* [PATCH v4 01/18] mfd: add new driver for Sharp LoCoMo
2015-05-25 11:41 [PATCH v4 00/18] new MFD LoCoMo driver set Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-27 10:27 ` Lee Jones
2015-05-25 11:41 ` [PATCH v4 02/18] leds: port locomo leds driver to new locomo core Dmitry Eremin-Solenikov
` (8 subsequent siblings)
9 siblings, 1 reply; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel, linux-gpio, linux-input, linux-spi, alsa-devel
LoCoMo is a GA used on Sharp Zaurus SL-5x00. Current driver does has
several design issues (special bus instead of platform bus, doesn't use
mfd-core, etc).
Implement 'core' parts of locomo support as an mfd driver.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
drivers/mfd/Kconfig | 10 ++
drivers/mfd/Makefile | 1 +
drivers/mfd/locomo.c | 336 +++++++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/locomo.h | 169 +++++++++++++++++++++++
4 files changed, 516 insertions(+)
create mode 100644 drivers/mfd/locomo.c
create mode 100644 include/linux/mfd/locomo.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index d5ad04d..8c33940 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1430,6 +1430,16 @@ config MFD_STW481X
in various ST Microelectronics and ST-Ericsson embedded
Nomadik series.
+config MFD_LOCOMO
+ bool "Sharp LoCoMo support"
+ depends on ARM
+ select MFD_CORE
+ select IRQ_DOMAIN
+ select REGMAP_MMIO
+ help
+ Support for Sharp LoCoMo Grid Array found in Sharp SL-5x00
+ PDA family.
+
menu "Multimedia Capabilities Port drivers"
depends on ARCH_SA1100
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 0e5cfeb..6c23b73 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -181,6 +181,7 @@ obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
obj-$(CONFIG_MFD_DLN2) += dln2.o
obj-$(CONFIG_MFD_RT5033) += rt5033.o
obj-$(CONFIG_MFD_SKY81452) += sky81452.o
+obj-$(CONFIG_MFD_LOCOMO) += locomo.o
intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
diff --git a/drivers/mfd/locomo.c b/drivers/mfd/locomo.c
new file mode 100644
index 0000000..4682893
--- /dev/null
+++ b/drivers/mfd/locomo.c
@@ -0,0 +1,336 @@
+/*
+ * Sharp LoCoMo support
+ *
+ * (C) Copyright 2015 Dmitry Eremin-Solenikov
+ *
+ * Based on old driver at arch/arm/common/locomo.c
+ *
+ * (C) Copyright 2004 John Lenz
+ *
+ * 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 file contains all generic LoCoMo support.
+ *
+ * All initialization functions provided here are intended to be called
+ * from machine specific code with proper arguments when required.
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/kernel.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/locomo.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+/* LoCoMo Interrupts */
+#define IRQ_LOCOMO_KEY 0
+#define IRQ_LOCOMO_GPIO 1
+#define IRQ_LOCOMO_LT 2
+#define IRQ_LOCOMO_SPI 3
+
+#define LOCOMO_NR_IRQS 4
+
+/* The following is the overall data for the locomo chip */
+struct locomo {
+ struct device *dev;
+ unsigned int irq;
+ spinlock_t lock;
+ struct irq_domain *domain;
+ struct regmap *regmap;
+};
+
+static struct resource locomo_kbd_resources[] = {
+ DEFINE_RES_IRQ(IRQ_LOCOMO_KEY),
+};
+
+static struct resource locomo_gpio_resources[] = {
+ DEFINE_RES_IRQ(IRQ_LOCOMO_GPIO),
+};
+
+/* Filled in locomo_probe() function, will be kmemduped by platform core */
+static struct locomo_gpio_platform_data locomo_gpio_pdata;
+
+static struct resource locomo_lt_resources[] = {
+ DEFINE_RES_IRQ(IRQ_LOCOMO_LT),
+};
+
+static struct resource locomo_spi_resources[] = {
+ DEFINE_RES_IRQ(IRQ_LOCOMO_SPI),
+};
+
+/* Filled in locomo_probe() function, will be kmemduped by platform core */
+static struct locomo_lcd_platform_data locomo_lcd_pdata;
+
+static struct mfd_cell locomo_cells[] = {
+ {
+ .name = "locomo-kbd",
+ .resources = locomo_kbd_resources,
+ .num_resources = ARRAY_SIZE(locomo_kbd_resources),
+ },
+ {
+ .name = "locomo-gpio",
+ .resources = locomo_gpio_resources,
+ .num_resources = ARRAY_SIZE(locomo_gpio_resources),
+ .platform_data = &locomo_gpio_pdata,
+ .pdata_size = sizeof(locomo_gpio_pdata),
+ },
+ {
+ .name = "locomo-lt", /* Long time timer */
+ .resources = locomo_lt_resources,
+ .num_resources = ARRAY_SIZE(locomo_lt_resources),
+ },
+ {
+ .name = "locomo-spi",
+ .resources = locomo_spi_resources,
+ .num_resources = ARRAY_SIZE(locomo_spi_resources),
+ },
+ {
+ .name = "locomo-lcd",
+ .platform_data = &locomo_lcd_pdata,
+ .pdata_size = sizeof(locomo_lcd_pdata),
+ },
+ { .name = "locomo-led", },
+ { .name = "locomo-backlight", },
+ { .name = "locomo-i2c", },
+};
+
+/*
+ * IRQ support
+ */
+static void locomo_handler(unsigned int irq, struct irq_desc *desc)
+{
+ struct locomo *ldev = irq_get_handler_data(irq);
+ struct irq_chip *irqchip = irq_desc_get_chip(desc);
+ unsigned int req;
+
+ chained_irq_enter(irqchip, desc);
+
+ /* Check why this interrupt was generated */
+ while (1) {
+ regmap_read(ldev->regmap, LOCOMO_ICR, &req);
+ req >>= LOCOMO_ICR_STATUS_SHIFT;
+
+ if (!req)
+ break;
+
+ irq = ffs(req) - 1;
+ generic_handle_irq(irq_find_mapping(ldev->domain, irq));
+ }
+
+ chained_irq_exit(irqchip, desc);
+}
+
+static void locomo_mask_irq(struct irq_data *d)
+{
+ struct locomo *ldev = irq_data_get_irq_chip_data(d);
+ unsigned int mask = BIT(d->hwirq + LOCOMO_ICR_MASK_SHIFT);
+
+ regmap_update_bits(ldev->regmap, LOCOMO_ICR, mask, 0);
+}
+
+static void locomo_unmask_irq(struct irq_data *d)
+{
+ struct locomo *ldev = irq_data_get_irq_chip_data(d);
+ unsigned int mask = BIT(d->hwirq + LOCOMO_ICR_MASK_SHIFT);
+
+ regmap_update_bits(ldev->regmap, LOCOMO_ICR, mask, mask);
+}
+
+static struct irq_chip locomo_chip = {
+ .name = "locomo",
+ .irq_mask = locomo_mask_irq,
+ .irq_unmask = locomo_unmask_irq,
+};
+
+static int locomo_irq_map(struct irq_domain *d, unsigned int virq,
+ irq_hw_number_t hwirq)
+{
+ struct locomo *locomo = d->host_data;
+
+ irq_set_chip_data(virq, locomo);
+ irq_set_chip_and_handler(virq, &locomo_chip, handle_level_irq);
+ set_irq_flags(virq, IRQF_VALID);
+
+ return 0;
+}
+
+static void locomo_irq_unmap(struct irq_domain *d, unsigned int virq)
+{
+ set_irq_flags(virq, 0);
+ irq_set_chip_and_handler(virq, NULL, NULL);
+ irq_set_chip_data(virq, NULL);
+}
+
+static struct irq_domain_ops locomo_irq_ops = {
+ .map = locomo_irq_map,
+ .unmap = locomo_irq_unmap,
+ .xlate = irq_domain_xlate_onecell,
+};
+
+static int locomo_setup_irq(struct locomo *ldev)
+{
+ ldev->domain = irq_domain_add_simple(NULL, LOCOMO_NR_IRQS, 0,
+ &locomo_irq_ops, ldev);
+ if (!ldev->domain)
+ return -ENOMEM;
+
+ /*
+ * Install handler for IRQ_LOCOMO_HW.
+ */
+ irq_set_irq_type(ldev->irq, IRQ_TYPE_EDGE_FALLING);
+ irq_set_handler_data(ldev->irq, ldev);
+ irq_set_chained_handler(ldev->irq, locomo_handler);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int locomo_suspend(struct device *dev)
+{
+ struct locomo *ldev = dev_get_drvdata(dev);
+
+ /* Audio */
+ regmap_write(ldev->regmap, LOCOMO_PAIF, 0x00);
+
+ /*
+ * Original code disabled the clock depending on leds settings
+ * However we disable leds before suspend, thus it's safe
+ * to just assume this setting.
+ */
+ /* CLK32 off */
+ regmap_write(ldev->regmap, LOCOMO_C32K, 0x00);
+
+ /* 22MHz/24MHz clock off */
+ regmap_write(ldev->regmap, LOCOMO_ACC, 0x00);
+
+ return 0;
+}
+
+static int locomo_resume(struct device *dev)
+{
+ struct locomo *ldev = dev_get_drvdata(dev);
+
+ regmap_write(ldev->regmap, LOCOMO_C32K, 0x00);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(locomo_pm, locomo_suspend, locomo_resume);
+
+static const struct regmap_config locomo_regmap_config = {
+ .name = "LoCoMo",
+ .reg_bits = 8,
+ .reg_stride = 4,
+ .val_bits = 16,
+ .cache_type = REGCACHE_NONE,
+ .max_register = 0xec,
+};
+
+static int locomo_probe(struct platform_device *pdev)
+{
+ struct locomo_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ struct resource *res;
+ void __iomem *base;
+ struct locomo *ldev;
+ unsigned int rev;
+ int ret;
+
+ ldev = devm_kzalloc(&pdev->dev, sizeof(*ldev), GFP_KERNEL);
+ if (!ldev)
+ return -ENOMEM;
+
+ spin_lock_init(&ldev->lock);
+ ldev->dev = &pdev->dev;
+
+ ldev->irq = platform_get_irq(pdev, 0);
+ if (ldev->irq < 0)
+ return ldev->irq;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ ldev->regmap = devm_regmap_init_mmio(&pdev->dev, base,
+ &locomo_regmap_config);
+ if (IS_ERR(ldev->regmap))
+ return PTR_ERR(ldev->regmap);
+
+ if (pdata) {
+ locomo_gpio_pdata.gpio_base = pdata->gpio_base;
+ locomo_lcd_pdata.comadj = pdata->comadj;
+ } else {
+ locomo_gpio_pdata.gpio_base = -1;
+ locomo_lcd_pdata.comadj = 128;
+ }
+
+ platform_set_drvdata(pdev, ldev);
+
+ regmap_read(ldev->regmap, LOCOMO_VER, &rev);
+ dev_info(&pdev->dev, "LoCoMo Chip: %04x\n", rev);
+
+ /* Clear IRQ status and mask */
+ regmap_write(ldev->regmap, LOCOMO_ICR, 0);
+
+ /* Longtime timer */
+ regmap_write(ldev->regmap, LOCOMO_LTINT, 0);
+
+ ret = locomo_setup_irq(ldev);
+ if (ret)
+ return ret;
+
+ ret = mfd_add_devices(&pdev->dev, pdev->id,
+ locomo_cells, ARRAY_SIZE(locomo_cells),
+ res, -1, ldev->domain);
+ if (ret)
+ goto err;
+
+ return 0;
+
+err:
+ irq_set_chained_handler(ldev->irq, NULL);
+ irq_set_handler_data(ldev->irq, NULL);
+
+ irq_domain_remove(ldev->domain);
+
+ return ret;
+}
+
+static int locomo_remove(struct platform_device *dev)
+{
+ struct locomo *ldev = platform_get_drvdata(dev);
+
+ mfd_remove_devices(&dev->dev);
+
+ irq_set_chained_handler(ldev->irq, NULL);
+ irq_set_handler_data(ldev->irq, NULL);
+
+ irq_domain_remove(ldev->domain);
+
+ return 0;
+}
+
+static struct platform_driver locomo_device_driver = {
+ .probe = locomo_probe,
+ .remove = locomo_remove,
+ .driver = {
+ .name = "locomo",
+ .pm = &locomo_pm,
+ },
+};
+
+module_platform_driver(locomo_device_driver);
+
+MODULE_DESCRIPTION("Sharp LoCoMo core driver");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
+MODULE_ALIAS("platform:locomo");
diff --git a/include/linux/mfd/locomo.h b/include/linux/mfd/locomo.h
new file mode 100644
index 0000000..999e3de
--- /dev/null
+++ b/include/linux/mfd/locomo.h
@@ -0,0 +1,169 @@
+/*
+ * This file contains the definitions for the LoCoMo G/A Chip
+ *
+ * (C) Copyright 2015 Dmitry Eremin-Solenikov
+ * (C) Copyright 2004 John Lenz
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License. See linux/COPYING for more information.
+ *
+ * Based on sa1111.h
+ */
+
+#ifndef _ASM_ARCH_LOCOMO
+#define _ASM_ARCH_LOCOMO
+
+/* LOCOMO chip version */
+#define LOCOMO_VER 0x00
+
+/* Pin status */
+#define LOCOMO_ST 0x04
+
+/* Pin status */
+#define LOCOMO_C32K 0x08
+
+/* Interrupt controller */
+#define LOCOMO_ICR 0x0c
+#define LOCOMO_ICR_MASK_SHIFT 4
+#define LOCOMO_ICR_STATUS_SHIFT 8
+
+/* Touch panel controller */
+#define LOCOMO_ASD 0x20 /* AD start delay */
+#define LOCOMO_HSD 0x28 /* HSYS delay */
+#define LOCOMO_HSC 0x2c /* HSYS period */
+#define LOCOMO_TADC 0x30 /* tablet ADC clock */
+
+/* Backlight controller: TFT signal */
+#define LOCOMO_TC 0x38 /* TFT control signal */
+#define LOCOMO_CPSD 0x3c /* CPS delay */
+
+/* Keyboard controller */
+#define LOCOMO_KIB 0x40 /* KIB level */
+#define LOCOMO_KSC 0x44 /* KSTRB control */
+#define LOCOMO_KCMD 0x48 /* KSTRB command */
+#define LOCOMO_KIC 0x4c /* Key interrupt */
+
+/* Audio clock */
+#define LOCOMO_ACC 0x54 /* Audio clock */
+#define LOCOMO_ACC_XON 0x80
+#define LOCOMO_ACC_XEN 0x40
+#define LOCOMO_ACC_XSEL0 0x00
+#define LOCOMO_ACC_XSEL1 0x20
+#define LOCOMO_ACC_MCLKEN 0x10
+#define LOCOMO_ACC_64FSEN 0x08
+#define LOCOMO_ACC_CLKSEL000 0x00 /* mclk 2 */
+#define LOCOMO_ACC_CLKSEL001 0x01 /* mclk 3 */
+#define LOCOMO_ACC_CLKSEL010 0x02 /* mclk 4 */
+#define LOCOMO_ACC_CLKSEL011 0x03 /* mclk 6 */
+#define LOCOMO_ACC_CLKSEL100 0x04 /* mclk 8 */
+#define LOCOMO_ACC_CLKSEL101 0x05 /* mclk 12 */
+
+/* SPI interface */
+#define LOCOMO_SPIMD 0x60 /* SPI mode setting */
+#define LOCOMO_SPIMD_LOOPBACK BIT(15) /* loopback tx to rx */
+#define LOCOMO_SPIMD_MSB1ST BIT(14) /* send MSB first */
+#define LOCOMO_SPIMD_DOSTAT BIT(13) /* transmit line is idle high */
+#define LOCOMO_SPIMD_TCPOL BIT(11) /* transmit CPOL (maybe affects CPHA) */
+#define LOCOMO_SPIMD_RCPOL BIT(10) /* receive CPOL (maybe affects CPHA) */
+#define LOCOMO_SPIMD_TDINV BIT(9) /* invert transmit line */
+#define LOCOMO_SPIMD_RDINV BIT(8) /* invert receive line */
+#define LOCOMO_SPIMD_XON BIT(7) /* enable spi controller clock */
+#define LOCOMO_SPIMD_XEN BIT(6) /* clock bit write enable */
+#define LOCOMO_SPIMD_XSEL 0x0018 /* clock select */
+/* xon must be off when enabling xen, wait 300 us before xon -> 1 */
+#define CLOCK_18MHZ 0 /* 18,432 MHz clock */
+#define CLOCK_22MHZ 1 /* 22,5792 MHz clock */
+#define CLOCK_25MHZ 2 /* 24,576 MHz clock */
+#define LOCOMO_SPIMD_CLKSEL 0x7
+#define DIV_1 0 /* don't divide clock */
+#define DIV_2 1 /* divide clock by two */
+#define DIV_4 2 /* divide clock by four */
+#define DIV_8 3 /* divide clock by eight */
+#define DIV_64 4 /* divide clock by 64 */
+
+#define LOCOMO_SPICT 0x64 /* SPI mode control */
+#define LOCOMO_SPICT_CRC16_7_B BIT(15) /* 0: crc16 1: crc7 */
+#define LOCOMO_SPICT_CRCRX_TX_B BIT(14)
+#define LOCOMO_SPICT_CRCRESET_B BIT(13)
+#define LOCOMO_SPICT_CEN BIT(7) /* ?? enable */
+#define LOCOMO_SPICT_CS BIT(6) /* chip select */
+#define LOCOMO_SPICT_UNIT16 BIT(5) /* 0: 8 bit, 1: 16 bit*/
+#define LOCOMO_SPICT_ALIGNEN BIT(2) /* align transfer enable */
+#define LOCOMO_SPICT_RXWEN BIT(1) /* continuous receive */
+#define LOCOMO_SPICT_RXUEN BIT(0) /* aligned receive */
+
+#define LOCOMO_SPIST 0x68 /* SPI status */
+#define LOCOMO_SPI_TEND BIT(3) /* Transfer end bit */
+#define LOCOMO_SPI_REND BIT(2) /* Receive end bit */
+#define LOCOMO_SPI_RFW BIT(1) /* write buffer bit */
+#define LOCOMO_SPI_RFR BIT(0) /* read buffer bit */
+
+#define LOCOMO_SPIIS 0x70 /* SPI interrupt status */
+#define LOCOMO_SPIWE 0x74 /* SPI interrupt status write enable */
+#define LOCOMO_SPIIE 0x78 /* SPI interrupt enable */
+#define LOCOMO_SPIIR 0x7c /* SPI interrupt request */
+#define LOCOMO_SPITD 0x80 /* SPI transfer data write */
+#define LOCOMO_SPIRD 0x84 /* SPI receive data read */
+#define LOCOMO_SPITS 0x88 /* SPI transfer data shift */
+#define LOCOMO_SPIRS 0x8C /* SPI receive data shift */
+
+/* GPIO */
+#define LOCOMO_GPD 0x90 /* GPIO direction */
+#define LOCOMO_GPE 0x94 /* GPIO input enable */
+#define LOCOMO_GPL 0x98 /* GPIO level */
+#define LOCOMO_GPO 0x9c /* GPIO out data setting */
+#define LOCOMO_GRIE 0xa0 /* GPIO rise detection */
+#define LOCOMO_GFIE 0xa4 /* GPIO fall detection */
+#define LOCOMO_GIS 0xa8 /* GPIO edge detection status */
+#define LOCOMO_GWE 0xac /* GPIO status write enable */
+#define LOCOMO_GIE 0xb0 /* GPIO interrupt enable */
+#define LOCOMO_GIR 0xb4 /* GPIO interrupt request */
+
+/* Front light adjustment controller */
+#define LOCOMO_ALS 0xc8 /* Adjust light cycle */
+#define LOCOMO_ALS_EN 0x8000
+#define LOCOMO_ALD 0xcc /* Adjust light duty */
+
+/* PCM audio interface */
+#define LOCOMO_PAIF 0xd0 /* PCM audio interface */
+#define LOCOMO_PAIF_SCINV 0x20
+#define LOCOMO_PAIF_SCEN 0x10
+#define LOCOMO_PAIF_LRCRST 0x08
+#define LOCOMO_PAIF_LRCEVE 0x04
+#define LOCOMO_PAIF_LRCINV 0x02
+#define LOCOMO_PAIF_LRCEN 0x01
+
+/* Long time timer */
+#define LOCOMO_LTC 0xd8 /* LTC interrupt setting */
+#define LOCOMO_LTINT 0xdc /* LTC interrupt */
+
+/* DAC control signal for LCD (COMADJ ) */
+#define LOCOMO_DAC 0xe0
+/* DAC control */
+#define LOCOMO_DAC_SCLOEB 0x08 /* SCL pin output data */
+#define LOCOMO_DAC_TEST 0x04 /* Test bit */
+#define LOCOMO_DAC_SDA 0x02 /* SDA pin level (read-only) */
+#define LOCOMO_DAC_SDAOEB 0x01 /* SDA pin output data */
+
+/* LED controller */
+#define LOCOMO_LPT0 0xe8
+#define LOCOMO_LPT1 0xec
+#define LOCOMO_LPT_TOFH 0x80
+#define LOCOMO_LPT_TOFL 0x08
+#define LOCOMO_LPT_TOH(TOH) ((TOH & 0x7) << 4)
+#define LOCOMO_LPT_TOL(TOL) ((TOL & 0x7))
+
+struct locomo_gpio_platform_data {
+ unsigned int gpio_base;
+};
+
+struct locomo_lcd_platform_data {
+ u8 comadj;
+};
+
+struct locomo_platform_data {
+ unsigned int gpio_base;
+ u8 comadj;
+};
+
+#endif
--
2.1.4
^ permalink raw reply related [flat|nested] 27+ messages in thread* Re: [PATCH v4 01/18] mfd: add new driver for Sharp LoCoMo
2015-05-25 11:41 ` [PATCH v4 01/18] mfd: add new driver for Sharp LoCoMo Dmitry Eremin-Solenikov
@ 2015-05-27 10:27 ` Lee Jones
2015-05-27 14:55 ` Dmitry Eremin-Solenikov
0 siblings, 1 reply; 27+ messages in thread
From: Lee Jones @ 2015-05-27 10:27 UTC (permalink / raw)
To: Dmitry Eremin-Solenikov
Cc: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Mark Brown,
Jingoo Han, Liam Girdwood, Andrea Adami, linux-arm-kernel,
linux-gpio, linux-input, linux-spi, alsa-devel
On Mon, 25 May 2015, Dmitry Eremin-Solenikov wrote:
> LoCoMo is a GA used on Sharp Zaurus SL-5x00. Current driver does has
> several design issues (special bus instead of platform bus, doesn't use
> mfd-core, etc).
>
> Implement 'core' parts of locomo support as an mfd driver.
>
> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
> ---
These things are much easier to re-review if you keep a change-log
here.
> drivers/mfd/Kconfig | 10 ++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/locomo.c | 336 +++++++++++++++++++++++++++++++++++++++++++++
> include/linux/mfd/locomo.h | 169 +++++++++++++++++++++++
> 4 files changed, 516 insertions(+)
> create mode 100644 drivers/mfd/locomo.c
> create mode 100644 include/linux/mfd/locomo.h
Looks good now though:
Acked-by: Lee Jones <lee.jones@linaro.org>
How do you plan for this to be merged?
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index d5ad04d..8c33940 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -1430,6 +1430,16 @@ config MFD_STW481X
> in various ST Microelectronics and ST-Ericsson embedded
> Nomadik series.
>
> +config MFD_LOCOMO
> + bool "Sharp LoCoMo support"
> + depends on ARM
> + select MFD_CORE
> + select IRQ_DOMAIN
> + select REGMAP_MMIO
> + help
> + Support for Sharp LoCoMo Grid Array found in Sharp SL-5x00
> + PDA family.
> +
> menu "Multimedia Capabilities Port drivers"
> depends on ARCH_SA1100
>
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index 0e5cfeb..6c23b73 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -181,6 +181,7 @@ obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
> obj-$(CONFIG_MFD_DLN2) += dln2.o
> obj-$(CONFIG_MFD_RT5033) += rt5033.o
> obj-$(CONFIG_MFD_SKY81452) += sky81452.o
> +obj-$(CONFIG_MFD_LOCOMO) += locomo.o
>
> intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o
> obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
> diff --git a/drivers/mfd/locomo.c b/drivers/mfd/locomo.c
> new file mode 100644
> index 0000000..4682893
> --- /dev/null
> +++ b/drivers/mfd/locomo.c
> @@ -0,0 +1,336 @@
> +/*
> + * Sharp LoCoMo support
> + *
> + * (C) Copyright 2015 Dmitry Eremin-Solenikov
> + *
> + * Based on old driver at arch/arm/common/locomo.c
> + *
> + * (C) Copyright 2004 John Lenz
> + *
> + * 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 file contains all generic LoCoMo support.
> + *
> + * All initialization functions provided here are intended to be called
> + * from machine specific code with proper arguments when required.
> + */
> +
> +#include <linux/delay.h>
> +#include <linux/gpio.h>
> +#include <linux/io.h>
> +#include <linux/irq.h>
> +#include <linux/irqdomain.h>
> +#include <linux/kernel.h>
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/locomo.h>
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/regmap.h>
> +#include <linux/slab.h>
> +
> +/* LoCoMo Interrupts */
> +#define IRQ_LOCOMO_KEY 0
> +#define IRQ_LOCOMO_GPIO 1
> +#define IRQ_LOCOMO_LT 2
> +#define IRQ_LOCOMO_SPI 3
> +
> +#define LOCOMO_NR_IRQS 4
> +
> +/* The following is the overall data for the locomo chip */
> +struct locomo {
> + struct device *dev;
> + unsigned int irq;
> + spinlock_t lock;
> + struct irq_domain *domain;
> + struct regmap *regmap;
> +};
> +
> +static struct resource locomo_kbd_resources[] = {
> + DEFINE_RES_IRQ(IRQ_LOCOMO_KEY),
> +};
> +
> +static struct resource locomo_gpio_resources[] = {
> + DEFINE_RES_IRQ(IRQ_LOCOMO_GPIO),
> +};
> +
> +/* Filled in locomo_probe() function, will be kmemduped by platform core */
> +static struct locomo_gpio_platform_data locomo_gpio_pdata;
> +
> +static struct resource locomo_lt_resources[] = {
> + DEFINE_RES_IRQ(IRQ_LOCOMO_LT),
> +};
> +
> +static struct resource locomo_spi_resources[] = {
> + DEFINE_RES_IRQ(IRQ_LOCOMO_SPI),
> +};
> +
> +/* Filled in locomo_probe() function, will be kmemduped by platform core */
> +static struct locomo_lcd_platform_data locomo_lcd_pdata;
> +
> +static struct mfd_cell locomo_cells[] = {
> + {
> + .name = "locomo-kbd",
> + .resources = locomo_kbd_resources,
> + .num_resources = ARRAY_SIZE(locomo_kbd_resources),
> + },
> + {
> + .name = "locomo-gpio",
> + .resources = locomo_gpio_resources,
> + .num_resources = ARRAY_SIZE(locomo_gpio_resources),
> + .platform_data = &locomo_gpio_pdata,
> + .pdata_size = sizeof(locomo_gpio_pdata),
> + },
> + {
> + .name = "locomo-lt", /* Long time timer */
> + .resources = locomo_lt_resources,
> + .num_resources = ARRAY_SIZE(locomo_lt_resources),
> + },
> + {
> + .name = "locomo-spi",
> + .resources = locomo_spi_resources,
> + .num_resources = ARRAY_SIZE(locomo_spi_resources),
> + },
> + {
> + .name = "locomo-lcd",
> + .platform_data = &locomo_lcd_pdata,
> + .pdata_size = sizeof(locomo_lcd_pdata),
> + },
> + { .name = "locomo-led", },
> + { .name = "locomo-backlight", },
> + { .name = "locomo-i2c", },
> +};
> +
> +/*
> + * IRQ support
> + */
> +static void locomo_handler(unsigned int irq, struct irq_desc *desc)
> +{
> + struct locomo *ldev = irq_get_handler_data(irq);
> + struct irq_chip *irqchip = irq_desc_get_chip(desc);
> + unsigned int req;
> +
> + chained_irq_enter(irqchip, desc);
> +
> + /* Check why this interrupt was generated */
> + while (1) {
> + regmap_read(ldev->regmap, LOCOMO_ICR, &req);
> + req >>= LOCOMO_ICR_STATUS_SHIFT;
> +
> + if (!req)
> + break;
> +
> + irq = ffs(req) - 1;
> + generic_handle_irq(irq_find_mapping(ldev->domain, irq));
> + }
> +
> + chained_irq_exit(irqchip, desc);
> +}
> +
> +static void locomo_mask_irq(struct irq_data *d)
> +{
> + struct locomo *ldev = irq_data_get_irq_chip_data(d);
> + unsigned int mask = BIT(d->hwirq + LOCOMO_ICR_MASK_SHIFT);
> +
> + regmap_update_bits(ldev->regmap, LOCOMO_ICR, mask, 0);
> +}
> +
> +static void locomo_unmask_irq(struct irq_data *d)
> +{
> + struct locomo *ldev = irq_data_get_irq_chip_data(d);
> + unsigned int mask = BIT(d->hwirq + LOCOMO_ICR_MASK_SHIFT);
> +
> + regmap_update_bits(ldev->regmap, LOCOMO_ICR, mask, mask);
> +}
> +
> +static struct irq_chip locomo_chip = {
> + .name = "locomo",
> + .irq_mask = locomo_mask_irq,
> + .irq_unmask = locomo_unmask_irq,
> +};
> +
> +static int locomo_irq_map(struct irq_domain *d, unsigned int virq,
> + irq_hw_number_t hwirq)
> +{
> + struct locomo *locomo = d->host_data;
> +
> + irq_set_chip_data(virq, locomo);
> + irq_set_chip_and_handler(virq, &locomo_chip, handle_level_irq);
> + set_irq_flags(virq, IRQF_VALID);
> +
> + return 0;
> +}
> +
> +static void locomo_irq_unmap(struct irq_domain *d, unsigned int virq)
> +{
> + set_irq_flags(virq, 0);
> + irq_set_chip_and_handler(virq, NULL, NULL);
> + irq_set_chip_data(virq, NULL);
> +}
> +
> +static struct irq_domain_ops locomo_irq_ops = {
> + .map = locomo_irq_map,
> + .unmap = locomo_irq_unmap,
> + .xlate = irq_domain_xlate_onecell,
> +};
> +
> +static int locomo_setup_irq(struct locomo *ldev)
> +{
> + ldev->domain = irq_domain_add_simple(NULL, LOCOMO_NR_IRQS, 0,
> + &locomo_irq_ops, ldev);
> + if (!ldev->domain)
> + return -ENOMEM;
> +
> + /*
> + * Install handler for IRQ_LOCOMO_HW.
> + */
> + irq_set_irq_type(ldev->irq, IRQ_TYPE_EDGE_FALLING);
> + irq_set_handler_data(ldev->irq, ldev);
> + irq_set_chained_handler(ldev->irq, locomo_handler);
> +
> + return 0;
> +}
> +
> +#ifdef CONFIG_PM_SLEEP
> +static int locomo_suspend(struct device *dev)
> +{
> + struct locomo *ldev = dev_get_drvdata(dev);
> +
> + /* Audio */
> + regmap_write(ldev->regmap, LOCOMO_PAIF, 0x00);
> +
> + /*
> + * Original code disabled the clock depending on leds settings
> + * However we disable leds before suspend, thus it's safe
> + * to just assume this setting.
> + */
> + /* CLK32 off */
> + regmap_write(ldev->regmap, LOCOMO_C32K, 0x00);
> +
> + /* 22MHz/24MHz clock off */
> + regmap_write(ldev->regmap, LOCOMO_ACC, 0x00);
> +
> + return 0;
> +}
> +
> +static int locomo_resume(struct device *dev)
> +{
> + struct locomo *ldev = dev_get_drvdata(dev);
> +
> + regmap_write(ldev->regmap, LOCOMO_C32K, 0x00);
> +
> + return 0;
> +}
> +#endif
> +
> +static SIMPLE_DEV_PM_OPS(locomo_pm, locomo_suspend, locomo_resume);
> +
> +static const struct regmap_config locomo_regmap_config = {
> + .name = "LoCoMo",
> + .reg_bits = 8,
> + .reg_stride = 4,
> + .val_bits = 16,
> + .cache_type = REGCACHE_NONE,
> + .max_register = 0xec,
> +};
> +
> +static int locomo_probe(struct platform_device *pdev)
> +{
> + struct locomo_platform_data *pdata = dev_get_platdata(&pdev->dev);
> + struct resource *res;
> + void __iomem *base;
> + struct locomo *ldev;
> + unsigned int rev;
> + int ret;
> +
> + ldev = devm_kzalloc(&pdev->dev, sizeof(*ldev), GFP_KERNEL);
> + if (!ldev)
> + return -ENOMEM;
> +
> + spin_lock_init(&ldev->lock);
> + ldev->dev = &pdev->dev;
> +
> + ldev->irq = platform_get_irq(pdev, 0);
> + if (ldev->irq < 0)
> + return ldev->irq;
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + base = devm_ioremap_resource(&pdev->dev, res);
> + if (IS_ERR(base))
> + return PTR_ERR(base);
> +
> + ldev->regmap = devm_regmap_init_mmio(&pdev->dev, base,
> + &locomo_regmap_config);
> + if (IS_ERR(ldev->regmap))
> + return PTR_ERR(ldev->regmap);
> +
> + if (pdata) {
> + locomo_gpio_pdata.gpio_base = pdata->gpio_base;
> + locomo_lcd_pdata.comadj = pdata->comadj;
> + } else {
> + locomo_gpio_pdata.gpio_base = -1;
> + locomo_lcd_pdata.comadj = 128;
> + }
> +
> + platform_set_drvdata(pdev, ldev);
> +
> + regmap_read(ldev->regmap, LOCOMO_VER, &rev);
> + dev_info(&pdev->dev, "LoCoMo Chip: %04x\n", rev);
> +
> + /* Clear IRQ status and mask */
> + regmap_write(ldev->regmap, LOCOMO_ICR, 0);
> +
> + /* Longtime timer */
> + regmap_write(ldev->regmap, LOCOMO_LTINT, 0);
> +
> + ret = locomo_setup_irq(ldev);
> + if (ret)
> + return ret;
> +
> + ret = mfd_add_devices(&pdev->dev, pdev->id,
> + locomo_cells, ARRAY_SIZE(locomo_cells),
> + res, -1, ldev->domain);
> + if (ret)
> + goto err;
> +
> + return 0;
> +
> +err:
> + irq_set_chained_handler(ldev->irq, NULL);
> + irq_set_handler_data(ldev->irq, NULL);
> +
> + irq_domain_remove(ldev->domain);
> +
> + return ret;
> +}
> +
> +static int locomo_remove(struct platform_device *dev)
> +{
> + struct locomo *ldev = platform_get_drvdata(dev);
> +
> + mfd_remove_devices(&dev->dev);
> +
> + irq_set_chained_handler(ldev->irq, NULL);
> + irq_set_handler_data(ldev->irq, NULL);
> +
> + irq_domain_remove(ldev->domain);
> +
> + return 0;
> +}
> +
> +static struct platform_driver locomo_device_driver = {
> + .probe = locomo_probe,
> + .remove = locomo_remove,
> + .driver = {
> + .name = "locomo",
> + .pm = &locomo_pm,
> + },
> +};
> +
> +module_platform_driver(locomo_device_driver);
> +
> +MODULE_DESCRIPTION("Sharp LoCoMo core driver");
> +MODULE_LICENSE("GPL v2");
> +MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
> +MODULE_ALIAS("platform:locomo");
> diff --git a/include/linux/mfd/locomo.h b/include/linux/mfd/locomo.h
> new file mode 100644
> index 0000000..999e3de
> --- /dev/null
> +++ b/include/linux/mfd/locomo.h
> @@ -0,0 +1,169 @@
> +/*
> + * This file contains the definitions for the LoCoMo G/A Chip
> + *
> + * (C) Copyright 2015 Dmitry Eremin-Solenikov
> + * (C) Copyright 2004 John Lenz
> + *
> + * May be copied or modified under the terms of the GNU General Public
> + * License. See linux/COPYING for more information.
> + *
> + * Based on sa1111.h
> + */
> +
> +#ifndef _ASM_ARCH_LOCOMO
> +#define _ASM_ARCH_LOCOMO
> +
> +/* LOCOMO chip version */
> +#define LOCOMO_VER 0x00
> +
> +/* Pin status */
> +#define LOCOMO_ST 0x04
> +
> +/* Pin status */
> +#define LOCOMO_C32K 0x08
> +
> +/* Interrupt controller */
> +#define LOCOMO_ICR 0x0c
> +#define LOCOMO_ICR_MASK_SHIFT 4
> +#define LOCOMO_ICR_STATUS_SHIFT 8
> +
> +/* Touch panel controller */
> +#define LOCOMO_ASD 0x20 /* AD start delay */
> +#define LOCOMO_HSD 0x28 /* HSYS delay */
> +#define LOCOMO_HSC 0x2c /* HSYS period */
> +#define LOCOMO_TADC 0x30 /* tablet ADC clock */
> +
> +/* Backlight controller: TFT signal */
> +#define LOCOMO_TC 0x38 /* TFT control signal */
> +#define LOCOMO_CPSD 0x3c /* CPS delay */
> +
> +/* Keyboard controller */
> +#define LOCOMO_KIB 0x40 /* KIB level */
> +#define LOCOMO_KSC 0x44 /* KSTRB control */
> +#define LOCOMO_KCMD 0x48 /* KSTRB command */
> +#define LOCOMO_KIC 0x4c /* Key interrupt */
> +
> +/* Audio clock */
> +#define LOCOMO_ACC 0x54 /* Audio clock */
> +#define LOCOMO_ACC_XON 0x80
> +#define LOCOMO_ACC_XEN 0x40
> +#define LOCOMO_ACC_XSEL0 0x00
> +#define LOCOMO_ACC_XSEL1 0x20
> +#define LOCOMO_ACC_MCLKEN 0x10
> +#define LOCOMO_ACC_64FSEN 0x08
> +#define LOCOMO_ACC_CLKSEL000 0x00 /* mclk 2 */
> +#define LOCOMO_ACC_CLKSEL001 0x01 /* mclk 3 */
> +#define LOCOMO_ACC_CLKSEL010 0x02 /* mclk 4 */
> +#define LOCOMO_ACC_CLKSEL011 0x03 /* mclk 6 */
> +#define LOCOMO_ACC_CLKSEL100 0x04 /* mclk 8 */
> +#define LOCOMO_ACC_CLKSEL101 0x05 /* mclk 12 */
> +
> +/* SPI interface */
> +#define LOCOMO_SPIMD 0x60 /* SPI mode setting */
> +#define LOCOMO_SPIMD_LOOPBACK BIT(15) /* loopback tx to rx */
> +#define LOCOMO_SPIMD_MSB1ST BIT(14) /* send MSB first */
> +#define LOCOMO_SPIMD_DOSTAT BIT(13) /* transmit line is idle high */
> +#define LOCOMO_SPIMD_TCPOL BIT(11) /* transmit CPOL (maybe affects CPHA) */
> +#define LOCOMO_SPIMD_RCPOL BIT(10) /* receive CPOL (maybe affects CPHA) */
> +#define LOCOMO_SPIMD_TDINV BIT(9) /* invert transmit line */
> +#define LOCOMO_SPIMD_RDINV BIT(8) /* invert receive line */
> +#define LOCOMO_SPIMD_XON BIT(7) /* enable spi controller clock */
> +#define LOCOMO_SPIMD_XEN BIT(6) /* clock bit write enable */
> +#define LOCOMO_SPIMD_XSEL 0x0018 /* clock select */
> +/* xon must be off when enabling xen, wait 300 us before xon -> 1 */
> +#define CLOCK_18MHZ 0 /* 18,432 MHz clock */
> +#define CLOCK_22MHZ 1 /* 22,5792 MHz clock */
> +#define CLOCK_25MHZ 2 /* 24,576 MHz clock */
> +#define LOCOMO_SPIMD_CLKSEL 0x7
> +#define DIV_1 0 /* don't divide clock */
> +#define DIV_2 1 /* divide clock by two */
> +#define DIV_4 2 /* divide clock by four */
> +#define DIV_8 3 /* divide clock by eight */
> +#define DIV_64 4 /* divide clock by 64 */
> +
> +#define LOCOMO_SPICT 0x64 /* SPI mode control */
> +#define LOCOMO_SPICT_CRC16_7_B BIT(15) /* 0: crc16 1: crc7 */
> +#define LOCOMO_SPICT_CRCRX_TX_B BIT(14)
> +#define LOCOMO_SPICT_CRCRESET_B BIT(13)
> +#define LOCOMO_SPICT_CEN BIT(7) /* ?? enable */
> +#define LOCOMO_SPICT_CS BIT(6) /* chip select */
> +#define LOCOMO_SPICT_UNIT16 BIT(5) /* 0: 8 bit, 1: 16 bit*/
> +#define LOCOMO_SPICT_ALIGNEN BIT(2) /* align transfer enable */
> +#define LOCOMO_SPICT_RXWEN BIT(1) /* continuous receive */
> +#define LOCOMO_SPICT_RXUEN BIT(0) /* aligned receive */
> +
> +#define LOCOMO_SPIST 0x68 /* SPI status */
> +#define LOCOMO_SPI_TEND BIT(3) /* Transfer end bit */
> +#define LOCOMO_SPI_REND BIT(2) /* Receive end bit */
> +#define LOCOMO_SPI_RFW BIT(1) /* write buffer bit */
> +#define LOCOMO_SPI_RFR BIT(0) /* read buffer bit */
> +
> +#define LOCOMO_SPIIS 0x70 /* SPI interrupt status */
> +#define LOCOMO_SPIWE 0x74 /* SPI interrupt status write enable */
> +#define LOCOMO_SPIIE 0x78 /* SPI interrupt enable */
> +#define LOCOMO_SPIIR 0x7c /* SPI interrupt request */
> +#define LOCOMO_SPITD 0x80 /* SPI transfer data write */
> +#define LOCOMO_SPIRD 0x84 /* SPI receive data read */
> +#define LOCOMO_SPITS 0x88 /* SPI transfer data shift */
> +#define LOCOMO_SPIRS 0x8C /* SPI receive data shift */
> +
> +/* GPIO */
> +#define LOCOMO_GPD 0x90 /* GPIO direction */
> +#define LOCOMO_GPE 0x94 /* GPIO input enable */
> +#define LOCOMO_GPL 0x98 /* GPIO level */
> +#define LOCOMO_GPO 0x9c /* GPIO out data setting */
> +#define LOCOMO_GRIE 0xa0 /* GPIO rise detection */
> +#define LOCOMO_GFIE 0xa4 /* GPIO fall detection */
> +#define LOCOMO_GIS 0xa8 /* GPIO edge detection status */
> +#define LOCOMO_GWE 0xac /* GPIO status write enable */
> +#define LOCOMO_GIE 0xb0 /* GPIO interrupt enable */
> +#define LOCOMO_GIR 0xb4 /* GPIO interrupt request */
> +
> +/* Front light adjustment controller */
> +#define LOCOMO_ALS 0xc8 /* Adjust light cycle */
> +#define LOCOMO_ALS_EN 0x8000
> +#define LOCOMO_ALD 0xcc /* Adjust light duty */
> +
> +/* PCM audio interface */
> +#define LOCOMO_PAIF 0xd0 /* PCM audio interface */
> +#define LOCOMO_PAIF_SCINV 0x20
> +#define LOCOMO_PAIF_SCEN 0x10
> +#define LOCOMO_PAIF_LRCRST 0x08
> +#define LOCOMO_PAIF_LRCEVE 0x04
> +#define LOCOMO_PAIF_LRCINV 0x02
> +#define LOCOMO_PAIF_LRCEN 0x01
> +
> +/* Long time timer */
> +#define LOCOMO_LTC 0xd8 /* LTC interrupt setting */
> +#define LOCOMO_LTINT 0xdc /* LTC interrupt */
> +
> +/* DAC control signal for LCD (COMADJ ) */
> +#define LOCOMO_DAC 0xe0
> +/* DAC control */
> +#define LOCOMO_DAC_SCLOEB 0x08 /* SCL pin output data */
> +#define LOCOMO_DAC_TEST 0x04 /* Test bit */
> +#define LOCOMO_DAC_SDA 0x02 /* SDA pin level (read-only) */
> +#define LOCOMO_DAC_SDAOEB 0x01 /* SDA pin output data */
> +
> +/* LED controller */
> +#define LOCOMO_LPT0 0xe8
> +#define LOCOMO_LPT1 0xec
> +#define LOCOMO_LPT_TOFH 0x80
> +#define LOCOMO_LPT_TOFL 0x08
> +#define LOCOMO_LPT_TOH(TOH) ((TOH & 0x7) << 4)
> +#define LOCOMO_LPT_TOL(TOL) ((TOL & 0x7))
> +
> +struct locomo_gpio_platform_data {
> + unsigned int gpio_base;
> +};
> +
> +struct locomo_lcd_platform_data {
> + u8 comadj;
> +};
> +
> +struct locomo_platform_data {
> + unsigned int gpio_base;
> + u8 comadj;
> +};
> +
> +#endif
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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^ permalink raw reply [flat|nested] 27+ messages in thread* Re: [PATCH v4 01/18] mfd: add new driver for Sharp LoCoMo
2015-05-27 10:27 ` Lee Jones
@ 2015-05-27 14:55 ` Dmitry Eremin-Solenikov
2015-05-28 11:58 ` Lee Jones
0 siblings, 1 reply; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-27 14:55 UTC (permalink / raw)
To: Lee Jones
Cc: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Mark Brown,
Jingoo Han, Liam Girdwood, Andrea Adami, linux-arm-kernel,
linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-input,
linux-spi, alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org
2015-05-27 13:27 GMT+03:00 Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>:
> On Mon, 25 May 2015, Dmitry Eremin-Solenikov wrote:
>
>> LoCoMo is a GA used on Sharp Zaurus SL-5x00. Current driver does has
>> several design issues (special bus instead of platform bus, doesn't use
>> mfd-core, etc).
>>
>> Implement 'core' parts of locomo support as an mfd driver.
>>
>> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>> ---
>
> These things are much easier to re-review if you keep a change-log
> here.
>
>> drivers/mfd/Kconfig | 10 ++
>> drivers/mfd/Makefile | 1 +
>> drivers/mfd/locomo.c | 336 +++++++++++++++++++++++++++++++++++++++++++++
>> include/linux/mfd/locomo.h | 169 +++++++++++++++++++++++
>> 4 files changed, 516 insertions(+)
>> create mode 100644 drivers/mfd/locomo.c
>> create mode 100644 include/linux/mfd/locomo.h
>
> Looks good now though:
> Acked-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
>
> How do you plan for this to be merged?
I'd like for this to be merged either through mfd tree or through the
arm-soc (or rmk's ARM) tree.
Some of the respective maintainers already gave their blessing for
this patchset to be merged
not through their subsystem trees.
[skipped the patch]
--
With best wishes
Dmitry
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^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: [PATCH v4 01/18] mfd: add new driver for Sharp LoCoMo
2015-05-27 14:55 ` Dmitry Eremin-Solenikov
@ 2015-05-28 11:58 ` Lee Jones
2015-05-28 19:07 ` Dmitry Eremin-Solenikov
0 siblings, 1 reply; 27+ messages in thread
From: Lee Jones @ 2015-05-28 11:58 UTC (permalink / raw)
To: Dmitry Eremin-Solenikov
Cc: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Mark Brown,
Jingoo Han, Liam Girdwood, Andrea Adami, linux-arm-kernel,
linux-gpio@vger.kernel.org, linux-input, linux-spi,
alsa-devel@alsa-project.org
On Wed, 27 May 2015, Dmitry Eremin-Solenikov wrote:
> 2015-05-27 13:27 GMT+03:00 Lee Jones <lee.jones@linaro.org>:
> > On Mon, 25 May 2015, Dmitry Eremin-Solenikov wrote:
> >
> >> LoCoMo is a GA used on Sharp Zaurus SL-5x00. Current driver does has
> >> several design issues (special bus instead of platform bus, doesn't use
> >> mfd-core, etc).
> >>
> >> Implement 'core' parts of locomo support as an mfd driver.
> >>
> >> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
> >> ---
> >
> > These things are much easier to re-review if you keep a change-log
> > here.
> >
> >> drivers/mfd/Kconfig | 10 ++
> >> drivers/mfd/Makefile | 1 +
> >> drivers/mfd/locomo.c | 336 +++++++++++++++++++++++++++++++++++++++++++++
> >> include/linux/mfd/locomo.h | 169 +++++++++++++++++++++++
> >> 4 files changed, 516 insertions(+)
> >> create mode 100644 drivers/mfd/locomo.c
> >> create mode 100644 include/linux/mfd/locomo.h
> >
> > Looks good now though:
> > Acked-by: Lee Jones <lee.jones@linaro.org>
> >
> > How do you plan for this to be merged?
>
> I'd like for this to be merged either through mfd tree or through the
> arm-soc (or rmk's ARM) tree.
> Some of the respective maintainers already gave their blessing for
> this patchset to be merged
> not through their subsystem trees.
I can take it through MFD. Once you have all the required Acks,
resubmit the set with them all applied with a note in the cover-letter
to that affect and I'll apply.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
--
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^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: [PATCH v4 01/18] mfd: add new driver for Sharp LoCoMo
2015-05-28 11:58 ` Lee Jones
@ 2015-05-28 19:07 ` Dmitry Eremin-Solenikov
2015-06-02 11:33 ` Linus Walleij
0 siblings, 1 reply; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-28 19:07 UTC (permalink / raw)
To: Lee Jones
Cc: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Mark Brown,
Jingoo Han, Liam Girdwood, Andrea Adami, linux-arm-kernel,
linux-gpio@vger.kernel.org, linux-input, linux-spi,
alsa-devel@alsa-project.org
2015-05-28 14:58 GMT+03:00 Lee Jones <lee.jones@linaro.org>:
> On Wed, 27 May 2015, Dmitry Eremin-Solenikov wrote:
>
>> 2015-05-27 13:27 GMT+03:00 Lee Jones <lee.jones@linaro.org>:
>> > On Mon, 25 May 2015, Dmitry Eremin-Solenikov wrote:
>> >
>> >> LoCoMo is a GA used on Sharp Zaurus SL-5x00. Current driver does has
>> >> several design issues (special bus instead of platform bus, doesn't use
>> >> mfd-core, etc).
>> >>
>> >> Implement 'core' parts of locomo support as an mfd driver.
>> >>
>> >> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
>> >> ---
>> >
>> > These things are much easier to re-review if you keep a change-log
>> > here.
>> >
>> >> drivers/mfd/Kconfig | 10 ++
>> >> drivers/mfd/Makefile | 1 +
>> >> drivers/mfd/locomo.c | 336 +++++++++++++++++++++++++++++++++++++++++++++
>> >> include/linux/mfd/locomo.h | 169 +++++++++++++++++++++++
>> >> 4 files changed, 516 insertions(+)
>> >> create mode 100644 drivers/mfd/locomo.c
>> >> create mode 100644 include/linux/mfd/locomo.h
>> >
>> > Looks good now though:
>> > Acked-by: Lee Jones <lee.jones@linaro.org>
>> >
>> > How do you plan for this to be merged?
>>
>> I'd like for this to be merged either through mfd tree or through the
>> arm-soc (or rmk's ARM) tree.
>> Some of the respective maintainers already gave their blessing for
>> this patchset to be merged
>> not through their subsystem trees.
>
> I can take it through MFD. Once you have all the required Acks,
> resubmit the set with them all applied with a note in the cover-letter
> to that affect and I'll apply.
Thank you. This is what I still miss:
* Russell, could you please review sa1100 parts?
* Jingoo, could you please review the backlight part?
* Mark, same question for the updated SPI driver.
* Linus, can I assume that yours 'Reviewed-by' mean
'Acked-by' for the GPIO-related parts?
--
With best wishes
Dmitry
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: [PATCH v4 01/18] mfd: add new driver for Sharp LoCoMo
2015-05-28 19:07 ` Dmitry Eremin-Solenikov
@ 2015-06-02 11:33 ` Linus Walleij
0 siblings, 0 replies; 27+ messages in thread
From: Linus Walleij @ 2015-06-02 11:33 UTC (permalink / raw)
To: Dmitry Eremin-Solenikov
Cc: Lee Jones, Russell King, Daniel Mack, Robert Jarzmik,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Mark Brown,
Jingoo Han, Liam Girdwood, Andrea Adami, linux-arm-kernel,
linux-gpio@vger.kernel.org, linux-input, linux-spi,
alsa-devel@alsa-project.org
On Thu, May 28, 2015 at 9:07 PM, Dmitry Eremin-Solenikov
<dbaryshkov@gmail.com> wrote:
> * Linus, can I assume that yours 'Reviewed-by' mean
> 'Acked-by' for the GPIO-related parts?
Yes.
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 27+ messages in thread
* [PATCH v4 02/18] leds: port locomo leds driver to new locomo core
2015-05-25 11:41 [PATCH v4 00/18] new MFD LoCoMo driver set Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 01/18] mfd: add new driver for Sharp LoCoMo Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 03/18] input: convert LoCoMo keyboard driver to use " Dmitry Eremin-Solenikov
` (7 subsequent siblings)
9 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel, linux-gpio, linux-input, linux-spi, alsa-devel
Adapt locomo leds driver to new locomo core setup.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
---
drivers/leds/Kconfig | 2 +-
drivers/leds/leds-locomo.c | 117 +++++++++++++++++++++++----------------------
2 files changed, 61 insertions(+), 58 deletions(-)
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 966b960..d086aac 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -79,7 +79,7 @@ config LEDS_LM3642
config LEDS_LOCOMO
tristate "LED Support for Locomo device"
depends on LEDS_CLASS
- depends on SHARP_LOCOMO
+ depends on MFD_LOCOMO
help
This option enables support for the LEDs on Sharp Locomo.
Zaurus models SL-5500 and SL-5600.
diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c
index 80ba048..a4286e9 100644
--- a/drivers/leds/leds-locomo.c
+++ b/drivers/leds/leds-locomo.c
@@ -9,89 +9,92 @@
*/
#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
#include <linux/leds.h>
+#include <linux/mfd/locomo.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
-#include <mach/hardware.h>
-#include <asm/hardware/locomo.h>
+struct locomo_led {
+ struct led_classdev led;
+ struct regmap *regmap;
+ unsigned int reg;
+};
static void locomoled_brightness_set(struct led_classdev *led_cdev,
- enum led_brightness value, int offset)
-{
- struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
- unsigned long flags;
-
- local_irq_save(flags);
- if (value)
- locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
- else
- locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
- local_irq_restore(flags);
-}
-
-static void locomoled_brightness_set0(struct led_classdev *led_cdev,
enum led_brightness value)
{
- locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
+ struct locomo_led *led = container_of(led_cdev, struct locomo_led, led);
+
+ regmap_write(led->regmap, led->reg,
+ value ? LOCOMO_LPT_TOFH : LOCOMO_LPT_TOFL);
}
-static void locomoled_brightness_set1(struct led_classdev *led_cdev,
- enum led_brightness value)
+static int locomo_led_register(
+ struct device *dev,
+ struct locomo_led *led,
+ const char *name,
+ const char *trigger,
+ struct regmap *regmap,
+ unsigned int reg)
{
- locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
+ led->led.name = name;
+ led->led.flags = LED_CORE_SUSPENDRESUME;
+ led->led.default_trigger = trigger;
+ led->led.brightness_set = locomoled_brightness_set;
+ led->regmap = regmap;
+ led->reg = reg;
+
+ return devm_led_classdev_register(dev, &led->led);
}
-static struct led_classdev locomo_led0 = {
- .name = "locomo:amber:charge",
- .default_trigger = "main-battery-charging",
- .brightness_set = locomoled_brightness_set0,
-};
-
-static struct led_classdev locomo_led1 = {
- .name = "locomo:green:mail",
- .default_trigger = "nand-disk",
- .brightness_set = locomoled_brightness_set1,
-};
-
-static int locomoled_probe(struct locomo_dev *ldev)
+static int locomoled_probe(struct platform_device *pdev)
{
int ret;
-
- ret = led_classdev_register(&ldev->dev, &locomo_led0);
+ struct locomo_led *leds;
+ struct regmap *regmap;
+
+ leds = devm_kzalloc(&pdev->dev, 2 * sizeof(*leds), GFP_KERNEL);
+ if (!leds)
+ return -ENOMEM;
+
+ regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!regmap)
+ return -ENODEV;
+
+ ret = locomo_led_register(
+ &pdev->dev,
+ leds,
+ "locomo:amber:charge",
+ "main-battery-charging",
+ regmap,
+ LOCOMO_LPT0);
if (ret < 0)
return ret;
- ret = led_classdev_register(&ldev->dev, &locomo_led1);
+ ret = locomo_led_register(
+ &pdev->dev,
+ leds + 1,
+ "locomo:green:mail",
+ "mmc0",
+ regmap,
+ LOCOMO_LPT1);
if (ret < 0)
- led_classdev_unregister(&locomo_led0);
-
- return ret;
-}
+ return ret;
-static int locomoled_remove(struct locomo_dev *dev)
-{
- led_classdev_unregister(&locomo_led0);
- led_classdev_unregister(&locomo_led1);
return 0;
}
-static struct locomo_driver locomoled_driver = {
- .drv = {
- .name = "locomoled"
+static struct platform_driver locomoled_driver = {
+ .driver = {
+ .name = "locomo-led"
},
- .devid = LOCOMO_DEVID_LED,
.probe = locomoled_probe,
- .remove = locomoled_remove,
};
-static int __init locomoled_init(void)
-{
- return locomo_driver_register(&locomoled_driver);
-}
-module_init(locomoled_init);
+module_platform_driver(locomoled_driver);
MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
MODULE_DESCRIPTION("Locomo LED driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:locomo-led");
--
2.1.4
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 03/18] input: convert LoCoMo keyboard driver to use new locomo core
2015-05-25 11:41 [PATCH v4 00/18] new MFD LoCoMo driver set Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 01/18] mfd: add new driver for Sharp LoCoMo Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 02/18] leds: port locomo leds driver to new locomo core Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
[not found] ` <1432554113-26280-4-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-25 11:41 ` [PATCH v4 05/18] input: make LoCoMo keyboard driver support both poodle and collie Dmitry Eremin-Solenikov
` (6 subsequent siblings)
9 siblings, 1 reply; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel, linux-gpio, linux-input, linux-spi, alsa-devel
As LoCoMo is switching to new device model, adapt keyboard driver to
support new locomo core driver.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
drivers/input/keyboard/Kconfig | 2 +-
drivers/input/keyboard/locomokbd.c | 252 ++++++++++++++++++-------------------
2 files changed, 121 insertions(+), 133 deletions(-)
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 106fbac..9a20487 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -337,7 +337,7 @@ config KEYBOARD_LM8333
config KEYBOARD_LOCOMO
tristate "LoCoMo Keyboard Support"
- depends on SHARP_LOCOMO
+ depends on MFD_LOCOMO
help
Say Y here if you are running Linux on a Sharp Zaurus Collie or Poodle based PDA
diff --git a/drivers/input/keyboard/locomokbd.c b/drivers/input/keyboard/locomokbd.c
index c94d610..9742c79 100644
--- a/drivers/input/keyboard/locomokbd.c
+++ b/drivers/input/keyboard/locomokbd.c
@@ -23,28 +23,25 @@
*
*/
-#include <linux/slab.h>
-#include <linux/module.h>
+#include <linux/delay.h>
#include <linux/init.h>
#include <linux/input.h>
-#include <linux/delay.h>
-#include <linux/device.h>
#include <linux/interrupt.h>
-#include <linux/ioport.h>
-
-#include <asm/hardware/locomo.h>
-#include <asm/irq.h>
-
-MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
-MODULE_DESCRIPTION("LoCoMo keyboard driver");
-MODULE_LICENSE("GPL");
-
-#define LOCOMOKBD_NUMKEYS 128
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/mfd/locomo.h>
#define KEY_ACTIVITY KEY_F16
#define KEY_CONTACT KEY_F18
#define KEY_CENTER KEY_F15
+#define KB_ROWS 16
+#define KB_COLS 8
+#define LOCOMOKBD_NUMKEYS (KB_ROWS * KB_COLS)
+#define SCANCODE(c, r) (((c)<<4) + (r) + 1)
+
static const unsigned char
locomokbd_keycode[LOCOMOKBD_NUMKEYS] = {
0, KEY_ESC, KEY_ACTIVITY, 0, 0, 0, 0, 0, 0, 0, /* 0 - 9 */
@@ -62,20 +59,14 @@ locomokbd_keycode[LOCOMOKBD_NUMKEYS] = {
KEY_M, KEY_SPACE, KEY_V, KEY_APOSTROPHE, KEY_SLASH, 0, 0, 0 /* 120 - 128 */
};
-#define KB_ROWS 16
-#define KB_COLS 8
-#define KB_ROWMASK(r) (1 << (r))
-#define SCANCODE(c,r) ( ((c)<<4) + (r) + 1 )
-
#define KB_DELAY 8
-#define SCAN_INTERVAL (HZ/10)
struct locomokbd {
unsigned char keycode[LOCOMOKBD_NUMKEYS];
struct input_dev *input;
- char phys[32];
- unsigned long base;
+ struct regmap *regmap;
+ int irq;
spinlock_t lock;
struct timer_list timer;
@@ -84,37 +75,33 @@ struct locomokbd {
};
/* helper functions for reading the keyboard matrix */
-static inline void locomokbd_charge_all(unsigned long membase)
+static void locomokbd_charge_all(struct locomokbd *locomokbd)
{
- locomo_writel(0x00FF, membase + LOCOMO_KSC);
+ regmap_write(locomokbd->regmap, LOCOMO_KSC, 0x00ff);
}
-static inline void locomokbd_activate_all(unsigned long membase)
+static void locomokbd_activate_all(struct locomokbd *locomokbd)
{
- unsigned long r;
-
- locomo_writel(0, membase + LOCOMO_KSC);
- r = locomo_readl(membase + LOCOMO_KIC);
- r &= 0xFEFF;
- locomo_writel(r, membase + LOCOMO_KIC);
+ regmap_write(locomokbd->regmap, LOCOMO_KSC, 0);
+ regmap_update_bits(locomokbd->regmap, LOCOMO_KIC, 0x100, 0);
}
-static inline void locomokbd_activate_col(unsigned long membase, int col)
+static void locomokbd_activate_col(struct locomokbd *locomokbd, int col)
{
unsigned short nset;
unsigned short nbset;
- nset = 0xFF & ~(1 << col);
+ nset = 0xFF & ~BIT(col);
nbset = (nset << 8) + nset;
- locomo_writel(nbset, membase + LOCOMO_KSC);
+ regmap_write(locomokbd->regmap, LOCOMO_KSC, nbset);
}
-static inline void locomokbd_reset_col(unsigned long membase, int col)
+static void locomokbd_reset_col(struct locomokbd *locomokbd, int col)
{
unsigned short nbset;
- nbset = ((0xFF & ~(1 << col)) << 8) + 0xFF;
- locomo_writel(nbset, membase + LOCOMO_KSC);
+ nbset = ((0xFF & ~BIT(col)) << 8) + 0xFF;
+ regmap_write(locomokbd->regmap, LOCOMO_KSC, nbset);
}
/*
@@ -129,24 +116,25 @@ static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
unsigned int row, col, rowd;
unsigned long flags;
unsigned int num_pressed;
- unsigned long membase = locomokbd->base;
+ bool esc_pressed = false;
spin_lock_irqsave(&locomokbd->lock, flags);
- locomokbd_charge_all(membase);
+ locomokbd_charge_all(locomokbd);
num_pressed = 0;
for (col = 0; col < KB_COLS; col++) {
-
- locomokbd_activate_col(membase, col);
+ udelay(KB_DELAY);
+ locomokbd_activate_col(locomokbd, col);
udelay(KB_DELAY);
- rowd = ~locomo_readl(membase + LOCOMO_KIB);
+ regmap_read(locomokbd->regmap, LOCOMO_KIB, &rowd);
+ rowd = ~rowd;
for (row = 0; row < KB_ROWS; row++) {
unsigned int scancode, pressed, key;
scancode = SCANCODE(col, row);
- pressed = rowd & KB_ROWMASK(row);
+ pressed = rowd & BIT(row);
key = locomokbd->keycode[scancode];
input_report_key(locomokbd->input, key, pressed);
@@ -158,30 +146,32 @@ static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
/* The "Cancel/ESC" key is labeled "On/Off" on
* Collie and Poodle and should suspend the device
* if it was pressed for more than a second. */
- if (unlikely(key == KEY_ESC)) {
- if (!time_after(jiffies,
- locomokbd->suspend_jiffies + HZ))
- continue;
- if (locomokbd->count_cancel++
- != (HZ/SCAN_INTERVAL + 1))
- continue;
- input_event(locomokbd->input, EV_PWR,
- KEY_SUSPEND, 1);
- locomokbd->suspend_jiffies = jiffies;
- } else
- locomokbd->count_cancel = 0;
+ if (unlikely(key == KEY_ESC))
+ esc_pressed = true;
}
- locomokbd_reset_col(membase, col);
+ locomokbd_reset_col(locomokbd, col);
}
- locomokbd_activate_all(membase);
+ locomokbd_activate_all(locomokbd);
input_sync(locomokbd->input);
/* if any keys are pressed, enable the timer */
if (num_pressed)
- mod_timer(&locomokbd->timer, jiffies + SCAN_INTERVAL);
+ mod_timer(&locomokbd->timer, jiffies + msecs_to_jiffies(100));
else
+ regmap_update_bits(locomokbd->regmap, LOCOMO_KIC, 0x10, 0x10);
+
+
+ if (esc_pressed && time_after(jiffies,
+ locomokbd->suspend_jiffies + msecs_to_jiffies(1000))) {
+ if (locomokbd->count_cancel++ > 20) {
+ input_event(locomokbd->input, EV_PWR,
+ KEY_SUSPEND, 1);
+ locomokbd->suspend_jiffies = jiffies;
+ }
+ } else {
locomokbd->count_cancel = 0;
+ }
spin_unlock_irqrestore(&locomokbd->lock, flags);
}
@@ -192,18 +182,17 @@ static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
static irqreturn_t locomokbd_interrupt(int irq, void *dev_id)
{
struct locomokbd *locomokbd = dev_id;
- u16 r;
+ unsigned int r;
- r = locomo_readl(locomokbd->base + LOCOMO_KIC);
+ regmap_read(locomokbd->regmap, LOCOMO_KIC, &r);
if ((r & 0x0001) == 0)
return IRQ_HANDLED;
- locomo_writel(r & ~0x0100, locomokbd->base + LOCOMO_KIC); /* Ack */
+ /* Mask and Ack */
+ regmap_write(locomokbd->regmap, LOCOMO_KIC, r & ~0x110);
- /** wait chattering delay **/
- udelay(100);
+ mod_timer(&locomokbd->timer, jiffies + msecs_to_jiffies(1));
- locomokbd_scankeyboard(locomokbd);
return IRQ_HANDLED;
}
@@ -220,47 +209,39 @@ static void locomokbd_timer_callback(unsigned long data)
static int locomokbd_open(struct input_dev *dev)
{
struct locomokbd *locomokbd = input_get_drvdata(dev);
- u16 r;
-
- r = locomo_readl(locomokbd->base + LOCOMO_KIC) | 0x0010;
- locomo_writel(r, locomokbd->base + LOCOMO_KIC);
- return 0;
+
+ return regmap_update_bits(locomokbd->regmap, LOCOMO_KIC, 0x10, 0x10);
}
static void locomokbd_close(struct input_dev *dev)
{
struct locomokbd *locomokbd = input_get_drvdata(dev);
- u16 r;
-
- r = locomo_readl(locomokbd->base + LOCOMO_KIC) & ~0x0010;
- locomo_writel(r, locomokbd->base + LOCOMO_KIC);
+
+ regmap_update_bits(locomokbd->regmap, LOCOMO_KIC, 0x10, 0x0);
+
+ del_timer_sync(&locomokbd->timer);
}
-static int locomokbd_probe(struct locomo_dev *dev)
+static int locomokbd_probe(struct platform_device *dev)
{
struct locomokbd *locomokbd;
struct input_dev *input_dev;
int i, err;
- locomokbd = kzalloc(sizeof(struct locomokbd), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!locomokbd || !input_dev) {
- err = -ENOMEM;
- goto err_free_mem;
- }
+ locomokbd = devm_kzalloc(&dev->dev, sizeof(struct locomokbd),
+ GFP_KERNEL);
+ if (!locomokbd)
+ return -ENOMEM;
- /* try and claim memory region */
- if (!request_mem_region((unsigned long) dev->mapbase,
- dev->length,
- LOCOMO_DRIVER_NAME(dev))) {
- err = -EBUSY;
- printk(KERN_ERR "locomokbd: Can't acquire access to io memory for keyboard\n");
- goto err_free_mem;
- }
+ locomokbd->regmap = dev_get_regmap(dev->dev.parent, NULL);
+ if (!locomokbd->regmap)
+ return -EINVAL;
- locomo_set_drvdata(dev, locomokbd);
+ locomokbd->irq = platform_get_irq(dev, 0);
+ if (locomokbd->irq < 0)
+ return -ENXIO;
- locomokbd->base = (unsigned long) dev->mapbase;
+ platform_set_drvdata(dev, locomokbd);
spin_lock_init(&locomokbd->lock);
@@ -270,11 +251,13 @@ static int locomokbd_probe(struct locomo_dev *dev)
locomokbd->suspend_jiffies = jiffies;
- locomokbd->input = input_dev;
- strcpy(locomokbd->phys, "locomokbd/input0");
+ input_dev = devm_input_allocate_device(&dev->dev);
+ if (!input_dev)
+ return -ENOMEM;
+ locomokbd->input = input_dev;
input_dev->name = "LoCoMo keyboard";
- input_dev->phys = locomokbd->phys;
+ input_dev->phys = "locomokbd/input0";
input_dev->id.bustype = BUS_HOST;
input_dev->id.vendor = 0x0001;
input_dev->id.product = 0x0001;
@@ -291,72 +274,77 @@ static int locomokbd_probe(struct locomo_dev *dev)
input_set_drvdata(input_dev, locomokbd);
- memcpy(locomokbd->keycode, locomokbd_keycode, sizeof(locomokbd->keycode));
+ memcpy(locomokbd->keycode,
+ locomokbd_keycode,
+ sizeof(locomokbd->keycode));
+
for (i = 0; i < LOCOMOKBD_NUMKEYS; i++)
- set_bit(locomokbd->keycode[i], input_dev->keybit);
- clear_bit(0, input_dev->keybit);
+ input_set_capability(input_dev, EV_KEY, locomokbd->keycode[i]);
+ input_set_capability(input_dev, EV_PWR, KEY_SUSPEND);
+ __set_bit(EV_REP, input_dev->evbit);
+
+ regmap_write(locomokbd->regmap, LOCOMO_KCMD, 1);
+ regmap_write(locomokbd->regmap, LOCOMO_KSC, 0x0);
+ regmap_write(locomokbd->regmap, LOCOMO_KIC, 0x0);
/* attempt to get the interrupt */
- err = request_irq(dev->irq[0], locomokbd_interrupt, 0, "locomokbd", locomokbd);
+ err = devm_request_irq(&dev->dev, locomokbd->irq, locomokbd_interrupt,
+ 0, "locomokbd", locomokbd);
if (err) {
- printk(KERN_ERR "locomokbd: Can't get irq for keyboard\n");
- goto err_release_region;
+ dev_err(&dev->dev, "Could not get keyboard IRQ\n");
+ return err;
}
err = input_register_device(locomokbd->input);
if (err)
- goto err_free_irq;
+ return err;
return 0;
- err_free_irq:
- free_irq(dev->irq[0], locomokbd);
- err_release_region:
- release_mem_region((unsigned long) dev->mapbase, dev->length);
- locomo_set_drvdata(dev, NULL);
- err_free_mem:
- input_free_device(input_dev);
- kfree(locomokbd);
-
return err;
}
-static int locomokbd_remove(struct locomo_dev *dev)
+static int __maybe_unused locomokbd_suspend(struct device *dev)
{
- struct locomokbd *locomokbd = locomo_get_drvdata(dev);
+ struct locomokbd *locomokbd = dev_get_drvdata(dev);
- free_irq(dev->irq[0], locomokbd);
+ regmap_update_bits(locomokbd->regmap, LOCOMO_KIC, 0x10, 0x0);
del_timer_sync(&locomokbd->timer);
- input_unregister_device(locomokbd->input);
- locomo_set_drvdata(dev, NULL);
+ return 0;
+}
+
+static int __maybe_unused locomokbd_resume(struct device *dev)
+{
+ struct locomokbd *locomokbd = dev_get_drvdata(dev);
- release_mem_region((unsigned long) dev->mapbase, dev->length);
+ regmap_write(locomokbd->regmap, LOCOMO_KCMD, 1);
+ regmap_write(locomokbd->regmap, LOCOMO_KSC, 0);
+ regmap_write(locomokbd->regmap, LOCOMO_KIC, 0x0);
- kfree(locomokbd);
+ /* Rescan keyboard only if we are open by somebody */
+ mutex_lock(&locomokbd->input->mutex);
+ if (locomokbd->input->users)
+ locomokbd_scankeyboard(locomokbd);
+ mutex_unlock(&locomokbd->input->mutex);
return 0;
}
-static struct locomo_driver keyboard_driver = {
- .drv = {
- .name = "locomokbd"
+static SIMPLE_DEV_PM_OPS(locomo_kbd_pm, locomokbd_suspend, locomokbd_resume);
+
+static struct platform_driver locomokbd_driver = {
+ .driver = {
+ .name = "locomo-kbd",
+ .pm = &locomo_kbd_pm,
},
- .devid = LOCOMO_DEVID_KEYBOARD,
.probe = locomokbd_probe,
- .remove = locomokbd_remove,
};
-static int __init locomokbd_init(void)
-{
- return locomo_driver_register(&keyboard_driver);
-}
+module_platform_driver(locomokbd_driver);
-static void __exit locomokbd_exit(void)
-{
- locomo_driver_unregister(&keyboard_driver);
-}
-
-module_init(locomokbd_init);
-module_exit(locomokbd_exit);
+MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
+MODULE_DESCRIPTION("LoCoMo keyboard driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:locomo-kbd");
--
2.1.4
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 05/18] input: make LoCoMo keyboard driver support both poodle and collie
2015-05-25 11:41 [PATCH v4 00/18] new MFD LoCoMo driver set Dmitry Eremin-Solenikov
` (2 preceding siblings ...)
2015-05-25 11:41 ` [PATCH v4 03/18] input: convert LoCoMo keyboard driver to use " Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
[not found] ` <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
` (5 subsequent siblings)
9 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel, linux-gpio, linux-input, linux-spi, alsa-devel
Keyboards on collie and poodle differ only in wiring of 'Home' key.
Instead of complicating the driver with platform data, just check for
the machine for the time being. This will be converted to DTS property
sometime in the future.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
drivers/input/keyboard/locomokbd.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/input/keyboard/locomokbd.c b/drivers/input/keyboard/locomokbd.c
index 7645053..73d6e58 100644
--- a/drivers/input/keyboard/locomokbd.c
+++ b/drivers/input/keyboard/locomokbd.c
@@ -33,6 +33,9 @@
#include <linux/slab.h>
#include <linux/mfd/locomo.h>
+/* There is one minor difference between mappings on poodle and collie */
+#include <asm/mach-types.h>
+
#define KEY_ACTIVITY KEY_F16
#define KEY_CONTACT KEY_F18
#define KEY_CENTER KEY_F15
@@ -45,7 +48,7 @@
static const unsigned char
locomokbd_keycode[LOCOMOKBD_NUMKEYS] = {
0, KEY_ESC, KEY_ACTIVITY, 0, 0, 0, 0, 0, 0, 0, /* 0 - 9 */
- 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_HOME, KEY_CONTACT, /* 10 - 19 */
+ 0, 0, 0, 0, 0, 0, 0, KEY_MENU, 0, KEY_CONTACT, /* 10 - 19 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 20 - 29 */
0, 0, 0, KEY_CENTER, 0, KEY_MAIL, 0, 0, 0, 0, /* 30 - 39 */
0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RIGHT, /* 40 - 49 */
@@ -278,6 +281,11 @@ static int locomokbd_probe(struct platform_device *dev)
locomokbd_keycode,
sizeof(locomokbd->keycode));
+ if (machine_is_collie())
+ locomokbd->keycode[18] = KEY_HOME;
+ else
+ locomokbd->keycode[3] = KEY_HOME;
+
for (i = 0; i < LOCOMOKBD_NUMKEYS; i++)
input_set_capability(input_dev, EV_KEY, locomokbd->keycode[i]);
input_set_capability(input_dev, EV_PWR, KEY_SUSPEND);
--
2.1.4
^ permalink raw reply related [flat|nested] 27+ messages in thread[parent not found: <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]
* [PATCH v4 04/18] input: locomokbd: differentiate between two Enter keys
[not found] ` <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
[not found] ` <1432554113-26280-5-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-25 11:41 ` [PATCH v4 06/18] video: backlight: add new locomo backlight driver Dmitry Eremin-Solenikov
` (7 subsequent siblings)
8 siblings, 1 reply; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-gpio-u79uwXL29TY76Z2rM5mHXA,
linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-spi-u79uwXL29TY76Z2rM5mHXA,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
There are two Enter keys on collie/poodle keyboards. Make one of them to
generate KEY_KPENTER rather than just KEY_ENTER.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
drivers/input/keyboard/locomokbd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/input/keyboard/locomokbd.c b/drivers/input/keyboard/locomokbd.c
index 9742c79..7645053 100644
--- a/drivers/input/keyboard/locomokbd.c
+++ b/drivers/input/keyboard/locomokbd.c
@@ -50,7 +50,7 @@ locomokbd_keycode[LOCOMOKBD_NUMKEYS] = {
0, 0, 0, KEY_CENTER, 0, KEY_MAIL, 0, 0, 0, 0, /* 30 - 39 */
0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RIGHT, /* 40 - 49 */
KEY_UP, KEY_LEFT, 0, 0, KEY_P, 0, KEY_O, KEY_I, KEY_Y, KEY_T, /* 50 - 59 */
- KEY_E, KEY_W, 0, 0, 0, 0, KEY_DOWN, KEY_ENTER, 0, 0, /* 60 - 69 */
+ KEY_E, KEY_W, 0, 0, 0, 0, KEY_DOWN, KEY_KPENTER, 0, 0, /* 60 - 69 */
KEY_BACKSPACE, 0, KEY_L, KEY_U, KEY_H, KEY_R, KEY_D, KEY_Q, 0, 0, /* 70 - 79 */
0, 0, 0, 0, 0, 0, KEY_ENTER, KEY_RIGHTSHIFT, KEY_K, KEY_J, /* 80 - 89 */
KEY_G, KEY_F, KEY_X, KEY_S, 0, 0, 0, 0, 0, 0, /* 90 - 99 */
--
2.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-spi" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 06/18] video: backlight: add new locomo backlight driver
[not found] ` <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-25 11:41 ` [PATCH v4 04/18] input: locomokbd: differentiate between two Enter keys Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 07/18] video: lcd: add LoCoMo LCD driver Dmitry Eremin-Solenikov
` (6 subsequent siblings)
8 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-gpio-u79uwXL29TY76Z2rM5mHXA,
linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-spi-u79uwXL29TY76Z2rM5mHXA,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
Add new simple backlight driver - it cares only about PWM/frontlight
part of LoCoMo, it does not touch TFT settings and does not export TFT
power control.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
drivers/video/backlight/Kconfig | 6 +-
drivers/video/backlight/Makefile | 2 +-
drivers/video/backlight/locomo_bl.c | 153 ++++++++++++++++++++++++++++++++++++
3 files changed, 157 insertions(+), 4 deletions(-)
create mode 100644 drivers/video/backlight/locomo_bl.c
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 2d9923a..6c093e2 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -217,12 +217,12 @@ config BACKLIGHT_LM3533
levels.
config BACKLIGHT_LOCOMO
- tristate "Sharp LOCOMO LCD/Backlight Driver"
- depends on SHARP_LOCOMO
+ tristate "Sharp LOCOMO Backlight Driver"
+ depends on MFD_LOCOMO
default y
help
If you have a Sharp Zaurus SL-5500 (Collie) or SL-5600 (Poodle) say y to
- enable the LCD/backlight driver.
+ enable the backlight driver.
config BACKLIGHT_OMAP1
tristate "OMAP1 PWL-based LCD Backlight"
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index d67073f..2de73d2 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -39,7 +39,7 @@ obj-$(CONFIG_BACKLIGHT_IPAQ_MICRO) += ipaq_micro_bl.o
obj-$(CONFIG_BACKLIGHT_LM3533) += lm3533_bl.o
obj-$(CONFIG_BACKLIGHT_LM3630A) += lm3630a_bl.o
obj-$(CONFIG_BACKLIGHT_LM3639) += lm3639_bl.o
-obj-$(CONFIG_BACKLIGHT_LOCOMO) += locomolcd.o
+obj-$(CONFIG_BACKLIGHT_LOCOMO) += locomo_bl.o
obj-$(CONFIG_BACKLIGHT_LP855X) += lp855x_bl.o
obj-$(CONFIG_BACKLIGHT_LP8788) += lp8788_bl.o
obj-$(CONFIG_BACKLIGHT_LV5207LP) += lv5207lp.o
diff --git a/drivers/video/backlight/locomo_bl.c b/drivers/video/backlight/locomo_bl.c
new file mode 100644
index 0000000..cc60022
--- /dev/null
+++ b/drivers/video/backlight/locomo_bl.c
@@ -0,0 +1,153 @@
+/*
+ * Backlight control code for Sharp Zaurus SL-5500
+ *
+ * Copyright 2005 John Lenz <lenz-hcNo3dDEHLuVc3sceRu5cw@public.gmane.org>
+ * Maintainer: Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org> (unless John wants to :-)
+ * GPL v2
+ *
+ * This driver assumes single CPU. That's okay, because collie is
+ * slightly old hardware, and no one is going to retrofit second CPU to
+ * old PDA.
+ */
+
+#include <linux/backlight.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/gpio/consumer.h>
+#include <linux/mfd/locomo.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+struct locomo_bl {
+ struct regmap *regmap;
+ int current_intensity;
+ struct gpio_desc *fl_vr;
+};
+
+static const struct {
+ u16 duty, bpwf;
+ bool vr;
+} locomo_bl_pwm[] = {
+ { 0, 161, false },
+ { 117, 161, false },
+ { 163, 148, false },
+ { 194, 161, false },
+ { 194, 161, true },
+};
+
+static int locomo_bl_set_intensity(struct backlight_device *bd)
+{
+ int intensity = bd->props.brightness;
+ struct locomo_bl *bl = dev_get_drvdata(&bd->dev);
+
+ if (bd->props.power != FB_BLANK_UNBLANK)
+ intensity = 0;
+ if (bd->props.fb_blank != FB_BLANK_UNBLANK)
+ intensity = 0;
+ if (bd->props.state & BL_CORE_SUSPENDED)
+ intensity = 0;
+
+ gpiod_set_value(bl->fl_vr, locomo_bl_pwm[intensity].vr);
+
+ regmap_write(bl->regmap, LOCOMO_ALS, locomo_bl_pwm[intensity].bpwf);
+ usleep_range(100, 200);
+ regmap_write(bl->regmap, LOCOMO_ALD, locomo_bl_pwm[intensity].duty);
+ usleep_range(100, 200);
+ regmap_write(bl->regmap, LOCOMO_ALS, locomo_bl_pwm[intensity].bpwf |
+ LOCOMO_ALS_EN);
+
+ bl->current_intensity = intensity;
+ if (bd->props.state & BL_CORE_SUSPENDED)
+ regmap_write(bl->regmap, LOCOMO_ALS, 0x00);
+
+ return 0;
+}
+
+static int locomo_bl_get_intensity(struct backlight_device *bd)
+{
+ struct locomo_bl *bl = dev_get_drvdata(&bd->dev);
+
+ return bl->current_intensity;
+}
+
+static const struct backlight_ops locomo_bl_ops = {
+ .options = BL_CORE_SUSPENDRESUME,
+ .get_brightness = locomo_bl_get_intensity,
+ .update_status = locomo_bl_set_intensity,
+};
+
+static int locomo_bl_probe(struct platform_device *dev)
+{
+ struct backlight_properties props;
+ struct locomo_bl *bl;
+ struct backlight_device *locomo_bl_device;
+
+ bl = devm_kmalloc(&dev->dev, sizeof(struct locomo_bl), GFP_KERNEL);
+ if (!bl)
+ return -ENOMEM;
+
+ bl->regmap = dev_get_regmap(dev->dev.parent, NULL);
+ if (!bl->regmap)
+ return -ENODEV;
+
+ bl->fl_vr = devm_gpiod_get(&dev->dev, "flvr", GPIOD_OUT_LOW);
+ if (IS_ERR(bl->fl_vr))
+ return PTR_ERR(bl->fl_vr);
+
+ regmap_write(bl->regmap, LOCOMO_ALS, 0);
+ regmap_write(bl->regmap, LOCOMO_ALD, 0);
+
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.type = BACKLIGHT_RAW;
+ props.max_brightness = ARRAY_SIZE(locomo_bl_pwm) - 1;
+ props.brightness = props.max_brightness / 2;
+ locomo_bl_device = devm_backlight_device_register(&dev->dev,
+ "locomo-bl",
+ &dev->dev, bl,
+ &locomo_bl_ops, &props);
+
+ if (IS_ERR(locomo_bl_device))
+ return PTR_ERR(locomo_bl_device);
+
+ platform_set_drvdata(dev, locomo_bl_device);
+
+ /* Set up frontlight so that screen is readable */
+ backlight_update_status(locomo_bl_device);
+
+ return 0;
+}
+
+static void locomo_bl_shutdown(struct platform_device *dev)
+{
+ struct backlight_device *locomo_bl_device = platform_get_drvdata(dev);
+
+ locomo_bl_device->props.brightness = 0;
+ locomo_bl_device->props.power = 0;
+ locomo_bl_set_intensity(locomo_bl_device);
+}
+
+static int locomo_bl_remove(struct platform_device *dev)
+{
+ locomo_bl_shutdown(dev);
+
+ return 0;
+}
+
+static struct platform_driver locomo_bl_driver = {
+ .driver = {
+ .name = "locomo-backlight",
+ },
+ .probe = locomo_bl_probe,
+ .remove = locomo_bl_remove,
+ /* Turn off bl on power off/reboot */
+ .shutdown = locomo_bl_shutdown,
+};
+
+module_platform_driver(locomo_bl_driver);
+
+MODULE_AUTHOR("John Lenz <lenz-hcNo3dDEHLuVc3sceRu5cw@public.gmane.org>");
+MODULE_AUTHOR("Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>");
+MODULE_DESCRIPTION("LoCoMo Backlight driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:locomo-backlight");
--
2.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-spi" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 07/18] video: lcd: add LoCoMo LCD driver
[not found] ` <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-25 11:41 ` [PATCH v4 04/18] input: locomokbd: differentiate between two Enter keys Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 06/18] video: backlight: add new locomo backlight driver Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 08/18] gpio: port LoCoMo gpio support from old driver Dmitry Eremin-Solenikov
` (5 subsequent siblings)
8 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-gpio-u79uwXL29TY76Z2rM5mHXA,
linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-spi-u79uwXL29TY76Z2rM5mHXA,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
LoCoMo has some special handling for TFT screens attached to Collie and
Poodle. Implement that as a separate driver.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
drivers/video/backlight/Kconfig | 10 ++
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/locomo_lcd.c | 285 +++++++++++++++++++++++++++++++++++
3 files changed, 296 insertions(+)
create mode 100644 drivers/video/backlight/locomo_lcd.c
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 6c093e2..b2f995c 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -48,6 +48,16 @@ config LCD_LMS283GF05
SPI driver for Samsung LMS283GF05. This provides basic support
for powering the LCD up/down through a sysfs interface.
+config LCD_LOCOMO
+ tristate "Sharp LOCOMO LCD Driver"
+ depends on MFD_LOCOMO
+ select IIO
+ help
+ If you have a Sharp Zaurus SL-5500 (Collie) or SL-5600 (Poodle) say y to
+ enable the LCD driver. The panel starts up in power
+ off state, so you need this driver in order to see any
+ output.
+
config LCD_LTV350QV
tristate "Samsung LTV350QV LCD Panel"
depends on SPI_MASTER
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index 2de73d2..686cf1a 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_LCD_L4F00242T03) += l4f00242t03.o
obj-$(CONFIG_LCD_LD9040) += ld9040.o
obj-$(CONFIG_LCD_LMS283GF05) += lms283gf05.o
obj-$(CONFIG_LCD_LMS501KF03) += lms501kf03.o
+obj-$(CONFIG_LCD_LOCOMO) += locomo_lcd.o
obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o
obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o
obj-$(CONFIG_LCD_S6E63M0) += s6e63m0.o
diff --git a/drivers/video/backlight/locomo_lcd.c b/drivers/video/backlight/locomo_lcd.c
new file mode 100644
index 0000000..dc316cb
--- /dev/null
+++ b/drivers/video/backlight/locomo_lcd.c
@@ -0,0 +1,285 @@
+/*
+ * Backlight control code for Sharp Zaurus SL-5500
+ *
+ * Copyright 2005 John Lenz <lenz-hcNo3dDEHLuVc3sceRu5cw@public.gmane.org>
+ * Maintainer: Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org> (unless John wants to :-)
+ * GPL v2
+ *
+ * This driver assumes single CPU. That's okay, because collie is
+ * slightly old hardware, and no one is going to retrofit second CPU to
+ * old PDA.
+ */
+
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/gpio/consumer.h>
+#include <linux/iio/consumer.h>
+#include <linux/lcd.h>
+#include <linux/mfd/locomo.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+struct locomo_lcd {
+ struct regmap *regmap;
+ struct platform_device *dev;
+ struct locomo_lcd_platform_data *data;
+ int power;
+ struct iio_channel *comadj;
+ struct gpio_desc *vsha, *vshd, *vee, *mod;
+};
+
+static void locomo_lcd_on(struct locomo_lcd *lcd)
+{
+ gpiod_set_value(lcd->vsha, 1);
+ usleep_range(2000, 3000);
+
+ gpiod_set_value(lcd->vshd, 1);
+ usleep_range(2000, 3000);
+
+ iio_write_channel_raw(lcd->comadj, lcd->data->comadj);
+ usleep_range(5000, 6000);
+
+ gpiod_set_value(lcd->vee, 1);
+ usleep_range(10000, 11000);
+
+ /* TFTCRST | CPSOUT=0 | CPSEN */
+ regmap_write(lcd->regmap, LOCOMO_TC, 0x01);
+
+ /* Set CPSD */
+ regmap_write(lcd->regmap, LOCOMO_CPSD, 6);
+
+ /* TFTCRST | CPSOUT=0 | CPSEN */
+ regmap_write(lcd->regmap, LOCOMO_TC, 0x04 | 0x01);
+ usleep_range(10000, 11000);
+
+ gpiod_set_value(lcd->mod, 1);
+}
+
+static void locomo_lcd_off(struct locomo_lcd *lcd)
+{
+ /* TFTCRST=1 | CPSOUT=1 | CPSEN = 0 */
+ regmap_write(lcd->regmap, LOCOMO_TC, 0x06);
+ usleep_range(1000, 2000);
+
+ gpiod_set_value(lcd->vsha, 0);
+ msleep(110);
+
+ gpiod_set_value(lcd->vee, 0);
+ msleep(700);
+
+ iio_write_channel_raw(lcd->comadj, 0);
+ usleep_range(5000, 6000);
+
+ /* TFTCRST=0 | CPSOUT=0 | CPSEN = 0 */
+ regmap_write(lcd->regmap, LOCOMO_TC, 0);
+ gpiod_set_value(lcd->mod, 0);
+ gpiod_set_value(lcd->vshd, 0);
+}
+
+static void locomo_lcd_program_adsync(struct locomo_lcd *lcd)
+{
+ regmap_write(lcd->regmap, LOCOMO_ASD,
+ 6 + 8 + 320 + 30 - 10);
+ regmap_update_bits(lcd->regmap, LOCOMO_ASD,
+ 0x8000,
+ 0x8000);
+
+ regmap_write(lcd->regmap, LOCOMO_HSD,
+ 6 + 8 + 320 + 30 - 10 - 128 + 4);
+ regmap_update_bits(lcd->regmap, LOCOMO_HSD,
+ 0x8000,
+ 0x8000);
+
+ regmap_write(lcd->regmap, LOCOMO_HSC, 128 / 8);
+
+ /* XON */
+ regmap_write(lcd->regmap, LOCOMO_TADC, 0x80);
+ usleep_range(1000, 1100);
+
+ /* CLK9MEN */
+ regmap_update_bits(lcd->regmap, LOCOMO_TADC,
+ 0x10,
+ 0x10);
+ usleep_range(100, 200);
+}
+
+static void locomo_lcd_disable_adsync(struct locomo_lcd *lcd)
+{
+ /* ADSTART */
+ regmap_write(lcd->regmap, LOCOMO_ASD, 0x00);
+
+ /* 18MHz clock off*/
+ regmap_write(lcd->regmap, LOCOMO_TADC, 0x00);
+}
+
+int locomo_lcd_set_power(struct lcd_device *ldev, int power)
+{
+ struct locomo_lcd *lcd = lcd_get_data(ldev);
+
+ dev_dbg(&ldev->dev, "LCD power %d (is %d)\n", power, lcd->power);
+
+ if (!power && lcd->power)
+ locomo_lcd_on(lcd);
+
+ if (power && !lcd->power)
+ locomo_lcd_off(lcd);
+
+ lcd->power = power;
+
+ return 0;
+}
+
+static int locomo_lcd_get_power(struct lcd_device *ldev)
+{
+ struct locomo_lcd *lcd = lcd_get_data(ldev);
+
+ return lcd->power;
+}
+
+static struct lcd_ops locomo_lcd_ops = {
+ .set_power = locomo_lcd_set_power,
+ .get_power = locomo_lcd_get_power,
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int locomo_lcd_suspend(struct device *dev)
+{
+ struct lcd_device *ldev = dev_get_drvdata(dev);
+ struct locomo_lcd *lcd = lcd_get_data(ldev);
+
+ locomo_lcd_off(lcd);
+
+ locomo_lcd_disable_adsync(lcd);
+
+ return 0;
+}
+
+static int locomo_lcd_resume(struct device *dev)
+{
+ struct lcd_device *ldev = dev_get_drvdata(dev);
+ struct locomo_lcd *lcd = lcd_get_data(ldev);
+
+ locomo_lcd_program_adsync(lcd);
+
+ if (!lcd->power)
+ locomo_lcd_on(lcd);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(locomo_lcd_pm, locomo_lcd_suspend, locomo_lcd_resume);
+#define LOCOMOLCD_PM (&locomo_lcd_pm)
+#else
+#define LOCOMOLCD_PM NULL
+#endif
+
+static int locomo_lcd_probe(struct platform_device *dev)
+{
+ struct lcd_device *lcd_dev;
+ struct locomo_lcd *lcd;
+ int rc;
+
+ lcd = devm_kmalloc(&dev->dev, sizeof(struct locomo_lcd), GFP_KERNEL);
+ if (!lcd)
+ return -ENOMEM;
+
+ lcd->dev = dev;
+ lcd->power = FB_BLANK_NORMAL;
+
+ lcd->regmap = dev_get_regmap(dev->dev.parent, NULL);
+ if (!lcd->regmap)
+ return -ENODEV;
+
+ lcd->data = dev_get_platdata(&dev->dev);
+ if (!lcd->data)
+ return -EINVAL;
+
+ lcd->vsha = devm_gpiod_get(&dev->dev, "VSHA", GPIOD_OUT_LOW);
+ if (IS_ERR(lcd->vsha))
+ return PTR_ERR(lcd->vsha);
+
+ lcd->vshd = devm_gpiod_get(&dev->dev, "VSHD", GPIOD_OUT_LOW);
+ if (IS_ERR(lcd->vshd))
+ return PTR_ERR(lcd->vshd);
+
+ lcd->vee = devm_gpiod_get(&dev->dev, "Vee", GPIOD_OUT_LOW);
+ if (IS_ERR(lcd->vee))
+ return PTR_ERR(lcd->vee);
+
+ lcd->mod = devm_gpiod_get(&dev->dev, "MOD", GPIOD_OUT_LOW);
+ if (IS_ERR(lcd->mod))
+ return PTR_ERR(lcd->mod);
+
+ lcd->comadj = iio_channel_get(&dev->dev, "comadj");
+ if (IS_ERR(lcd->comadj)) {
+ rc = PTR_ERR(lcd->comadj);
+ if (rc == -ENODEV)
+ rc = -EPROBE_DEFER;
+
+ return rc;
+ }
+
+ locomo_lcd_program_adsync(lcd);
+
+ lcd_dev = devm_lcd_device_register(&dev->dev, "locomo", &dev->dev, lcd,
+ &locomo_lcd_ops);
+ if (IS_ERR(lcd_dev)) {
+ rc = PTR_ERR(lcd_dev);
+ goto err;
+ }
+
+ platform_set_drvdata(dev, lcd_dev);
+
+ lcd_set_power(lcd_dev, FB_BLANK_UNBLANK);
+
+ return 0;
+
+err:
+ locomo_lcd_disable_adsync(lcd);
+ iio_channel_release(lcd->comadj);
+
+ return rc;
+}
+
+static int locomo_lcd_remove(struct platform_device *dev)
+{
+ struct lcd_device *ldev = platform_get_drvdata(dev);
+ struct locomo_lcd *lcd = lcd_get_data(ldev);
+
+ locomo_lcd_off(lcd);
+
+ locomo_lcd_disable_adsync(lcd);
+
+ iio_channel_release(lcd->comadj);
+
+ return 0;
+}
+
+static void locomo_lcd_shutdown(struct platform_device *dev)
+{
+ struct lcd_device *ldev = platform_get_drvdata(dev);
+ struct locomo_lcd *lcd = lcd_get_data(ldev);
+
+ locomo_lcd_off(lcd);
+
+ locomo_lcd_disable_adsync(lcd);
+}
+
+static struct platform_driver locomo_lcd_driver = {
+ .driver = {
+ .name = "locomo-lcd",
+ .pm = LOCOMOLCD_PM,
+ },
+ .probe = locomo_lcd_probe,
+ .remove = locomo_lcd_remove,
+ .shutdown = locomo_lcd_shutdown,
+};
+
+module_platform_driver(locomo_lcd_driver);
+
+MODULE_AUTHOR("John Lenz <lenz-hcNo3dDEHLuVc3sceRu5cw@public.gmane.org>");
+MODULE_AUTHOR("Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>");
+MODULE_DESCRIPTION("LoCoMo LCD driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:locomo-lcd");
--
2.1.4
--
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^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 08/18] gpio: port LoCoMo gpio support from old driver
[not found] ` <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
` (2 preceding siblings ...)
2015-05-25 11:41 ` [PATCH v4 07/18] video: lcd: add LoCoMo LCD driver Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 09/18] gpio: locomo: implement per-pin irq handling Dmitry Eremin-Solenikov
` (4 subsequent siblings)
8 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-gpio-u79uwXL29TY76Z2rM5mHXA,
linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-spi-u79uwXL29TY76Z2rM5mHXA,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
Add gpiolib driver for gpio pins placed on the LoCoMo GA.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Reviewed-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
drivers/gpio/Kconfig | 12 ++++
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-locomo.c | 170 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 183 insertions(+)
create mode 100644 drivers/gpio/gpio-locomo.c
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index caefe80..4542684 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -734,6 +734,18 @@ config GPIO_KEMPLD
This driver can also be built as a module. If so, the module will be
called gpio-kempld.
+config GPIO_LOCOMO
+ bool "Sharp LoCoMo GPIO support"
+ depends on MFD_LOCOMO
+ help
+ Select this to support GPIO pins on Sharp LoCoMo Grid Array found
+ in Sharp Zaurus collie and poodle models.
+
+ Sat Yes if you have such PDA, say No otherwise.
+
+ This driver can also be built as a module. If so, the module will be
+ called gpio-locomo.
+
config GPIO_LP3943
tristate "TI/National Semiconductor LP3943 GPIO expander"
depends on MFD_LP3943
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index f71bb97..98655ae 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_GPIO_JANZ_TTL) += gpio-janz-ttl.o
obj-$(CONFIG_GPIO_KEMPLD) += gpio-kempld.o
obj-$(CONFIG_ARCH_KS8695) += gpio-ks8695.o
obj-$(CONFIG_GPIO_INTEL_MID) += gpio-intel-mid.o
+obj-$(CONFIG_GPIO_LOCOMO) += gpio-locomo.o
obj-$(CONFIG_GPIO_LOONGSON) += gpio-loongson.o
obj-$(CONFIG_GPIO_LP3943) += gpio-lp3943.o
obj-$(CONFIG_ARCH_LPC32XX) += gpio-lpc32xx.o
diff --git a/drivers/gpio/gpio-locomo.c b/drivers/gpio/gpio-locomo.c
new file mode 100644
index 0000000..dd9a1ca
--- /dev/null
+++ b/drivers/gpio/gpio-locomo.c
@@ -0,0 +1,170 @@
+/*
+ * Sharp LoCoMo support for GPIO
+ *
+ * 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 file contains all generic LoCoMo support.
+ *
+ * All initialization functions provided here are intended to be called
+ * from machine specific code with proper arguments when required.
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/regmap.h>
+#include <linux/mfd/locomo.h>
+
+struct locomo_gpio {
+ struct regmap *regmap;
+
+ struct gpio_chip gpio;
+
+ u16 rising_edge;
+ u16 falling_edge;
+
+ unsigned int save_gpo;
+ unsigned int save_gpe;
+};
+
+static int locomo_gpio_get(struct gpio_chip *chip,
+ unsigned offset)
+{
+ struct locomo_gpio *lg = container_of(chip, struct locomo_gpio, gpio);
+ unsigned int gpl;
+
+ regmap_read(lg->regmap, LOCOMO_GPL, &gpl);
+
+ return gpl & BIT(offset);
+}
+
+static void locomo_gpio_set(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ struct locomo_gpio *lg = container_of(chip, struct locomo_gpio, gpio);
+
+ regmap_update_bits(lg->regmap, LOCOMO_GPO,
+ BIT(offset),
+ value ? BIT(offset) : 0);
+}
+
+static int locomo_gpio_direction_input(struct gpio_chip *chip,
+ unsigned offset)
+{
+ struct locomo_gpio *lg = container_of(chip, struct locomo_gpio, gpio);
+
+ regmap_update_bits(lg->regmap, LOCOMO_GPD, BIT(offset), BIT(offset));
+ regmap_update_bits(lg->regmap, LOCOMO_GPE, BIT(offset), BIT(offset));
+
+ return 0;
+}
+
+static int locomo_gpio_direction_output(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ struct locomo_gpio *lg = container_of(chip, struct locomo_gpio, gpio);
+
+ regmap_update_bits(lg->regmap, LOCOMO_GPO,
+ BIT(offset),
+ value ? BIT(offset) : 0);
+ regmap_update_bits(lg->regmap, LOCOMO_GPD, BIT(offset), 0);
+ regmap_update_bits(lg->regmap, LOCOMO_GPE, BIT(offset), 0);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int locomo_gpio_suspend(struct device *dev)
+{
+ struct locomo_gpio *lg = dev_get_drvdata(dev);
+
+ regmap_read(lg->regmap, LOCOMO_GPO, &lg->save_gpo);
+ regmap_write(lg->regmap, LOCOMO_GPO, 0x00);
+ regmap_read(lg->regmap, LOCOMO_GPE, &lg->save_gpe);
+ regmap_write(lg->regmap, LOCOMO_GPE, 0x00);
+
+ return 0;
+}
+
+static int locomo_gpio_resume(struct device *dev)
+{
+ struct locomo_gpio *lg = dev_get_drvdata(dev);
+
+ regmap_write(lg->regmap, LOCOMO_GPO, lg->save_gpo);
+ regmap_write(lg->regmap, LOCOMO_GPE, lg->save_gpe);
+
+ return 0;
+}
+static SIMPLE_DEV_PM_OPS(locomo_gpio_pm,
+ locomo_gpio_suspend, locomo_gpio_resume);
+#define LOCOMO_GPIO_PM (&locomo_gpio_pm)
+#else
+#define LOCOMO_GPIO_PM NULL
+#endif
+
+static int locomo_gpio_probe(struct platform_device *pdev)
+{
+ struct locomo_gpio *lg;
+ int ret;
+ struct locomo_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev);
+
+ lg = devm_kzalloc(&pdev->dev, sizeof(struct locomo_gpio),
+ GFP_KERNEL);
+ if (!lg)
+ return -ENOMEM;
+
+ lg->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!lg->regmap)
+ return -EINVAL;
+
+ platform_set_drvdata(pdev, lg);
+
+ regmap_write(lg->regmap, LOCOMO_GPO, 0x00);
+ regmap_write(lg->regmap, LOCOMO_GPE, 0x00);
+ regmap_write(lg->regmap, LOCOMO_GPD, 0x00);
+ regmap_write(lg->regmap, LOCOMO_GIE, 0x00);
+
+ lg->gpio.base = pdata ? pdata->gpio_base : -1;
+ lg->gpio.label = "locomo-gpio";
+ lg->gpio.ngpio = 16;
+ lg->gpio.set = locomo_gpio_set;
+ lg->gpio.get = locomo_gpio_get;
+ lg->gpio.direction_input = locomo_gpio_direction_input;
+ lg->gpio.direction_output = locomo_gpio_direction_output;
+
+ ret = gpiochip_add(&lg->gpio);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int locomo_gpio_remove(struct platform_device *pdev)
+{
+ struct locomo_gpio *lg = platform_get_drvdata(pdev);
+
+ gpiochip_remove(&lg->gpio);
+
+ return 0;
+}
+
+static struct platform_driver locomo_gpio_driver = {
+ .probe = locomo_gpio_probe,
+ .remove = locomo_gpio_remove,
+ .driver = {
+ .name = "locomo-gpio",
+ .pm = LOCOMO_GPIO_PM,
+ },
+};
+module_platform_driver(locomo_gpio_driver);
+
+MODULE_DESCRIPTION("Sharp LoCoMo GPIO driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Lenz <lenz-hcNo3dDEHLuVc3sceRu5cw@public.gmane.org>");
+MODULE_ALIAS("platform:locomo-gpio");
--
2.1.4
--
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^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 09/18] gpio: locomo: implement per-pin irq handling
[not found] ` <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
` (3 preceding siblings ...)
2015-05-25 11:41 ` [PATCH v4 08/18] gpio: port LoCoMo gpio support from old driver Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 10/18] spi: add locomo SPI driver Dmitry Eremin-Solenikov
` (3 subsequent siblings)
8 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-gpio-u79uwXL29TY76Z2rM5mHXA,
linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-spi-u79uwXL29TY76Z2rM5mHXA,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
LoCoMo has a possibility to generate per-GPIO edge irqs. Support for
that was there in old locomo driver, got 'cleaned up' during old driver
IRQ cascading cleanup and is now reimplemented. It is expected that
SL-5500 (collie) will use locomo gpio irqs for mmc detection irq.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Reviewed-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
drivers/gpio/Kconfig | 1 +
drivers/gpio/gpio-locomo.c | 117 ++++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 117 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 4542684..6b77614 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -737,6 +737,7 @@ config GPIO_KEMPLD
config GPIO_LOCOMO
bool "Sharp LoCoMo GPIO support"
depends on MFD_LOCOMO
+ select GPIOLIB_IRQCHIP
help
Select this to support GPIO pins on Sharp LoCoMo Grid Array found
in Sharp Zaurus collie and poodle models.
diff --git a/drivers/gpio/gpio-locomo.c b/drivers/gpio/gpio-locomo.c
index dd9a1ca..75dbf6b 100644
--- a/drivers/gpio/gpio-locomo.c
+++ b/drivers/gpio/gpio-locomo.c
@@ -16,13 +16,15 @@
#include <linux/slab.h>
#include <linux/bitops.h>
#include <linux/err.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/io.h>
+#include <linux/irq.h>
#include <linux/regmap.h>
#include <linux/mfd/locomo.h>
struct locomo_gpio {
struct regmap *regmap;
+ int irq;
struct gpio_chip gpio;
@@ -79,6 +81,99 @@ static int locomo_gpio_direction_output(struct gpio_chip *chip,
return 0;
}
+static void
+locomo_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+ struct gpio_chip *chip = irq_get_handler_data(irq);
+ struct locomo_gpio *lg = container_of(chip, struct locomo_gpio, gpio);
+ struct irq_chip *irqchip = irq_desc_get_chip(desc);
+ unsigned int gir;
+ unsigned int gpd;
+ unsigned int req;
+
+ chained_irq_enter(irqchip, desc);
+
+ while (1) {
+ regmap_read(lg->regmap, LOCOMO_GIR, &gir);
+ regmap_read(lg->regmap, LOCOMO_GPD, &gpd);
+ req = gir & gpd;
+
+ if (!req)
+ break;
+
+ generic_handle_irq(irq_find_mapping(lg->gpio.irqdomain,
+ ffs(req) - 1));
+ }
+
+ chained_irq_exit(irqchip, desc);
+}
+
+static void locomo_gpio_ack_irq(struct irq_data *d)
+{
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(d);
+ struct locomo_gpio *lg = container_of(chip, struct locomo_gpio, gpio);
+ unsigned int mask = BIT(d->hwirq);
+
+ regmap_update_bits(lg->regmap, LOCOMO_GWE, mask, mask);
+ regmap_update_bits(lg->regmap, LOCOMO_GIS, mask, 0);
+ regmap_update_bits(lg->regmap, LOCOMO_GWE, mask, 0);
+}
+
+static void locomo_gpio_mask_irq(struct irq_data *d)
+{
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(d);
+ struct locomo_gpio *lg = container_of(chip, struct locomo_gpio, gpio);
+ unsigned int mask = BIT(d->hwirq);
+
+ regmap_update_bits(lg->regmap, LOCOMO_GIE, mask, 0);
+}
+
+static void locomo_gpio_unmask_irq(struct irq_data *d)
+{
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(d);
+ struct locomo_gpio *lg = container_of(chip, struct locomo_gpio, gpio);
+ unsigned int mask = BIT(d->hwirq);
+
+ regmap_update_bits(lg->regmap, LOCOMO_GIE, mask, mask);
+}
+
+static int locomo_gpio_type_irq(struct irq_data *d, unsigned int type)
+{
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(d);
+ struct locomo_gpio *lg = container_of(chip, struct locomo_gpio, gpio);
+ unsigned int mask;
+
+ mask = BIT(d->hwirq);
+
+ if (type == IRQ_TYPE_PROBE) {
+ if ((lg->rising_edge | lg->falling_edge) & mask)
+ return 0;
+ type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
+ }
+
+ if (type & IRQ_TYPE_EDGE_RISING)
+ lg->rising_edge |= mask;
+ else
+ lg->rising_edge &= ~mask;
+ if (type & IRQ_TYPE_EDGE_FALLING)
+ lg->falling_edge |= mask;
+ else
+ lg->falling_edge &= ~mask;
+
+ regmap_write(lg->regmap, LOCOMO_GRIE, lg->rising_edge);
+ regmap_write(lg->regmap, LOCOMO_GFIE, lg->falling_edge);
+
+ return 0;
+}
+
+static struct irq_chip locomo_gpio_irq_chip = {
+ .name = "locomo-GPIO",
+ .irq_ack = locomo_gpio_ack_irq,
+ .irq_mask = locomo_gpio_mask_irq,
+ .irq_unmask = locomo_gpio_unmask_irq,
+ .irq_set_type = locomo_gpio_type_irq,
+};
+
#ifdef CONFIG_PM_SLEEP
static int locomo_gpio_suspend(struct device *dev)
{
@@ -119,6 +214,10 @@ static int locomo_gpio_probe(struct platform_device *pdev)
if (!lg)
return -ENOMEM;
+ lg->irq = platform_get_irq(pdev, 0);
+ if (lg->irq < 0)
+ return -ENXIO;
+
lg->regmap = dev_get_regmap(pdev->dev.parent, NULL);
if (!lg->regmap)
return -EINVAL;
@@ -130,6 +229,7 @@ static int locomo_gpio_probe(struct platform_device *pdev)
regmap_write(lg->regmap, LOCOMO_GPD, 0x00);
regmap_write(lg->regmap, LOCOMO_GIE, 0x00);
+ lg->gpio.dev = &pdev->dev;
lg->gpio.base = pdata ? pdata->gpio_base : -1;
lg->gpio.label = "locomo-gpio";
lg->gpio.ngpio = 16;
@@ -142,7 +242,22 @@ static int locomo_gpio_probe(struct platform_device *pdev)
if (ret)
return ret;
+ ret = gpiochip_irqchip_add(&lg->gpio, &locomo_gpio_irq_chip, 0,
+ handle_level_irq, IRQ_TYPE_NONE);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to add irq chip\n");
+ goto err_rm_gpiochip;
+ }
+
+ gpiochip_set_chained_irqchip(&lg->gpio, &locomo_gpio_irq_chip, lg->irq,
+ locomo_gpio_irq_handler);
+
return 0;
+
+err_rm_gpiochip:
+ gpiochip_remove(&lg->gpio);
+
+ return ret;
}
static int locomo_gpio_remove(struct platform_device *pdev)
--
2.1.4
--
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^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 10/18] spi: add locomo SPI driver
[not found] ` <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
` (4 preceding siblings ...)
2015-05-25 11:41 ` [PATCH v4 09/18] gpio: locomo: implement per-pin irq handling Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 11/18] i2c: add locomo i2c driver Dmitry Eremin-Solenikov
` (2 subsequent siblings)
8 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-gpio-u79uwXL29TY76Z2rM5mHXA,
linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-spi-u79uwXL29TY76Z2rM5mHXA,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
LoCoMo chip has a built-in simple SPI controller. On Sharp SL-5500 PDDAs
it is connected to external MMC slot.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
drivers/spi/Kconfig | 10 ++
drivers/spi/Makefile | 1 +
drivers/spi/spi-locomo.c | 332 +++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 343 insertions(+)
create mode 100644 drivers/spi/spi-locomo.c
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 198f96b..c9e3176 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -258,6 +258,16 @@ config SPI_LM70_LLP
which interfaces to an LM70 temperature sensor using
a parallel port.
+config SPI_LOCOMO
+ tristate "Locomo SPI master"
+ depends on MFD_LOCOMO
+ help
+ This enables using the SPI controller as present in the LoCoMo
+ chips. It is probably only useful on the Sharp SL-5x00 PDA family.
+
+ On SL-5500 and SL-5000 devices this controller is used for
+ MMC/SD cards.
+
config SPI_MPC52xx
tristate "Freescale MPC52xx SPI (non-PSC) controller support"
depends on PPC_MPC52xx
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index d8cbf65..623c463 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -44,6 +44,7 @@ obj-$(CONFIG_SPI_GPIO) += spi-gpio.o
obj-$(CONFIG_SPI_IMG_SPFI) += spi-img-spfi.o
obj-$(CONFIG_SPI_IMX) += spi-imx.o
obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o
+obj-$(CONFIG_SPI_LOCOMO) += spi-locomo.o
obj-$(CONFIG_SPI_MESON_SPIFC) += spi-meson-spifc.o
obj-$(CONFIG_SPI_MPC512x_PSC) += spi-mpc512x-psc.o
obj-$(CONFIG_SPI_MPC52xx_PSC) += spi-mpc52xx-psc.o
diff --git a/drivers/spi/spi-locomo.c b/drivers/spi/spi-locomo.c
new file mode 100644
index 0000000..bef0354
--- /dev/null
+++ b/drivers/spi/spi-locomo.c
@@ -0,0 +1,332 @@
+/*
+ * 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; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+#include <linux/mfd/locomo.h>
+
+struct locomospi_dev {
+ struct regmap *regmap;
+
+ int clock_base;
+ int clock_div;
+ unsigned nsecs;
+
+ unsigned int save_ct;
+ unsigned int save_md;
+};
+
+static void locomospi_chipselect(struct spi_device *spi, bool enable)
+{
+ struct locomospi_dev *spidev;
+
+ dev_dbg(&spi->dev, "SPI cs: %s\n", enable ? "enable" : "disable");
+
+ spidev = spi_master_get_devdata(spi->master);
+
+ regmap_update_bits(spidev->regmap, LOCOMO_SPICT, LOCOMO_SPICT_CS,
+ enable ? LOCOMO_SPICT_CS : 0);
+}
+
+static u32 locomospi_txrx_word(struct spi_device *spi,
+ unsigned nsecs,
+ u32 word)
+{
+ struct locomospi_dev *spidev;
+ int wait;
+ int j;
+ unsigned int rx;
+ unsigned int r;
+
+ spidev = spi_master_get_devdata(spi->master);
+
+ if (spidev->clock_div == DIV_64)
+ wait = 0x10000;
+ else
+ wait = 8;
+
+ for (j = 0; j < wait; j++) {
+ regmap_read(spidev->regmap, LOCOMO_SPIST, &r);
+ if (r & LOCOMO_SPI_RFW)
+ break;
+ }
+ if (j == wait)
+ dev_err_ratelimited(&spi->dev, "rfw timeout\n");
+
+ regmap_write(spidev->regmap, LOCOMO_SPITD, word);
+ ndelay(nsecs);
+
+ for (j = 0; j < wait; j++) {
+ regmap_read(spidev->regmap, LOCOMO_SPIST, &r);
+ if (r & LOCOMO_SPI_RFR)
+ break;
+ }
+ if (j == wait)
+ dev_err_ratelimited(&spi->dev, "rfr timeout\n");
+
+ regmap_read(spidev->regmap, LOCOMO_SPIRD, &rx);
+ ndelay(nsecs);
+
+ dev_dbg(&spi->dev, "SPI txrx: %02x/%02x\n", word, rx);
+
+ return rx;
+}
+
+static void locomo_spi_set_speed(struct locomospi_dev *spidev, u32 hz)
+{
+ spidev->nsecs = (1000000000/2) / hz;
+
+ if (hz >= 24576000) {
+ spidev->clock_base = CLOCK_25MHZ;
+ spidev->clock_div = DIV_1;
+ } else if (hz >= 22579200) {
+ spidev->clock_base = CLOCK_22MHZ;
+ spidev->clock_div = DIV_1;
+ } else if (hz >= 18432000) {
+ spidev->clock_base = CLOCK_18MHZ;
+ spidev->clock_div = DIV_1;
+ } else if (hz >= 12288000) {
+ spidev->clock_base = CLOCK_25MHZ;
+ spidev->clock_div = DIV_2;
+ } else if (hz >= 11289600) {
+ spidev->clock_base = CLOCK_22MHZ;
+ spidev->clock_div = DIV_2;
+ } else if (hz >= 9216000) {
+ spidev->clock_base = CLOCK_18MHZ;
+ spidev->clock_div = DIV_2;
+ } else if (hz >= 6144000) {
+ spidev->clock_base = CLOCK_25MHZ;
+ spidev->clock_div = DIV_4;
+ } else if (hz >= 5644800) {
+ spidev->clock_base = CLOCK_22MHZ;
+ spidev->clock_div = DIV_4;
+ } else if (hz >= 4608000) {
+ spidev->clock_base = CLOCK_18MHZ;
+ spidev->clock_div = DIV_4;
+ } else if (hz >= 3072000) {
+ spidev->clock_base = CLOCK_25MHZ;
+ spidev->clock_div = DIV_8;
+ } else if (hz >= 2822400) {
+ spidev->clock_base = CLOCK_22MHZ;
+ spidev->clock_div = DIV_8;
+ } else if (hz >= 2304000) {
+ spidev->clock_base = CLOCK_18MHZ;
+ spidev->clock_div = DIV_8;
+ } else if (hz >= 384000) {
+ spidev->clock_base = CLOCK_25MHZ;
+ spidev->clock_div = DIV_64;
+ } else if (hz >= 352800) {
+ spidev->clock_base = CLOCK_22MHZ;
+ spidev->clock_div = DIV_64;
+ } else { /* set to 288 Khz */
+ spidev->clock_base = CLOCK_18MHZ;
+ spidev->clock_div = DIV_64;
+ }
+
+ regmap_update_bits(spidev->regmap, LOCOMO_SPIMD,
+ LOCOMO_SPIMD_XSEL | LOCOMO_SPIMD_CLKSEL |
+ LOCOMO_SPIMD_XEN,
+ 0);
+ regmap_update_bits(spidev->regmap, LOCOMO_SPIMD,
+ LOCOMO_SPIMD_XSEL | LOCOMO_SPIMD_CLKSEL |
+ LOCOMO_SPIMD_XEN,
+ spidev->clock_div | (spidev->clock_base << 3) |
+ LOCOMO_SPIMD_XEN);
+
+ usleep_range(300, 400);
+}
+
+static int locomo_spi_setup_transfer(struct spi_device *spi,
+ struct spi_transfer *t)
+{
+ struct locomospi_dev *spidev;
+
+ spidev = spi_master_get_devdata(spi->master);
+
+ regmap_update_bits(spidev->regmap, LOCOMO_SPIMD,
+ LOCOMO_SPIMD_XON,
+ LOCOMO_SPIMD_XON);
+
+ locomo_spi_set_speed(spidev, t->speed_hz);
+
+ return 0;
+}
+
+static int locomospi_transfer_one(struct spi_master *master,
+ struct spi_device *spi,
+ struct spi_transfer *t)
+{
+ struct locomospi_dev *spidev = spi_master_get_devdata(spi->master);
+ int rc;
+ unsigned count;
+ const u8 *tx = t->tx_buf;
+ u8 *rx = t->rx_buf;
+
+ rc = locomo_spi_setup_transfer(spi, t);
+ if (rc < 0)
+ return rc;
+
+ if (!t->len)
+ return 0;
+
+ for (count = t->len; likely(count > 0); count--) {
+ u8 word = 0;
+
+ if (tx)
+ word = *tx++;
+ word = locomospi_txrx_word(spi, spidev->nsecs, word);
+
+ if (rx)
+ *rx++ = word;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int locomo_spi_suspend(struct device *dev)
+{
+ struct spi_master *master = dev_get_drvdata(dev);
+ struct locomospi_dev *spidev = spi_master_get_devdata(master);
+ int ret;
+
+ /* Stop the queue running */
+ ret = spi_master_suspend(master);
+ if (ret) {
+ dev_warn(dev, "cannot suspend master\n");
+ return ret;
+ }
+
+ regmap_read(spidev->regmap, LOCOMO_SPICT, &spidev->save_ct);
+ regmap_write(spidev->regmap, LOCOMO_SPICT, LOCOMO_SPICT_CS);
+ regmap_read(spidev->regmap, LOCOMO_SPIMD, &spidev->save_md);
+ regmap_write(spidev->regmap, LOCOMO_SPIMD,
+ LOCOMO_SPIMD_MSB1ST | LOCOMO_SPIMD_DOSTAT |
+ LOCOMO_SPIMD_RCPOL | LOCOMO_SPIMD_TCPOL |
+ (CLOCK_25MHZ << 3) | DIV_64);
+
+ return 0;
+}
+
+static int locomo_spi_resume(struct device *dev)
+{
+ struct spi_master *master = dev_get_drvdata(dev);
+ struct locomospi_dev *spidev = spi_master_get_devdata(master);
+ int ret;
+
+ regmap_write(spidev->regmap, LOCOMO_SPIMD, spidev->save_md);
+ regmap_write(spidev->regmap, LOCOMO_SPICT, spidev->save_ct);
+
+ /* Start the queue running */
+ ret = spi_master_resume(master);
+ if (ret)
+ dev_err(dev, "problem starting queue (%d)\n", ret);
+
+ return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(locomo_spi_pm_ops,
+ locomo_spi_suspend, locomo_spi_resume);
+
+#define LOCOMO_SPI_PM_OPS (&locomo_spi_pm_ops)
+#else
+#define LOCOMO_SPI_PM_OPS NULL
+#endif
+
+static int locomo_spi_probe(struct platform_device *pdev)
+{
+ struct spi_master *master;
+ struct locomospi_dev *spidev;
+ int ret = -ENODEV;
+
+ master = spi_alloc_master(&pdev->dev, sizeof(struct locomospi_dev));
+ if (!master)
+ return -ENOMEM;
+
+ master->bus_num = 0;
+ master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
+ master->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 8);
+ master->max_speed_hz = 24576000;
+ master->num_chipselect = 1;
+ master->set_cs = locomospi_chipselect;
+ master->transfer_one = locomospi_transfer_one;
+
+ spidev = spi_master_get_devdata(master);
+
+ spidev->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!spidev->regmap)
+ goto out_put;
+
+ spidev->clock_div = DIV_1;
+ spidev->clock_base = CLOCK_25MHZ;
+
+ platform_set_drvdata(pdev, master);
+
+ regmap_write(spidev->regmap, LOCOMO_SPIMD,
+ LOCOMO_SPIMD_MSB1ST | LOCOMO_SPIMD_DOSTAT |
+ LOCOMO_SPIMD_RCPOL | LOCOMO_SPIMD_TCPOL |
+ LOCOMO_SPIMD_XON);
+
+ regmap_write(spidev->regmap, LOCOMO_SPIMD,
+ LOCOMO_SPIMD_MSB1ST | LOCOMO_SPIMD_DOSTAT |
+ LOCOMO_SPIMD_RCPOL | LOCOMO_SPIMD_TCPOL |
+ LOCOMO_SPIMD_XON | LOCOMO_SPIMD_XEN |
+ (spidev->clock_base << 3) | spidev->clock_div);
+
+ regmap_write(spidev->regmap, LOCOMO_SPICT, LOCOMO_SPICT_CS |
+ LOCOMO_SPICT_CEN | LOCOMO_SPICT_RXUEN |
+ LOCOMO_SPICT_ALIGNEN);
+
+ ret = devm_spi_register_master(&pdev->dev, master);
+ if (ret) {
+ dev_err(&pdev->dev, "bitbang start failed with %d\n", ret);
+ goto out_put;
+ }
+
+ return 0;
+
+out_put:
+ spi_master_put(master);
+ return ret;
+}
+
+static int locomo_spi_remove(struct platform_device *pdev)
+{
+ struct spi_master *master = platform_get_drvdata(pdev);
+ struct locomospi_dev *spidev = spi_master_get_devdata(master);
+
+ regmap_update_bits(spidev->regmap, LOCOMO_SPICT, LOCOMO_SPICT_CEN, 0);
+ regmap_update_bits(spidev->regmap, LOCOMO_SPIMD, LOCOMO_SPIMD_XEN, 0);
+ regmap_update_bits(spidev->regmap, LOCOMO_SPIMD, LOCOMO_SPIMD_XON, 0);
+ regmap_update_bits(spidev->regmap, LOCOMO_SPICT,
+ LOCOMO_SPICT_CS,
+ LOCOMO_SPICT_CS);
+
+ return 0;
+}
+
+static struct platform_driver locomo_spi_driver = {
+ .probe = locomo_spi_probe,
+ .remove = locomo_spi_remove,
+ .driver = {
+ .name = "locomo-spi",
+ .pm = LOCOMO_SPI_PM_OPS,
+ },
+};
+module_platform_driver(locomo_spi_driver);
+
+MODULE_AUTHOR("Thomas Kunze thommy-Pp6lxjB34Lw@public.gmane.org");
+MODULE_DESCRIPTION("LoCoMo SPI driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:locomo-spi");
--
2.1.4
--
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^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 11/18] i2c: add locomo i2c driver
[not found] ` <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
` (5 preceding siblings ...)
2015-05-25 11:41 ` [PATCH v4 10/18] spi: add locomo SPI driver Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 13/18] ARM: sa1100: don't preallocate IRQ space for locomo Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 16/18] ARM: pxa: poodle: " Dmitry Eremin-Solenikov
8 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-gpio-u79uwXL29TY76Z2rM5mHXA,
linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-spi-u79uwXL29TY76Z2rM5mHXA,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
LoCoMo chip contains a tiny i2c controller destined to control
M62332 DAC. Provide a separate I2C driver for this cell.
Reviewed-by: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
drivers/i2c/busses/Kconfig | 12 ++++
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-locomo.c | 135 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 148 insertions(+)
create mode 100644 drivers/i2c/busses/i2c-locomo.c
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 2255af2..114d9da 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -602,6 +602,18 @@ config I2C_KEMPLD
This driver can also be built as a module. If so, the module
will be called i2c-kempld.
+config I2C_LOCOMO
+ tristate "I2C bus support for LoCoMo chips"
+ depends on MFD_LOCOMO
+ select I2C_ALGOBIT
+ help
+ Say yes if you will run the kernel on Sharp SL-5x00 family of devices.
+
+ If you don't know what to do here, say N.
+
+ This driver can also be built as a module. If so, the module
+ will be called i2c-locomo.
+
config I2C_MESON
tristate "Amlogic Meson I2C controller"
depends on ARCH_MESON
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index cdf941d..e09dcf6 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -58,6 +58,7 @@ obj-$(CONFIG_I2C_IMX) += i2c-imx.o
obj-$(CONFIG_I2C_IOP3XX) += i2c-iop3xx.o
obj-$(CONFIG_I2C_JZ4780) += i2c-jz4780.o
obj-$(CONFIG_I2C_KEMPLD) += i2c-kempld.o
+obj-$(CONFIG_I2C_LOCOMO) += i2c-locomo.o
obj-$(CONFIG_I2C_MESON) += i2c-meson.o
obj-$(CONFIG_I2C_MPC) += i2c-mpc.o
obj-$(CONFIG_I2C_MV64XXX) += i2c-mv64xxx.o
diff --git a/drivers/i2c/busses/i2c-locomo.c b/drivers/i2c/busses/i2c-locomo.c
new file mode 100644
index 0000000..d520513
--- /dev/null
+++ b/drivers/i2c/busses/i2c-locomo.c
@@ -0,0 +1,135 @@
+/*
+ * 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.
+ */
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/kernel.h>
+#include <linux/mfd/locomo.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+struct locomo_i2c {
+ struct regmap *regmap;
+ struct i2c_adapter adap;
+ struct i2c_algo_bit_data bit;
+};
+
+static void locomo_i2c_setsda(void *data, int state)
+{
+ struct locomo_i2c *li2c = data;
+
+ regmap_update_bits(li2c->regmap, LOCOMO_DAC,
+ LOCOMO_DAC_SDAOEB,
+ state ? LOCOMO_DAC_SDAOEB : 0);
+}
+
+static void locomo_i2c_setscl(void *data, int state)
+{
+ struct locomo_i2c *li2c = data;
+
+ regmap_update_bits(li2c->regmap, LOCOMO_DAC,
+ LOCOMO_DAC_SCLOEB,
+ state ? LOCOMO_DAC_SCLOEB : 0);
+}
+
+static int locomo_i2c_getsda(void *data)
+{
+ struct locomo_i2c *li2c = data;
+ unsigned int r;
+
+ regmap_read(li2c->regmap, LOCOMO_DAC, &r);
+
+ return !!(r & LOCOMO_DAC_SDA);
+}
+
+static int locomo_i2c_probe(struct platform_device *dev)
+{
+ struct locomo_i2c *li2c;
+ int ret;
+
+ li2c = devm_kzalloc(&dev->dev, sizeof(struct locomo_i2c), GFP_KERNEL);
+ if (li2c == NULL)
+ return -ENOMEM;
+
+ li2c->regmap = dev_get_regmap(dev->dev.parent, NULL);
+ if (!li2c->regmap)
+ return -ENODEV;
+
+ li2c->adap.owner = THIS_MODULE;
+ li2c->adap.dev.parent = &dev->dev;
+ li2c->adap.dev.of_node = dev->dev.of_node;
+ li2c->adap.algo_data = &li2c->bit;
+ li2c->adap.nr = 1; /* On poodle, 0 is pxa internal bus */
+
+ strlcpy(li2c->adap.name, "LoCoMo I2C", sizeof(li2c->adap.name));
+
+ li2c->bit.data = li2c;
+ li2c->bit.setsda = locomo_i2c_setsda;
+ li2c->bit.setscl = locomo_i2c_setscl;
+ li2c->bit.getsda = locomo_i2c_getsda;
+ li2c->bit.udelay = 6;
+ li2c->bit.timeout = HZ;
+
+ ret = i2c_bit_add_numbered_bus(&li2c->adap);
+ if (ret)
+ return ret;
+
+ platform_set_drvdata(dev, li2c);
+
+ return 0;
+}
+
+static int locomo_i2c_remove(struct platform_device *dev)
+{
+ struct locomo_i2c *li2c = platform_get_drvdata(dev);
+
+ i2c_del_adapter(&li2c->adap);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int locomo_i2c_suspend(struct device *dev)
+{
+ struct locomo_i2c *li2c = dev_get_drvdata(dev);
+
+ regmap_write(li2c->regmap, LOCOMO_DAC, 0x00);
+
+ return 0;
+}
+
+static int locomo_i2c_resume(struct device *dev)
+{
+ struct locomo_i2c *li2c = dev_get_drvdata(dev);
+
+ regmap_write(li2c->regmap, LOCOMO_DAC,
+ LOCOMO_DAC_SDAOEB | LOCOMO_DAC_SCLOEB);
+
+ return 0;
+}
+static SIMPLE_DEV_PM_OPS(locomo_i2c_pm, locomo_i2c_suspend, locomo_i2c_resume);
+#define LOCOMO_I2C_PM (&locomo_i2c_pm)
+#else
+#define LOCOMO_I2C_PM NULL
+#endif
+
+
+static struct platform_driver locomo_i2c_driver = {
+ .driver = {
+ .name = "locomo-i2c",
+ .pm = LOCOMO_I2C_PM,
+ },
+ .probe = locomo_i2c_probe,
+ .remove = locomo_i2c_remove,
+};
+
+module_platform_driver(locomo_i2c_driver);
+
+MODULE_DESCRIPTION("LoCoMo i2c bus driver");
+MODULE_AUTHOR("Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:locomo-i2c");
--
2.1.4
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^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 13/18] ARM: sa1100: don't preallocate IRQ space for locomo
[not found] ` <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
` (6 preceding siblings ...)
2015-05-25 11:41 ` [PATCH v4 11/18] i2c: add locomo i2c driver Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 16/18] ARM: pxa: poodle: " Dmitry Eremin-Solenikov
8 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-gpio-u79uwXL29TY76Z2rM5mHXA,
linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-spi-u79uwXL29TY76Z2rM5mHXA,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
As new locomo driver properly supports SPARSE_IRQ, stop playing with
NR_IRQS on sa1100 (locomo was the last chip requiring NR_IRQ tricks).
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
arch/arm/mach-sa1100/include/mach/irqs.h | 19 ++-----------------
1 file changed, 2 insertions(+), 17 deletions(-)
diff --git a/arch/arm/mach-sa1100/include/mach/irqs.h b/arch/arm/mach-sa1100/include/mach/irqs.h
index 734e30e..b4b9608 100644
--- a/arch/arm/mach-sa1100/include/mach/irqs.h
+++ b/arch/arm/mach-sa1100/include/mach/irqs.h
@@ -79,22 +79,7 @@
#define IRQ_BOARD_START 61
#define IRQ_BOARD_END 77
-/*
- * Figure out the MAX IRQ number.
- *
- * Neponset, SA1111 and UCB1x00 are sparse IRQ aware, so can dynamically
- * allocate their IRQs above NR_IRQS.
- *
- * LoCoMo has 4 additional IRQs, but is not sparse IRQ aware, and so has
- * to be included in the NR_IRQS calculation.
- */
-#ifdef CONFIG_SHARP_LOCOMO
-#define NR_IRQS_LOCOMO 4
-#else
-#define NR_IRQS_LOCOMO 0
-#endif
-
#ifndef NR_IRQS
-#define NR_IRQS (IRQ_BOARD_START + NR_IRQS_LOCOMO)
+#define NR_IRQS IRQ_BOARD_START
#endif
-#define SA1100_NR_IRQS (IRQ_BOARD_START + NR_IRQS_LOCOMO)
+#define SA1100_NR_IRQS IRQ_BOARD_START
--
2.1.4
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^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 16/18] ARM: pxa: poodle: don't preallocate IRQ space for locomo
[not found] ` <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
` (7 preceding siblings ...)
2015-05-25 11:41 ` [PATCH v4 13/18] ARM: sa1100: don't preallocate IRQ space for locomo Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
8 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-gpio-u79uwXL29TY76Z2rM5mHXA,
linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-spi-u79uwXL29TY76Z2rM5mHXA,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw
As new locomo driver supports SPARSE_IRQ, don't preallocate NR_IRQS
space for it on poodle.
Acked-by: Robert Jarzmik <robert.jarzmik-GANU6spQydw@public.gmane.org>
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
arch/arm/mach-pxa/include/mach/poodle.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-pxa/include/mach/poodle.h b/arch/arm/mach-pxa/include/mach/poodle.h
index 5905cf1..71b6383 100644
--- a/arch/arm/mach-pxa/include/mach/poodle.h
+++ b/arch/arm/mach-pxa/include/mach/poodle.h
@@ -81,7 +81,7 @@
#define POODLE_GPIO_L_LCLK (POODLE_SCOOP_GPIO_BASE + 10)
#define POODLE_GPIO_HS_OUT (POODLE_SCOOP_GPIO_BASE + 11)
-#define POODLE_NR_IRQS (IRQ_BOARD_START + 4) /* 4 for LoCoMo */
+#define POODLE_NR_IRQS IRQ_BOARD_START
extern struct platform_device poodle_locomo_device;
--
2.1.4
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^ permalink raw reply related [flat|nested] 27+ messages in thread
* [PATCH v4 12/18] ARM: sa1100: make collie use new locomo drivers
2015-05-25 11:41 [PATCH v4 00/18] new MFD LoCoMo driver set Dmitry Eremin-Solenikov
` (4 preceding siblings ...)
[not found] ` <1432554113-26280-1-git-send-email-dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 14/18] ASoC: pxa: poodle: make use of new locomo GPIO interface Dmitry Eremin-Solenikov
` (3 subsequent siblings)
9 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel, linux-gpio, linux-input, linux-spi, alsa-devel
Switch collie to new mfd-based locomo driver. Update platform data and
add necessary spi, i2c and regulator devices.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
arch/arm/mach-sa1100/Kconfig | 1 -
arch/arm/mach-sa1100/collie.c | 213 ++++++++++++++++++++++-------
arch/arm/mach-sa1100/include/mach/collie.h | 16 ++-
3 files changed, 178 insertions(+), 52 deletions(-)
diff --git a/arch/arm/mach-sa1100/Kconfig b/arch/arm/mach-sa1100/Kconfig
index c6f6ed1..37af126 100644
--- a/arch/arm/mach-sa1100/Kconfig
+++ b/arch/arm/mach-sa1100/Kconfig
@@ -48,7 +48,6 @@ endchoice
config SA1100_COLLIE
bool "Sharp Zaurus SL5500"
# FIXME: select ARM_SA11x0_CPUFREQ
- select SHARP_LOCOMO
select SHARP_PARAM
select SHARP_SCOOP
help
diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c
index 3cc2b71..b6dda7a 100644
--- a/arch/arm/mach-sa1100/collie.c
+++ b/arch/arm/mach-sa1100/collie.c
@@ -24,13 +24,21 @@
#include <linux/platform_data/sa11x0-serial.h>
#include <linux/platform_device.h>
#include <linux/mfd/ucb1x00.h>
+#include <linux/mfd/locomo.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/timer.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
+#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/power/gpio-charger.h>
+#include <linux/gpio/machine.h>
+#include <linux/iio/machine.h>
+#include <linux/mmc/host.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
+#include <linux/spi/mmc_spi.h>
#include <video/sa1100fb.h>
@@ -47,7 +55,6 @@
#include <asm/hardware/scoop.h>
#include <asm/mach/sharpsl_param.h>
-#include <asm/hardware/locomo.h>
#include <linux/platform_data/mfd-mcp-sa11x0.h>
#include <mach/irqs.h>
@@ -151,36 +158,54 @@ static struct platform_device collie_power_device = {
.dev.platform_data = &collie_power_data,
};
-#ifdef CONFIG_SHARP_LOCOMO
/*
* low-level UART features.
*/
-struct platform_device collie_locomo_device;
+static struct gpio collie_uart_gpio[] = {
+ { COLLIE_GPIO_CTS, GPIOF_IN, "CTS" },
+ { COLLIE_GPIO_RTS, GPIOF_OUT_INIT_LOW, "RTS" },
+ { COLLIE_GPIO_DTR, GPIOF_OUT_INIT_LOW, "DTR" },
+ { COLLIE_GPIO_DSR, GPIOF_IN, "DSR" },
+};
+
+static bool collie_uart_gpio_ok;
static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
{
- if (mctrl & TIOCM_RTS)
- locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
- else
- locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
-
- if (mctrl & TIOCM_DTR)
- locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
- else
- locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
+ if (!collie_uart_gpio_ok) {
+ int rc = gpio_request_array(collie_uart_gpio,
+ ARRAY_SIZE(collie_uart_gpio));
+ if (rc)
+ pr_err("collie_uart_set_mctrl: gpio request %d\n", rc);
+ else
+ collie_uart_gpio_ok = true;
+ }
+
+ if (collie_uart_gpio_ok) {
+ gpio_set_value(COLLIE_GPIO_RTS, !(mctrl & TIOCM_RTS));
+ gpio_set_value(COLLIE_GPIO_DTR, !(mctrl & TIOCM_DTR));
+ }
}
static u_int collie_uart_get_mctrl(struct uart_port *port)
{
int ret = TIOCM_CD;
- unsigned int r;
- r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
- if (r == -ENODEV)
+ if (!collie_uart_gpio_ok) {
+ int rc = gpio_request_array(collie_uart_gpio,
+ ARRAY_SIZE(collie_uart_gpio));
+ if (rc)
+ pr_err("collie_uart_get_mctrl: gpio request %d\n", rc);
+ else
+ collie_uart_gpio_ok = true;
+ }
+
+ if (!collie_uart_gpio_ok)
return ret;
- if (r & LOCOMO_GPIO_CTS)
+
+ if (gpio_get_value(COLLIE_GPIO_CTS))
ret |= TIOCM_CTS;
- if (r & LOCOMO_GPIO_DSR)
+ if (gpio_get_value(COLLIE_GPIO_DSR))
ret |= TIOCM_DSR;
return ret;
@@ -191,33 +216,35 @@ static struct sa1100_port_fns collie_port_fns __initdata = {
.get_mctrl = collie_uart_get_mctrl,
};
-static int collie_uart_probe(struct locomo_dev *dev)
-{
- return 0;
-}
-
-static int collie_uart_remove(struct locomo_dev *dev)
-{
- return 0;
-}
+static struct regulator_consumer_supply collie_amp_on_consumer_supplies[] = {
+ REGULATOR_SUPPLY("VCC", "1-004e"),
+};
-static struct locomo_driver collie_uart_driver = {
- .drv = {
- .name = "collie_uart",
+static struct regulator_init_data collie_amp_on_init_data = {
+ .constraints = {
+ .name = "AMP_ON",
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
- .devid = LOCOMO_DEVID_UART,
- .probe = collie_uart_probe,
- .remove = collie_uart_remove,
+ .consumer_supplies = collie_amp_on_consumer_supplies,
+ .num_consumer_supplies = ARRAY_SIZE(collie_amp_on_consumer_supplies),
};
-static int __init collie_uart_init(void)
-{
- return locomo_driver_register(&collie_uart_driver);
-}
-device_initcall(collie_uart_init);
-
-#endif
+static struct fixed_voltage_config collie_amp_on_data = {
+ .supply_name = "amp_on",
+ .microvolts = 3300000,
+ .gpio = COLLIE_GPIO_AMP2_ON,
+ .startup_delay = 5,
+ .enable_high = 1,
+ .init_data = &collie_amp_on_init_data,
+};
+static struct platform_device collie_amp_on_device = {
+ .name = "reg-fixed-voltage",
+ .id = -1,
+ .dev = {
+ .platform_data = &collie_amp_on_data,
+ },
+};
static struct resource locomo_resources[] = {
[0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
@@ -225,14 +252,15 @@ static struct resource locomo_resources[] = {
};
static struct locomo_platform_data locomo_info = {
- .irq_base = IRQ_BOARD_START,
+ .gpio_base = COLLIE_LOCOMO_GPIO_BASE,
+ .comadj = 128,
};
-struct platform_device collie_locomo_device = {
+static struct platform_device collie_locomo_device = {
.name = "locomo",
.id = 0,
.dev = {
- .platform_data = &locomo_info,
+ .platform_data = &locomo_info,
},
.num_resources = ARRAY_SIZE(locomo_resources),
.resource = locomo_resources,
@@ -270,7 +298,55 @@ static struct platform_device collie_gpio_keys_device = {
},
};
+static int collie_mmc_init(struct device *dev,
+ irqreturn_t (*isr)(int, void*), void *mmc)
+{
+ int ret;
+
+ ret = gpio_request(COLLIE_GPIO_CARD_POWER, "MMC power");
+ if (!ret)
+ ret = gpio_direction_output(COLLIE_GPIO_CARD_POWER, 0);
+ if (ret)
+ gpio_free(COLLIE_GPIO_CARD_POWER);
+ return ret;
+}
+
+static void collie_mmc_exit(struct device *dev, void *mmc)
+{
+ gpio_free(COLLIE_GPIO_CARD_POWER);
+}
+
+static void collie_mmc_setpower(struct device *dev, unsigned int mask)
+{
+ gpio_set_value(COLLIE_GPIO_CARD_POWER, !!mask);
+}
+
+static struct mmc_spi_platform_data collie_mmc_data = {
+ .init = collie_mmc_init,
+ .exit = collie_mmc_exit,
+ .setpower = collie_mmc_setpower,
+ .detect_delay = 200,
+ .powerup_msecs = 200,
+ .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
+ .flags = MMC_SPI_USE_CD_GPIO | MMC_SPI_USE_RO_GPIO,
+ .cd_gpio = COLLIE_GPIO_CARD_DETECT,
+ .ro_gpio = COLLIE_GPIO_CARD_RO,
+ .caps2 = MMC_CAP2_RO_ACTIVE_HIGH,
+};
+
+static struct spi_board_info collie_spi_board_info[] __initdata = {
+ {
+ .modalias = "mmc_spi",
+ .platform_data = &collie_mmc_data,
+ .max_speed_hz = 25000000,
+ .bus_num = 0,
+ .chip_select = 0,
+ .mode = SPI_MODE_0,
+ },
+};
+
static struct platform_device *devices[] __initdata = {
+ &collie_amp_on_device,
&collie_locomo_device,
&colliescoop_device,
&collie_power_device,
@@ -347,10 +423,39 @@ static struct sa1100fb_mach_info collie_lcd_info = {
.lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
.lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
+};
-#ifdef CONFIG_BACKLIGHT_LOCOMO
- .lcd_power = locomolcd_power
-#endif
+static struct iio_map locomo_iio_map[] = {
+ {
+ .consumer_dev_name = "locomo-lcd.0",
+ .consumer_channel = "comadj",
+ .adc_channel_label = "CH0",
+ },
+ { }
+};
+
+static struct i2c_board_info locomo_i2c_devs[] __initdata = {
+ {
+ I2C_BOARD_INFO("m62332", 0x4e),
+ .platform_data = locomo_iio_map,
+ },
+};
+
+static struct gpiod_lookup_table collie_bl_gpios_table = {
+ .dev_id = "locomo-backlight.0",
+ .table = {
+ GPIO_LOOKUP("locomo-gpio", 9, "flvr", GPIO_ACTIVE_HIGH),
+ { },
+ },
+}, collie_lcd_gpios_table = {
+ .dev_id = "locomo-lcd.0",
+ .table = {
+ GPIO_LOOKUP("locomo-gpio", 4, "VSHA", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("locomo-gpio", 5, "VSHD", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("locomo-gpio", 6, "Vee", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("locomo-gpio", 7, "MOD", GPIO_ACTIVE_HIGH),
+ { },
+ },
};
static void __init collie_init(void)
@@ -381,11 +486,19 @@ static void __init collie_init(void)
GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
+ sharpsl_save_param();
+
sa11x0_ppc_configure_mcp();
platform_scoop_config = &collie_pcmcia_config;
+ if (sharpsl_param.comadj != -1)
+ locomo_info.comadj = sharpsl_param.comadj;
+
+ gpiod_add_lookup_table(&collie_bl_gpios_table);
+ gpiod_add_lookup_table(&collie_lcd_gpios_table);
+
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
if (ret) {
printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
@@ -397,7 +510,13 @@ static void __init collie_init(void)
sa11x0_register_mcp(&collie_mcp_data);
sa11x0_register_irda(&collie_ir_data);
- sharpsl_save_param();
+ i2c_register_board_info(1,
+ locomo_i2c_devs, ARRAY_SIZE(locomo_i2c_devs));
+
+ spi_register_board_info(collie_spi_board_info,
+ ARRAY_SIZE(collie_spi_board_info));
+
+ regulator_has_full_constraints();
}
static struct map_desc collie_io_desc[] __initdata = {
@@ -419,9 +538,7 @@ static void __init collie_map_io(void)
sa1100_map_io();
iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
-#ifdef CONFIG_SHARP_LOCOMO
sa1100_register_uart_fns(&collie_port_fns);
-#endif
sa1100_register_uart(0, 3);
sa1100_register_uart(1, 1);
}
diff --git a/arch/arm/mach-sa1100/include/mach/collie.h b/arch/arm/mach-sa1100/include/mach/collie.h
index b478ca1..2e3bf80 100644
--- a/arch/arm/mach-sa1100/include/mach/collie.h
+++ b/arch/arm/mach-sa1100/include/mach/collie.h
@@ -24,12 +24,12 @@ extern void locomolcd_power(int on);
#define COLLIE_SCP_MUTE_L SCOOP_GPCR_PA14
#define COLLIE_SCP_MUTE_R SCOOP_GPCR_PA15
#define COLLIE_SCP_5VON SCOOP_GPCR_PA16
-#define COLLIE_SCP_AMP_ON SCOOP_GPCR_PA17
+#define COLLIE_GPIO_AMP2_ON (COLLIE_SCOOP_GPIO_BASE + 6)
#define COLLIE_GPIO_VPEN (COLLIE_SCOOP_GPIO_BASE + 7)
#define COLLIE_SCP_LB_VOL_CHG SCOOP_GPCR_PA19
#define COLLIE_SCOOP_IO_DIR (COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R | \
- COLLIE_SCP_5VON | COLLIE_SCP_AMP_ON | \
+ COLLIE_SCP_5VON | \
COLLIE_SCP_LB_VOL_CHG)
#define COLLIE_SCOOP_IO_OUT (COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R)
@@ -81,7 +81,7 @@ extern void locomolcd_power(int on);
#define COLLIE_TC35143_GPIO_TBL_CHK UCB_IO_1
#define COLLIE_TC35143_GPIO_VPEN_ON UCB_IO_2
#define COLLIE_GPIO_IR_ON (COLLIE_TC35143_GPIO_BASE + 3)
-#define COLLIE_TC35143_GPIO_AMP_ON UCB_IO_4
+#define COLLIE_GPIO_AMP1_ON (COLLIE_TC35143_GPIO_BASE + 4)
#define COLLIE_TC35143_GPIO_VERSION1 UCB_IO_5
#define COLLIE_TC35143_GPIO_FS8KLPF UCB_IO_5
#define COLLIE_TC35143_GPIO_BUZZER_BIAS UCB_IO_6
@@ -92,4 +92,14 @@ extern void locomolcd_power(int on);
#define COLLIE_TC35143_GPIO_OUT (UCB_IO_1 | UCB_IO_3 | UCB_IO_4 \
| UCB_IO_6)
+/* GPIOs on LoCoMo GA */
+#define COLLIE_LOCOMO_GPIO_BASE (GPIO_MAX + 13 + 10)
+#define COLLIE_GPIO_RTS (COLLIE_LOCOMO_GPIO_BASE + 0)
+#define COLLIE_GPIO_CTS (COLLIE_LOCOMO_GPIO_BASE + 1)
+#define COLLIE_GPIO_DSR (COLLIE_LOCOMO_GPIO_BASE + 2)
+#define COLLIE_GPIO_DTR (COLLIE_LOCOMO_GPIO_BASE + 3)
+#define COLLIE_GPIO_CARD_DETECT (COLLIE_LOCOMO_GPIO_BASE + 13)
+#define COLLIE_GPIO_CARD_RO (COLLIE_LOCOMO_GPIO_BASE + 14)
+#define COLLIE_GPIO_CARD_POWER (COLLIE_LOCOMO_GPIO_BASE + 15)
+
#endif
--
2.1.4
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 14/18] ASoC: pxa: poodle: make use of new locomo GPIO interface
2015-05-25 11:41 [PATCH v4 00/18] new MFD LoCoMo driver set Dmitry Eremin-Solenikov
` (5 preceding siblings ...)
2015-05-25 11:41 ` [PATCH v4 12/18] ARM: sa1100: make collie use new locomo drivers Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 15/18] ARM: pxa: poodle: use new LoCoMo driver Dmitry Eremin-Solenikov
` (2 subsequent siblings)
9 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel, linux-gpio, linux-input, linux-spi, alsa-devel
Since LoCoMo driver has been converted to provide proper gpiolib
interface, make poodle ASoC platform driver use gpiolib API.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
sound/soc/pxa/poodle.c | 52 +++++++++++++++++++-------------------------------
1 file changed, 20 insertions(+), 32 deletions(-)
diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c
index 0fce8c4..c5b7c5e 100644
--- a/sound/soc/pxa/poodle.c
+++ b/sound/soc/pxa/poodle.c
@@ -20,15 +20,11 @@
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
+#include <linux/gpio/consumer.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
-#include <asm/mach-types.h>
-#include <asm/hardware/locomo.h>
-#include <mach/poodle.h>
-#include <mach/audio.h>
-
#include "../codecs/wm8731.h"
#include "pxa2xx-i2s.h"
@@ -42,22 +38,18 @@
static int poodle_jack_func;
static int poodle_spk_func;
+static struct gpio_desc *poodle_mute_l, *poodle_mute_r, *poodle_amp_on;
static void poodle_ext_control(struct snd_soc_dapm_context *dapm)
{
/* set up jack connection */
if (poodle_jack_func == POODLE_HP) {
- /* set = unmute headphone */
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_L, 1);
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_R, 1);
+ gpiod_set_value(poodle_mute_l, 0);
+ gpiod_set_value(poodle_mute_r, 0);
snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
} else {
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_L, 0);
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_R, 0);
+ gpiod_set_value(poodle_mute_l, 1);
+ gpiod_set_value(poodle_mute_r, 1);
snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
}
@@ -84,11 +76,8 @@ static int poodle_startup(struct snd_pcm_substream *substream)
/* we need to unmute the HP at shutdown as the mute burns power on poodle */
static void poodle_shutdown(struct snd_pcm_substream *substream)
{
- /* set = unmute headphone */
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_L, 1);
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_R, 1);
+ gpiod_set_value(poodle_mute_l, 0);
+ gpiod_set_value(poodle_mute_r, 0);
}
static int poodle_hw_params(struct snd_pcm_substream *substream,
@@ -178,12 +167,7 @@ static int poodle_set_spk(struct snd_kcontrol *kcontrol,
static int poodle_amp_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
- if (SND_SOC_DAPM_EVENT_ON(event))
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_AMP_ON, 0);
- else
- locomo_gpio_write(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_AMP_ON, 1);
+ gpiod_set_value(poodle_amp_on, (SND_SOC_DAPM_EVENT_ON(event)));
return 0;
}
@@ -268,13 +252,17 @@ static int poodle_probe(struct platform_device *pdev)
struct snd_soc_card *card = &poodle;
int ret;
- locomo_gpio_set_dir(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_AMP_ON, 0);
- /* should we mute HP at startup - burning power ?*/
- locomo_gpio_set_dir(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_L, 0);
- locomo_gpio_set_dir(&poodle_locomo_device.dev,
- POODLE_LOCOMO_GPIO_MUTE_R, 0);
+ poodle_mute_l = devm_gpiod_get(&pdev->dev, "mute-l", GPIOD_OUT_HIGH);
+ if (IS_ERR(poodle_mute_l))
+ return PTR_ERR(poodle_mute_l);
+
+ poodle_mute_r = devm_gpiod_get(&pdev->dev, "mute-r", GPIOD_OUT_HIGH);
+ if (IS_ERR(poodle_mute_r))
+ return PTR_ERR(poodle_mute_l);
+
+ poodle_amp_on = devm_gpiod_get(&pdev->dev, "amp-on", GPIOD_OUT_LOW);
+ if (IS_ERR(poodle_amp_on))
+ return PTR_ERR(poodle_amp_on);
card->dev = &pdev->dev;
--
2.1.4
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 15/18] ARM: pxa: poodle: use new LoCoMo driver
2015-05-25 11:41 [PATCH v4 00/18] new MFD LoCoMo driver set Dmitry Eremin-Solenikov
` (6 preceding siblings ...)
2015-05-25 11:41 ` [PATCH v4 14/18] ASoC: pxa: poodle: make use of new locomo GPIO interface Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-26 21:18 ` Robert Jarzmik
2015-05-25 11:41 ` [PATCH v4 17/18] video: backlight: drop old locomo bl/lcd driver Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 18/18] ARM: drop old LoCoMo driver Dmitry Eremin-Solenikov
9 siblings, 1 reply; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel, linux-gpio, linux-input, linux-spi, alsa-devel
Convert poodle to use new mfd-based LoCoMo driver.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm/mach-pxa/Kconfig | 1 -
arch/arm/mach-pxa/include/mach/poodle.h | 6 ----
arch/arm/mach-pxa/poodle.c | 58 ++++++++++++++++++++++++++++++---
3 files changed, 54 insertions(+), 11 deletions(-)
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 8896e71..a2756b0 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -481,7 +481,6 @@ config MACH_POODLE
bool "Enable Sharp SL-5600 (Poodle) Support"
depends on PXA_SHARPSL
select PXA25x
- select SHARP_LOCOMO
config MACH_CORGI
bool "Enable Sharp SL-C700 (Corgi) Support"
diff --git a/arch/arm/mach-pxa/include/mach/poodle.h b/arch/arm/mach-pxa/include/mach/poodle.h
index b56b193..5905cf1 100644
--- a/arch/arm/mach-pxa/include/mach/poodle.h
+++ b/arch/arm/mach-pxa/include/mach/poodle.h
@@ -81,12 +81,6 @@
#define POODLE_GPIO_L_LCLK (POODLE_SCOOP_GPIO_BASE + 10)
#define POODLE_GPIO_HS_OUT (POODLE_SCOOP_GPIO_BASE + 11)
-#define POODLE_LOCOMO_GPIO_AMP_ON LOCOMO_GPIO(8)
-#define POODLE_LOCOMO_GPIO_MUTE_L LOCOMO_GPIO(10)
-#define POODLE_LOCOMO_GPIO_MUTE_R LOCOMO_GPIO(11)
-#define POODLE_LOCOMO_GPIO_232VCC_ON LOCOMO_GPIO(12)
-#define POODLE_LOCOMO_GPIO_JK_B LOCOMO_GPIO(13)
-
#define POODLE_NR_IRQS (IRQ_BOARD_START + 4) /* 4 for LoCoMo */
extern struct platform_device poodle_locomo_device;
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index 195b112..0236ee8 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -23,6 +23,7 @@
#include <linux/delay.h>
#include <linux/mtd/physmap.h>
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/i2c.h>
#include <linux/i2c/pxa-i2c.h>
#include <linux/regulator/machine.h>
@@ -31,6 +32,8 @@
#include <linux/spi/pxa2xx_spi.h>
#include <linux/mtd/sharpsl.h>
#include <linux/memblock.h>
+#include <linux/iio/machine.h>
+#include <linux/mfd/locomo.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
@@ -49,7 +52,6 @@
#include <linux/platform_data/video-pxafb.h>
#include <asm/hardware/scoop.h>
-#include <asm/hardware/locomo.h>
#include <asm/mach/sharpsl_param.h>
#include "generic.h"
@@ -179,7 +181,8 @@ static struct resource locomo_resources[] = {
};
static struct locomo_platform_data locomo_info = {
- .irq_base = IRQ_BOARD_START,
+ .gpio_base = -1,
+ .comadj = 118,
};
struct platform_device poodle_locomo_device = {
@@ -192,8 +195,6 @@ struct platform_device poodle_locomo_device = {
},
};
-EXPORT_SYMBOL(poodle_locomo_device);
-
#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
static struct pxa2xx_spi_master poodle_spi_info = {
.num_chipselect = 1,
@@ -424,6 +425,47 @@ static struct i2c_board_info __initdata poodle_i2c_devices[] = {
{ I2C_BOARD_INFO("wm8731", 0x1b) },
};
+static struct iio_map locomo_iio_map[] = {
+ {
+ .consumer_dev_name = "locomo-lcd.0",
+ .consumer_channel = "comadj",
+ .adc_channel_label = "CH0",
+ },
+ { }
+};
+
+static struct i2c_board_info locomo_i2c_devs[] __initdata = {
+ {
+ I2C_BOARD_INFO("m62332", 0x4e),
+ .platform_data = locomo_iio_map,
+ },
+};
+
+static struct gpiod_lookup_table poodle_audio_gpios_table = {
+ .dev_id = "poodle-audio",
+ .table = {
+ GPIO_LOOKUP("locomo-gpio", 10, "mute-l", GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP("locomo-gpio", 11, "mute-r", GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP("locomo-gpio", 8, "amp-on", GPIO_ACTIVE_LOW),
+ { },
+ },
+}, poodle_bl_gpios_table = {
+ .dev_id = "locomo-backlight.0",
+ .table = {
+ GPIO_LOOKUP("locomo-gpio", 9, "flvr", GPIO_ACTIVE_HIGH),
+ { },
+ },
+}, poodle_lcd_gpios_table = {
+ .dev_id = "locomo-lcd.0",
+ .table = {
+ GPIO_LOOKUP("locomo-gpio", 4, "VSHA", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("locomo-gpio", 5, "VSHD", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("locomo-gpio", 6, "Vee", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("locomo-gpio", 7, "MOD", GPIO_ACTIVE_HIGH),
+ { },
+ },
+};
+
static void poodle_poweroff(void)
{
pxa_restart(REBOOT_HARD, NULL);
@@ -445,6 +487,13 @@ static void __init poodle_init(void)
platform_scoop_config = &poodle_pcmcia_config;
+ if (sharpsl_param.comadj != -1)
+ locomo_info.comadj = sharpsl_param.comadj;
+
+ gpiod_add_lookup_table(&poodle_audio_gpios_table);
+ gpiod_add_lookup_table(&poodle_bl_gpios_table);
+ gpiod_add_lookup_table(&poodle_lcd_gpios_table);
+
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
if (ret)
pr_warn("poodle: Unable to register LoCoMo device\n");
@@ -455,6 +504,7 @@ static void __init poodle_init(void)
pxa_set_ficp_info(&poodle_ficp_platform_data);
pxa_set_i2c_info(NULL);
i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
+ i2c_register_board_info(1, ARRAY_AND_SIZE(locomo_i2c_devs));
poodle_init_spi();
regulator_has_full_constraints();
}
--
2.1.4
^ permalink raw reply related [flat|nested] 27+ messages in thread* Re: [PATCH v4 15/18] ARM: pxa: poodle: use new LoCoMo driver
2015-05-25 11:41 ` [PATCH v4 15/18] ARM: pxa: poodle: use new LoCoMo driver Dmitry Eremin-Solenikov
@ 2015-05-26 21:18 ` Robert Jarzmik
0 siblings, 0 replies; 27+ messages in thread
From: Robert Jarzmik @ 2015-05-26 21:18 UTC (permalink / raw)
To: Dmitry Eremin-Solenikov
Cc: Alexandre Courbot, alsa-devel, Jingoo Han, Russell King,
Samuel Ortiz, Linus Walleij, Dmitry Torokhov, Liam Girdwood,
linux-spi, linux-gpio, Mark Brown, Andrea Adami, linux-arm-kernel,
linux-input, Lee Jones, Daniel Mack
Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> writes:
> Convert poodle to use new mfd-based LoCoMo driver.
>
> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cheers.
--
Robert
^ permalink raw reply [flat|nested] 27+ messages in thread
* [PATCH v4 17/18] video: backlight: drop old locomo bl/lcd driver
2015-05-25 11:41 [PATCH v4 00/18] new MFD LoCoMo driver set Dmitry Eremin-Solenikov
` (7 preceding siblings ...)
2015-05-25 11:41 ` [PATCH v4 15/18] ARM: pxa: poodle: use new LoCoMo driver Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
2015-05-25 11:41 ` [PATCH v4 18/18] ARM: drop old LoCoMo driver Dmitry Eremin-Solenikov
9 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel, linux-gpio, linux-input, linux-spi, alsa-devel
Old locomolcd driver is now completely obsolete by new locomo_bl and
locomo_lcd drivers, so let's drop it.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
drivers/video/backlight/locomolcd.c | 255 ------------------------------------
1 file changed, 255 deletions(-)
delete mode 100644 drivers/video/backlight/locomolcd.c
diff --git a/drivers/video/backlight/locomolcd.c b/drivers/video/backlight/locomolcd.c
deleted file mode 100644
index 6c3ec42..0000000
--- a/drivers/video/backlight/locomolcd.c
+++ /dev/null
@@ -1,255 +0,0 @@
-/*
- * Backlight control code for Sharp Zaurus SL-5500
- *
- * Copyright 2005 John Lenz <lenz@cs.wisc.edu>
- * Maintainer: Pavel Machek <pavel@ucw.cz> (unless John wants to :-)
- * GPL v2
- *
- * This driver assumes single CPU. That's okay, because collie is
- * slightly old hardware, and no one is going to retrofit second CPU to
- * old PDA.
- */
-
-/* LCD power functions */
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/interrupt.h>
-#include <linux/fb.h>
-#include <linux/backlight.h>
-
-#include <asm/hardware/locomo.h>
-#include <asm/irq.h>
-#include <asm/mach/sharpsl_param.h>
-#include <asm/mach-types.h>
-
-#include "../../../arch/arm/mach-sa1100/generic.h"
-
-static struct backlight_device *locomolcd_bl_device;
-static struct locomo_dev *locomolcd_dev;
-static unsigned long locomolcd_flags;
-#define LOCOMOLCD_SUSPENDED 0x01
-
-static void locomolcd_on(int comadj)
-{
- locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHA_ON, 0);
- locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHA_ON, 1);
- mdelay(2);
-
- locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHD_ON, 0);
- locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHD_ON, 1);
- mdelay(2);
-
- locomo_m62332_senddata(locomolcd_dev, comadj, 0);
- mdelay(5);
-
- locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VEE_ON, 0);
- locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VEE_ON, 1);
- mdelay(10);
-
- /* TFTCRST | CPSOUT=0 | CPSEN */
- locomo_writel(0x01, locomolcd_dev->mapbase + LOCOMO_TC);
-
- /* Set CPSD */
- locomo_writel(6, locomolcd_dev->mapbase + LOCOMO_CPSD);
-
- /* TFTCRST | CPSOUT=0 | CPSEN */
- locomo_writel((0x04 | 0x01), locomolcd_dev->mapbase + LOCOMO_TC);
- mdelay(10);
-
- locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_MOD, 0);
- locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_MOD, 1);
-}
-
-static void locomolcd_off(int comadj)
-{
- /* TFTCRST=1 | CPSOUT=1 | CPSEN = 0 */
- locomo_writel(0x06, locomolcd_dev->mapbase + LOCOMO_TC);
- mdelay(1);
-
- locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHA_ON, 0);
- mdelay(110);
-
- locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VEE_ON, 0);
- mdelay(700);
-
- /* TFTCRST=0 | CPSOUT=0 | CPSEN = 0 */
- locomo_writel(0, locomolcd_dev->mapbase + LOCOMO_TC);
- locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_MOD, 0);
- locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHD_ON, 0);
-}
-
-void locomolcd_power(int on)
-{
- int comadj = sharpsl_param.comadj;
- unsigned long flags;
-
- local_irq_save(flags);
-
- if (!locomolcd_dev) {
- local_irq_restore(flags);
- return;
- }
-
- /* read comadj */
- if (comadj == -1 && machine_is_collie())
- comadj = 128;
- if (comadj == -1 && machine_is_poodle())
- comadj = 118;
-
- if (on)
- locomolcd_on(comadj);
- else
- locomolcd_off(comadj);
-
- local_irq_restore(flags);
-}
-EXPORT_SYMBOL(locomolcd_power);
-
-static int current_intensity;
-
-static int locomolcd_set_intensity(struct backlight_device *bd)
-{
- int intensity = bd->props.brightness;
-
- if (bd->props.power != FB_BLANK_UNBLANK)
- intensity = 0;
- if (bd->props.fb_blank != FB_BLANK_UNBLANK)
- intensity = 0;
- if (locomolcd_flags & LOCOMOLCD_SUSPENDED)
- intensity = 0;
-
- switch (intensity) {
- /*
- * AC and non-AC are handled differently,
- * but produce same results in sharp code?
- */
- case 0:
- locomo_frontlight_set(locomolcd_dev, 0, 0, 161);
- break;
- case 1:
- locomo_frontlight_set(locomolcd_dev, 117, 0, 161);
- break;
- case 2:
- locomo_frontlight_set(locomolcd_dev, 163, 0, 148);
- break;
- case 3:
- locomo_frontlight_set(locomolcd_dev, 194, 0, 161);
- break;
- case 4:
- locomo_frontlight_set(locomolcd_dev, 194, 1, 161);
- break;
- default:
- return -ENODEV;
- }
- current_intensity = intensity;
- return 0;
-}
-
-static int locomolcd_get_intensity(struct backlight_device *bd)
-{
- return current_intensity;
-}
-
-static const struct backlight_ops locomobl_data = {
- .get_brightness = locomolcd_get_intensity,
- .update_status = locomolcd_set_intensity,
-};
-
-#ifdef CONFIG_PM_SLEEP
-static int locomolcd_suspend(struct device *dev)
-{
- locomolcd_flags |= LOCOMOLCD_SUSPENDED;
- locomolcd_set_intensity(locomolcd_bl_device);
- return 0;
-}
-
-static int locomolcd_resume(struct device *dev)
-{
- locomolcd_flags &= ~LOCOMOLCD_SUSPENDED;
- locomolcd_set_intensity(locomolcd_bl_device);
- return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(locomolcd_pm_ops, locomolcd_suspend, locomolcd_resume);
-
-static int locomolcd_probe(struct locomo_dev *ldev)
-{
- struct backlight_properties props;
- unsigned long flags;
-
- local_irq_save(flags);
- locomolcd_dev = ldev;
-
- locomo_gpio_set_dir(ldev->dev.parent, LOCOMO_GPIO_FL_VR, 0);
-
- /*
- * the poodle_lcd_power function is called for the first time
- * from fs_initcall, which is before locomo is activated.
- * We need to recall poodle_lcd_power here
- */
- if (machine_is_poodle())
- locomolcd_power(1);
-
- local_irq_restore(flags);
-
- memset(&props, 0, sizeof(struct backlight_properties));
- props.type = BACKLIGHT_RAW;
- props.max_brightness = 4;
- locomolcd_bl_device = backlight_device_register("locomo-bl",
- &ldev->dev, NULL,
- &locomobl_data, &props);
-
- if (IS_ERR(locomolcd_bl_device))
- return PTR_ERR(locomolcd_bl_device);
-
- /* Set up frontlight so that screen is readable */
- locomolcd_bl_device->props.brightness = 2;
- locomolcd_set_intensity(locomolcd_bl_device);
-
- return 0;
-}
-
-static int locomolcd_remove(struct locomo_dev *dev)
-{
- unsigned long flags;
-
- locomolcd_bl_device->props.brightness = 0;
- locomolcd_bl_device->props.power = 0;
- locomolcd_set_intensity(locomolcd_bl_device);
-
- backlight_device_unregister(locomolcd_bl_device);
- local_irq_save(flags);
- locomolcd_dev = NULL;
- local_irq_restore(flags);
- return 0;
-}
-
-static struct locomo_driver poodle_lcd_driver = {
- .drv = {
- .name = "locomo-backlight",
- .pm = &locomolcd_pm_ops,
- },
- .devid = LOCOMO_DEVID_BACKLIGHT,
- .probe = locomolcd_probe,
- .remove = locomolcd_remove,
-};
-
-static int __init locomolcd_init(void)
-{
- return locomo_driver_register(&poodle_lcd_driver);
-}
-
-static void __exit locomolcd_exit(void)
-{
- locomo_driver_unregister(&poodle_lcd_driver);
-}
-
-module_init(locomolcd_init);
-module_exit(locomolcd_exit);
-
-MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>, Pavel Machek <pavel@ucw.cz>");
-MODULE_DESCRIPTION("Collie LCD driver");
-MODULE_LICENSE("GPL");
--
2.1.4
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH v4 18/18] ARM: drop old LoCoMo driver
2015-05-25 11:41 [PATCH v4 00/18] new MFD LoCoMo driver set Dmitry Eremin-Solenikov
` (8 preceding siblings ...)
2015-05-25 11:41 ` [PATCH v4 17/18] video: backlight: drop old locomo bl/lcd driver Dmitry Eremin-Solenikov
@ 2015-05-25 11:41 ` Dmitry Eremin-Solenikov
9 siblings, 0 replies; 27+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-05-25 11:41 UTC (permalink / raw)
To: Russell King, Daniel Mack, Robert Jarzmik, Linus Walleij,
Alexandre Courbot, Dmitry Torokhov, Samuel Ortiz, Lee Jones,
Mark Brown, Jingoo Han, Liam Girdwood, Andrea Adami
Cc: linux-arm-kernel, linux-gpio, linux-input, linux-spi, alsa-devel
As there are no in-kernel users of old locomo driver, drop all
alltogether. Remove Kconfig entry, driver and header.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm/common/Kconfig | 3 -
arch/arm/common/Makefile | 1 -
arch/arm/common/locomo.c | 914 ---------------------------------
arch/arm/include/asm/hardware/locomo.h | 221 --------
4 files changed, 1139 deletions(-)
delete mode 100644 arch/arm/common/locomo.c
delete mode 100644 arch/arm/include/asm/hardware/locomo.h
diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig
index c3a4e9c..76c9970 100644
--- a/arch/arm/common/Kconfig
+++ b/arch/arm/common/Kconfig
@@ -9,9 +9,6 @@ config DMABOUNCE
bool
select ZONE_DMA
-config SHARP_LOCOMO
- bool
-
config SHARP_PARAM
bool
diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
index 70b1eff..437c79a 100644
--- a/arch/arm/common/Makefile
+++ b/arch/arm/common/Makefile
@@ -7,7 +7,6 @@ obj-y += firmware.o
obj-$(CONFIG_ICST) += icst.o
obj-$(CONFIG_SA1111) += sa1111.o
obj-$(CONFIG_DMABOUNCE) += dmabounce.o
-obj-$(CONFIG_SHARP_LOCOMO) += locomo.o
obj-$(CONFIG_SHARP_PARAM) += sharpsl_param.o
obj-$(CONFIG_SHARP_SCOOP) += scoop.o
obj-$(CONFIG_PCI_HOST_ITE8152) += it8152.o
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
deleted file mode 100644
index b55c362..0000000
--- a/arch/arm/common/locomo.c
+++ /dev/null
@@ -1,914 +0,0 @@
-/*
- * linux/arch/arm/common/locomo.c
- *
- * Sharp LoCoMo support
- *
- * 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 file contains all generic LoCoMo support.
- *
- * All initialization functions provided here are intended to be called
- * from machine specific code with proper arguments when required.
- *
- * Based on sa1111.c
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/io.h>
-
-#include <mach/hardware.h>
-#include <asm/irq.h>
-#include <asm/mach/irq.h>
-
-#include <asm/hardware/locomo.h>
-
-/* LoCoMo Interrupts */
-#define IRQ_LOCOMO_KEY (0)
-#define IRQ_LOCOMO_GPIO (1)
-#define IRQ_LOCOMO_LT (2)
-#define IRQ_LOCOMO_SPI (3)
-
-/* M62332 output channel selection */
-#define M62332_EVR_CH 1 /* M62332 volume channel number */
- /* 0 : CH.1 , 1 : CH. 2 */
-/* DAC send data */
-#define M62332_SLAVE_ADDR 0x4e /* Slave address */
-#define M62332_W_BIT 0x00 /* W bit (0 only) */
-#define M62332_SUB_ADDR 0x00 /* Sub address */
-#define M62332_A_BIT 0x00 /* A bit (0 only) */
-
-/* DAC setup and hold times (expressed in us) */
-#define DAC_BUS_FREE_TIME 5 /* 4.7 us */
-#define DAC_START_SETUP_TIME 5 /* 4.7 us */
-#define DAC_STOP_SETUP_TIME 4 /* 4.0 us */
-#define DAC_START_HOLD_TIME 5 /* 4.7 us */
-#define DAC_SCL_LOW_HOLD_TIME 5 /* 4.7 us */
-#define DAC_SCL_HIGH_HOLD_TIME 4 /* 4.0 us */
-#define DAC_DATA_SETUP_TIME 1 /* 250 ns */
-#define DAC_DATA_HOLD_TIME 1 /* 300 ns */
-#define DAC_LOW_SETUP_TIME 1 /* 300 ns */
-#define DAC_HIGH_SETUP_TIME 1 /* 1000 ns */
-
-/* the following is the overall data for the locomo chip */
-struct locomo {
- struct device *dev;
- unsigned long phys;
- unsigned int irq;
- int irq_base;
- spinlock_t lock;
- void __iomem *base;
-#ifdef CONFIG_PM
- void *saved_state;
-#endif
-};
-
-struct locomo_dev_info {
- unsigned long offset;
- unsigned long length;
- unsigned int devid;
- unsigned int irq[1];
- const char * name;
-};
-
-/* All the locomo devices. If offset is non-zero, the mapbase for the
- * locomo_dev will be set to the chip base plus offset. If offset is
- * zero, then the mapbase for the locomo_dev will be set to zero. An
- * offset of zero means the device only uses GPIOs or other helper
- * functions inside this file */
-static struct locomo_dev_info locomo_devices[] = {
- {
- .devid = LOCOMO_DEVID_KEYBOARD,
- .irq = { IRQ_LOCOMO_KEY },
- .name = "locomo-keyboard",
- .offset = LOCOMO_KEYBOARD,
- .length = 16,
- },
- {
- .devid = LOCOMO_DEVID_FRONTLIGHT,
- .irq = {},
- .name = "locomo-frontlight",
- .offset = LOCOMO_FRONTLIGHT,
- .length = 8,
-
- },
- {
- .devid = LOCOMO_DEVID_BACKLIGHT,
- .irq = {},
- .name = "locomo-backlight",
- .offset = LOCOMO_BACKLIGHT,
- .length = 8,
- },
- {
- .devid = LOCOMO_DEVID_AUDIO,
- .irq = {},
- .name = "locomo-audio",
- .offset = LOCOMO_AUDIO,
- .length = 4,
- },
- {
- .devid = LOCOMO_DEVID_LED,
- .irq = {},
- .name = "locomo-led",
- .offset = LOCOMO_LED,
- .length = 8,
- },
- {
- .devid = LOCOMO_DEVID_UART,
- .irq = {},
- .name = "locomo-uart",
- .offset = 0,
- .length = 0,
- },
- {
- .devid = LOCOMO_DEVID_SPI,
- .irq = {},
- .name = "locomo-spi",
- .offset = LOCOMO_SPI,
- .length = 0x30,
- },
-};
-
-static void locomo_handler(unsigned int irq, struct irq_desc *desc)
-{
- struct locomo *lchip = irq_get_chip_data(irq);
- int req, i;
-
- /* Acknowledge the parent IRQ */
- desc->irq_data.chip->irq_ack(&desc->irq_data);
-
- /* check why this interrupt was generated */
- req = locomo_readl(lchip->base + LOCOMO_ICR) & 0x0f00;
-
- if (req) {
- /* generate the next interrupt(s) */
- irq = lchip->irq_base;
- for (i = 0; i <= 3; i++, irq++) {
- if (req & (0x0100 << i)) {
- generic_handle_irq(irq);
- }
-
- }
- }
-}
-
-static void locomo_ack_irq(struct irq_data *d)
-{
-}
-
-static void locomo_mask_irq(struct irq_data *d)
-{
- struct locomo *lchip = irq_data_get_irq_chip_data(d);
- unsigned int r;
- r = locomo_readl(lchip->base + LOCOMO_ICR);
- r &= ~(0x0010 << (d->irq - lchip->irq_base));
- locomo_writel(r, lchip->base + LOCOMO_ICR);
-}
-
-static void locomo_unmask_irq(struct irq_data *d)
-{
- struct locomo *lchip = irq_data_get_irq_chip_data(d);
- unsigned int r;
- r = locomo_readl(lchip->base + LOCOMO_ICR);
- r |= (0x0010 << (d->irq - lchip->irq_base));
- locomo_writel(r, lchip->base + LOCOMO_ICR);
-}
-
-static struct irq_chip locomo_chip = {
- .name = "LOCOMO",
- .irq_ack = locomo_ack_irq,
- .irq_mask = locomo_mask_irq,
- .irq_unmask = locomo_unmask_irq,
-};
-
-static void locomo_setup_irq(struct locomo *lchip)
-{
- int irq = lchip->irq_base;
-
- /*
- * Install handler for IRQ_LOCOMO_HW.
- */
- irq_set_irq_type(lchip->irq, IRQ_TYPE_EDGE_FALLING);
- irq_set_chip_data(lchip->irq, lchip);
- irq_set_chained_handler(lchip->irq, locomo_handler);
-
- /* Install handlers for IRQ_LOCOMO_* */
- for ( ; irq <= lchip->irq_base + 3; irq++) {
- irq_set_chip_and_handler(irq, &locomo_chip, handle_level_irq);
- irq_set_chip_data(irq, lchip);
- set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
- }
-}
-
-
-static void locomo_dev_release(struct device *_dev)
-{
- struct locomo_dev *dev = LOCOMO_DEV(_dev);
-
- kfree(dev);
-}
-
-static int
-locomo_init_one_child(struct locomo *lchip, struct locomo_dev_info *info)
-{
- struct locomo_dev *dev;
- int ret;
-
- dev = kzalloc(sizeof(struct locomo_dev), GFP_KERNEL);
- if (!dev) {
- ret = -ENOMEM;
- goto out;
- }
-
- /*
- * If the parent device has a DMA mask associated with it,
- * propagate it down to the children.
- */
- if (lchip->dev->dma_mask) {
- dev->dma_mask = *lchip->dev->dma_mask;
- dev->dev.dma_mask = &dev->dma_mask;
- }
-
- dev_set_name(&dev->dev, "%s", info->name);
- dev->devid = info->devid;
- dev->dev.parent = lchip->dev;
- dev->dev.bus = &locomo_bus_type;
- dev->dev.release = locomo_dev_release;
- dev->dev.coherent_dma_mask = lchip->dev->coherent_dma_mask;
-
- if (info->offset)
- dev->mapbase = lchip->base + info->offset;
- else
- dev->mapbase = 0;
- dev->length = info->length;
-
- dev->irq[0] = (lchip->irq_base == NO_IRQ) ?
- NO_IRQ : lchip->irq_base + info->irq[0];
-
- ret = device_register(&dev->dev);
- if (ret) {
- out:
- kfree(dev);
- }
- return ret;
-}
-
-#ifdef CONFIG_PM
-
-struct locomo_save_data {
- u16 LCM_GPO;
- u16 LCM_SPICT;
- u16 LCM_GPE;
- u16 LCM_ASD;
- u16 LCM_SPIMD;
-};
-
-static int locomo_suspend(struct platform_device *dev, pm_message_t state)
-{
- struct locomo *lchip = platform_get_drvdata(dev);
- struct locomo_save_data *save;
- unsigned long flags;
-
- save = kmalloc(sizeof(struct locomo_save_data), GFP_KERNEL);
- if (!save)
- return -ENOMEM;
-
- lchip->saved_state = save;
-
- spin_lock_irqsave(&lchip->lock, flags);
-
- save->LCM_GPO = locomo_readl(lchip->base + LOCOMO_GPO); /* GPIO */
- locomo_writel(0x00, lchip->base + LOCOMO_GPO);
- save->LCM_SPICT = locomo_readl(lchip->base + LOCOMO_SPI + LOCOMO_SPICT); /* SPI */
- locomo_writel(0x40, lchip->base + LOCOMO_SPI + LOCOMO_SPICT);
- save->LCM_GPE = locomo_readl(lchip->base + LOCOMO_GPE); /* GPIO */
- locomo_writel(0x00, lchip->base + LOCOMO_GPE);
- save->LCM_ASD = locomo_readl(lchip->base + LOCOMO_ASD); /* ADSTART */
- locomo_writel(0x00, lchip->base + LOCOMO_ASD);
- save->LCM_SPIMD = locomo_readl(lchip->base + LOCOMO_SPI + LOCOMO_SPIMD); /* SPI */
- locomo_writel(0x3C14, lchip->base + LOCOMO_SPI + LOCOMO_SPIMD);
-
- locomo_writel(0x00, lchip->base + LOCOMO_PAIF);
- locomo_writel(0x00, lchip->base + LOCOMO_DAC);
- locomo_writel(0x00, lchip->base + LOCOMO_BACKLIGHT + LOCOMO_TC);
-
- if ((locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT0) & 0x88) && (locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT1) & 0x88))
- locomo_writel(0x00, lchip->base + LOCOMO_C32K); /* CLK32 off */
- else
- /* 18MHz already enabled, so no wait */
- locomo_writel(0xc1, lchip->base + LOCOMO_C32K); /* CLK32 on */
-
- locomo_writel(0x00, lchip->base + LOCOMO_TADC); /* 18MHz clock off*/
- locomo_writel(0x00, lchip->base + LOCOMO_AUDIO + LOCOMO_ACC); /* 22MHz/24MHz clock off */
- locomo_writel(0x00, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS); /* FL */
-
- spin_unlock_irqrestore(&lchip->lock, flags);
-
- return 0;
-}
-
-static int locomo_resume(struct platform_device *dev)
-{
- struct locomo *lchip = platform_get_drvdata(dev);
- struct locomo_save_data *save;
- unsigned long r;
- unsigned long flags;
-
- save = lchip->saved_state;
- if (!save)
- return 0;
-
- spin_lock_irqsave(&lchip->lock, flags);
-
- locomo_writel(save->LCM_GPO, lchip->base + LOCOMO_GPO);
- locomo_writel(save->LCM_SPICT, lchip->base + LOCOMO_SPI + LOCOMO_SPICT);
- locomo_writel(save->LCM_GPE, lchip->base + LOCOMO_GPE);
- locomo_writel(save->LCM_ASD, lchip->base + LOCOMO_ASD);
- locomo_writel(save->LCM_SPIMD, lchip->base + LOCOMO_SPI + LOCOMO_SPIMD);
-
- locomo_writel(0x00, lchip->base + LOCOMO_C32K);
- locomo_writel(0x90, lchip->base + LOCOMO_TADC);
-
- locomo_writel(0, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KSC);
- r = locomo_readl(lchip->base + LOCOMO_KEYBOARD + LOCOMO_KIC);
- r &= 0xFEFF;
- locomo_writel(r, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KIC);
- locomo_writel(0x1, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KCMD);
-
- spin_unlock_irqrestore(&lchip->lock, flags);
-
- lchip->saved_state = NULL;
- kfree(save);
-
- return 0;
-}
-#endif
-
-
-/**
- * locomo_probe - probe for a single LoCoMo chip.
- * @phys_addr: physical address of device.
- *
- * Probe for a LoCoMo chip. This must be called
- * before any other locomo-specific code.
- *
- * Returns:
- * %-ENODEV device not found.
- * %-EBUSY physical address already marked in-use.
- * %0 successful.
- */
-static int
-__locomo_probe(struct device *me, struct resource *mem, int irq)
-{
- struct locomo_platform_data *pdata = me->platform_data;
- struct locomo *lchip;
- unsigned long r;
- int i, ret = -ENODEV;
-
- lchip = kzalloc(sizeof(struct locomo), GFP_KERNEL);
- if (!lchip)
- return -ENOMEM;
-
- spin_lock_init(&lchip->lock);
-
- lchip->dev = me;
- dev_set_drvdata(lchip->dev, lchip);
-
- lchip->phys = mem->start;
- lchip->irq = irq;
- lchip->irq_base = (pdata) ? pdata->irq_base : NO_IRQ;
-
- /*
- * Map the whole region. This also maps the
- * registers for our children.
- */
- lchip->base = ioremap(mem->start, PAGE_SIZE);
- if (!lchip->base) {
- ret = -ENOMEM;
- goto out;
- }
-
- /* locomo initialize */
- locomo_writel(0, lchip->base + LOCOMO_ICR);
- /* KEYBOARD */
- locomo_writel(0, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KIC);
-
- /* GPIO */
- locomo_writel(0, lchip->base + LOCOMO_GPO);
- locomo_writel((LOCOMO_GPIO(1) | LOCOMO_GPIO(2) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
- , lchip->base + LOCOMO_GPE);
- locomo_writel((LOCOMO_GPIO(1) | LOCOMO_GPIO(2) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
- , lchip->base + LOCOMO_GPD);
- locomo_writel(0, lchip->base + LOCOMO_GIE);
-
- /* Frontlight */
- locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
- locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD);
-
- /* Longtime timer */
- locomo_writel(0, lchip->base + LOCOMO_LTINT);
- /* SPI */
- locomo_writel(0, lchip->base + LOCOMO_SPI + LOCOMO_SPIIE);
-
- locomo_writel(6 + 8 + 320 + 30 - 10, lchip->base + LOCOMO_ASD);
- r = locomo_readl(lchip->base + LOCOMO_ASD);
- r |= 0x8000;
- locomo_writel(r, lchip->base + LOCOMO_ASD);
-
- locomo_writel(6 + 8 + 320 + 30 - 10 - 128 + 4, lchip->base + LOCOMO_HSD);
- r = locomo_readl(lchip->base + LOCOMO_HSD);
- r |= 0x8000;
- locomo_writel(r, lchip->base + LOCOMO_HSD);
-
- locomo_writel(128 / 8, lchip->base + LOCOMO_HSC);
-
- /* XON */
- locomo_writel(0x80, lchip->base + LOCOMO_TADC);
- udelay(1000);
- /* CLK9MEN */
- r = locomo_readl(lchip->base + LOCOMO_TADC);
- r |= 0x10;
- locomo_writel(r, lchip->base + LOCOMO_TADC);
- udelay(100);
-
- /* init DAC */
- r = locomo_readl(lchip->base + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB | LOCOMO_DAC_SDAOEB;
- locomo_writel(r, lchip->base + LOCOMO_DAC);
-
- r = locomo_readl(lchip->base + LOCOMO_VER);
- printk(KERN_INFO "LoCoMo Chip: %lu%lu\n", (r >> 8), (r & 0xff));
-
- /*
- * The interrupt controller must be initialised before any
- * other device to ensure that the interrupts are available.
- */
- if (lchip->irq != NO_IRQ && lchip->irq_base != NO_IRQ)
- locomo_setup_irq(lchip);
-
- for (i = 0; i < ARRAY_SIZE(locomo_devices); i++)
- locomo_init_one_child(lchip, &locomo_devices[i]);
- return 0;
-
- out:
- kfree(lchip);
- return ret;
-}
-
-static int locomo_remove_child(struct device *dev, void *data)
-{
- device_unregister(dev);
- return 0;
-}
-
-static void __locomo_remove(struct locomo *lchip)
-{
- device_for_each_child(lchip->dev, NULL, locomo_remove_child);
-
- if (lchip->irq != NO_IRQ) {
- irq_set_chained_handler(lchip->irq, NULL);
- irq_set_handler_data(lchip->irq, NULL);
- }
-
- iounmap(lchip->base);
- kfree(lchip);
-}
-
-static int locomo_probe(struct platform_device *dev)
-{
- struct resource *mem;
- int irq;
-
- mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
- if (!mem)
- return -EINVAL;
- irq = platform_get_irq(dev, 0);
- if (irq < 0)
- return -ENXIO;
-
- return __locomo_probe(&dev->dev, mem, irq);
-}
-
-static int locomo_remove(struct platform_device *dev)
-{
- struct locomo *lchip = platform_get_drvdata(dev);
-
- if (lchip) {
- __locomo_remove(lchip);
- platform_set_drvdata(dev, NULL);
- }
-
- return 0;
-}
-
-/*
- * Not sure if this should be on the system bus or not yet.
- * We really want some way to register a system device at
- * the per-machine level, and then have this driver pick
- * up the registered devices.
- */
-static struct platform_driver locomo_device_driver = {
- .probe = locomo_probe,
- .remove = locomo_remove,
-#ifdef CONFIG_PM
- .suspend = locomo_suspend,
- .resume = locomo_resume,
-#endif
- .driver = {
- .name = "locomo",
- },
-};
-
-/*
- * Get the parent device driver (us) structure
- * from a child function device
- */
-static inline struct locomo *locomo_chip_driver(struct locomo_dev *ldev)
-{
- return (struct locomo *)dev_get_drvdata(ldev->dev.parent);
-}
-
-void locomo_gpio_set_dir(struct device *dev, unsigned int bits, unsigned int dir)
-{
- struct locomo *lchip = dev_get_drvdata(dev);
- unsigned long flags;
- unsigned int r;
-
- if (!lchip)
- return;
-
- spin_lock_irqsave(&lchip->lock, flags);
-
- r = locomo_readl(lchip->base + LOCOMO_GPD);
- if (dir)
- r |= bits;
- else
- r &= ~bits;
- locomo_writel(r, lchip->base + LOCOMO_GPD);
-
- r = locomo_readl(lchip->base + LOCOMO_GPE);
- if (dir)
- r |= bits;
- else
- r &= ~bits;
- locomo_writel(r, lchip->base + LOCOMO_GPE);
-
- spin_unlock_irqrestore(&lchip->lock, flags);
-}
-EXPORT_SYMBOL(locomo_gpio_set_dir);
-
-int locomo_gpio_read_level(struct device *dev, unsigned int bits)
-{
- struct locomo *lchip = dev_get_drvdata(dev);
- unsigned long flags;
- unsigned int ret;
-
- if (!lchip)
- return -ENODEV;
-
- spin_lock_irqsave(&lchip->lock, flags);
- ret = locomo_readl(lchip->base + LOCOMO_GPL);
- spin_unlock_irqrestore(&lchip->lock, flags);
-
- ret &= bits;
- return ret;
-}
-EXPORT_SYMBOL(locomo_gpio_read_level);
-
-int locomo_gpio_read_output(struct device *dev, unsigned int bits)
-{
- struct locomo *lchip = dev_get_drvdata(dev);
- unsigned long flags;
- unsigned int ret;
-
- if (!lchip)
- return -ENODEV;
-
- spin_lock_irqsave(&lchip->lock, flags);
- ret = locomo_readl(lchip->base + LOCOMO_GPO);
- spin_unlock_irqrestore(&lchip->lock, flags);
-
- ret &= bits;
- return ret;
-}
-EXPORT_SYMBOL(locomo_gpio_read_output);
-
-void locomo_gpio_write(struct device *dev, unsigned int bits, unsigned int set)
-{
- struct locomo *lchip = dev_get_drvdata(dev);
- unsigned long flags;
- unsigned int r;
-
- if (!lchip)
- return;
-
- spin_lock_irqsave(&lchip->lock, flags);
-
- r = locomo_readl(lchip->base + LOCOMO_GPO);
- if (set)
- r |= bits;
- else
- r &= ~bits;
- locomo_writel(r, lchip->base + LOCOMO_GPO);
-
- spin_unlock_irqrestore(&lchip->lock, flags);
-}
-EXPORT_SYMBOL(locomo_gpio_write);
-
-static void locomo_m62332_sendbit(void *mapbase, int bit)
-{
- unsigned int r;
-
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_DATA_HOLD_TIME); /* 300 nsec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
-
- if (bit & 1) {
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SDAOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- } else {
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SDAOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- }
-
- udelay(DAC_DATA_SETUP_TIME); /* 250 nsec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.0 usec */
-}
-
-void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int channel)
-{
- struct locomo *lchip = locomo_chip_driver(ldev);
- int i;
- unsigned char data;
- unsigned int r;
- void *mapbase = lchip->base;
- unsigned long flags;
-
- spin_lock_irqsave(&lchip->lock, flags);
-
- /* Start */
- udelay(DAC_BUS_FREE_TIME); /* 5.0 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB | LOCOMO_DAC_SDAOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.0 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SDAOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_START_HOLD_TIME); /* 5.0 usec */
- udelay(DAC_DATA_HOLD_TIME); /* 300 nsec */
-
- /* Send slave address and W bit (LSB is W bit) */
- data = (M62332_SLAVE_ADDR << 1) | M62332_W_BIT;
- for (i = 1; i <= 8; i++) {
- locomo_m62332_sendbit(mapbase, data >> (8 - i));
- }
-
- /* Check A bit */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SDAOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
- if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
- printk(KERN_WARNING "locomo: m62332_senddata Error 1\n");
- goto out;
- }
-
- /* Send Sub address (LSB is channel select) */
- /* channel = 0 : ch1 select */
- /* = 1 : ch2 select */
- data = M62332_SUB_ADDR + channel;
- for (i = 1; i <= 8; i++) {
- locomo_m62332_sendbit(mapbase, data >> (8 - i));
- }
-
- /* Check A bit */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SDAOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
- if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
- printk(KERN_WARNING "locomo: m62332_senddata Error 2\n");
- goto out;
- }
-
- /* Send DAC data */
- for (i = 1; i <= 8; i++) {
- locomo_m62332_sendbit(mapbase, dac_data >> (8 - i));
- }
-
- /* Check A bit */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SDAOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
- if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
- printk(KERN_WARNING "locomo: m62332_senddata Error 3\n");
- }
-
-out:
- /* stop */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r &= ~(LOCOMO_DAC_SCLOEB);
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4 usec */
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SDAOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4 usec */
-
- r = locomo_readl(mapbase + LOCOMO_DAC);
- r |= LOCOMO_DAC_SCLOEB | LOCOMO_DAC_SDAOEB;
- locomo_writel(r, mapbase + LOCOMO_DAC);
- udelay(DAC_LOW_SETUP_TIME); /* 1000 nsec */
- udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
-
- spin_unlock_irqrestore(&lchip->lock, flags);
-}
-EXPORT_SYMBOL(locomo_m62332_senddata);
-
-/*
- * Frontlight control
- */
-
-void locomo_frontlight_set(struct locomo_dev *dev, int duty, int vr, int bpwf)
-{
- unsigned long flags;
- struct locomo *lchip = locomo_chip_driver(dev);
-
- if (vr)
- locomo_gpio_write(dev->dev.parent, LOCOMO_GPIO_FL_VR, 1);
- else
- locomo_gpio_write(dev->dev.parent, LOCOMO_GPIO_FL_VR, 0);
-
- spin_lock_irqsave(&lchip->lock, flags);
- locomo_writel(bpwf, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
- udelay(100);
- locomo_writel(duty, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD);
- locomo_writel(bpwf | LOCOMO_ALC_EN, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
- spin_unlock_irqrestore(&lchip->lock, flags);
-}
-EXPORT_SYMBOL(locomo_frontlight_set);
-
-/*
- * LoCoMo "Register Access Bus."
- *
- * We model this as a regular bus type, and hang devices directly
- * off this.
- */
-static int locomo_match(struct device *_dev, struct device_driver *_drv)
-{
- struct locomo_dev *dev = LOCOMO_DEV(_dev);
- struct locomo_driver *drv = LOCOMO_DRV(_drv);
-
- return dev->devid == drv->devid;
-}
-
-static int locomo_bus_suspend(struct device *dev, pm_message_t state)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = 0;
-
- if (drv && drv->suspend)
- ret = drv->suspend(ldev, state);
- return ret;
-}
-
-static int locomo_bus_resume(struct device *dev)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = 0;
-
- if (drv && drv->resume)
- ret = drv->resume(ldev);
- return ret;
-}
-
-static int locomo_bus_probe(struct device *dev)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = -ENODEV;
-
- if (drv->probe)
- ret = drv->probe(ldev);
- return ret;
-}
-
-static int locomo_bus_remove(struct device *dev)
-{
- struct locomo_dev *ldev = LOCOMO_DEV(dev);
- struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
- int ret = 0;
-
- if (drv->remove)
- ret = drv->remove(ldev);
- return ret;
-}
-
-struct bus_type locomo_bus_type = {
- .name = "locomo-bus",
- .match = locomo_match,
- .probe = locomo_bus_probe,
- .remove = locomo_bus_remove,
- .suspend = locomo_bus_suspend,
- .resume = locomo_bus_resume,
-};
-
-int locomo_driver_register(struct locomo_driver *driver)
-{
- driver->drv.bus = &locomo_bus_type;
- return driver_register(&driver->drv);
-}
-EXPORT_SYMBOL(locomo_driver_register);
-
-void locomo_driver_unregister(struct locomo_driver *driver)
-{
- driver_unregister(&driver->drv);
-}
-EXPORT_SYMBOL(locomo_driver_unregister);
-
-static int __init locomo_init(void)
-{
- int ret = bus_register(&locomo_bus_type);
- if (ret == 0)
- platform_driver_register(&locomo_device_driver);
- return ret;
-}
-
-static void __exit locomo_exit(void)
-{
- platform_driver_unregister(&locomo_device_driver);
- bus_unregister(&locomo_bus_type);
-}
-
-module_init(locomo_init);
-module_exit(locomo_exit);
-
-MODULE_DESCRIPTION("Sharp LoCoMo core driver");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
diff --git a/arch/arm/include/asm/hardware/locomo.h b/arch/arm/include/asm/hardware/locomo.h
deleted file mode 100644
index 74e51d6b..0000000
--- a/arch/arm/include/asm/hardware/locomo.h
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * arch/arm/include/asm/hardware/locomo.h
- *
- * This file contains the definitions for the LoCoMo G/A Chip
- *
- * (C) Copyright 2004 John Lenz
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Based on sa1111.h
- */
-#ifndef _ASM_ARCH_LOCOMO
-#define _ASM_ARCH_LOCOMO
-
-#define locomo_writel(val,addr) ({ *(volatile u16 *)(addr) = (val); })
-#define locomo_readl(addr) (*(volatile u16 *)(addr))
-
-/* LOCOMO version */
-#define LOCOMO_VER 0x00
-
-/* Pin status */
-#define LOCOMO_ST 0x04
-
-/* Pin status */
-#define LOCOMO_C32K 0x08
-
-/* Interrupt controller */
-#define LOCOMO_ICR 0x0C
-
-/* MCS decoder for boot selecting */
-#define LOCOMO_MCSX0 0x10
-#define LOCOMO_MCSX1 0x14
-#define LOCOMO_MCSX2 0x18
-#define LOCOMO_MCSX3 0x1c
-
-/* Touch panel controller */
-#define LOCOMO_ASD 0x20 /* AD start delay */
-#define LOCOMO_HSD 0x28 /* HSYS delay */
-#define LOCOMO_HSC 0x2c /* HSYS period */
-#define LOCOMO_TADC 0x30 /* tablet ADC clock */
-
-
-/* Long time timer */
-#define LOCOMO_LTC 0xd8 /* LTC interrupt setting */
-#define LOCOMO_LTINT 0xdc /* LTC interrupt */
-
-/* DAC control signal for LCD (COMADJ ) */
-#define LOCOMO_DAC 0xe0
-/* DAC control */
-#define LOCOMO_DAC_SCLOEB 0x08 /* SCL pin output data */
-#define LOCOMO_DAC_TEST 0x04 /* Test bit */
-#define LOCOMO_DAC_SDA 0x02 /* SDA pin level (read-only) */
-#define LOCOMO_DAC_SDAOEB 0x01 /* SDA pin output data */
-
-/* SPI interface */
-#define LOCOMO_SPI 0x60
-#define LOCOMO_SPIMD 0x00 /* SPI mode setting */
-#define LOCOMO_SPICT 0x04 /* SPI mode control */
-#define LOCOMO_SPIST 0x08 /* SPI status */
-#define LOCOMO_SPI_TEND (1 << 3) /* Transfer end bit */
-#define LOCOMO_SPI_REND (1 << 2) /* Receive end bit */
-#define LOCOMO_SPI_RFW (1 << 1) /* write buffer bit */
-#define LOCOMO_SPI_RFR (1) /* read buffer bit */
-
-#define LOCOMO_SPIIS 0x10 /* SPI interrupt status */
-#define LOCOMO_SPIWE 0x14 /* SPI interrupt status write enable */
-#define LOCOMO_SPIIE 0x18 /* SPI interrupt enable */
-#define LOCOMO_SPIIR 0x1c /* SPI interrupt request */
-#define LOCOMO_SPITD 0x20 /* SPI transfer data write */
-#define LOCOMO_SPIRD 0x24 /* SPI receive data read */
-#define LOCOMO_SPITS 0x28 /* SPI transfer data shift */
-#define LOCOMO_SPIRS 0x2C /* SPI receive data shift */
-
-/* GPIO */
-#define LOCOMO_GPD 0x90 /* GPIO direction */
-#define LOCOMO_GPE 0x94 /* GPIO input enable */
-#define LOCOMO_GPL 0x98 /* GPIO level */
-#define LOCOMO_GPO 0x9c /* GPIO out data setting */
-#define LOCOMO_GRIE 0xa0 /* GPIO rise detection */
-#define LOCOMO_GFIE 0xa4 /* GPIO fall detection */
-#define LOCOMO_GIS 0xa8 /* GPIO edge detection status */
-#define LOCOMO_GWE 0xac /* GPIO status write enable */
-#define LOCOMO_GIE 0xb0 /* GPIO interrupt enable */
-#define LOCOMO_GIR 0xb4 /* GPIO interrupt request */
-#define LOCOMO_GPIO(Nb) (0x01 << (Nb))
-#define LOCOMO_GPIO_RTS LOCOMO_GPIO(0)
-#define LOCOMO_GPIO_CTS LOCOMO_GPIO(1)
-#define LOCOMO_GPIO_DSR LOCOMO_GPIO(2)
-#define LOCOMO_GPIO_DTR LOCOMO_GPIO(3)
-#define LOCOMO_GPIO_LCD_VSHA_ON LOCOMO_GPIO(4)
-#define LOCOMO_GPIO_LCD_VSHD_ON LOCOMO_GPIO(5)
-#define LOCOMO_GPIO_LCD_VEE_ON LOCOMO_GPIO(6)
-#define LOCOMO_GPIO_LCD_MOD LOCOMO_GPIO(7)
-#define LOCOMO_GPIO_DAC_ON LOCOMO_GPIO(8)
-#define LOCOMO_GPIO_FL_VR LOCOMO_GPIO(9)
-#define LOCOMO_GPIO_DAC_SDATA LOCOMO_GPIO(10)
-#define LOCOMO_GPIO_DAC_SCK LOCOMO_GPIO(11)
-#define LOCOMO_GPIO_DAC_SLOAD LOCOMO_GPIO(12)
-#define LOCOMO_GPIO_CARD_DETECT LOCOMO_GPIO(13)
-#define LOCOMO_GPIO_WRITE_PROT LOCOMO_GPIO(14)
-#define LOCOMO_GPIO_CARD_POWER LOCOMO_GPIO(15)
-
-/* Start the definitions of the devices. Each device has an initial
- * base address and a series of offsets from that base address. */
-
-/* Keyboard controller */
-#define LOCOMO_KEYBOARD 0x40
-#define LOCOMO_KIB 0x00 /* KIB level */
-#define LOCOMO_KSC 0x04 /* KSTRB control */
-#define LOCOMO_KCMD 0x08 /* KSTRB command */
-#define LOCOMO_KIC 0x0c /* Key interrupt */
-
-/* Front light adjustment controller */
-#define LOCOMO_FRONTLIGHT 0xc8
-#define LOCOMO_ALS 0x00 /* Adjust light cycle */
-#define LOCOMO_ALD 0x04 /* Adjust light duty */
-
-#define LOCOMO_ALC_EN 0x8000
-
-/* Backlight controller: TFT signal */
-#define LOCOMO_BACKLIGHT 0x38
-#define LOCOMO_TC 0x00 /* TFT control signal */
-#define LOCOMO_CPSD 0x04 /* CPS delay */
-
-/* Audio controller */
-#define LOCOMO_AUDIO 0x54
-#define LOCOMO_ACC 0x00 /* Audio clock */
-#define LOCOMO_PAIF 0xD0 /* PCM audio interface */
-/* Audio clock */
-#define LOCOMO_ACC_XON 0x80
-#define LOCOMO_ACC_XEN 0x40
-#define LOCOMO_ACC_XSEL0 0x00
-#define LOCOMO_ACC_XSEL1 0x20
-#define LOCOMO_ACC_MCLKEN 0x10
-#define LOCOMO_ACC_64FSEN 0x08
-#define LOCOMO_ACC_CLKSEL000 0x00 /* mclk 2 */
-#define LOCOMO_ACC_CLKSEL001 0x01 /* mclk 3 */
-#define LOCOMO_ACC_CLKSEL010 0x02 /* mclk 4 */
-#define LOCOMO_ACC_CLKSEL011 0x03 /* mclk 6 */
-#define LOCOMO_ACC_CLKSEL100 0x04 /* mclk 8 */
-#define LOCOMO_ACC_CLKSEL101 0x05 /* mclk 12 */
-/* PCM audio interface */
-#define LOCOMO_PAIF_SCINV 0x20
-#define LOCOMO_PAIF_SCEN 0x10
-#define LOCOMO_PAIF_LRCRST 0x08
-#define LOCOMO_PAIF_LRCEVE 0x04
-#define LOCOMO_PAIF_LRCINV 0x02
-#define LOCOMO_PAIF_LRCEN 0x01
-
-/* LED controller */
-#define LOCOMO_LED 0xe8
-#define LOCOMO_LPT0 0x00
-#define LOCOMO_LPT1 0x04
-/* LED control */
-#define LOCOMO_LPT_TOFH 0x80
-#define LOCOMO_LPT_TOFL 0x08
-#define LOCOMO_LPT_TOH(TOH) ((TOH & 0x7) << 4)
-#define LOCOMO_LPT_TOL(TOL) ((TOL & 0x7))
-
-extern struct bus_type locomo_bus_type;
-
-#define LOCOMO_DEVID_KEYBOARD 0
-#define LOCOMO_DEVID_FRONTLIGHT 1
-#define LOCOMO_DEVID_BACKLIGHT 2
-#define LOCOMO_DEVID_AUDIO 3
-#define LOCOMO_DEVID_LED 4
-#define LOCOMO_DEVID_UART 5
-#define LOCOMO_DEVID_SPI 6
-
-struct locomo_dev {
- struct device dev;
- unsigned int devid;
- unsigned int irq[1];
-
- void *mapbase;
- unsigned long length;
-
- u64 dma_mask;
-};
-
-#define LOCOMO_DEV(_d) container_of((_d), struct locomo_dev, dev)
-
-#define locomo_get_drvdata(d) dev_get_drvdata(&(d)->dev)
-#define locomo_set_drvdata(d,p) dev_set_drvdata(&(d)->dev, p)
-
-struct locomo_driver {
- struct device_driver drv;
- unsigned int devid;
- int (*probe)(struct locomo_dev *);
- int (*remove)(struct locomo_dev *);
- int (*suspend)(struct locomo_dev *, pm_message_t);
- int (*resume)(struct locomo_dev *);
-};
-
-#define LOCOMO_DRV(_d) container_of((_d), struct locomo_driver, drv)
-
-#define LOCOMO_DRIVER_NAME(_ldev) ((_ldev)->dev.driver->name)
-
-void locomo_lcd_power(struct locomo_dev *, int, unsigned int);
-
-int locomo_driver_register(struct locomo_driver *);
-void locomo_driver_unregister(struct locomo_driver *);
-
-/* GPIO control functions */
-void locomo_gpio_set_dir(struct device *dev, unsigned int bits, unsigned int dir);
-int locomo_gpio_read_level(struct device *dev, unsigned int bits);
-int locomo_gpio_read_output(struct device *dev, unsigned int bits);
-void locomo_gpio_write(struct device *dev, unsigned int bits, unsigned int set);
-
-/* M62332 control function */
-void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int channel);
-
-/* Frontlight control */
-void locomo_frontlight_set(struct locomo_dev *dev, int duty, int vr, int bpwf);
-
-struct locomo_platform_data {
- int irq_base; /* IRQ base for cascaded on-chip IRQs */
-};
-
-#endif
--
2.1.4
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