+
+ ret = iio_device_register(indio_dev);
+ if (ret) {
+ dev_err(dev, "Failed to register IIO device: %d\n", ret);
+ goto iio_dev_fail;
+ }
+
+ return ret;
+
+iio_dev_fail:
+irq_fail:
+ iio_map_array_unregister(indio_dev);
+
+iio_map_fail:
+ return ret;
+}
+
+static int da9150_gpadc_remove(struct platform_device *pdev)
+{
+ struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+
+ iio_map_array_unregister(indio_dev);
+ iio_device_unregister(indio_dev);
+
+ return 0;
+}
+
+static struct platform_driver da9150_gpadc_driver = {
+ .driver = {
+ .name = "da9150-gpadc",
+ .owner = THIS_MODULE,
+ },
+ .probe = da9150_gpadc_probe,
+ .remove = da9150_gpadc_remove,
+};
+
+module_platform_driver(da9150_gpadc_driver);
+
+MODULE_DESCRIPTION("GPADC Driver for DA9150");
+MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com");
+MODULE_LICENSE("GPL");
--
1.9.3
^ permalink raw reply related [flat|nested] 25+ messages in thread* Re: [PATCH v2 3/7] iio: Add support for DA9150 GPADC
2014-08-28 10:48 ` [PATCH v2 3/7] iio: Add support for DA9150 GPADC Adam Thomson
@ 2014-08-28 11:28 ` Peter Meerwald
2014-08-30 20:01 ` Jonathan Cameron
2014-09-09 10:51 ` Opensource [Adam Thomson]
0 siblings, 2 replies; 25+ messages in thread
From: Peter Meerwald @ 2014-08-28 11:28 UTC (permalink / raw)
To: Adam Thomson; +Cc: Lee Jones, Jonathan Cameron, linux-iio, support.opensource
some minor comments inline
> This patch adds support for DA9150 Charger & Fuel-Gauge IC GPADC.
>
> Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> ---
> drivers/iio/adc/Kconfig | 9 +
> drivers/iio/adc/Makefile | 1 +
> drivers/iio/adc/da9150-gpadc.c | 430 +++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 440 insertions(+)
> create mode 100644 drivers/iio/adc/da9150-gpadc.c
>
> diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
> index 11b048a..8041347 100644
> --- a/drivers/iio/adc/Kconfig
> +++ b/drivers/iio/adc/Kconfig
> @@ -127,6 +127,15 @@ config AT91_ADC
> help
> Say yes here to build support for Atmel AT91 ADC.
>
> +config DA9150_GPADC
> + tristate "Dialog DA9150 GPADC driver support"
> + depends on MFD_DA9150
> + help
> + Say yes here to build support for Dialog DA9150 GPADC.
> +
> + This driver can also be built as a module. If chosen, the module name
> + will be da9150-gpadc.
> +
> config EXYNOS_ADC
> tristate "Exynos ADC driver support"
> depends on ARCH_EXYNOS || (OF && COMPILE_TEST)
> diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
> index ad81b51..48413d2 100644
> --- a/drivers/iio/adc/Makefile
> +++ b/drivers/iio/adc/Makefile
> @@ -14,6 +14,7 @@ obj-$(CONFIG_AD7793) += ad7793.o
> obj-$(CONFIG_AD7887) += ad7887.o
> obj-$(CONFIG_AD799X) += ad799x.o
> obj-$(CONFIG_AT91_ADC) += at91_adc.o
> +obj-$(CONFIG_DA9150_GPADC) += da9150-gpadc.o
> obj-$(CONFIG_EXYNOS_ADC) += exynos_adc.o
> obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o
> obj-$(CONFIG_MAX1027) += max1027.o
> diff --git a/drivers/iio/adc/da9150-gpadc.c b/drivers/iio/adc/da9150-gpadc.c
> new file mode 100644
> index 0000000..21a21a9
> --- /dev/null
> +++ b/drivers/iio/adc/da9150-gpadc.c
> @@ -0,0 +1,430 @@
> +/*
> + * DA9150 GPADC Driver
> + *
> + * Copyright (c) 2014 Dialog Semiconductor
> + *
> + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/slab.h>
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/interrupt.h>
> +
> +#include <linux/mfd/da9150/core.h>
> +#include <linux/mfd/da9150/pdata.h>
> +#include <linux/mfd/da9150/registers.h>
> +
> +#include <linux/iio/iio.h>
> +#include <linux/iio/machine.h>
> +#include <linux/iio/driver.h>
> +
> +
> +/* Channels */
> +enum da9150_gpadc_hw_channel {
> + DA9150_GPADC_HW_CHAN_GPIOA_2V = 0,
> + DA9150_GPADC_HW_CHAN_GPIOA_2V_,
why the underscore_ notation?
couldn't you use e.g. DA9150_GPADC_HW_CHAN_GPIOB_2V = 2?
> + DA9150_GPADC_HW_CHAN_GPIOB_2V,
> + DA9150_GPADC_HW_CHAN_GPIOB_2V_,
> + DA9150_GPADC_HW_CHAN_GPIOC_2V,
> + DA9150_GPADC_HW_CHAN_GPIOC_2V_,
> + DA9150_GPADC_HW_CHAN_GPIOD_2V,
> + DA9150_GPADC_HW_CHAN_GPIOD_2V_,
> + DA9150_GPADC_HW_CHAN_IBUS_SENSE,
> + DA9150_GPADC_HW_CHAN_IBUS_SENSE_,
> + DA9150_GPADC_HW_CHAN_VBUS_DIV,
> + DA9150_GPADC_HW_CHAN_VBUS_DIV_,
> + DA9150_GPADC_HW_CHAN_ID,
> + DA9150_GPADC_HW_CHAN_ID_,
> + DA9150_GPADC_HW_CHAN_VSYS,
> + DA9150_GPADC_HW_CHAN_VSYS_,
> + DA9150_GPADC_HW_CHAN_GPIOA_5V,
> + DA9150_GPADC_HW_CHAN_GPIOA_5V_,
> + DA9150_GPADC_HW_CHAN_GPIOB_5V,
> + DA9150_GPADC_HW_CHAN_GPIOB_5V_,
> + DA9150_GPADC_HW_CHAN_GPIOC_5V,
> + DA9150_GPADC_HW_CHAN_GPIOC_5V_,
> + DA9150_GPADC_HW_CHAN_GPIOD_5V,
> + DA9150_GPADC_HW_CHAN_GPIOD_5V_,
> + DA9150_GPADC_HW_CHAN_VBAT,
> + DA9150_GPADC_HW_CHAN_VBAT_,
> + DA9150_GPADC_HW_CHAN_TBAT,
> + DA9150_GPADC_HW_CHAN_TBAT_,
> + DA9150_GPADC_HW_CHAN_TJUNC_CORE,
> + DA9150_GPADC_HW_CHAN_TJUNC_CORE_,
> + DA9150_GPADC_HW_CHAN_TJUNC_OVP,
> + DA9150_GPADC_HW_CHAN_TJUNC_OVP_,
> +};
> +
> +enum da9150_gpadc_channel {
> + DA9150_GPADC_CHAN_GPIOA = 0,
> + DA9150_GPADC_CHAN_GPIOB,
> + DA9150_GPADC_CHAN_GPIOC,
> + DA9150_GPADC_CHAN_GPIOD,
> + DA9150_GPADC_CHAN_IBUS,
> + DA9150_GPADC_CHAN_VBUS,
> + DA9150_GPADC_CHAN_ID,
> + DA9150_GPADC_CHAN_VSYS,
> + DA9150_GPADC_CHAN_VBAT,
> + DA9150_GPADC_CHAN_TBAT,
> + DA9150_GPADC_CHAN_TJUNC_CORE,
> + DA9150_GPADC_CHAN_TJUNC_OVP,
> +};
> +
> +/* Private data */
> +struct da9150_gpadc {
> + struct da9150 *da9150;
> + struct device *dev;
> +
> + struct mutex lock;
> + struct completion complete;
> +};
> +
> +
> +static irqreturn_t da9150_gpadc_irq(int irq, void *data)
> +{
> +
> + struct da9150_gpadc *gpadc = data;
> +
> + complete(&gpadc->complete);
> +
> + return IRQ_HANDLED;
> +}
> +
> +int da9150_gpadc_read_adc(struct da9150_gpadc *gpadc, int hw_chan)
static?
> +{
> + u8 result_regs[2];
> + int result;
> +
> + mutex_lock(&gpadc->lock);
> +
> + /* Set channel & enable measurement */
> + da9150_reg_write(gpadc->da9150, DA9150_GPADC_MAN,
> + (DA9150_GPADC_EN_MASK |
> + hw_chan << DA9150_GPADC_MUX_SHIFT));
> +
> + /* Consume left-over completion from a previous timeout */
> + try_wait_for_completion(&gpadc->complete);
> +
> + /* Check for actual completion */
> + wait_for_completion_timeout(&gpadc->complete, msecs_to_jiffies(5));
> +
> + /* Read result and status from device */
> + da9150_bulk_read(gpadc->da9150, DA9150_GPADC_RES_A, 2, result_regs);
> +
> + mutex_unlock(&gpadc->lock);
> +
> + /* Check to make sure device really has completed reading */
> + if (result_regs[1] & DA9150_GPADC_RUN_MASK) {
> + dev_err(gpadc->dev, "Timeout on channel %d of GP-ADC\n",
GPADC everywhere else
> + hw_chan);
> + return -ETIMEDOUT;
> + }
> +
> + /* LSBs - 2 bits */
> + result = (result_regs[1] & DA9150_GPADC_RES_L_MASK) >>
> + DA9150_GPADC_RES_L_SHIFT;
> + /* MSBs - 8 bits */
> + result |= result_regs[0] << DA9150_GPADC_RES_L_BITS;
can't the read be done with a 16bit read?
> +
> + return result;
> +}
> +
> +static inline int da9150_gpadc_gpio_5v_voltage_now(int raw_val)
> +{
> + /* Convert to uV */
> + return (((6 * ((raw_val * 1000) + 500)) / 1024) * 1000);
outer parenthesis not needed, here and below
> +}
> +
> +static inline int da9150_gpadc_ibus_current_avg(int raw_val)
> +{
> + /* Convert to uA */
> + return (((4 * ((raw_val * 1000) + 500)) / 2048) * 1000);
> +}
> +
> +static inline int da9150_gpadc_vbus_21v_voltage_now(int raw_val)
> +{
> + /* Convert to uV */
> + return (((21 * ((raw_val * 1000) + 500)) / 1024) * 1000);
> +}
> +
> +static inline int da9150_gpadc_vsys_6v_voltage_now(int raw_val)
> +{
> + /* Convert to uV */
> + return (((3 * ((raw_val * 1000) + 500)) / 512) * 1000);
> +}
> +
> +static inline int da9150_gpadc_tjunc_temp(int raw_val)
> +{
> + /* Convert to 0.1 degrees C */
IIO wants mille degrees C
> + return (((879 - (1023 - raw_val)) * 10000) / 4420);
> +}
> +
> +static inline int da9150_gpadc_vbat_voltage_now(int raw_val)
> +{
> + /* Convert to uV */
> + return ((2932 * raw_val) + 1500000);
> +}
> +
> +int da9150_gpadc_read_processed(struct da9150_gpadc *gpadc, int channel,
> + int hw_chan)
static?
> +{
> + int raw_val, ret;
> +
> + raw_val = da9150_gpadc_read_adc(gpadc, hw_chan);
> + if (raw_val < 0)
> + return raw_val;
> +
> + switch (channel) {
> + case DA9150_GPADC_CHAN_GPIOA:
> + case DA9150_GPADC_CHAN_GPIOB:
> + case DA9150_GPADC_CHAN_GPIOC:
> + case DA9150_GPADC_CHAN_GPIOD:
> + ret = da9150_gpadc_gpio_5v_voltage_now(raw_val);
could return directly ...
> + break;
> + case DA9150_GPADC_CHAN_IBUS:
> + ret = da9150_gpadc_ibus_current_avg(raw_val);
> + break;
> + case DA9150_GPADC_CHAN_VBUS:
> + ret = da9150_gpadc_vbus_21v_voltage_now(raw_val);
> + break;
> + case DA9150_GPADC_CHAN_VSYS:
> + ret = da9150_gpadc_vsys_6v_voltage_now(raw_val);
> + break;
> + case DA9150_GPADC_CHAN_TJUNC_CORE:
> + case DA9150_GPADC_CHAN_TJUNC_OVP:
> + ret = da9150_gpadc_tjunc_temp(raw_val);
> + break;
> + default:
> + /* No processing for other channels so return raw value */
> + ret = raw_val;
> + break;
> + }
and save the final return
> +
> + return ret;
> +}
> +
> +int da9150_gpadc_read_scale(int channel)
static?
> +{
> + int ret;
> +
> + switch (channel) {
> + case DA9150_GPADC_CHAN_VBAT:
> + ret = 2932;
return directly?
> + break;
> + default:
> + ret = -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +int da9150_gpadc_read_offset(int channel)
> +{
> + int ret;
> +
> + switch (channel) {
> + case DA9150_GPADC_CHAN_VBAT:
> + ret = 1500000 / 2932;
return directly?
> + break;
> + default:
> + ret = -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +int da9150_gpadc_read_raw(struct iio_dev *indio_dev,
> + struct iio_chan_spec const *chan,
> + int *val, int *val2, long mask)
static?
> +{
> + struct da9150_gpadc *gpadc = iio_priv(indio_dev);
> + int ret;
> +
> + if ((chan->channel < DA9150_GPADC_CHAN_GPIOA) ||
> + (chan->channel > DA9150_GPADC_CHAN_TJUNC_OVP))
> + return -EINVAL;
> +
> + switch (mask) {
> + case IIO_CHAN_INFO_RAW:
> + case IIO_CHAN_INFO_PROCESSED:
> + ret = da9150_gpadc_read_processed(gpadc, chan->channel,
> + chan->address);
> + break;
> + case IIO_CHAN_INFO_SCALE:
> + ret = da9150_gpadc_read_scale(chan->channel);
> + break;
> + case IIO_CHAN_INFO_OFFSET:
> + ret = da9150_gpadc_read_offset(chan->channel);
> + break;
> + default:
> + ret = -EINVAL;
> + break;
> + }
> +
> + if (ret < 0)
> + return ret;
> +
> + *val = ret;
> +
> + return IIO_VAL_INT;
> +}
> +
> +static const struct iio_info da9150_gpadc_info = {
> + .read_raw = &da9150_gpadc_read_raw,
> + .driver_module = THIS_MODULE,
> +};
> +
> +#define GPADC_CHANNEL(_id, _hw_id, _type, chan_info, _ext_name) { \
> + .type = _type, \
> + .indexed = 1, \
there is only one current channel, it should not be indexed
> + .channel = DA9150_GPADC_CHAN_##_id, \
> + .address = DA9150_GPADC_HW_CHAN_##_hw_id, \
> + .info_mask_separate = chan_info, \
> + .extend_name = _ext_name, \
> + .datasheet_name = #_id, \
> +}
> +
> +#define GPADC_CHANNEL_RAW(_id, _hw_id, _type, _ext_name) \
> + GPADC_CHANNEL(_id, _hw_id, _type, BIT(IIO_CHAN_INFO_RAW), _ext_name)
> +
> +#define GPADC_CHANNEL_SCALED(_id, _hw_id, _type, _ext_name) \
> + GPADC_CHANNEL(_id, _hw_id, _type, \
> + BIT(IIO_CHAN_INFO_RAW) | \
> + BIT(IIO_CHAN_INFO_SCALE) | \
> + BIT(IIO_CHAN_INFO_OFFSET), \
> + _ext_name)
> +
> +#define GPADC_CHANNEL_PROCESSED(_id, _hw_id, _type, _ext_name) \
> + GPADC_CHANNEL(_id, _hw_id, _type, BIT(IIO_CHAN_INFO_PROCESSED), \
> + _ext_name)
> +
> +/* Supported channels */
> +static const struct iio_chan_spec da9150_gpadc_channels[] = {
> + GPADC_CHANNEL_PROCESSED(GPIOA, GPIOA_5V, IIO_VOLTAGE, "GPIOA"),
> + GPADC_CHANNEL_PROCESSED(GPIOB, GPIOB_5V, IIO_VOLTAGE, "GPIOB"),
> + GPADC_CHANNEL_PROCESSED(GPIOC, GPIOC_5V, IIO_VOLTAGE, "GPIOC"),
> + GPADC_CHANNEL_PROCESSED(GPIOD, GPIOD_5V, IIO_VOLTAGE, "GPIOD"),
> + GPADC_CHANNEL_PROCESSED(IBUS, IBUS_SENSE, IIO_CURRENT, "IBUS"),
> + GPADC_CHANNEL_PROCESSED(VBUS, VBUS_DIV_, IIO_VOLTAGE, "VBUS"),
> + GPADC_CHANNEL_RAW(ID, ID, IIO_VOLTAGE, "ID"),
> + GPADC_CHANNEL_PROCESSED(VSYS, VSYS, IIO_VOLTAGE, "VSYS"),
> + GPADC_CHANNEL_SCALED(VBAT, VBAT, IIO_VOLTAGE, "VBAT"),
> + GPADC_CHANNEL_RAW(TBAT, TBAT, IIO_VOLTAGE, "TBAT"),
> + GPADC_CHANNEL_PROCESSED(TJUNC_CORE, TJUNC_CORE, IIO_TEMP, "TJUNC_CORE"),
> + GPADC_CHANNEL_PROCESSED(TJUNC_OVP, TJUNC_OVP, IIO_TEMP, "TJUNC_OVP"),
> +};
> +
> +/* Default maps used by da9150-charger */
> +static struct iio_map da9150_gpadc_default_maps[] = {
> + {
> + .consumer_dev_name = "da9150-charger",
> + .consumer_channel = "CHAN_IBUS",
> + .adc_channel_label = "IBUS",
> + },
> + {
> + .consumer_dev_name = "da9150-charger",
> + .consumer_channel = "CHAN_VBUS",
> + .adc_channel_label = "VBUS",
> + },
> + {
> + .consumer_dev_name = "da9150-charger",
> + .consumer_channel = "CHAN_TJUNC",
> + .adc_channel_label = "TJUNC_CORE",
> + },
> + {
> + .consumer_dev_name = "da9150-charger",
> + .consumer_channel = "CHAN_VBAT",
> + .adc_channel_label = "VBAT",
> + },
> + {},
> +};
> +
> +static int da9150_gpadc_probe(struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct da9150 *da9150 = dev_get_drvdata(dev->parent);
> + struct da9150_gpadc *gpadc;
> + struct iio_dev *indio_dev;
> + int ret;
> +
> + indio_dev = devm_iio_device_alloc(&pdev->dev,
> + sizeof(struct da9150_gpadc));
> + if (!indio_dev) {
> + dev_err(&pdev->dev, "Failed to allocate IIO device\n");
> + return -ENOMEM;
> + }
> + gpadc = iio_priv(indio_dev);
> +
> + platform_set_drvdata(pdev, indio_dev);
> + gpadc->da9150 = da9150;
> + gpadc->dev = dev;
> +
> + ret = iio_map_array_register(indio_dev, da9150_gpadc_default_maps);
> + if (ret) {
> + dev_err(dev, "Failed to register IIO maps: %d\n", ret);
> + goto iio_map_fail;
just return here?
> + }
> +
> + mutex_init(&gpadc->lock);
> + init_completion(&gpadc->complete);
> +
> + /* Register IRQ */
> + ret = da9150_register_irq(pdev, gpadc, da9150_gpadc_irq, "GPADC");
> + if (ret < 0)
> + goto irq_fail;
> +
> + indio_dev->name = dev_name(dev);
> + indio_dev->dev.parent = dev;
> + indio_dev->dev.of_node = pdev->dev.of_node;
> + indio_dev->info = &da9150_gpadc_info;
> + indio_dev->modes = INDIO_DIRECT_MODE;
> + indio_dev->channels = da9150_gpadc_channels;
> + indio_dev->num_channels = ARRAY_SIZE(da9150_gpadc_channels);
> +
> + ret = iio_device_register(indio_dev);
> + if (ret) {
> + dev_err(dev, "Failed to register IIO device: %d\n", ret);
> + goto iio_dev_fail;
> + }
> +
> + return ret;
> +
> +iio_dev_fail:
> +irq_fail:
why two labels?
> + iio_map_array_unregister(indio_dev);
> +
> +iio_map_fail:
> + return ret;
> +}
> +
> +static int da9150_gpadc_remove(struct platform_device *pdev)
> +{
> + struct iio_dev *indio_dev = platform_get_drvdata(pdev);
> +
> + iio_map_array_unregister(indio_dev);
unregister irq?
> + iio_device_unregister(indio_dev);
> +
> + return 0;
> +}
> +
> +static struct platform_driver da9150_gpadc_driver = {
> + .driver = {
> + .name = "da9150-gpadc",
> + .owner = THIS_MODULE,
> + },
> + .probe = da9150_gpadc_probe,
> + .remove = da9150_gpadc_remove,
> +};
> +
> +module_platform_driver(da9150_gpadc_driver);
> +
> +MODULE_DESCRIPTION("GPADC Driver for DA9150");
> +MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com");
> +MODULE_LICENSE("GPL");
> --
> 1.9.3
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
--
Peter Meerwald
+43-664-2444418 (mobile)
^ permalink raw reply [flat|nested] 25+ messages in thread* Re: [PATCH v2 3/7] iio: Add support for DA9150 GPADC
2014-08-28 11:28 ` Peter Meerwald
@ 2014-08-30 20:01 ` Jonathan Cameron
2014-09-09 10:53 ` Opensource [Adam Thomson]
2014-09-09 10:51 ` Opensource [Adam Thomson]
1 sibling, 1 reply; 25+ messages in thread
From: Jonathan Cameron @ 2014-08-30 20:01 UTC (permalink / raw)
To: Peter Meerwald, Adam Thomson; +Cc: Lee Jones, linux-iio, support.opensource
On 28/08/14 12:28, Peter Meerwald wrote:
>
> some minor comments inline
A few more from me + make sure all your units match the ABI and in
particular that everything you use is documented in
Documentation/ABI/testing/syfs-bus-iio. Some stuff that only
exists in staging drivers isn't documented in there as yet
(current measurements for example) so the docs will need additions
alongside this driver.
Thanks,
Jonathan
>
>> This patch adds support for DA9150 Charger & Fuel-Gauge IC GPADC.
>>
>> Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
>> ---
>> drivers/iio/adc/Kconfig | 9 +
>> drivers/iio/adc/Makefile | 1 +
>> drivers/iio/adc/da9150-gpadc.c | 430 +++++++++++++++++++++++++++++++++++++++++
>> 3 files changed, 440 insertions(+)
>> create mode 100644 drivers/iio/adc/da9150-gpadc.c
>>
>> diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
>> index 11b048a..8041347 100644
>> --- a/drivers/iio/adc/Kconfig
>> +++ b/drivers/iio/adc/Kconfig
>> @@ -127,6 +127,15 @@ config AT91_ADC
>> help
>> Say yes here to build support for Atmel AT91 ADC.
>>
>> +config DA9150_GPADC
>> + tristate "Dialog DA9150 GPADC driver support"
>> + depends on MFD_DA9150
>> + help
>> + Say yes here to build support for Dialog DA9150 GPADC.
>> +
>> + This driver can also be built as a module. If chosen, the module name
>> + will be da9150-gpadc.
>> +
>> config EXYNOS_ADC
>> tristate "Exynos ADC driver support"
>> depends on ARCH_EXYNOS || (OF && COMPILE_TEST)
>> diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
>> index ad81b51..48413d2 100644
>> --- a/drivers/iio/adc/Makefile
>> +++ b/drivers/iio/adc/Makefile
>> @@ -14,6 +14,7 @@ obj-$(CONFIG_AD7793) += ad7793.o
>> obj-$(CONFIG_AD7887) += ad7887.o
>> obj-$(CONFIG_AD799X) += ad799x.o
>> obj-$(CONFIG_AT91_ADC) += at91_adc.o
>> +obj-$(CONFIG_DA9150_GPADC) += da9150-gpadc.o
>> obj-$(CONFIG_EXYNOS_ADC) += exynos_adc.o
>> obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o
>> obj-$(CONFIG_MAX1027) += max1027.o
>> diff --git a/drivers/iio/adc/da9150-gpadc.c b/drivers/iio/adc/da9150-gpadc.c
>> new file mode 100644
>> index 0000000..21a21a9
>> --- /dev/null
>> +++ b/drivers/iio/adc/da9150-gpadc.c
>> @@ -0,0 +1,430 @@
>> +/*
>> + * DA9150 GPADC Driver
>> + *
>> + * Copyright (c) 2014 Dialog Semiconductor
>> + *
>> + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify it
>> + * under the terms of the GNU General Public License as published by the
>> + * Free Software Foundation; either version 2 of the License, or (at your
>> + * option) any later version.
>> + */
>> +
>> +#include <linux/kernel.h>
>> +#include <linux/slab.h>
>> +#include <linux/module.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/interrupt.h>
>> +
>> +#include <linux/mfd/da9150/core.h>
>> +#include <linux/mfd/da9150/pdata.h>
>> +#include <linux/mfd/da9150/registers.h>
>> +
>> +#include <linux/iio/iio.h>
>> +#include <linux/iio/machine.h>
>> +#include <linux/iio/driver.h>
>> +
>> +
>> +/* Channels */
>> +enum da9150_gpadc_hw_channel {
>> + DA9150_GPADC_HW_CHAN_GPIOA_2V = 0,
>> + DA9150_GPADC_HW_CHAN_GPIOA_2V_,
>
> why the underscore_ notation?
> couldn't you use e.g. DA9150_GPADC_HW_CHAN_GPIOB_2V = 2?
>
>> + DA9150_GPADC_HW_CHAN_GPIOB_2V,
>> + DA9150_GPADC_HW_CHAN_GPIOB_2V_,
>> + DA9150_GPADC_HW_CHAN_GPIOC_2V,
>> + DA9150_GPADC_HW_CHAN_GPIOC_2V_,
>> + DA9150_GPADC_HW_CHAN_GPIOD_2V,
>> + DA9150_GPADC_HW_CHAN_GPIOD_2V_,
>> + DA9150_GPADC_HW_CHAN_IBUS_SENSE,
>> + DA9150_GPADC_HW_CHAN_IBUS_SENSE_,
>> + DA9150_GPADC_HW_CHAN_VBUS_DIV,
>> + DA9150_GPADC_HW_CHAN_VBUS_DIV_,
>> + DA9150_GPADC_HW_CHAN_ID,
>> + DA9150_GPADC_HW_CHAN_ID_,
>> + DA9150_GPADC_HW_CHAN_VSYS,
>> + DA9150_GPADC_HW_CHAN_VSYS_,
>> + DA9150_GPADC_HW_CHAN_GPIOA_5V,
>> + DA9150_GPADC_HW_CHAN_GPIOA_5V_,
>> + DA9150_GPADC_HW_CHAN_GPIOB_5V,
>> + DA9150_GPADC_HW_CHAN_GPIOB_5V_,
>> + DA9150_GPADC_HW_CHAN_GPIOC_5V,
>> + DA9150_GPADC_HW_CHAN_GPIOC_5V_,
>> + DA9150_GPADC_HW_CHAN_GPIOD_5V,
>> + DA9150_GPADC_HW_CHAN_GPIOD_5V_,
>> + DA9150_GPADC_HW_CHAN_VBAT,
>> + DA9150_GPADC_HW_CHAN_VBAT_,
>> + DA9150_GPADC_HW_CHAN_TBAT,
>> + DA9150_GPADC_HW_CHAN_TBAT_,
>> + DA9150_GPADC_HW_CHAN_TJUNC_CORE,
>> + DA9150_GPADC_HW_CHAN_TJUNC_CORE_,
>> + DA9150_GPADC_HW_CHAN_TJUNC_OVP,
>> + DA9150_GPADC_HW_CHAN_TJUNC_OVP_,
>> +};
>> +
>> +enum da9150_gpadc_channel {
>> + DA9150_GPADC_CHAN_GPIOA = 0,
>> + DA9150_GPADC_CHAN_GPIOB,
>> + DA9150_GPADC_CHAN_GPIOC,
>> + DA9150_GPADC_CHAN_GPIOD,
>> + DA9150_GPADC_CHAN_IBUS,
>> + DA9150_GPADC_CHAN_VBUS,
>> + DA9150_GPADC_CHAN_ID,
>> + DA9150_GPADC_CHAN_VSYS,
>> + DA9150_GPADC_CHAN_VBAT,
>> + DA9150_GPADC_CHAN_TBAT,
>> + DA9150_GPADC_CHAN_TJUNC_CORE,
>> + DA9150_GPADC_CHAN_TJUNC_OVP,
>> +};
>> +
>> +/* Private data */
>> +struct da9150_gpadc {
>> + struct da9150 *da9150;
>> + struct device *dev;
>> +
>> + struct mutex lock;
>> + struct completion complete;
>> +};
>> +
>> +
>> +static irqreturn_t da9150_gpadc_irq(int irq, void *data)
>> +{
>> +
>> + struct da9150_gpadc *gpadc = data;
>> +
>> + complete(&gpadc->complete);
>> +
>> + return IRQ_HANDLED;
>> +}
>> +
>> +int da9150_gpadc_read_adc(struct da9150_gpadc *gpadc, int hw_chan)
>
> static?
>
>> +{
>> + u8 result_regs[2];
>> + int result;
>> +
>> + mutex_lock(&gpadc->lock);
>> +
>> + /* Set channel & enable measurement */
>> + da9150_reg_write(gpadc->da9150, DA9150_GPADC_MAN,
>> + (DA9150_GPADC_EN_MASK |
>> + hw_chan << DA9150_GPADC_MUX_SHIFT));
>> +
>> + /* Consume left-over completion from a previous timeout */
>> + try_wait_for_completion(&gpadc->complete);
>> +
>> + /* Check for actual completion */
>> + wait_for_completion_timeout(&gpadc->complete, msecs_to_jiffies(5));
>> +
>> + /* Read result and status from device */
>> + da9150_bulk_read(gpadc->da9150, DA9150_GPADC_RES_A, 2, result_regs);
>> +
>> + mutex_unlock(&gpadc->lock);
>> +
>> + /* Check to make sure device really has completed reading */
>> + if (result_regs[1] & DA9150_GPADC_RUN_MASK) {
>> + dev_err(gpadc->dev, "Timeout on channel %d of GP-ADC\n",
>
> GPADC everywhere else
>
>> + hw_chan);
>> + return -ETIMEDOUT;
>> + }
>> +
>> + /* LSBs - 2 bits */
>> + result = (result_regs[1] & DA9150_GPADC_RES_L_MASK) >>
>> + DA9150_GPADC_RES_L_SHIFT;
>> + /* MSBs - 8 bits */
>> + result |= result_regs[0] << DA9150_GPADC_RES_L_BITS;
>
> can't the read be done with a 16bit read?
>
>> +
>> + return result;
>> +}
>> +
>> +static inline int da9150_gpadc_gpio_5v_voltage_now(int raw_val)
>> +{
>> + /* Convert to uV */
>> + return (((6 * ((raw_val * 1000) + 500)) / 1024) * 1000);
Base units of voltage are millivolts. See Documentation/ABI/testing/sysfs-bus-iio.
>
> outer parenthesis not needed, here and below
>
>> +}
>> +
>> +static inline int da9150_gpadc_ibus_current_avg(int raw_val)
>> +{
>> + /* Convert to uA */
>> + return (((4 * ((raw_val * 1000) + 500)) / 2048) * 1000);
interestingly this is actually our first current channel outside staging.
As such the docs don't cover it. Please add, keeping inline with the
units used in hwmon. mA, IIRC
>> +}
>> +
>> +static inline int da9150_gpadc_vbus_21v_voltage_now(int raw_val)
>> +{
>> + /* Convert to uV */
>> + return (((21 * ((raw_val * 1000) + 500)) / 1024) * 1000);
>> +}
>> +
>> +static inline int da9150_gpadc_vsys_6v_voltage_now(int raw_val)
>> +{
>> + /* Convert to uV */
>> + return (((3 * ((raw_val * 1000) + 500)) / 512) * 1000);
>> +}
>> +
>> +static inline int da9150_gpadc_tjunc_temp(int raw_val)
>> +{
>> + /* Convert to 0.1 degrees C */
>
> IIO wants mille degrees C
Exactly. Please check all of these correspond to the base units required
by the documentation. Most of these might be better handled as raw
with scale and offset provided, letting the maths be doing in userspace using
floating point.
>
>> + return (((879 - (1023 - raw_val)) * 10000) / 4420);
>> +}
>> +
>> +static inline int da9150_gpadc_vbat_voltage_now(int raw_val)
>> +{
>> + /* Convert to uV */
>> + return ((2932 * raw_val) + 1500000);
>> +}
>> +
>> +int da9150_gpadc_read_processed(struct da9150_gpadc *gpadc, int channel,
>> + int hw_chan)
>
> static?
>
>> +{
>> + int raw_val, ret;
>> +
>> + raw_val = da9150_gpadc_read_adc(gpadc, hw_chan);
>> + if (raw_val < 0)
>> + return raw_val;
>> +
>> + switch (channel) {
>> + case DA9150_GPADC_CHAN_GPIOA:
>> + case DA9150_GPADC_CHAN_GPIOB:
>> + case DA9150_GPADC_CHAN_GPIOC:
>> + case DA9150_GPADC_CHAN_GPIOD:
>> + ret = da9150_gpadc_gpio_5v_voltage_now(raw_val);
>
> could return directly ...
>
>> + break;
>> + case DA9150_GPADC_CHAN_IBUS:
>> + ret = da9150_gpadc_ibus_current_avg(raw_val);
>> + break;
>> + case DA9150_GPADC_CHAN_VBUS:
>> + ret = da9150_gpadc_vbus_21v_voltage_now(raw_val);
>> + break;
>> + case DA9150_GPADC_CHAN_VSYS:
>> + ret = da9150_gpadc_vsys_6v_voltage_now(raw_val);
>> + break;
>> + case DA9150_GPADC_CHAN_TJUNC_CORE:
>> + case DA9150_GPADC_CHAN_TJUNC_OVP:
>> + ret = da9150_gpadc_tjunc_temp(raw_val);
>> + break;
>> + default:
>> + /* No processing for other channels so return raw value */
>> + ret = raw_val;
>> + break;
>> + }
>
> and save the final return
>> +
>> + return ret;
>> +}
>> +
>> +int da9150_gpadc_read_scale(int channel)
>
> static?
>
>> +{
>> + int ret;
>> +
>> + switch (channel) {
>> + case DA9150_GPADC_CHAN_VBAT:
>> + ret = 2932;
>
> return directly?
>
>> + break;
>> + default:
>> + ret = -EINVAL;
>> + }
>> +
>> + return ret;
>> +}
>> +
>> +int da9150_gpadc_read_offset(int channel)
>> +{
>> + int ret;
>> +
>> + switch (channel) {
>> + case DA9150_GPADC_CHAN_VBAT:
>> + ret = 1500000 / 2932;
>
> return directly?
>
>> + break;
>> + default:
>> + ret = -EINVAL;
>> + }
>> +
>> + return ret;
>> +}
>> +
>> +int da9150_gpadc_read_raw(struct iio_dev *indio_dev,
>> + struct iio_chan_spec const *chan,
>> + int *val, int *val2, long mask)
>
> static?
>
>> +{
>> + struct da9150_gpadc *gpadc = iio_priv(indio_dev);
>> + int ret;
>> +
>> + if ((chan->channel < DA9150_GPADC_CHAN_GPIOA) ||
>> + (chan->channel > DA9150_GPADC_CHAN_TJUNC_OVP))
>> + return -EINVAL;
>> +
>> + switch (mask) {
>> + case IIO_CHAN_INFO_RAW:
>> + case IIO_CHAN_INFO_PROCESSED:
Would be cleaner to have each of these functions use ret for return code
including IIO_VAL_INT and pass val as an arguement. Would get rid
of the fiddly handling at the end of this function and allow direct
returns from each of the case statements.
Also, are the base units of all of these channels really giving us
an integer result? E.g. mV, mA etc? Not impossible, but seems unlikely!
>> + ret = da9150_gpadc_read_processed(gpadc, chan->channel,
>> + chan->address);
>> + break;
>> + case IIO_CHAN_INFO_SCALE:
>> + ret = da9150_gpadc_read_scale(chan->channel);
>> + break;
>> + case IIO_CHAN_INFO_OFFSET:
>> + ret = da9150_gpadc_read_offset(chan->channel);
>> + break;
>> + default:
>> + ret = -EINVAL;
>> + break;
>> + }
>> +
>> + if (ret < 0)
>> + return ret;
>> +
>> + *val = ret;
>> +
>> + return IIO_VAL_INT;
>> +}
>> +
>> +static const struct iio_info da9150_gpadc_info = {
>> + .read_raw = &da9150_gpadc_read_raw,
>> + .driver_module = THIS_MODULE,
>> +};
>> +
>> +#define GPADC_CHANNEL(_id, _hw_id, _type, chan_info, _ext_name) { \
>> + .type = _type, \
>> + .indexed = 1, \
>
> there is only one current channel, it should not be indexed
Optional. Either way userspace should cope fine. At one point I thought
about insisting everything was indexed, to reduce userspace complexity
(ever so slightly) but was a bit late by the time I thought of it ;)
>
>> + .channel = DA9150_GPADC_CHAN_##_id, \
>> + .address = DA9150_GPADC_HW_CHAN_##_hw_id, \
>> + .info_mask_separate = chan_info, \
>> + .extend_name = _ext_name, \
>> + .datasheet_name = #_id, \
>> +}
>> +
>> +#define GPADC_CHANNEL_RAW(_id, _hw_id, _type, _ext_name) \
>> + GPADC_CHANNEL(_id, _hw_id, _type, BIT(IIO_CHAN_INFO_RAW), _ext_name)
>> +
>> +#define GPADC_CHANNEL_SCALED(_id, _hw_id, _type, _ext_name) \
>> + GPADC_CHANNEL(_id, _hw_id, _type, \
>> + BIT(IIO_CHAN_INFO_RAW) | \
>> + BIT(IIO_CHAN_INFO_SCALE) | \
>> + BIT(IIO_CHAN_INFO_OFFSET), \
>> + _ext_name)
>> +
>> +#define GPADC_CHANNEL_PROCESSED(_id, _hw_id, _type, _ext_name) \
>> + GPADC_CHANNEL(_id, _hw_id, _type, BIT(IIO_CHAN_INFO_PROCESSED), \
>> + _ext_name)
This macro and similar need a DA9150 prefix to avoid likely name clashes in
future.
>> +
>> +/* Supported channels */
>> +static const struct iio_chan_spec da9150_gpadc_channels[] = {
>> + GPADC_CHANNEL_PROCESSED(GPIOA, GPIOA_5V, IIO_VOLTAGE, "GPIOA"),
>> + GPADC_CHANNEL_PROCESSED(GPIOB, GPIOB_5V, IIO_VOLTAGE, "GPIOB"),
>> + GPADC_CHANNEL_PROCESSED(GPIOC, GPIOC_5V, IIO_VOLTAGE, "GPIOC"),
>> + GPADC_CHANNEL_PROCESSED(GPIOD, GPIOD_5V, IIO_VOLTAGE, "GPIOD"),
>> + GPADC_CHANNEL_PROCESSED(IBUS, IBUS_SENSE, IIO_CURRENT, "IBUS"),
>> + GPADC_CHANNEL_PROCESSED(VBUS, VBUS_DIV_, IIO_VOLTAGE, "VBUS"),
>> + GPADC_CHANNEL_RAW(ID, ID, IIO_VOLTAGE, "ID"),
>> + GPADC_CHANNEL_PROCESSED(VSYS, VSYS, IIO_VOLTAGE, "VSYS"),
>> + GPADC_CHANNEL_SCALED(VBAT, VBAT, IIO_VOLTAGE, "VBAT"),
>> + GPADC_CHANNEL_RAW(TBAT, TBAT, IIO_VOLTAGE, "TBAT"),
>> + GPADC_CHANNEL_PROCESSED(TJUNC_CORE, TJUNC_CORE, IIO_TEMP, "TJUNC_CORE"),
>> + GPADC_CHANNEL_PROCESSED(TJUNC_OVP, TJUNC_OVP, IIO_TEMP, "TJUNC_OVP"),
>> +};
>> +
>> +/* Default maps used by da9150-charger */
>> +static struct iio_map da9150_gpadc_default_maps[] = {
>> + {
>> + .consumer_dev_name = "da9150-charger",
>> + .consumer_channel = "CHAN_IBUS",
>> + .adc_channel_label = "IBUS",
>> + },
>> + {
>> + .consumer_dev_name = "da9150-charger",
>> + .consumer_channel = "CHAN_VBUS",
>> + .adc_channel_label = "VBUS",
>> + },
>> + {
>> + .consumer_dev_name = "da9150-charger",
>> + .consumer_channel = "CHAN_TJUNC",
>> + .adc_channel_label = "TJUNC_CORE",
>> + },
>> + {
>> + .consumer_dev_name = "da9150-charger",
>> + .consumer_channel = "CHAN_VBAT",
>> + .adc_channel_label = "VBAT",
>> + },
>> + {},
>> +};
>> +
>> +static int da9150_gpadc_probe(struct platform_device *pdev)
>> +{
>> + struct device *dev = &pdev->dev;
>> + struct da9150 *da9150 = dev_get_drvdata(dev->parent);
>> + struct da9150_gpadc *gpadc;
>> + struct iio_dev *indio_dev;
>> + int ret;
>> +
>> + indio_dev = devm_iio_device_alloc(&pdev->dev,
>> + sizeof(struct da9150_gpadc));
>> + if (!indio_dev) {
>> + dev_err(&pdev->dev, "Failed to allocate IIO device\n");
>> + return -ENOMEM;
>> + }
>> + gpadc = iio_priv(indio_dev);
>> +
>> + platform_set_drvdata(pdev, indio_dev);
>> + gpadc->da9150 = da9150;
>> + gpadc->dev = dev;
>> +
>> + ret = iio_map_array_register(indio_dev, da9150_gpadc_default_maps);
>> + if (ret) {
>> + dev_err(dev, "Failed to register IIO maps: %d\n", ret);
>> + goto iio_map_fail;
>
> just return here?
>
>> + }
>> +
>> + mutex_init(&gpadc->lock);
>> + init_completion(&gpadc->complete);
>> +
>> + /* Register IRQ */
>> + ret = da9150_register_irq(pdev, gpadc, da9150_gpadc_irq, "GPADC");
This function wants renaming to indicate that it is doing a managed
irq request... devm_da9150 etc would be conventional ;)
>> + if (ret < 0)
>> + goto irq_fail;
>> +
>> + indio_dev->name = dev_name(dev);
>> + indio_dev->dev.parent = dev;
>> + indio_dev->dev.of_node = pdev->dev.of_node;
>> + indio_dev->info = &da9150_gpadc_info;
>> + indio_dev->modes = INDIO_DIRECT_MODE;
>> + indio_dev->channels = da9150_gpadc_channels;
>> + indio_dev->num_channels = ARRAY_SIZE(da9150_gpadc_channels);
>> +
>> + ret = iio_device_register(indio_dev);
>> + if (ret) {
>> + dev_err(dev, "Failed to register IIO device: %d\n", ret);
>> + goto iio_dev_fail;
>> + }
>> +
>> + return ret;
>> +
>> +iio_dev_fail:
>> +irq_fail:
>
> why two labels?
>
>> + iio_map_array_unregister(indio_dev);
>> +
>> +iio_map_fail:
>> + return ret;
>> +}
>> +
>> +static int da9150_gpadc_remove(struct platform_device *pdev)
>> +{
>> + struct iio_dev *indio_dev = platform_get_drvdata(pdev);
>> +
>> + iio_map_array_unregister(indio_dev);
>
> unregister irq?
Not actually needed as it was a devm register - having said that
the function should indicate that it's naming.
>
>> + iio_device_unregister(indio_dev);
>> +
>> + return 0;
>> +}
>> +
>> +static struct platform_driver da9150_gpadc_driver = {
>> + .driver = {
>> + .name = "da9150-gpadc",
>> + .owner = THIS_MODULE,
>> + },
>> + .probe = da9150_gpadc_probe,
>> + .remove = da9150_gpadc_remove,
>> +};
>> +
>> +module_platform_driver(da9150_gpadc_driver);
>> +
>> +MODULE_DESCRIPTION("GPADC Driver for DA9150");
>> +MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com");
>> +MODULE_LICENSE("GPL");
>> --
>> 1.9.3
>>
>> --
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>>
>
^ permalink raw reply [flat|nested] 25+ messages in thread* RE: [PATCH v2 3/7] iio: Add support for DA9150 GPADC
2014-08-30 20:01 ` Jonathan Cameron
@ 2014-09-09 10:53 ` Opensource [Adam Thomson]
2014-09-14 17:26 ` Jonathan Cameron
0 siblings, 1 reply; 25+ messages in thread
From: Opensource [Adam Thomson] @ 2014-09-09 10:53 UTC (permalink / raw)
To: Jonathan Cameron, Peter Meerwald, Opensource [Adam Thomson]
Cc: Lee Jones, linux-iio@vger.kernel.org, Support Opensource
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^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 3/7] iio: Add support for DA9150 GPADC
2014-09-09 10:53 ` Opensource [Adam Thomson]
@ 2014-09-14 17:26 ` Jonathan Cameron
2014-09-15 10:32 ` Opensource [Adam Thomson]
0 siblings, 1 reply; 25+ messages in thread
From: Jonathan Cameron @ 2014-09-14 17:26 UTC (permalink / raw)
To: Opensource [Adam Thomson], Peter Meerwald
Cc: Lee Jones, linux-iio@vger.kernel.org, Support Opensource
On 09/09/14 11:53, Opensource [Adam Thomson] wrote:
> On August 30, 2014 21:01, Jonathan Cameron wrote:
>
>> On 28/08/14 12:28, Peter Meerwald wrote:
>>>
>>> some minor comments inline
>> A few more from me + make sure all your units match the ABI and in
>> particular that everything you use is documented in
>> Documentation/ABI/testing/syfs-bus-iio. Some stuff that only
>> exists in staging drivers isn't documented in there as yet
>> (current measurements for example) so the docs will need additions
>> alongside this driver.
>>
>> Thanks,
>>
>> Jonathan
>>>
>>>> This patch adds support for DA9150 Charger & Fuel-Gauge IC GPADC.
>>>>
>>>> Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
>>>> ---
>>>> drivers/iio/adc/Kconfig | 9 +
>>>> drivers/iio/adc/Makefile | 1 +
>>>> drivers/iio/adc/da9150-gpadc.c | 430
>> +++++++++++++++++++++++++++++++++++++++++
>>>> 3 files changed, 440 insertions(+)
>>>> create mode 100644 drivers/iio/adc/da9150-gpadc.c
>>>>
>>>> diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
>>>> index 11b048a..8041347 100644
>>>> --- a/drivers/iio/adc/Kconfig
>>>> +++ b/drivers/iio/adc/Kconfig
>>>> @@ -127,6 +127,15 @@ config AT91_ADC
>>>> help
>>>> Say yes here to build support for Atmel AT91 ADC.
>>>>
>>>> +config DA9150_GPADC
>>>> + tristate "Dialog DA9150 GPADC driver support"
>>>> + depends on MFD_DA9150
>>>> + help
>>>> + Say yes here to build support for Dialog DA9150 GPADC.
>>>> +
>>>> + This driver can also be built as a module. If chosen, the module name
>>>> + will be da9150-gpadc.
>>>> +
>>>> config EXYNOS_ADC
>>>> tristate "Exynos ADC driver support"
>>>> depends on ARCH_EXYNOS || (OF && COMPILE_TEST)
>>>> diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
>>>> index ad81b51..48413d2 100644
>>>> --- a/drivers/iio/adc/Makefile
>>>> +++ b/drivers/iio/adc/Makefile
>>>> @@ -14,6 +14,7 @@ obj-$(CONFIG_AD7793) += ad7793.o
>>>> obj-$(CONFIG_AD7887) += ad7887.o
>>>> obj-$(CONFIG_AD799X) += ad799x.o
>>>> obj-$(CONFIG_AT91_ADC) += at91_adc.o
>>>> +obj-$(CONFIG_DA9150_GPADC) += da9150-gpadc.o
>>>> obj-$(CONFIG_EXYNOS_ADC) += exynos_adc.o
>>>> obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o
>>>> obj-$(CONFIG_MAX1027) += max1027.o
>>>> diff --git a/drivers/iio/adc/da9150-gpadc.c b/drivers/iio/adc/da9150-gpadc.c
>>>> new file mode 100644
>>>> index 0000000..21a21a9
>>>> --- /dev/null
>>>> +++ b/drivers/iio/adc/da9150-gpadc.c
>>>> @@ -0,0 +1,430 @@
>>>> +/*
>>>> + * DA9150 GPADC Driver
>>>> + *
>>>> + * Copyright (c) 2014 Dialog Semiconductor
>>>> + *
>>>> + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
>>>> + *
>>>> + * This program is free software; you can redistribute it and/or modify it
>>>> + * under the terms of the GNU General Public License as published by the
>>>> + * Free Software Foundation; either version 2 of the License, or (at your
>>>> + * option) any later version.
>>>> + */
>>>> +
>>>> +#include <linux/kernel.h>
>>>> +#include <linux/slab.h>
>>>> +#include <linux/module.h>
>>>> +#include <linux/platform_device.h>
>>>> +#include <linux/interrupt.h>
>>>> +
>>>> +#include <linux/mfd/da9150/core.h>
>>>> +#include <linux/mfd/da9150/pdata.h>
>>>> +#include <linux/mfd/da9150/registers.h>
>>>> +
>>>> +#include <linux/iio/iio.h>
>>>> +#include <linux/iio/machine.h>
>>>> +#include <linux/iio/driver.h>
>>>> +
>>>> +
>>>> +/* Channels */
>>>> +enum da9150_gpadc_hw_channel {
>>>> + DA9150_GPADC_HW_CHAN_GPIOA_2V = 0,
>>>> + DA9150_GPADC_HW_CHAN_GPIOA_2V_,
>>>
>>> why the underscore_ notation?
>>> couldn't you use e.g. DA9150_GPADC_HW_CHAN_GPIOB_2V = 2?
>>>
>>>> + DA9150_GPADC_HW_CHAN_GPIOB_2V,
>>>> + DA9150_GPADC_HW_CHAN_GPIOB_2V_,
>>>> + DA9150_GPADC_HW_CHAN_GPIOC_2V,
>>>> + DA9150_GPADC_HW_CHAN_GPIOC_2V_,
>>>> + DA9150_GPADC_HW_CHAN_GPIOD_2V,
>>>> + DA9150_GPADC_HW_CHAN_GPIOD_2V_,
>>>> + DA9150_GPADC_HW_CHAN_IBUS_SENSE,
>>>> + DA9150_GPADC_HW_CHAN_IBUS_SENSE_,
>>>> + DA9150_GPADC_HW_CHAN_VBUS_DIV,
>>>> + DA9150_GPADC_HW_CHAN_VBUS_DIV_,
>>>> + DA9150_GPADC_HW_CHAN_ID,
>>>> + DA9150_GPADC_HW_CHAN_ID_,
>>>> + DA9150_GPADC_HW_CHAN_VSYS,
>>>> + DA9150_GPADC_HW_CHAN_VSYS_,
>>>> + DA9150_GPADC_HW_CHAN_GPIOA_5V,
>>>> + DA9150_GPADC_HW_CHAN_GPIOA_5V_,
>>>> + DA9150_GPADC_HW_CHAN_GPIOB_5V,
>>>> + DA9150_GPADC_HW_CHAN_GPIOB_5V_,
>>>> + DA9150_GPADC_HW_CHAN_GPIOC_5V,
>>>> + DA9150_GPADC_HW_CHAN_GPIOC_5V_,
>>>> + DA9150_GPADC_HW_CHAN_GPIOD_5V,
>>>> + DA9150_GPADC_HW_CHAN_GPIOD_5V_,
>>>> + DA9150_GPADC_HW_CHAN_VBAT,
>>>> + DA9150_GPADC_HW_CHAN_VBAT_,
>>>> + DA9150_GPADC_HW_CHAN_TBAT,
>>>> + DA9150_GPADC_HW_CHAN_TBAT_,
>>>> + DA9150_GPADC_HW_CHAN_TJUNC_CORE,
>>>> + DA9150_GPADC_HW_CHAN_TJUNC_CORE_,
>>>> + DA9150_GPADC_HW_CHAN_TJUNC_OVP,
>>>> + DA9150_GPADC_HW_CHAN_TJUNC_OVP_,
>>>> +};
>>>> +
>>>> +enum da9150_gpadc_channel {
>>>> + DA9150_GPADC_CHAN_GPIOA = 0,
>>>> + DA9150_GPADC_CHAN_GPIOB,
>>>> + DA9150_GPADC_CHAN_GPIOC,
>>>> + DA9150_GPADC_CHAN_GPIOD,
>>>> + DA9150_GPADC_CHAN_IBUS,
>>>> + DA9150_GPADC_CHAN_VBUS,
>>>> + DA9150_GPADC_CHAN_ID,
>>>> + DA9150_GPADC_CHAN_VSYS,
>>>> + DA9150_GPADC_CHAN_VBAT,
>>>> + DA9150_GPADC_CHAN_TBAT,
>>>> + DA9150_GPADC_CHAN_TJUNC_CORE,
>>>> + DA9150_GPADC_CHAN_TJUNC_OVP,
>>>> +};
>>>> +
>>>> +/* Private data */
>>>> +struct da9150_gpadc {
>>>> + struct da9150 *da9150;
>>>> + struct device *dev;
>>>> +
>>>> + struct mutex lock;
>>>> + struct completion complete;
>>>> +};
>>>> +
>>>> +
>>>> +static irqreturn_t da9150_gpadc_irq(int irq, void *data)
>>>> +{
>>>> +
>>>> + struct da9150_gpadc *gpadc = data;
>>>> +
>>>> + complete(&gpadc->complete);
>>>> +
>>>> + return IRQ_HANDLED;
>>>> +}
>>>> +
>>>> +int da9150_gpadc_read_adc(struct da9150_gpadc *gpadc, int hw_chan)
>>>
>>> static?
>>>
>>>> +{
>>>> + u8 result_regs[2];
>>>> + int result;
>>>> +
>>>> + mutex_lock(&gpadc->lock);
>>>> +
>>>> + /* Set channel & enable measurement */
>>>> + da9150_reg_write(gpadc->da9150, DA9150_GPADC_MAN,
>>>> + (DA9150_GPADC_EN_MASK |
>>>> + hw_chan << DA9150_GPADC_MUX_SHIFT));
>>>> +
>>>> + /* Consume left-over completion from a previous timeout */
>>>> + try_wait_for_completion(&gpadc->complete);
>>>> +
>>>> + /* Check for actual completion */
>>>> + wait_for_completion_timeout(&gpadc->complete, msecs_to_jiffies(5));
>>>> +
>>>> + /* Read result and status from device */
>>>> + da9150_bulk_read(gpadc->da9150, DA9150_GPADC_RES_A, 2, result_regs);
>>>> +
>>>> + mutex_unlock(&gpadc->lock);
>>>> +
>>>> + /* Check to make sure device really has completed reading */
>>>> + if (result_regs[1] & DA9150_GPADC_RUN_MASK) {
>>>> + dev_err(gpadc->dev, "Timeout on channel %d of GP-ADC\n",
>>>
>>> GPADC everywhere else
>>>
>>>> + hw_chan);
>>>> + return -ETIMEDOUT;
>>>> + }
>>>> +
>>>> + /* LSBs - 2 bits */
>>>> + result = (result_regs[1] & DA9150_GPADC_RES_L_MASK) >>
>>>> + DA9150_GPADC_RES_L_SHIFT;
>>>> + /* MSBs - 8 bits */
>>>> + result |= result_regs[0] << DA9150_GPADC_RES_L_BITS;
>>>
>>> can't the read be done with a 16bit read?
>>>
>>>> +
>>>> + return result;
>>>> +}
>>>> +
>>>> +static inline int da9150_gpadc_gpio_5v_voltage_now(int raw_val)
>>>> +{
>>>> + /* Convert to uV */
>>>> + return (((6 * ((raw_val * 1000) + 500)) / 1024) * 1000);
>> Base units of voltage are millivolts. See Documentation/ABI/testing/sysfs-bus-iio.
>
> Right. Ok.
>
>>>
>>> outer parenthesis not needed, here and below
>>>
>>>> +}
>>>> +
>>>> +static inline int da9150_gpadc_ibus_current_avg(int raw_val)
>>>> +{
>>>> + /* Convert to uA */
>>>> + return (((4 * ((raw_val * 1000) + 500)) / 2048) * 1000);
>> interestingly this is actually our first current channel outside staging.
>> As such the docs don't cover it. Please add, keeping inline with the
>> units used in hwmon. mA, IIRC
>
> Right, ok.
>
>>>> +}
>>>> +
>>>> +static inline int da9150_gpadc_vbus_21v_voltage_now(int raw_val)
>>>> +{
>>>> + /* Convert to uV */
>>>> + return (((21 * ((raw_val * 1000) + 500)) / 1024) * 1000);
>>>> +}
>>>> +
>>>> +static inline int da9150_gpadc_vsys_6v_voltage_now(int raw_val)
>>>> +{
>>>> + /* Convert to uV */
>>>> + return (((3 * ((raw_val * 1000) + 500)) / 512) * 1000);
>>>> +}
>>>> +
>>>> +static inline int da9150_gpadc_tjunc_temp(int raw_val)
>>>> +{
>>>> + /* Convert to 0.1 degrees C */
>>>
>>> IIO wants mille degrees C
>> Exactly. Please check all of these correspond to the base units required
>> by the documentation. Most of these might be better handled as raw
>> with scale and offset provided, letting the maths be doing in userspace using
>> floating point.
>
> Some are needed by the charger driver. The intention of adding the conversions
> here was so this knowledge was not needed in the charger driver. Seems wrong to
> move the calculations out of the IIO driver. Most of these are not simple linear
> so scale and offset will not work, unless I'm missing something.
Umm. They all appear to be simple linear conversions to me - be it written a form
that slightly obscures that fact. But I'm not that fussed if you really want to
do them in kernel.
>
>>>
>>>> + return (((879 - (1023 - raw_val)) * 10000) / 4420);
>>>> +}
>>>> +
>>>> +static inline int da9150_gpadc_vbat_voltage_now(int raw_val)
>>>> +{
>>>> + /* Convert to uV */
>>>> + return ((2932 * raw_val) + 1500000);
>>>> +}
>>>> +
>>>> +int da9150_gpadc_read_processed(struct da9150_gpadc *gpadc, int channel,
>>>> + int hw_chan)
>>>
>>> static?
>>>
>>>> +{
>>>> + int raw_val, ret;
>>>> +
>>>> + raw_val = da9150_gpadc_read_adc(gpadc, hw_chan);
>>>> + if (raw_val < 0)
>>>> + return raw_val;
>>>> +
>>>> + switch (channel) {
>>>> + case DA9150_GPADC_CHAN_GPIOA:
>>>> + case DA9150_GPADC_CHAN_GPIOB:
>>>> + case DA9150_GPADC_CHAN_GPIOC:
>>>> + case DA9150_GPADC_CHAN_GPIOD:
>>>> + ret = da9150_gpadc_gpio_5v_voltage_now(raw_val);
>>>
>>> could return directly ...
>>>
>>>> + break;
>>>> + case DA9150_GPADC_CHAN_IBUS:
>>>> + ret = da9150_gpadc_ibus_current_avg(raw_val);
>>>> + break;
>>>> + case DA9150_GPADC_CHAN_VBUS:
>>>> + ret = da9150_gpadc_vbus_21v_voltage_now(raw_val);
>>>> + break;
>>>> + case DA9150_GPADC_CHAN_VSYS:
>>>> + ret = da9150_gpadc_vsys_6v_voltage_now(raw_val);
>>>> + break;
>>>> + case DA9150_GPADC_CHAN_TJUNC_CORE:
>>>> + case DA9150_GPADC_CHAN_TJUNC_OVP:
>>>> + ret = da9150_gpadc_tjunc_temp(raw_val);
>>>> + break;
>>>> + default:
>>>> + /* No processing for other channels so return raw value */
>>>> + ret = raw_val;
>>>> + break;
>>>> + }
>>>
>>> and save the final return
>>>> +
>>>> + return ret;
>>>> +}
>>>> +
>>>> +int da9150_gpadc_read_scale(int channel)
>>>
>>> static?
>>>
>>>> +{
>>>> + int ret;
>>>> +
>>>> + switch (channel) {
>>>> + case DA9150_GPADC_CHAN_VBAT:
>>>> + ret = 2932;
>>>
>>> return directly?
>>>
>>>> + break;
>>>> + default:
>>>> + ret = -EINVAL;
>>>> + }
>>>> +
>>>> + return ret;
>>>> +}
>>>> +
>>>> +int da9150_gpadc_read_offset(int channel)
>>>> +{
>>>> + int ret;
>>>> +
>>>> + switch (channel) {
>>>> + case DA9150_GPADC_CHAN_VBAT:
>>>> + ret = 1500000 / 2932;
>>>
>>> return directly?
>>>
>>>> + break;
>>>> + default:
>>>> + ret = -EINVAL;
>>>> + }
>>>> +
>>>> + return ret;
>>>> +}
>>>> +
>>>> +int da9150_gpadc_read_raw(struct iio_dev *indio_dev,
>>>> + struct iio_chan_spec const *chan,
>>>> + int *val, int *val2, long mask)
>>>
>>> static?
>>>
>>>> +{
>>>> + struct da9150_gpadc *gpadc = iio_priv(indio_dev);
>>>> + int ret;
>>>> +
>>>> + if ((chan->channel < DA9150_GPADC_CHAN_GPIOA) ||
>>>> + (chan->channel > DA9150_GPADC_CHAN_TJUNC_OVP))
>>>> + return -EINVAL;
>>>> +
>>>> + switch (mask) {
>>>> + case IIO_CHAN_INFO_RAW:
>>>> + case IIO_CHAN_INFO_PROCESSED:
>> Would be cleaner to have each of these functions use ret for return code
>> including IIO_VAL_INT and pass val as an arguement. Would get rid
>> of the fiddly handling at the end of this function and allow direct
>> returns from each of the case statements.
>>
>> Also, are the base units of all of these channels really giving us
>> an integer result? E.g. mV, mA etc? Not impossible, but seems unlikely!
>
> Ok, I can make that change. Wouldn't say what was there now is fiddly, but am
> happy to update.
>
> In terms of base units, they are actually in V or A, rather than say mV or mA,
> according to the datasheet, but as there's no floating point support in the
> kernel the sensible option was to provide them in smaller units and provide
> greater accuracy.
No it really isn't. There is no floating point in kernel, so we simulate the
effect using the IIO_VAL types and a pair of 32bit integers. It's not ideal
but it does allow us to cover any plausible range. The reason other drivers need to
match it is that we need a clean ABI to userspace. Hence they must all be the same.
This is why we try to move the conversions into userspace where possible. It can
be done in kernel but is admittedly rather fiddly!
>
>>
>>>> + ret = da9150_gpadc_read_processed(gpadc, chan->channel,
>>>> + chan->address);
>>>> + break;
>>>> + case IIO_CHAN_INFO_SCALE:
>>>> + ret = da9150_gpadc_read_scale(chan->channel);
>>>> + break;
>>>> + case IIO_CHAN_INFO_OFFSET:
>>>> + ret = da9150_gpadc_read_offset(chan->channel);
>>>> + break;
>>>> + default:
>>>> + ret = -EINVAL;
>>>> + break;
>>>> + }
>>>> +
>>>> + if (ret < 0)
>>>> + return ret;
>>>> +
>>>> + *val = ret;
>>>> +
>>>> + return IIO_VAL_INT;
>>>> +}
>>>> +
>>>> +static const struct iio_info da9150_gpadc_info = {
>>>> + .read_raw = &da9150_gpadc_read_raw,
>>>> + .driver_module = THIS_MODULE,
>>>> +};
>>>> +
>>>> +#define GPADC_CHANNEL(_id, _hw_id, _type, chan_info, _ext_name) { \
>>>> + .type = _type, \
>>>> + .indexed = 1, \
>>>
>>> there is only one current channel, it should not be indexed
>> Optional. Either way userspace should cope fine. At one point I thought
>> about insisting everything was indexed, to reduce userspace complexity
>> (ever so slightly) but was a bit late by the time I thought of it ;)
>
> If it's ok, I will leave as is as to keep this macro common.
>
>>>
>>>> + .channel = DA9150_GPADC_CHAN_##_id, \
>>>> + .address = DA9150_GPADC_HW_CHAN_##_hw_id, \
>>>> + .info_mask_separate = chan_info, \
>>>> + .extend_name = _ext_name, \
>>>> + .datasheet_name = #_id, \
>>>> +}
>>>> +
>>>> +#define GPADC_CHANNEL_RAW(_id, _hw_id, _type, _ext_name) \
>>>> + GPADC_CHANNEL(_id, _hw_id, _type, BIT(IIO_CHAN_INFO_RAW),
>> _ext_name)
>>>> +
>>>> +#define GPADC_CHANNEL_SCALED(_id, _hw_id, _type, _ext_name) \
>>>> + GPADC_CHANNEL(_id, _hw_id, _type, \
>>>> + BIT(IIO_CHAN_INFO_RAW) | \
>>>> + BIT(IIO_CHAN_INFO_SCALE) | \
>>>> + BIT(IIO_CHAN_INFO_OFFSET), \
>>>> + _ext_name)
>>>> +
>>>> +#define GPADC_CHANNEL_PROCESSED(_id, _hw_id, _type, _ext_name)
>> \
>>>> + GPADC_CHANNEL(_id, _hw_id, _type, BIT(IIO_CHAN_INFO_PROCESSED), \
>>>> + _ext_name)
>> This macro and similar need a DA9150 prefix to avoid likely name clashes in
>> future.
>
> Fair point. Will update.
>
>>>> +
>>>> +/* Supported channels */
>>>> +static const struct iio_chan_spec da9150_gpadc_channels[] = {
>>>> + GPADC_CHANNEL_PROCESSED(GPIOA, GPIOA_5V, IIO_VOLTAGE, "GPIOA"),
>>>> + GPADC_CHANNEL_PROCESSED(GPIOB, GPIOB_5V, IIO_VOLTAGE, "GPIOB"),
>>>> + GPADC_CHANNEL_PROCESSED(GPIOC, GPIOC_5V, IIO_VOLTAGE, "GPIOC"),
>>>> + GPADC_CHANNEL_PROCESSED(GPIOD, GPIOD_5V, IIO_VOLTAGE, "GPIOD"),
>>>> + GPADC_CHANNEL_PROCESSED(IBUS, IBUS_SENSE, IIO_CURRENT, "IBUS"),
>>>> + GPADC_CHANNEL_PROCESSED(VBUS, VBUS_DIV_, IIO_VOLTAGE, "VBUS"),
>>>> + GPADC_CHANNEL_RAW(ID, ID, IIO_VOLTAGE, "ID"),
>>>> + GPADC_CHANNEL_PROCESSED(VSYS, VSYS, IIO_VOLTAGE, "VSYS"),
>>>> + GPADC_CHANNEL_SCALED(VBAT, VBAT, IIO_VOLTAGE, "VBAT"),
>>>> + GPADC_CHANNEL_RAW(TBAT, TBAT, IIO_VOLTAGE, "TBAT"),
>>>> + GPADC_CHANNEL_PROCESSED(TJUNC_CORE, TJUNC_CORE, IIO_TEMP,
>> "TJUNC_CORE"),
>>>> + GPADC_CHANNEL_PROCESSED(TJUNC_OVP, TJUNC_OVP, IIO_TEMP,
>> "TJUNC_OVP"),
>>>> +};
>>>> +
>>>> +/* Default maps used by da9150-charger */
>>>> +static struct iio_map da9150_gpadc_default_maps[] = {
>>>> + {
>>>> + .consumer_dev_name = "da9150-charger",
>>>> + .consumer_channel = "CHAN_IBUS",
>>>> + .adc_channel_label = "IBUS",
>>>> + },
>>>> + {
>>>> + .consumer_dev_name = "da9150-charger",
>>>> + .consumer_channel = "CHAN_VBUS",
>>>> + .adc_channel_label = "VBUS",
>>>> + },
>>>> + {
>>>> + .consumer_dev_name = "da9150-charger",
>>>> + .consumer_channel = "CHAN_TJUNC",
>>>> + .adc_channel_label = "TJUNC_CORE",
>>>> + },
>>>> + {
>>>> + .consumer_dev_name = "da9150-charger",
>>>> + .consumer_channel = "CHAN_VBAT",
>>>> + .adc_channel_label = "VBAT",
>>>> + },
>>>> + {},
>>>> +};
>>>> +
>>>> +static int da9150_gpadc_probe(struct platform_device *pdev)
>>>> +{
>>>> + struct device *dev = &pdev->dev;
>>>> + struct da9150 *da9150 = dev_get_drvdata(dev->parent);
>>>> + struct da9150_gpadc *gpadc;
>>>> + struct iio_dev *indio_dev;
>>>> + int ret;
>>>> +
>>>> + indio_dev = devm_iio_device_alloc(&pdev->dev,
>>>> + sizeof(struct da9150_gpadc));
>>>> + if (!indio_dev) {
>>>> + dev_err(&pdev->dev, "Failed to allocate IIO device\n");
>>>> + return -ENOMEM;
>>>> + }
>>>> + gpadc = iio_priv(indio_dev);
>>>> +
>>>> + platform_set_drvdata(pdev, indio_dev);
>>>> + gpadc->da9150 = da9150;
>>>> + gpadc->dev = dev;
>>>> +
>>>> + ret = iio_map_array_register(indio_dev, da9150_gpadc_default_maps);
>>>> + if (ret) {
>>>> + dev_err(dev, "Failed to register IIO maps: %d\n", ret);
>>>> + goto iio_map_fail;
>>>
>>> just return here?
>>>
>>>> + }
>>>> +
>>>> + mutex_init(&gpadc->lock);
>>>> + init_completion(&gpadc->complete);
>>>> +
>>>> + /* Register IRQ */
>>>> + ret = da9150_register_irq(pdev, gpadc, da9150_gpadc_irq, "GPADC");
>> This function wants renaming to indicate that it is doing a managed
>> irq request... devm_da9150 etc would be conventional ;)
>
> Yep, it's a good point. Will update.
>
>>>> + if (ret < 0)
>>>> + goto irq_fail;
>>>> +
>>>> + indio_dev->name = dev_name(dev);
>>>> + indio_dev->dev.parent = dev;
>>>> + indio_dev->dev.of_node = pdev->dev.of_node;
>>>> + indio_dev->info = &da9150_gpadc_info;
>>>> + indio_dev->modes = INDIO_DIRECT_MODE;
>>>> + indio_dev->channels = da9150_gpadc_channels;
>>>> + indio_dev->num_channels = ARRAY_SIZE(da9150_gpadc_channels);
>>>> +
>>>> + ret = iio_device_register(indio_dev);
>>>> + if (ret) {
>>>> + dev_err(dev, "Failed to register IIO device: %d\n", ret);
>>>> + goto iio_dev_fail;
>>>> + }
>>>> +
>>>> + return ret;
>>>> +
>>>> +iio_dev_fail:
>>>> +irq_fail:
>>>
>>> why two labels?
>>>
>>>> + iio_map_array_unregister(indio_dev);
>>>> +
>>>> +iio_map_fail:
>>>> + return ret;
>>>> +}
>>>> +
>>>> +static int da9150_gpadc_remove(struct platform_device *pdev)
>>>> +{
>>>> + struct iio_dev *indio_dev = platform_get_drvdata(pdev);
>>>> +
>>>> + iio_map_array_unregister(indio_dev);
>>>
>>> unregister irq?
>> Not actually needed as it was a devm register - having said that
>> the function should indicate that it's naming.
>
> Agreed.
>
>>>
>>>> + iio_device_unregister(indio_dev);
>>>> +
>>>> + return 0;
>>>> +}
>>>> +
>>>> +static struct platform_driver da9150_gpadc_driver = {
>>>> + .driver = {
>>>> + .name = "da9150-gpadc",
>>>> + .owner = THIS_MODULE,
>>>> + },
>>>> + .probe = da9150_gpadc_probe,
>>>> + .remove = da9150_gpadc_remove,
>>>> +};
>>>> +
>>>> +module_platform_driver(da9150_gpadc_driver);
>>>> +
>>>> +MODULE_DESCRIPTION("GPADC Driver for DA9150");
>>>> +MODULE_AUTHOR("Adam Thomson
>> <Adam.Thomson.Opensource@diasemi.com");
>>>> +MODULE_LICENSE("GPL");
>>>> --
>>>> 1.9.3
>>>>
>>>> --
>>>> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
>>>> the body of a message to majordomo@vger.kernel.org
>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>> Please read the FAQ at http://www.tux.org/lkml/
>>>>
>>>
^ permalink raw reply [flat|nested] 25+ messages in thread* RE: [PATCH v2 3/7] iio: Add support for DA9150 GPADC
2014-09-14 17:26 ` Jonathan Cameron
@ 2014-09-15 10:32 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 25+ messages in thread
From: Opensource [Adam Thomson] @ 2014-09-15 10:32 UTC (permalink / raw)
To: Jonathan Cameron, Opensource [Adam Thomson], Peter Meerwald
Cc: Lee Jones, linux-iio@vger.kernel.org, Support Opensource
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^ permalink raw reply [flat|nested] 25+ messages in thread
* RE: [PATCH v2 3/7] iio: Add support for DA9150 GPADC
2014-08-28 11:28 ` Peter Meerwald
2014-08-30 20:01 ` Jonathan Cameron
@ 2014-09-09 10:51 ` Opensource [Adam Thomson]
1 sibling, 0 replies; 25+ messages in thread
From: Opensource [Adam Thomson] @ 2014-09-09 10:51 UTC (permalink / raw)
To: Peter Meerwald, Opensource [Adam Thomson]
Cc: Lee Jones, Jonathan Cameron, linux-iio@vger.kernel.org,
Support Opensource
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MF9ncGFkY19wcm9iZSwNCj4gPiArCS5yZW1vdmUgPSBkYTkxNTBfZ3BhZGNfcmVtb3ZlLA0KPiA+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LTI0NDQ0MTggKG1vYmlsZSkNCg==
^ permalink raw reply [flat|nested] 25+ messages in thread
* [PATCH v2 4/7] iio: da9150: Add DT binding documentation for GPADC
2014-08-28 10:48 [PATCH v2 0/7] Add initial support for DA9150 Charger & Fuel-Gauge IC Adam Thomson
` (2 preceding siblings ...)
2014-08-28 10:48 ` [PATCH v2 3/7] iio: Add support for DA9150 GPADC Adam Thomson
@ 2014-08-28 10:49 ` Adam Thomson
2014-08-28 10:49 ` [PATCH v2 5/7] power: Add support for DA9150 Charger Adam Thomson
` (2 subsequent siblings)
6 siblings, 0 replies; 25+ messages in thread
From: Adam Thomson @ 2014-08-28 10:49 UTC (permalink / raw)
To: Lee Jones, Samuel Ortiz, Jonathan Cameron, linux-iio,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala, devicetree, Andrew Morton, Joe Perches
Cc: linux-kernel, support.opensource
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
.../devicetree/bindings/iio/adc/da9150-gpadc.txt | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt
diff --git a/Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt b/Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt
new file mode 100644
index 0000000..c07228d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt
@@ -0,0 +1,16 @@
+Dialog Semiconductor DA9150 IIO GPADC bindings
+
+Required properties:
+- compatible: "dlg,da9150-gpadc" for DA9150 IIO GPADC
+- #io-channel-cells: Should be set to <1>
+ (See Documentation/devicetree/bindings/iio/iio-bindings.txt for further info)
+
+For further information on GPADC channels, see device datasheet.
+
+
+Example:
+
+ gpadc: da9150-gpadc {
+ compatible = "dlg,da9150-gpadc";
+ #io-channel-cells = <1>;
+ };
--
1.9.3
^ permalink raw reply related [flat|nested] 25+ messages in thread* [PATCH v2 5/7] power: Add support for DA9150 Charger
2014-08-28 10:48 [PATCH v2 0/7] Add initial support for DA9150 Charger & Fuel-Gauge IC Adam Thomson
` (3 preceding siblings ...)
2014-08-28 10:49 ` [PATCH v2 4/7] iio: da9150: Add DT binding documentation for GPADC Adam Thomson
@ 2014-08-28 10:49 ` Adam Thomson
2014-08-28 10:49 ` [PATCH v2 6/7] power: da9150: Add DT binding documentation for charger Adam Thomson
2014-08-28 10:49 ` [PATCH v2 7/7] MAINTAINERS: Include DA9150 files in Dialog Semiconductor support list Adam Thomson
6 siblings, 0 replies; 25+ messages in thread
From: Adam Thomson @ 2014-08-28 10:49 UTC (permalink / raw)
To: Lee Jones, Samuel Ortiz, Jonathan Cameron, linux-iio,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala, devicetree, Andrew Morton, Joe Perches
Cc: linux-kernel, support.opensource
This patch adds support for DA9150 Charger & Fuel-Guage IC Charger.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/power/Kconfig | 12 +
drivers/power/Makefile | 1 +
drivers/power/da9150-charger.c | 715 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 728 insertions(+)
create mode 100644 drivers/power/da9150-charger.c
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 73cfcdf..622884d 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -192,6 +192,18 @@ config BATTERY_DA9052
Say Y here to enable support for batteries charger integrated into
DA9052 PMIC.
+config CHARGER_DA9150
+ tristate "Dialog Semiconductor DA9150 Charger support"
+ depends on MFD_DA9150
+ depends on DA9150_GPADC
+ depends on IIO
+ help
+ Say Y here to enable support for charger unit of the DA9150
+ Integrated Charger & Fuel-Gauge IC.
+
+ This driver can also be built as a module. If so, the module will be
+ called da9150-charger.
+
config BATTERY_MAX17040
tristate "Maxim MAX17040 Fuel Gauge"
depends on I2C
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index dfa8942..0c1896d 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_BATTERY_SBS) += sbs-battery.o
obj-$(CONFIG_BATTERY_BQ27x00) += bq27x00_battery.o
obj-$(CONFIG_BATTERY_DA9030) += da9030_battery.o
obj-$(CONFIG_BATTERY_DA9052) += da9052-battery.o
+obj-$(CONFIG_CHARGER_DA9150) += da9150-charger.o
obj-$(CONFIG_BATTERY_MAX17040) += max17040_battery.o
obj-$(CONFIG_BATTERY_MAX17042) += max17042_battery.o
obj-$(CONFIG_BATTERY_Z2) += z2_battery.o
diff --git a/drivers/power/da9150-charger.c b/drivers/power/da9150-charger.c
new file mode 100644
index 0000000..391ad19c
--- /dev/null
+++ b/drivers/power/da9150-charger.c
@@ -0,0 +1,715 @@
+/*
+ * DA9150 Charger Driver
+ *
+ * Copyright (c) 2014 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/interrupt.h>
+#include <linux/timer.h>
+#include <linux/power_supply.h>
+#include <linux/notifier.h>
+#include <linux/usb/phy.h>
+#include <linux/iio/consumer.h>
+#include <linux/sysfs.h>
+
+#include <linux/mfd/da9150/core.h>
+#include <linux/mfd/da9150/pdata.h>
+#include <linux/mfd/da9150/registers.h>
+
+/* Private data */
+struct da9150_charger_attr_map {
+ struct device_attribute attr;
+ u16 reg;
+ u8 shift;
+ u8 mask;
+};
+
+struct da9150_charger {
+ struct da9150 *da9150;
+ struct device *dev;
+
+ struct power_supply usb;
+ struct power_supply battery;
+ struct power_supply *supply_online;
+
+ struct usb_phy *usb_phy;
+ struct notifier_block otg_nb;
+ struct work_struct otg_work;
+ unsigned long usb_event;
+
+ struct iio_channel *ibus_chan;
+ struct iio_channel *vbus_chan;
+ struct iio_channel *tjunc_chan;
+ struct iio_channel *vbat_chan;
+};
+
+static inline int da9150_charger_supply_online(struct da9150_charger *charger,
+ struct power_supply *psy,
+ union power_supply_propval *val)
+{
+ val->intval = (psy == charger->supply_online) ? 1 : 0;
+
+ return 0;
+}
+
+/* Charger Properties */
+static int da9150_charger_vbus_voltage_now(struct da9150_charger *charger,
+ union power_supply_propval *val)
+{
+ struct iio_channel *chan = charger->vbus_chan;
+
+ if (!chan)
+ return -EINVAL;
+
+ /* Read processed value - uV units */
+ return iio_read_channel_processed(chan, &val->intval);
+}
+
+static int da9150_charger_ibus_current_avg(struct da9150_charger *charger,
+ union power_supply_propval *val)
+{
+ struct iio_channel *chan = charger->ibus_chan;
+
+ if (!chan)
+ return -EINVAL;
+
+ /* Read processed value - uA degrees C units */
+ return iio_read_channel_processed(chan, &val->intval);
+}
+
+static int da9150_charger_tjunc_temp(struct da9150_charger *charger,
+ union power_supply_propval *val)
+{
+ struct iio_channel *chan = charger->tjunc_chan;
+
+ if (!chan)
+ return -EINVAL;
+
+ /* Read processed value - 0.1 degrees C units */
+ return iio_read_channel_processed(chan, &val->intval);
+}
+
+static enum power_supply_property da9150_charger_props[] = {
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_AVG,
+ POWER_SUPPLY_PROP_TEMP,
+};
+
+static int da9150_charger_get_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct da9150_charger *charger = dev_get_drvdata(psy->dev->parent);
+ int ret;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ ret = da9150_charger_supply_online(charger, psy, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ ret = da9150_charger_vbus_voltage_now(charger, val);
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_AVG:
+ ret = da9150_charger_ibus_current_avg(charger, val);
+ break;
+ case POWER_SUPPLY_PROP_TEMP:
+ ret = da9150_charger_tjunc_temp(charger, val);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+/* Battery Properties */
+static int da9150_charger_battery_status(struct da9150_charger *charger,
+ union power_supply_propval *val)
+{
+ u8 reg;
+
+ /* Check to see if battery is discharging */
+ reg = da9150_reg_read(charger->da9150, DA9150_STATUS_H);
+
+ if (((reg & DA9150_VBUS_STAT_MASK) == DA9150_VBUS_STAT_OFF) ||
+ ((reg & DA9150_VBUS_STAT_MASK) == DA9150_VBUS_STAT_WAIT)) {
+ val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+
+ return 0;
+ }
+
+ reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J);
+
+ /* Now check for other states */
+ switch (reg & DA9150_CHG_STAT_MASK) {
+ case DA9150_CHG_STAT_ACT:
+ case DA9150_CHG_STAT_PRE:
+ case DA9150_CHG_STAT_CC:
+ case DA9150_CHG_STAT_CV:
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ break;
+ case DA9150_CHG_STAT_OFF:
+ case DA9150_CHG_STAT_SUSP:
+ case DA9150_CHG_STAT_TEMP:
+ case DA9150_CHG_STAT_TIME:
+ case DA9150_CHG_STAT_BAT:
+ val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ break;
+ case DA9150_CHG_STAT_FULL:
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ break;
+ default:
+ val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
+ break;
+ }
+
+ return 0;
+}
+
+static int da9150_charger_battery_health(struct da9150_charger *charger,
+ union power_supply_propval *val)
+{
+ u8 reg;
+
+ reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J);
+
+ /* Check if temperature limit reached */
+ switch (reg & DA9150_CHG_TEMP_MASK) {
+ case DA9150_CHG_TEMP_UNDER:
+ val->intval = POWER_SUPPLY_HEALTH_COLD;
+ return 0;
+ case DA9150_CHG_TEMP_OVER:
+ val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
+ return 0;
+ default:
+ break;
+ }
+
+ /* Check for other health states */
+ switch (reg & DA9150_CHG_STAT_MASK) {
+ case DA9150_CHG_STAT_ACT:
+ case DA9150_CHG_STAT_PRE:
+ val->intval = POWER_SUPPLY_HEALTH_DEAD;
+ break;
+ case DA9150_CHG_STAT_TIME:
+ val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
+ break;
+ default:
+ val->intval = POWER_SUPPLY_HEALTH_GOOD;
+ break;
+ }
+
+ return 0;
+}
+
+static int da9150_charger_battery_present(struct da9150_charger *charger,
+ union power_supply_propval *val)
+{
+ u8 reg;
+
+ /* Check if battery present or removed */
+ reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J);
+ if ((reg & DA9150_CHG_STAT_MASK) == DA9150_CHG_STAT_BAT)
+ val->intval = 0;
+ else
+ val->intval = 1;
+
+ return 0;
+}
+
+static int da9150_charger_battery_charge_type(struct da9150_charger *charger,
+ union power_supply_propval *val)
+{
+ u8 reg;
+
+ reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J);
+
+ switch (reg & DA9150_CHG_STAT_MASK) {
+ case DA9150_CHG_STAT_CC:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST;
+ break;
+ case DA9150_CHG_STAT_ACT:
+ case DA9150_CHG_STAT_PRE:
+ case DA9150_CHG_STAT_CV:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
+ break;
+ default:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE;
+ break;
+ }
+
+ return 0;
+}
+
+static int da9150_charger_battery_voltage_min(struct da9150_charger *charger,
+ union power_supply_propval *val)
+{
+ u8 reg;
+
+ reg = da9150_reg_read(charger->da9150, DA9150_PPR_CHGCTRL_C);
+
+ /* Value starts at 2500 mV, 50 mV increments, presented in uV */
+ val->intval = ((reg & DA9150_CHG_VFAULT_MASK) * 50000) + 2500000;
+
+ return 0;
+}
+
+static int da9150_charger_battery_voltage_now(struct da9150_charger *charger,
+ union power_supply_propval *val)
+{
+ struct iio_channel *chan = charger->vbat_chan;
+
+ if (!chan)
+ return -EINVAL;
+
+ /* Read processed value - uV units */
+ return iio_read_channel_processed(chan, &val->intval);
+}
+
+static int da9150_charger_battery_current_max(struct da9150_charger *charger,
+ union power_supply_propval *val)
+{
+ int reg;
+
+ reg = da9150_reg_read(charger->da9150, DA9150_PPR_CHGCTRL_D);
+
+ /* 25mA increments */
+ val->intval = reg * 25000;
+
+ return 0;
+}
+
+static int da9150_charger_battery_voltage_max(struct da9150_charger *charger,
+ union power_supply_propval *val)
+{
+ u8 reg;
+
+ reg = da9150_reg_read(charger->da9150, DA9150_PPR_CHGCTRL_B);
+
+ /* Value starts at 3650 mV, 25 mV increments, presented in uV */
+ val->intval = ((reg & DA9150_CHG_VBAT_MASK) * 25000) + 3650000;
+ return 0;
+}
+
+static enum power_supply_property da9150_charger_bat_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_HEALTH,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_CHARGE_TYPE,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
+};
+
+static int da9150_charger_battery_get_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct da9150_charger *charger = dev_get_drvdata(psy->dev->parent);
+ int ret;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ ret = da9150_charger_battery_status(charger, val);
+ break;
+ case POWER_SUPPLY_PROP_ONLINE:
+ ret = da9150_charger_supply_online(charger, psy, val);
+ break;
+ case POWER_SUPPLY_PROP_HEALTH:
+ ret = da9150_charger_battery_health(charger, val);
+ break;
+ case POWER_SUPPLY_PROP_PRESENT:
+ ret = da9150_charger_battery_present(charger, val);
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_TYPE:
+ ret = da9150_charger_battery_charge_type(charger, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+ ret = da9150_charger_battery_voltage_min(charger, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ ret = da9150_charger_battery_voltage_now(charger, val);
+ break;
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
+ ret = da9150_charger_battery_current_max(charger, val);
+ break;
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
+ ret = da9150_charger_battery_voltage_max(charger, val);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+/* Other properties */
+static ssize_t da9150_charger_attr_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf);
+
+#define DA9150_CHARGER_ATTR(_name, _reg, _shift, _mask) \
+ { \
+ .attr = __ATTR(_name, S_IRUGO, \
+ da9150_charger_attr_show, \
+ NULL), \
+ .reg = _reg, \
+ .shift = _shift, \
+ .mask = _mask, \
+ }
+
+static struct da9150_charger_attr_map da9150_charger_attrs[] = {
+ DA9150_CHARGER_ATTR(chg_en, DA9150_PPR_CHGCTRL_A,
+ DA9150_CHG_EN_SHIFT, DA9150_CHG_EN_MASK),
+ DA9150_CHARGER_ATTR(chg_ipre, DA9150_PPR_CHGCTRL_C,
+ DA9150_CHG_IPRE_SHIFT, DA9150_CHG_IPRE_MASK),
+ DA9150_CHARGER_ATTR(chg_iend, DA9150_PPR_CHGCTRL_E,
+ DA9150_CHG_IEND_SHIFT, DA9150_CHG_IEND_MASK),
+ DA9150_CHARGER_ATTR(chg_temp, DA9150_STATUS_J,
+ DA9150_CHG_TEMP_SHIFT, DA9150_CHG_TEMP_MASK),
+ DA9150_CHARGER_ATTR(chg_vdrop, DA9150_PPR_CHGCTRL_B,
+ DA9150_CHG_VDROP_SHIFT, DA9150_CHG_VDROP_MASK),
+ DA9150_CHARGER_ATTR(tbat_upper, DA9150_PPR_THYST_E,
+ DA9150_TBAT_T5_SHIFT, DA9150_TBAT_T5_MASK),
+ DA9150_CHARGER_ATTR(tbat_lower, DA9150_PPR_THYST_A,
+ DA9150_TBAT_T1_SHIFT, DA9150_TBAT_T1_MASK),
+ DA9150_CHARGER_ATTR(vbus_mode, DA9150_PPR_BKCTRL_A,
+ DA9150_VBUS_MODE_SHIFT, DA9150_VBUS_MODE_MASK),
+ DA9150_CHARGER_ATTR(vbus_tred, DA9150_STATUS_H,
+ DA9150_VBUS_TRED_SHIFT, DA9150_VBUS_TRED_MASK),
+ DA9150_CHARGER_ATTR(vbus_drop_stat, DA9150_STATUS_H,
+ DA9150_VBUS_DROP_STAT_SHIFT,
+ DA9150_VBUS_DROP_STAT_MASK),
+};
+
+static ssize_t da9150_charger_attr_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct da9150_charger *charger = dev_get_drvdata(dev);
+ struct da9150_charger_attr_map *charger_attrs;
+ int i;
+
+ /* Find attribute, and print out register field contents. */
+ for (i = 0, charger_attrs = da9150_charger_attrs;
+ i < ARRAY_SIZE(da9150_charger_attrs);
+ ++i, ++charger_attrs) {
+ if (attr == &charger_attrs->attr) {
+ u8 val;
+
+ val = da9150_reg_read(charger->da9150,
+ charger_attrs->reg);
+ val &= charger_attrs->mask;
+ val = val >> charger_attrs->shift;
+
+ return sprintf(buf, "0x%x\n", val);
+ }
+ }
+
+ return 0;
+}
+
+static irqreturn_t da9150_charger_chg_irq(int irq, void *data)
+{
+ struct da9150_charger *charger = data;
+
+ power_supply_changed(&charger->battery);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t da9150_charger_tjunc_irq(int irq, void *data)
+{
+ struct da9150_charger *charger = data;
+
+ /* Nothing we can really do except report this. */
+ dev_crit(charger->dev, "TJunc over temperature!!!\n");
+ power_supply_changed(&charger->usb);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t da9150_charger_vfault_irq(int irq, void *data)
+{
+ struct da9150_charger *charger = data;
+
+ /* Nothing we can really do except report this. */
+ dev_crit(charger->dev, "VSYS under voltage!!!\n");
+ power_supply_changed(&charger->usb);
+ power_supply_changed(&charger->battery);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t da9150_charger_vbus_irq(int irq, void *data)
+{
+ struct da9150_charger *charger = data;
+ u8 reg;
+
+ reg = da9150_reg_read(charger->da9150, DA9150_STATUS_H);
+
+ /* Charger plugged in or battery only */
+ switch (reg & DA9150_VBUS_STAT_MASK) {
+ case DA9150_VBUS_STAT_OFF:
+ case DA9150_VBUS_STAT_WAIT:
+ charger->supply_online = &charger->battery;
+ break;
+ case DA9150_VBUS_STAT_CHG:
+ charger->supply_online = &charger->usb;
+ break;
+ default:
+ dev_warn(charger->dev, "Unknown VBUS state - reg = 0x%x\n",
+ reg);
+ charger->supply_online = NULL;
+ break;
+ }
+
+ power_supply_changed(&charger->usb);
+ power_supply_changed(&charger->battery);
+
+ return IRQ_HANDLED;
+}
+
+static void da9150_charger_otg_work(struct work_struct *data)
+{
+ struct da9150_charger *charger =
+ container_of(data, struct da9150_charger, otg_work);
+
+ switch (charger->usb_event) {
+ case USB_EVENT_ID:
+ /* Enable OTG Boost */
+ da9150_set_bits(charger->da9150, DA9150_PPR_BKCTRL_A,
+ DA9150_VBUS_MODE_MASK, DA9150_VBUS_MODE_OTG);
+ break;
+ case USB_EVENT_NONE:
+ /* Revert to charge mode */
+ power_supply_changed(&charger->usb);
+ power_supply_changed(&charger->battery);
+ da9150_set_bits(charger->da9150, DA9150_PPR_BKCTRL_A,
+ DA9150_VBUS_MODE_MASK, DA9150_VBUS_MODE_CHG);
+ break;
+ }
+}
+
+static int da9150_charger_otg_ncb(struct notifier_block *nb, unsigned long val,
+ void *priv)
+{
+ struct da9150_charger *charger =
+ container_of(nb, struct da9150_charger, otg_nb);
+
+ dev_dbg(charger->dev, "DA9150 OTG notify %lu\n", val);
+
+ charger->usb_event = val;
+ schedule_work(&charger->otg_work);
+
+ return NOTIFY_OK;
+}
+
+static int da9150_charger_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct da9150 *da9150 = dev_get_drvdata(dev->parent);
+ struct da9150_charger *charger;
+ struct power_supply *usb, *battery;
+ u8 reg;
+ int i, ret;
+
+ charger = devm_kzalloc(dev, sizeof(struct da9150_charger), GFP_KERNEL);
+ if (charger == NULL)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, charger);
+ charger->da9150 = da9150;
+ charger->dev = dev;
+
+ /* Acquire ADC channels */
+ charger->ibus_chan = iio_channel_get(dev, "CHAN_IBUS");
+ if (IS_ERR(charger->ibus_chan)) {
+ ret = PTR_ERR(charger->ibus_chan);
+ goto ibus_chan_fail;
+ }
+
+ charger->vbus_chan = iio_channel_get(dev, "CHAN_VBUS");
+ if (IS_ERR(charger->vbus_chan)) {
+ ret = PTR_ERR(charger->vbus_chan);
+ goto vbus_chan_fail;
+ }
+
+ charger->tjunc_chan = iio_channel_get(dev, "CHAN_TJUNC");
+ if (IS_ERR(charger->tjunc_chan)) {
+ ret = PTR_ERR(charger->tjunc_chan);
+ goto tjunc_chan_fail;
+ }
+
+ charger->vbat_chan = iio_channel_get(dev, "CHAN_VBAT");
+ if (IS_ERR(charger->vbat_chan)) {
+ ret = PTR_ERR(charger->vbat_chan);
+ goto vbat_chan_fail;
+ }
+
+ /* Register power supplies */
+ usb = &charger->usb;
+ battery = &charger->battery;
+
+ usb->name = "da9150-usb",
+ usb->type = POWER_SUPPLY_TYPE_USB;
+ usb->properties = da9150_charger_props;
+ usb->num_properties = ARRAY_SIZE(da9150_charger_props);
+ usb->get_property = da9150_charger_get_prop;
+ ret = power_supply_register(dev, usb);
+ if (ret)
+ goto usb_fail;
+
+ battery->name = "da9150-battery";
+ battery->type = POWER_SUPPLY_TYPE_BATTERY;
+ battery->properties = da9150_charger_bat_props;
+ battery->num_properties = ARRAY_SIZE(da9150_charger_bat_props);
+ battery->get_property = da9150_charger_battery_get_prop;
+ ret = power_supply_register(dev, battery);
+ if (ret)
+ goto battery_fail;
+
+ /* Create additional sysfs attributes */
+ for (i = 0; i < ARRAY_SIZE(da9150_charger_attrs); ++i) {
+ ret = device_create_file(dev, &da9150_charger_attrs[i].attr);
+ if (ret < 0)
+ goto sysfs_fail;
+ }
+
+ /* Get initial online supply */
+ reg = da9150_reg_read(da9150, DA9150_STATUS_H);
+
+ /* Charger plugged in or battery only */
+ switch (reg & DA9150_VBUS_STAT_MASK) {
+ case DA9150_VBUS_STAT_OFF:
+ case DA9150_VBUS_STAT_WAIT:
+ charger->supply_online = &charger->battery;
+ break;
+ case DA9150_VBUS_STAT_CHG:
+ charger->supply_online = &charger->usb;
+ break;
+ default:
+ dev_warn(dev, "Unknown VBUS state - reg = 0x%x\n", reg);
+ charger->supply_online = NULL;
+ break;
+ }
+
+ /* Setup OTG reporting & configuration */
+ charger->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+ if (!IS_ERR_OR_NULL(charger->usb_phy)) {
+ INIT_WORK(&charger->otg_work, da9150_charger_otg_work);
+ charger->otg_nb.notifier_call = da9150_charger_otg_ncb;
+ usb_register_notifier(charger->usb_phy, &charger->otg_nb);
+ }
+
+ /* Register IRQs */
+ ret = da9150_register_irq(pdev, charger, da9150_charger_chg_irq,
+ "CHG_STATUS");
+ if (ret < 0)
+ goto irq_fail;
+
+ ret = da9150_register_irq(pdev, charger, da9150_charger_tjunc_irq,
+ "CHG_TJUNC");
+ if (ret < 0)
+ goto irq_fail;
+
+ ret = da9150_register_irq(pdev, charger, da9150_charger_vfault_irq,
+ "CHG_VFAULT");
+ if (ret < 0)
+ goto irq_fail;
+
+ ret = da9150_register_irq(pdev, charger, da9150_charger_vbus_irq,
+ "CHG_VBUS");
+ if (ret < 0)
+ goto irq_fail;
+
+ return 0;
+
+irq_fail:
+ if (!IS_ERR_OR_NULL(charger->usb_phy))
+ usb_unregister_notifier(charger->usb_phy, &charger->otg_nb);
+sysfs_fail:
+ while (--i >= 0)
+ device_remove_file(&pdev->dev, &da9150_charger_attrs[i].attr);
+ power_supply_unregister(battery);
+
+battery_fail:
+ power_supply_unregister(usb);
+
+usb_fail:
+ iio_channel_release(charger->vbat_chan);
+
+vbat_chan_fail:
+ iio_channel_release(charger->tjunc_chan);
+
+tjunc_chan_fail:
+ iio_channel_release(charger->vbus_chan);
+
+vbus_chan_fail:
+ iio_channel_release(charger->ibus_chan);
+
+ibus_chan_fail:
+ return ret;
+}
+
+static int da9150_charger_remove(struct platform_device *pdev)
+{
+ struct da9150_charger *charger = platform_get_drvdata(pdev);
+ int i;
+
+ /* Make sure IRQs are released before unregistering power supplies */
+ da9150_release_irq(pdev, charger, "CHG_VBUS");
+ da9150_release_irq(pdev, charger, "CHG_VFAULT");
+ da9150_release_irq(pdev, charger, "CHG_TJUNC");
+ da9150_release_irq(pdev, charger, "CHG_STATUS");
+
+ if (!IS_ERR_OR_NULL(charger->usb_phy))
+ usb_unregister_notifier(charger->usb_phy, &charger->otg_nb);
+
+ power_supply_unregister(&charger->battery);
+ power_supply_unregister(&charger->usb);
+
+ for (i = 0; i < ARRAY_SIZE(da9150_charger_attrs); ++i)
+ device_remove_file(&pdev->dev, &da9150_charger_attrs[i].attr);
+
+ /* Release ADC channels */
+ iio_channel_release(charger->ibus_chan);
+ iio_channel_release(charger->vbus_chan);
+ iio_channel_release(charger->tjunc_chan);
+ iio_channel_release(charger->vbat_chan);
+
+ return 0;
+}
+
+static struct platform_driver da9150_charger_driver = {
+ .driver = {
+ .name = "da9150-charger",
+ .owner = THIS_MODULE,
+ },
+ .probe = da9150_charger_probe,
+ .remove = da9150_charger_remove,
+};
+
+module_platform_driver(da9150_charger_driver);
+
+MODULE_DESCRIPTION("Charger Driver for DA9150");
+MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com");
+MODULE_LICENSE("GPL");
--
1.9.3
^ permalink raw reply related [flat|nested] 25+ messages in thread* [PATCH v2 6/7] power: da9150: Add DT binding documentation for charger
2014-08-28 10:48 [PATCH v2 0/7] Add initial support for DA9150 Charger & Fuel-Gauge IC Adam Thomson
` (4 preceding siblings ...)
2014-08-28 10:49 ` [PATCH v2 5/7] power: Add support for DA9150 Charger Adam Thomson
@ 2014-08-28 10:49 ` Adam Thomson
2014-08-28 10:49 ` [PATCH v2 7/7] MAINTAINERS: Include DA9150 files in Dialog Semiconductor support list Adam Thomson
6 siblings, 0 replies; 25+ messages in thread
From: Adam Thomson @ 2014-08-28 10:49 UTC (permalink / raw)
To: Lee Jones, Samuel Ortiz, Jonathan Cameron, linux-iio,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala, devicetree, Andrew Morton, Joe Perches
Cc: linux-kernel, support.opensource
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
.../devicetree/bindings/power/da9150-charger.txt | 26 ++++++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/da9150-charger.txt
diff --git a/Documentation/devicetree/bindings/power/da9150-charger.txt b/Documentation/devicetree/bindings/power/da9150-charger.txt
new file mode 100644
index 0000000..f390666
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/da9150-charger.txt
@@ -0,0 +1,26 @@
+Dialog Semiconductor DA9150 Charger Power Supply bindings
+
+Required properties:
+- compatible: "dlg,da9150-charger" for DA9150 Charger Power Supply
+
+Optional properties:
+- io-channels: List of phandle and IIO specifier pairs
+- io-channel-names: List of channel names used by charger
+ ["CHAN_IBUS", "CHAN_VBUS", "CHAN_TJUNC", "CHAN_VBAT"]
+ (See Documentation/devicetree/bindings/iio/iio-bindings.txt for further info)
+
+
+Example:
+
+ da9150-charger {
+ compatible = "dlg,da9150-charger";
+
+ io-channels = <&gpadc 0>,
+ <&gpadc 2>,
+ <&gpadc 8>,
+ <&gpadc 5>;
+ io-channel-names = "CHAN_IBUS",
+ "CHAN_VBUS",
+ "CHAN_TJUNC",
+ "CHAN_VBAT";
+ };
--
1.9.3
^ permalink raw reply related [flat|nested] 25+ messages in thread* [PATCH v2 7/7] MAINTAINERS: Include DA9150 files in Dialog Semiconductor support list.
2014-08-28 10:48 [PATCH v2 0/7] Add initial support for DA9150 Charger & Fuel-Gauge IC Adam Thomson
` (5 preceding siblings ...)
2014-08-28 10:49 ` [PATCH v2 6/7] power: da9150: Add DT binding documentation for charger Adam Thomson
@ 2014-08-28 10:49 ` Adam Thomson
2014-08-28 11:17 ` Lee Jones
6 siblings, 1 reply; 25+ messages in thread
From: Adam Thomson @ 2014-08-28 10:49 UTC (permalink / raw)
To: Lee Jones, Samuel Ortiz, Jonathan Cameron, linux-iio,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse,
linux-pm, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala, devicetree, Andrew Morton, Joe Perches
Cc: linux-kernel, support.opensource
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
MAINTAINERS | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index aefa948..6dc0aee 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2883,12 +2883,15 @@ S: Supported
F: Documentation/hwmon/da90??
F: drivers/gpio/gpio-da90??.c
F: drivers/hwmon/da90??-hwmon.c
+F: drivers/iio/adc/da91??-*.c
F: drivers/input/misc/da90??_onkey.c
F: drivers/input/touchscreen/da9052_tsi.c
F: drivers/leds/leds-da90??.c
F: drivers/mfd/da903x.c
F: drivers/mfd/da90??-*.c
+F: drivers/mfd/da91??-*.c
F: drivers/power/da9052-battery.c
+F: drivers/power/da91??-*.c
F: drivers/regulator/da903x.c
F: drivers/regulator/da9???-regulator.[ch]
F: drivers/rtc/rtc-da90??.c
@@ -2898,6 +2901,7 @@ F: include/linux/mfd/da903x.h
F: include/linux/mfd/da9052/
F: include/linux/mfd/da9055/
F: include/linux/mfd/da9063/
+F: include/linux/mfd/da9150/
F: include/sound/da[79]*.h
F: sound/soc/codecs/da[79]*.[ch]
--
1.9.3
^ permalink raw reply related [flat|nested] 25+ messages in thread* Re: [PATCH v2 7/7] MAINTAINERS: Include DA9150 files in Dialog Semiconductor support list.
2014-08-28 10:49 ` [PATCH v2 7/7] MAINTAINERS: Include DA9150 files in Dialog Semiconductor support list Adam Thomson
@ 2014-08-28 11:17 ` Lee Jones
0 siblings, 0 replies; 25+ messages in thread
From: Lee Jones @ 2014-08-28 11:17 UTC (permalink / raw)
To: Adam Thomson
Cc: Samuel Ortiz, Jonathan Cameron, linux-iio, Sebastian Reichel,
Dmitry Eremin-Solenikov, David Woodhouse, linux-pm, Rob Herring,
Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, devicetree,
Andrew Morton, Joe Perches, linux-kernel, support.opensource
On Thu, 28 Aug 2014, Adam Thomson wrote:
> Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
> ---
> MAINTAINERS | 4 ++++
> 1 file changed, 4 insertions(+)
Acked-by: Lee Jones <lee.jones@linaro.org>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index aefa948..6dc0aee 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -2883,12 +2883,15 @@ S: Supported
> F: Documentation/hwmon/da90??
> F: drivers/gpio/gpio-da90??.c
> F: drivers/hwmon/da90??-hwmon.c
> +F: drivers/iio/adc/da91??-*.c
> F: drivers/input/misc/da90??_onkey.c
> F: drivers/input/touchscreen/da9052_tsi.c
> F: drivers/leds/leds-da90??.c
> F: drivers/mfd/da903x.c
> F: drivers/mfd/da90??-*.c
> +F: drivers/mfd/da91??-*.c
> F: drivers/power/da9052-battery.c
> +F: drivers/power/da91??-*.c
> F: drivers/regulator/da903x.c
> F: drivers/regulator/da9???-regulator.[ch]
> F: drivers/rtc/rtc-da90??.c
> @@ -2898,6 +2901,7 @@ F: include/linux/mfd/da903x.h
> F: include/linux/mfd/da9052/
> F: include/linux/mfd/da9055/
> F: include/linux/mfd/da9063/
> +F: include/linux/mfd/da9150/
> F: include/sound/da[79]*.h
> F: sound/soc/codecs/da[79]*.[ch]
>
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 25+ messages in thread