* [PATCH v5 1/4] Documentation: tps65086: Add DT bindings for the TPS65086 PMIC
2015-12-01 18:44 [PATCH v5 0/4] Add support for the TI TPS65086 PMIC Andrew F. Davis
@ 2015-12-01 18:44 ` Andrew F. Davis
2015-12-01 18:44 ` [PATCH v5 2/4] mfd: tps65086: Add driver " Andrew F. Davis
` (2 subsequent siblings)
3 siblings, 0 replies; 7+ messages in thread
From: Andrew F. Davis @ 2015-12-01 18:44 UTC (permalink / raw)
To: Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Linus Walleij, Alexandre Courbot, Samuel Ortiz, Lee Jones,
Liam Girdwood, Mark Brown
Cc: devicetree, linux-gpio, linux-kernel, Andrew F. Davis
The TPS65086 PMIC contains several regulators and a GPO controller.
Add bindings for the TPS65086 PMIC.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
---
Documentation/devicetree/bindings/mfd/tps65086.txt | 55 ++++++++++++++++++++++
1 file changed, 55 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/tps65086.txt
diff --git a/Documentation/devicetree/bindings/mfd/tps65086.txt b/Documentation/devicetree/bindings/mfd/tps65086.txt
new file mode 100644
index 0000000..d370561
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/tps65086.txt
@@ -0,0 +1,55 @@
+* TPS65086 Power Management Integrated Circuit (PMIC) bindings
+
+Required properties:
+ - compatible : Should be "ti,tps65086".
+ - reg : I2C slave address.
+ - interrupt-parent : Phandle to the parent interrupt controller.
+ - interrupts : The interrupt line the device is connected to.
+ - interrupt-controller : Marks the device node as an interrupt controller.
+ - #interrupt-cells : The number of cells to describe an IRQ, should be 2.
+ The first cell is the IRQ number.
+ The second cell is the flags, encoded as trigger
+ masks from ../interrupt-controller/interrupts.txt.
+ - gpio-controller : Marks the device node as a GPIO Controller.
+ - #gpio-cells : Should be two. The first cell is the pin number and
+ the second cell is used to specify flags.
+ See ../gpio/gpio.txt for more information.
+ - regulators: : List of child nodes that specify the regulator
+ initialization data. Child nodes must be named
+ after their hardware counterparts: buck[1-6],
+ ldoa[1-3], swa1, swb[1-2], and vtt. Each child
+ node is defined using the standard binding for
+ regulators and the optional regulator properties
+ defined below.
+
+Optional regulator properties:
+ - ti,regulator-step-size-25mv : This is applicable for buck[1,2,6], set this
+ if the regulator is factory set with a 25mv
+ step voltage mapping.
+ - ti,regulator-decay : This is applicable for buck[1-6], set this if
+ the output needs to decay, default is for
+ the output to slew down.
+
+Example:
+
+ pmic: tps65086@5e {
+ compatible = "ti,tps65086";
+ reg = <0x5e>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <28 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ regulators {
+ buck1 {
+ regulator-name = "vcc1";
+ regulator-min-microvolt = <1600000>;
+ regulator-max-microvolt = <1600000>;
+ regulator-boot-on;
+ ti,regulator-decay;
+ ti,regulator-step-size-25mv;
+ };
+ };
+ };
--
1.9.1
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v5 2/4] mfd: tps65086: Add driver for the TPS65086 PMIC
2015-12-01 18:44 [PATCH v5 0/4] Add support for the TI TPS65086 PMIC Andrew F. Davis
2015-12-01 18:44 ` [PATCH v5 1/4] Documentation: tps65086: Add DT bindings for the " Andrew F. Davis
@ 2015-12-01 18:44 ` Andrew F. Davis
[not found] ` <1448995444-29031-1-git-send-email-afd-l0cyMroinI0@public.gmane.org>
2015-12-01 18:44 ` [PATCH v5 4/4] gpio: tps65086: Add GPO " Andrew F. Davis
3 siblings, 0 replies; 7+ messages in thread
From: Andrew F. Davis @ 2015-12-01 18:44 UTC (permalink / raw)
To: Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Linus Walleij, Alexandre Courbot, Samuel Ortiz, Lee Jones,
Liam Girdwood, Mark Brown
Cc: devicetree, linux-gpio, linux-kernel, Andrew F. Davis
Add support for the TPS65912 device. It provides communication
through I2C and contains the following components:
- Regulators
- Load switches
- GPO controller
Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
---
drivers/mfd/Kconfig | 13 ++++
drivers/mfd/Makefile | 1 +
drivers/mfd/tps65086.c | 150 +++++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/tps65086.h | 118 ++++++++++++++++++++++++++++++++++
4 files changed, 282 insertions(+)
create mode 100644 drivers/mfd/tps65086.c
create mode 100644 include/linux/mfd/tps65086.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 4d92df6..232a911 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1106,6 +1106,19 @@ config TPS6507X
This driver can also be built as a module. If so, the module
will be called tps6507x.
+config MFD_TPS65086
+ tristate "TI TPS65086 Power Management Integrated Chips (PMICs)"
+ select REGMAP
+ select REGMAP_IRQ
+ select REGMAP_I2C
+ depends on I2C
+ help
+ If you say yes here you get support for the TPS65086 series of
+ Power Management chips.
+ This driver provides common support for accessing the device,
+ additional drivers must be enabled in order to use the
+ functionality of the device.
+
config TPS65911_COMPARATOR
tristate
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 99f93ab..3347b43 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -67,6 +67,7 @@ obj-$(CONFIG_MFD_WM8994) += wm8994.o
obj-$(CONFIG_TPS6105X) += tps6105x.o
obj-$(CONFIG_TPS65010) += tps65010.o
obj-$(CONFIG_TPS6507X) += tps6507x.o
+obj-$(CONFIG_MFD_TPS65086) += tps65086.o
obj-$(CONFIG_MFD_TPS65217) += tps65217.o
obj-$(CONFIG_MFD_TPS65218) += tps65218.o
obj-$(CONFIG_MFD_TPS65910) += tps65910.o
diff --git a/drivers/mfd/tps65086.c b/drivers/mfd/tps65086.c
new file mode 100644
index 0000000..e1edfc0
--- /dev/null
+++ b/drivers/mfd/tps65086.c
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Author: Andrew F. Davis <afd@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details.
+ *
+ * Based on the TPS65912 driver
+ */
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+
+#include <linux/mfd/tps65086.h>
+
+static const struct mfd_cell tps65086_cells[] = {
+ { .name = "tps65086-regulator", },
+ { .name = "tps65086-gpio", },
+};
+
+static const struct regmap_range tps65086_yes_ranges[] = {
+ regmap_reg_range(TPS65086_IRQ, TPS65086_IRQ),
+ regmap_reg_range(TPS65086_PMICSTAT, TPS65086_SHUTDNSRC),
+ regmap_reg_range(TPS65086_GPOCTRL, TPS65086_GPOCTRL),
+ regmap_reg_range(TPS65086_PG_STATUS1, TPS65086_OC_STATUS),
+};
+
+static const struct regmap_access_table tps65086_volatile_table = {
+ .yes_ranges = tps65086_yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(tps65086_yes_ranges),
+};
+
+static const struct regmap_config tps65086_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .cache_type = REGCACHE_RBTREE,
+ .volatile_table = &tps65086_volatile_table,
+};
+
+static const struct regmap_irq tps65086_irqs[] = {
+ REGMAP_IRQ_REG(TPS65086_IRQ_DIETEMP, 0, TPS65086_IRQ_DIETEMP_MASK),
+ REGMAP_IRQ_REG(TPS65086_IRQ_SHUTDN, 0, TPS65086_IRQ_SHUTDN_MASK),
+ REGMAP_IRQ_REG(TPS65086_IRQ_FAULT, 0, TPS65086_IRQ_FAULT_MASK),
+};
+
+static struct regmap_irq_chip tps65086_irq_chip = {
+ .name = "tps65086",
+ .status_base = TPS65086_IRQ,
+ .mask_base = TPS65086_IRQ_MASK,
+ .ack_base = TPS65086_IRQ,
+ .init_ack_masked = true,
+ .num_regs = 1,
+ .irqs = tps65086_irqs,
+ .num_irqs = ARRAY_SIZE(tps65086_irqs),
+};
+
+static const struct of_device_id tps65086_of_match_table[] = {
+ { .compatible = "ti,tps65086", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, tps65086_of_match_table);
+
+static int tps65086_probe(struct i2c_client *client,
+ const struct i2c_device_id *ids)
+{
+ struct tps65086 *tps;
+ unsigned int version;
+ int ret;
+
+ tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
+ if (!tps)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, tps);
+ tps->dev = &client->dev;
+ tps->irq = client->irq;
+
+ tps->regmap = devm_regmap_init_i2c(client, &tps65086_regmap_config);
+ if (IS_ERR(tps->regmap)) {
+ dev_err(tps->dev, "Failed to initialize register map\n");
+ return PTR_ERR(tps->regmap);
+ }
+
+ ret = regmap_read(tps->regmap, TPS65086_DEVICEID, &version);
+ if (ret) {
+ dev_err(tps->dev, "Failed to read revision register\n");
+ return ret;
+ }
+
+ dev_info(tps->dev, "Device: TPS65086%01lX, OTP: %c, Rev: %ld\n",
+ (version & TPS65086_DEVICEID_PART_MASK),
+ (char)((version & TPS65086_DEVICEID_OTP_MASK) >> 4) + 'A',
+ (version & TPS65086_DEVICEID_REV_MASK) >> 6);
+
+ ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0,
+ &tps65086_irq_chip, &tps->irq_data);
+ if (ret) {
+ dev_err(tps->dev, "Failed to register IRQ chip\n");
+ return ret;
+ }
+
+ ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65086_cells,
+ ARRAY_SIZE(tps65086_cells), NULL, 0,
+ regmap_irq_get_domain(tps->irq_data));
+ if (ret) {
+ regmap_del_irq_chip(tps->irq, tps->irq_data);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int tps65086_remove(struct i2c_client *client)
+{
+ struct tps65086 *tps = i2c_get_clientdata(client);
+
+ regmap_del_irq_chip(tps->irq, tps->irq_data);
+
+ return 0;
+}
+
+static const struct i2c_device_id tps65086_id_table[] = {
+ { "tps65086", 0 },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(i2c, tps65086_id_table);
+
+static struct i2c_driver tps65086_driver = {
+ .driver = {
+ .name = "tps65086",
+ .of_match_table = tps65086_of_match_table,
+ },
+ .probe = tps65086_probe,
+ .remove = tps65086_remove,
+ .id_table = tps65086_id_table,
+};
+module_i2c_driver(tps65086_driver);
+
+MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
+MODULE_DESCRIPTION("TPS65086 PMIC Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/tps65086.h b/include/linux/mfd/tps65086.h
new file mode 100644
index 0000000..0c50452
--- /dev/null
+++ b/include/linux/mfd/tps65086.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Author: Andrew F. Davis <afd@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details.
+ *
+ * Based on the TPS65912 driver
+ */
+
+#ifndef __LINUX_MFD_TPS65086_H
+#define __LINUX_MFD_TPS65086_H
+
+#include <linux/device.h>
+#include <linux/regmap.h>
+
+/* List of registers for TPS65086 */
+#define TPS65086_DEVICEID 0x01
+#define TPS65086_IRQ 0x02
+#define TPS65086_IRQ_MASK 0x03
+#define TPS65086_PMICSTAT 0x04
+#define TPS65086_SHUTDNSRC 0x05
+#define TPS65086_BUCK1CTRL 0x20
+#define TPS65086_BUCK2CTRL 0x21
+#define TPS65086_BUCK3DECAY 0x22
+#define TPS65086_BUCK3VID 0x23
+#define TPS65086_BUCK3SLPCTRL 0x24
+#define TPS65086_BUCK4CTRL 0x25
+#define TPS65086_BUCK5CTRL 0x26
+#define TPS65086_BUCK6CTRL 0x27
+#define TPS65086_LDOA2CTRL 0x28
+#define TPS65086_LDOA3CTRL 0x29
+#define TPS65086_DISCHCTRL1 0x40
+#define TPS65086_DISCHCTRL2 0x41
+#define TPS65086_DISCHCTRL3 0x42
+#define TPS65086_PG_DELAY1 0x43
+#define TPS65086_FORCESHUTDN 0x91
+#define TPS65086_BUCK1SLPCTRL 0x92
+#define TPS65086_BUCK2SLPCTRL 0x93
+#define TPS65086_BUCK4VID 0x94
+#define TPS65086_BUCK4SLPVID 0x95
+#define TPS65086_BUCK5VID 0x96
+#define TPS65086_BUCK5SLPVID 0x97
+#define TPS65086_BUCK6VID 0x98
+#define TPS65086_BUCK6SLPVID 0x99
+#define TPS65086_LDOA2VID 0x9A
+#define TPS65086_LDOA3VID 0x9B
+#define TPS65086_BUCK123CTRL 0x9C
+#define TPS65086_PG_DELAY2 0x9D
+#define TPS65086_PIN_EN_MASK1 0x9E
+#define TPS65086_PIN_EN_MASK2 0x9F
+#define TPS65086_SWVTT_EN 0x9F
+#define TPS65086_PIN_EN_OVR1 0xA0
+#define TPS65086_PIN_EN_OVR2 0xA1
+#define TPS65086_GPOCTRL 0xA1
+#define TPS65086_PWR_FAULT_MASK1 0xA2
+#define TPS65086_PWR_FAULT_MASK2 0xA3
+#define TPS65086_GPO1PG_CTRL1 0xA4
+#define TPS65086_GPO1PG_CTRL2 0xA5
+#define TPS65086_GPO4PG_CTRL1 0xA6
+#define TPS65086_GPO4PG_CTRL2 0xA7
+#define TPS65086_GPO2PG_CTRL1 0xA8
+#define TPS65086_GPO2PG_CTRL2 0xA9
+#define TPS65086_GPO3PG_CTRL1 0xAA
+#define TPS65086_GPO3PG_CTRL2 0xAB
+#define TPS65086_LDOA1CTRL 0xAE
+#define TPS65086_PG_STATUS1 0xB0
+#define TPS65086_PG_STATUS2 0xB1
+#define TPS65086_PWR_FAULT_STATUS1 0xB2
+#define TPS65086_PWR_FAULT_STATUS2 0xB3
+#define TPS65086_TEMPCRIT 0xB4
+#define TPS65086_TEMPHOT 0xB5
+#define TPS65086_OC_STATUS 0xB6
+
+/* IRQ Register field definitions */
+#define TPS65086_IRQ_DIETEMP_MASK BIT(0)
+#define TPS65086_IRQ_SHUTDN_MASK BIT(3)
+#define TPS65086_IRQ_FAULT_MASK BIT(7)
+
+/* DEVICEID Register field definitions */
+#define TPS65086_DEVICEID_PART_MASK GENMASK(3, 0)
+#define TPS65086_DEVICEID_OTP_MASK GENMASK(5, 4)
+#define TPS65086_DEVICEID_REV_MASK GENMASK(7, 6)
+
+/* VID Masks */
+#define BUCK_VID_MASK GENMASK(7, 1)
+#define VDOA1_VID_MASK GENMASK(4, 1)
+#define VDOA23_VID_MASK GENMASK(3, 0)
+
+/* Define the TPS65086 IRQ numbers */
+enum tps65086_irqs {
+ TPS65086_IRQ_DIETEMP,
+ TPS65086_IRQ_SHUTDN,
+ TPS65086_IRQ_FAULT,
+};
+
+/*
+ * struct tps65086 - state holder for the tps65086 driver
+ *
+ * Device data may be used to access the TPS65086 chip
+ */
+struct tps65086 {
+ struct device *dev;
+ struct regmap *regmap;
+
+ /* IRQ Data */
+ int irq;
+ struct regmap_irq_chip_data *irq_data;
+};
+
+#endif /* __LINUX_MFD_TPS65086_H */
--
1.9.1
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v5 4/4] gpio: tps65086: Add GPO driver for the TPS65086 PMIC
2015-12-01 18:44 [PATCH v5 0/4] Add support for the TI TPS65086 PMIC Andrew F. Davis
` (2 preceding siblings ...)
[not found] ` <1448995444-29031-1-git-send-email-afd-l0cyMroinI0@public.gmane.org>
@ 2015-12-01 18:44 ` Andrew F. Davis
2015-12-01 20:16 ` kbuild test robot
3 siblings, 1 reply; 7+ messages in thread
From: Andrew F. Davis @ 2015-12-01 18:44 UTC (permalink / raw)
To: Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Linus Walleij, Alexandre Courbot, Samuel Ortiz, Lee Jones,
Liam Girdwood, Mark Brown
Cc: devicetree, linux-gpio, linux-kernel, Andrew F. Davis
Add support for the TPS65086 PMIC GPOs.
TPS65086 has four configurable GPOs that can be used for several
purposes. These are output only.
Signed-off-by: Andrew F. Davis <afd@ti.com>
---
drivers/gpio/Kconfig | 6 ++
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-tps65086.c | 144 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 151 insertions(+)
create mode 100644 drivers/gpio/gpio-tps65086.c
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index b18bea0..f357a2e 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -838,6 +838,12 @@ config GPIO_TIMBERDALE
---help---
Add support for the GPIO IP in the timberdale FPGA.
+config GPIO_TPS65086
+ tristate "TI TPS65086 GPO"
+ depends on MFD_TPS65086
+ help
+ This driver supports the GPO on TI TPS65086x PMICs.
+
config GPIO_TPS6586X
bool "TPS6586X GPIO"
depends on MFD_TPS6586X
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 986dbd8..fd98126 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -95,6 +95,7 @@ obj-$(CONFIG_GPIO_TC3589X) += gpio-tc3589x.o
obj-$(CONFIG_ARCH_TEGRA) += gpio-tegra.o
obj-$(CONFIG_GPIO_TIMBERDALE) += gpio-timberdale.o
obj-$(CONFIG_GPIO_PALMAS) += gpio-palmas.o
+obj-$(CONFIG_GPIO_TPS65086) += gpio-tps65086.o
obj-$(CONFIG_GPIO_TPS6586X) += gpio-tps6586x.o
obj-$(CONFIG_GPIO_TPS65910) += gpio-tps65910.o
obj-$(CONFIG_GPIO_TPS65912) += gpio-tps65912.o
diff --git a/drivers/gpio/gpio-tps65086.c b/drivers/gpio/gpio-tps65086.c
new file mode 100644
index 0000000..e3d85bf
--- /dev/null
+++ b/drivers/gpio/gpio-tps65086.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Author: Andrew F. Davis <afd@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details.
+ *
+ * Based on the TPS65912 driver
+ */
+
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <linux/mfd/tps65086.h>
+
+struct tps65086_gpio {
+ struct gpio_chip chip;
+ struct tps65086 *tps;
+};
+
+static inline struct tps65086_gpio *to_tps65086_gpio(struct gpio_chip *chip)
+{
+ return container_of(chip, struct tps65086_gpio, chip);
+}
+
+static int tps65086_gpio_get_direction(struct gpio_chip *chip,
+ unsigned offset)
+{
+ return GPIOF_DIR_OUT;
+}
+
+static int tps65086_gpio_direction_input(struct gpio_chip *chip,
+ unsigned offset)
+{
+ /* This device is output only */
+ return -EINVAL;
+}
+
+static int tps65086_gpio_direction_output(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ struct tps65086_gpio *gpio = to_tps65086_gpio(chip);
+
+ /* Set the initial value */
+ regmap_update_bits(gpio->tps->regmap, TPS65086_GPOCTRL,
+ BIT(4 + offset), value ? BIT(4 + offset) : 0);
+
+ return 0;
+}
+
+static int tps65086_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ struct tps65086_gpio *gpio = to_tps65086_gpio(chip);
+ int ret, val;
+
+ ret = regmap_read(gpio->tps->regmap, TPS65086_GPOCTRL, &val);
+ if (ret < 0)
+ return ret;
+
+ return val & BIT(4 + offset);
+}
+
+static void tps65086_gpio_set(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ struct tps65086_gpio *gpio = to_tps65086_gpio(chip);
+
+ regmap_update_bits(gpio->tps->regmap, TPS65086_GPOCTRL,
+ BIT(4 + offset), value ? BIT(4 + offset) : 0);
+}
+
+static struct gpio_chip template_chip = {
+ .label = "tps65086-gpio",
+ .owner = THIS_MODULE,
+ .get_direction = tps65086_gpio_get_direction,
+ .direction_input = tps65086_gpio_direction_input,
+ .direction_output = tps65086_gpio_direction_output,
+ .get = tps65086_gpio_get,
+ .set = tps65086_gpio_set,
+ .base = -1,
+ .ngpio = 4,
+ .can_sleep = true,
+};
+
+static int tps65086_gpio_probe(struct platform_device *pdev)
+{
+ struct tps65086_gpio *gpio;
+ int ret;
+
+ gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
+ if (!gpio)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, gpio);
+
+ gpio->tps = dev_get_drvdata(pdev->dev.parent);
+ gpio->chip = template_chip;
+ gpio->chip.parent = gpio->tps->dev;
+
+ ret = gpiochip_add(&gpio->chip);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int tps65086_gpio_remove(struct platform_device *pdev)
+{
+ struct tps65086_gpio *gpio = platform_get_drvdata(pdev);
+
+ gpiochip_remove(&gpio->chip);
+
+ return 0;
+}
+
+static const struct platform_device_id tps65086_gpio_id_table[] = {
+ { "tps65086-gpio", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, tps65086_gpio_id_table);
+
+static struct platform_driver tps65086_gpio_driver = {
+ .driver = {
+ .name = "tps65086-gpio",
+ },
+ .probe = tps65086_gpio_probe,
+ .remove = tps65086_gpio_remove,
+ .id_table = tps65086_gpio_id_table,
+};
+module_platform_driver(tps65086_gpio_driver);
+
+MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
+MODULE_DESCRIPTION("TPS65086 GPIO driver");
+MODULE_LICENSE("GPL v2");
--
1.9.1
^ permalink raw reply related [flat|nested] 7+ messages in thread