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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-22 14:50:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-22 14:50:57 -0700
commitc7c8518498e82591d7784452f5674c3aeb4d079c (patch)
tree790ff7e6b6741daf32ec686b9a302b957b07c0f4 /drivers/gpio
parentece236ce2fad9c27a6fd2530f899289025194bce (diff)
parent591567a5ea25852f20b7ef2953f6f72020121199 (diff)
Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6: (61 commits) gpio/mxc/mxs: fix build error introduced by the irq_gc_ack() renaming mcp23s08: add i2c support mcp23s08: isolate spi specific parts mcp23s08: get rid of setup/teardown callbacks gpio/tegra: dt: add binding for gpio polarity mcp23s08: remove unused work queue gpio/da9052: remove a redundant assignment for gpio->da9052 gpio/mxc: add device tree probe support ARM: mxc: use ARCH_NR_GPIOS to define gpio number gpio/mxc: get rid of the uses of cpu_is_mx() gpio/mxc: add missing initialization of basic_mmio_gpio shadow variables gpio: Move mpc5200 gpio driver to drivers/gpio GPIO: DA9052 GPIO module v3 gpio/tegra: Use engineering names in DT compatible property of/gpio: Add new method for getting gpios under different property names gpio/dt: Refine GPIO device tree binding gpio/ml-ioh: fix off-by-one for displaying variable i in dev_err gpio/pca953x: Deprecate meaningless device-tree bindings gpio/pca953x: Remove dynamic platform data pointer gpio/pca953x: Fix IRQ support. ...
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/Kconfig66
-rw-r--r--drivers/gpio/Makefile87
-rw-r--r--drivers/gpio/gpio-74x164.c (renamed from drivers/gpio/74x164.c)33
-rw-r--r--drivers/gpio/gpio-ab8500.c (renamed from drivers/gpio/ab8500-gpio.c)0
-rw-r--r--drivers/gpio/gpio-adp5520.c (renamed from drivers/gpio/adp5520-gpio.c)0
-rw-r--r--drivers/gpio/gpio-adp5588.c (renamed from drivers/gpio/adp5588-gpio.c)0
-rw-r--r--drivers/gpio/gpio-bt8xx.c (renamed from drivers/gpio/bt8xxgpio.c)0
-rw-r--r--drivers/gpio/gpio-cs5535.c (renamed from drivers/gpio/cs5535-gpio.c)0
-rw-r--r--drivers/gpio/gpio-da9052.c277
-rw-r--r--drivers/gpio/gpio-ep93xx.c405
-rw-r--r--drivers/gpio/gpio-exynos4.c5
-rw-r--r--drivers/gpio/gpio-generic.c (renamed from drivers/gpio/basic_mmio_gpio.c)6
-rw-r--r--drivers/gpio/gpio-it8761e.c (renamed from drivers/gpio/it8761e_gpio.c)2
-rw-r--r--drivers/gpio/gpio-janz-ttl.c (renamed from drivers/gpio/janz-ttl.c)0
-rw-r--r--drivers/gpio/gpio-langwell.c (renamed from drivers/gpio/langwell_gpio.c)4
-rw-r--r--drivers/gpio/gpio-max7300.c (renamed from drivers/gpio/max7300.c)2
-rw-r--r--drivers/gpio/gpio-max7301.c (renamed from drivers/gpio/max7301.c)2
-rw-r--r--drivers/gpio/gpio-max730x.c (renamed from drivers/gpio/max730x.c)2
-rw-r--r--drivers/gpio/gpio-max732x.c (renamed from drivers/gpio/max732x.c)2
-rw-r--r--drivers/gpio/gpio-mc33880.c (renamed from drivers/gpio/mc33880.c)2
-rw-r--r--drivers/gpio/gpio-mcp23s08.c (renamed from drivers/gpio/mcp23s08.c)291
-rw-r--r--drivers/gpio/gpio-ml-ioh.c (renamed from drivers/gpio/ml_ioh_gpio.c)2
-rw-r--r--drivers/gpio/gpio-mpc5200.c376
-rw-r--r--drivers/gpio/gpio-mxc.c460
-rw-r--r--drivers/gpio/gpio-mxs.c289
-rw-r--r--drivers/gpio/gpio-omap.c723
-rw-r--r--drivers/gpio/gpio-pca953x.c (renamed from drivers/gpio/pca953x.c)105
-rw-r--r--drivers/gpio/gpio-pcf857x.c (renamed from drivers/gpio/pcf857x.c)2
-rw-r--r--drivers/gpio/gpio-pch.c (renamed from drivers/gpio/pch_gpio.c)0
-rw-r--r--drivers/gpio/gpio-pl061.c (renamed from drivers/gpio/pl061.c)4
-rw-r--r--drivers/gpio/gpio-plat-samsung.c3
-rw-r--r--drivers/gpio/gpio-rdc321x.c (renamed from drivers/gpio/rdc321x-gpio.c)0
-rw-r--r--drivers/gpio/gpio-s5pc100.c5
-rw-r--r--drivers/gpio/gpio-s5pv210.c5
-rw-r--r--drivers/gpio/gpio-sch.c (renamed from drivers/gpio/sch_gpio.c)2
-rw-r--r--drivers/gpio/gpio-stmpe.c (renamed from drivers/gpio/stmpe-gpio.c)0
-rw-r--r--drivers/gpio/gpio-sx150x.c (renamed from drivers/gpio/sx150x.c)0
-rw-r--r--drivers/gpio/gpio-tc3589x.c (renamed from drivers/gpio/tc3589x-gpio.c)0
-rw-r--r--drivers/gpio/gpio-tegra.c441
-rw-r--r--drivers/gpio/gpio-timberdale.c (renamed from drivers/gpio/timbgpio.c)2
-rw-r--r--drivers/gpio/gpio-tps65910.c (renamed from drivers/gpio/tps65910-gpio.c)2
-rw-r--r--drivers/gpio/gpio-twl4030.c (renamed from drivers/gpio/twl4030-gpio.c)2
-rw-r--r--drivers/gpio/gpio-u300.c5
-rw-r--r--drivers/gpio/gpio-ucb1400.c (renamed from drivers/gpio/ucb1400_gpio.c)0
-rw-r--r--drivers/gpio/gpio-vr41xx.c (renamed from drivers/gpio/vr41xx_giu.c)2
-rw-r--r--drivers/gpio/gpio-vx855.c (renamed from drivers/gpio/vx855_gpio.c)0
-rw-r--r--drivers/gpio/gpio-wm831x.c (renamed from drivers/gpio/wm831x-gpio.c)2
-rw-r--r--drivers/gpio/gpio-wm8350.c (renamed from drivers/gpio/wm8350-gpiolib.c)2
-rw-r--r--drivers/gpio/gpio-wm8994.c (renamed from drivers/gpio/wm8994-gpio.c)2
-rw-r--r--drivers/gpio/gpio-xilinx.c (renamed from drivers/gpio/xilinx_gpio.c)0
50 files changed, 2820 insertions, 802 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 2967002a9f8..363498697c2 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -63,33 +63,58 @@ config GPIO_SYSFS
Kernel drivers may also request that a particular GPIO be
exported to userspace; this can be useful when debugging.
+config GPIO_GENERIC
+ tristate
+
# put drivers in the right section, in alphabetical order
+config GPIO_DA9052
+ tristate "Dialog DA9052 GPIO"
+ depends on PMIC_DA9052
+ help
+ Say yes here to enable the GPIO driver for the DA9052 chip.
+
config GPIO_MAX730X
tristate
comment "Memory mapped GPIO drivers:"
-config GPIO_BASIC_MMIO_CORE
- tristate
- help
- Provides core functionality for basic memory-mapped GPIO controllers.
-
-config GPIO_BASIC_MMIO
- tristate "Basic memory-mapped GPIO controllers support"
- select GPIO_BASIC_MMIO_CORE
+config GPIO_GENERIC_PLATFORM
+ tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
+ select GPIO_GENERIC
help
- Say yes here to support basic memory-mapped GPIO controllers.
+ Say yes here to support basic platform_device memory-mapped GPIO controllers.
config GPIO_IT8761E
tristate "IT8761E GPIO support"
help
Say yes here to support GPIO functionality of IT8761E super I/O chip.
+config GPIO_EP93XX
+ def_bool y
+ depends on ARCH_EP93XX
+ select GPIO_GENERIC
+
config GPIO_EXYNOS4
def_bool y
depends on CPU_EXYNOS4210
+config GPIO_MPC5200
+ def_bool y
+ depends on PPC_MPC52xx
+
+config GPIO_MXC
+ def_bool y
+ depends on ARCH_MXC
+ select GPIO_GENERIC
+ select GENERIC_IRQ_CHIP
+
+config GPIO_MXS
+ def_bool y
+ depends on ARCH_MXS
+ select GPIO_GENERIC
+ select GENERIC_IRQ_CHIP
+
config GPIO_PLAT_SAMSUNG
def_bool y
depends on SAMSUNG_GPIOLIB_4BIT
@@ -137,9 +162,6 @@ config GPIO_SCH
The Intel Tunnel Creek processor has 5 GPIOs powered by the
core power rail and 9 from suspend power supply.
- This driver can also be built as a module. If so, the module
- will be called sch-gpio.
-
config GPIO_VX855
tristate "VIA VX855/VX875 GPIO"
depends on MFD_SUPPORT && PCI
@@ -202,9 +224,6 @@ config GPIO_PCA953X
16 bits: pca9535, pca9539, pca9555, tca6416
- This driver can also be built as a module. If so, the module
- will be called pca953x.
-
config GPIO_PCA953X_IRQ
bool "Interrupt controller support for PCA953x"
depends on GPIO_PCA953X=y
@@ -296,17 +315,12 @@ config GPIO_ADP5520
This option enables support for on-chip GPIO found
on Analog Devices ADP5520 PMICs.
- To compile this driver as a module, choose M here: the module will
- be called adp5520-gpio.
-
config GPIO_ADP5588
tristate "ADP5588 I2C GPIO expander"
depends on I2C
help
This option enables support for 18 GPIOs found
on Analog Devices ADP5588 GPIO Expanders.
- To compile this driver as a module, choose M here: the module will be
- called adp5588-gpio.
config GPIO_ADP5588_IRQ
bool "Interrupt controller support for ADP5588"
@@ -398,10 +412,11 @@ config GPIO_MAX7301
GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
config GPIO_MCP23S08
- tristate "Microchip MCP23Sxx I/O expander"
- depends on SPI_MASTER
+ tristate "Microchip MCP23xxx I/O expander"
+ depends on SPI_MASTER || I2C
help
- SPI driver for Microchip MCP23S08/MPC23S17 I/O expanders.
+ SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
+ I/O expanders.
This provides a GPIO interface supporting inputs and outputs.
config GPIO_MC33880
@@ -428,9 +443,6 @@ config GPIO_UCB1400
This enables support for the Philips UCB1400 GPIO pins.
The UCB1400 is an AC97 audio codec.
- To compile this driver as a module, choose M here: the
- module will be called ucb1400_gpio.
-
comment "MODULbus GPIO expanders:"
config GPIO_JANZ_TTL
@@ -441,7 +453,7 @@ config GPIO_JANZ_TTL
This driver provides support for driving the pins in output
mode only. Input mode is not supported.
-config AB8500_GPIO
+config GPIO_AB8500
bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions"
depends on AB8500_CORE && BROKEN
help
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index b605f8ec6fb..72071125139 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -4,47 +4,56 @@ ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG
obj-$(CONFIG_GPIOLIB) += gpiolib.o
-obj-$(CONFIG_GPIO_ADP5520) += adp5520-gpio.o
-obj-$(CONFIG_GPIO_ADP5588) += adp5588-gpio.o
-obj-$(CONFIG_GPIO_BASIC_MMIO_CORE) += basic_mmio_gpio.o
-obj-$(CONFIG_GPIO_BASIC_MMIO) += basic_mmio_gpio.o
+# Device drivers. Generally keep list sorted alphabetically
+obj-$(CONFIG_GPIO_GENERIC) += gpio-generic.o
+
+obj-$(CONFIG_GPIO_74X164) += gpio-74x164.o
+obj-$(CONFIG_GPIO_AB8500) += gpio-ab8500.o
+obj-$(CONFIG_GPIO_ADP5520) += gpio-adp5520.o
+obj-$(CONFIG_GPIO_ADP5588) += gpio-adp5588.o
+obj-$(CONFIG_GPIO_BT8XX) += gpio-bt8xx.o
+obj-$(CONFIG_GPIO_CS5535) += gpio-cs5535.o
+obj-$(CONFIG_GPIO_DA9052) += gpio-da9052.o
+obj-$(CONFIG_GPIO_EP93XX) += gpio-ep93xx.o
obj-$(CONFIG_GPIO_EXYNOS4) += gpio-exynos4.o
+obj-$(CONFIG_GPIO_IT8761E) += gpio-it8761e.o
+obj-$(CONFIG_GPIO_JANZ_TTL) += gpio-janz-ttl.o
+obj-$(CONFIG_GPIO_LANGWELL) += gpio-langwell.o
+obj-$(CONFIG_GPIO_MAX730X) += gpio-max730x.o
+obj-$(CONFIG_GPIO_MAX7300) += gpio-max7300.o
+obj-$(CONFIG_GPIO_MAX7301) += gpio-max7301.o
+obj-$(CONFIG_GPIO_MAX732X) += gpio-max732x.o
+obj-$(CONFIG_GPIO_MC33880) += gpio-mc33880.o
+obj-$(CONFIG_GPIO_MCP23S08) += gpio-mcp23s08.o
+obj-$(CONFIG_GPIO_ML_IOH) += gpio-ml-ioh.o
+obj-$(CONFIG_GPIO_MPC5200) += gpio-mpc5200.o
+obj-$(CONFIG_GPIO_MXC) += gpio-mxc.o
+obj-$(CONFIG_GPIO_MXS) += gpio-mxs.o
+obj-$(CONFIG_PLAT_NOMADIK) += gpio-nomadik.o
+obj-$(CONFIG_ARCH_OMAP) += gpio-omap.o
+obj-$(CONFIG_GPIO_PCA953X) += gpio-pca953x.o
+obj-$(CONFIG_GPIO_PCF857X) += gpio-pcf857x.o
+obj-$(CONFIG_GPIO_PCH) += gpio-pch.o
+obj-$(CONFIG_GPIO_PL061) += gpio-pl061.o
+obj-$(CONFIG_GPIO_RDC321X) += gpio-rdc321x.o
+
obj-$(CONFIG_GPIO_PLAT_SAMSUNG) += gpio-plat-samsung.o
obj-$(CONFIG_GPIO_S5PC100) += gpio-s5pc100.o
obj-$(CONFIG_GPIO_S5PV210) += gpio-s5pv210.o
-obj-$(CONFIG_GPIO_LANGWELL) += langwell_gpio.o
-obj-$(CONFIG_GPIO_MAX730X) += max730x.o
-obj-$(CONFIG_GPIO_MAX7300) += max7300.o
-obj-$(CONFIG_GPIO_MAX7301) += max7301.o
-obj-$(CONFIG_GPIO_MAX732X) += max732x.o
-obj-$(CONFIG_GPIO_MC33880) += mc33880.o
-obj-$(CONFIG_GPIO_MCP23S08) += mcp23s08.o
-obj-$(CONFIG_GPIO_74X164) += 74x164.o
-obj-$(CONFIG_ARCH_OMAP) += gpio-omap.o
-obj-$(CONFIG_GPIO_PCA953X) += pca953x.o
-obj-$(CONFIG_GPIO_PCF857X) += pcf857x.o
-obj-$(CONFIG_GPIO_PCH) += pch_gpio.o
-obj-$(CONFIG_GPIO_PL061) += pl061.o
-obj-$(CONFIG_GPIO_STMPE) += stmpe-gpio.o
-obj-$(CONFIG_GPIO_TC3589X) += tc3589x-gpio.o
-obj-$(CONFIG_GPIO_TIMBERDALE) += timbgpio.o
-obj-$(CONFIG_GPIO_TWL4030) += twl4030-gpio.o
-obj-$(CONFIG_GPIO_UCB1400) += ucb1400_gpio.o
-obj-$(CONFIG_GPIO_XILINX) += xilinx_gpio.o
-obj-$(CONFIG_GPIO_CS5535) += cs5535-gpio.o
-obj-$(CONFIG_GPIO_BT8XX) += bt8xxgpio.o
-obj-$(CONFIG_GPIO_IT8761E) += it8761e_gpio.o
-obj-$(CONFIG_GPIO_VR41XX) += vr41xx_giu.o
-obj-$(CONFIG_GPIO_WM831X) += wm831x-gpio.o
-obj-$(CONFIG_GPIO_WM8350) += wm8350-gpiolib.o
-obj-$(CONFIG_GPIO_WM8994) += wm8994-gpio.o
-obj-$(CONFIG_GPIO_SCH) += sch_gpio.o
+
+obj-$(CONFIG_GPIO_SCH) += gpio-sch.o
+obj-$(CONFIG_GPIO_STMPE) += gpio-stmpe.o
+obj-$(CONFIG_GPIO_SX150X) += gpio-sx150x.o
+obj-$(CONFIG_GPIO_TC3589X) += gpio-tc3589x.o
+obj-$(CONFIG_ARCH_TEGRA) += gpio-tegra.o
+obj-$(CONFIG_GPIO_TIMBERDALE) += gpio-timberdale.o
+obj-$(CONFIG_GPIO_TPS65910) += gpio-tps65910.o
+obj-$(CONFIG_GPIO_TWL4030) += gpio-twl4030.o
obj-$(CONFIG_MACH_U300) += gpio-u300.o
-obj-$(CONFIG_PLAT_NOMADIK) += gpio-nomadik.o
-obj-$(CONFIG_GPIO_RDC321X) += rdc321x-gpio.o
-obj-$(CONFIG_GPIO_JANZ_TTL) += janz-ttl.o
-obj-$(CONFIG_GPIO_SX150X) += sx150x.o
-obj-$(CONFIG_GPIO_VX855) += vx855_gpio.o
-obj-$(CONFIG_GPIO_ML_IOH) += ml_ioh_gpio.o
-obj-$(CONFIG_AB8500_GPIO) += ab8500-gpio.o
-obj-$(CONFIG_GPIO_TPS65910) += tps65910-gpio.o
+obj-$(CONFIG_GPIO_UCB1400) += gpio-ucb1400.o
+obj-$(CONFIG_GPIO_VR41XX) += gpio-vr41xx.o
+obj-$(CONFIG_GPIO_VX855) += gpio-vx855.o
+obj-$(CONFIG_GPIO_WM831X) += gpio-wm831x.o
+obj-$(CONFIG_GPIO_WM8350) += gpio-wm8350.o
+obj-$(CONFIG_GPIO_WM8994) += gpio-wm8994.o
+obj-$(CONFIG_GPIO_XILINX) += gpio-xilinx.o
diff --git a/drivers/gpio/74x164.c b/drivers/gpio/gpio-74x164.c
index 84e07021983..ff525c0958d 100644
--- a/drivers/gpio/74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -16,9 +16,6 @@
#include <linux/gpio.h>
#include <linux/slab.h>
-#define GEN_74X164_GPIO_COUNT 8
-
-
struct gen_74x164_chip {
struct spi_device *spi;
struct gpio_chip gpio_chip;
@@ -26,9 +23,7 @@ struct gen_74x164_chip {
u8 port_config;
};
-static void gen_74x164_set_value(struct gpio_chip *, unsigned, int);
-
-static struct gen_74x164_chip *gpio_to_chip(struct gpio_chip *gc)
+static struct gen_74x164_chip *gpio_to_74x164_chip(struct gpio_chip *gc)
{
return container_of(gc, struct gen_74x164_chip, gpio_chip);
}
@@ -39,16 +34,9 @@ static int __gen_74x164_write_config(struct gen_74x164_chip *chip)
&chip->port_config, sizeof(chip->port_config));
}
-static int gen_74x164_direction_output(struct gpio_chip *gc,
- unsigned offset, int val)
-{
- gen_74x164_set_value(gc, offset, val);
- return 0;
-}
-
static int gen_74x164_get_value(struct gpio_chip *gc, unsigned offset)
{
- struct gen_74x164_chip *chip = gpio_to_chip(gc);
+ struct gen_74x164_chip *chip = gpio_to_74x164_chip(gc);
int ret;
mutex_lock(&chip->lock);
@@ -61,7 +49,7 @@ static int gen_74x164_get_value(struct gpio_chip *gc, unsigned offset)
static void gen_74x164_set_value(struct gpio_chip *gc,
unsigned offset, int val)
{
- struct gen_74x164_chip *chip = gpio_to_chip(gc);
+ struct gen_74x164_chip *chip = gpio_to_74x164_chip(gc);
mutex_lock(&chip->lock);
if (val)
@@ -73,6 +61,13 @@ static void gen_74x164_set_value(struct gpio_chip *gc,
mutex_unlock(&chip->lock);
}
+static int gen_74x164_direction_output(struct gpio_chip *gc,
+ unsigned offset, int val)
+{
+ gen_74x164_set_value(gc, offset, val);
+ return 0;
+}
+
static int __devinit gen_74x164_probe(struct spi_device *spi)
{
struct gen_74x164_chip *chip;
@@ -104,12 +99,12 @@ static int __devinit gen_74x164_probe(struct spi_device *spi)
chip->spi = spi;
- chip->gpio_chip.label = GEN_74X164_DRIVER_NAME,
- chip->gpio_chip.direction_output = gen_74x164_direction_output;
+ chip->gpio_chip.label = spi->modalias;
+ chip->gpio_chip.direction_output = gen_74x164_direction_output;
chip->gpio_chip.get = gen_74x164_get_value;
chip->gpio_chip.set = gen_74x164_set_value;
chip->gpio_chip.base = pdata->base;
- chip->gpio_chip.ngpio = GEN_74X164_GPIO_COUNT;
+ chip->gpio_chip.ngpio = 8;
chip->gpio_chip.can_sleep = 1;
chip->gpio_chip.dev = &spi->dev;
chip->gpio_chip.owner = THIS_MODULE;
@@ -157,7 +152,7 @@ static int __devexit gen_74x164_remove(struct spi_device *spi)
static struct spi_driver gen_74x164_driver = {
.driver = {
- .name = GEN_74X164_DRIVER_NAME,
+ .name = "74x164",
.owner = THIS_MODULE,
},
.probe = gen_74x164_probe,
diff --git a/drivers/gpio/ab8500-gpio.c b/drivers/gpio/gpio-ab8500.c
index 970053c89ff..970053c89ff 100644
--- a/drivers/gpio/ab8500-gpio.c
+++ b/drivers/gpio/gpio-ab8500.c
diff --git a/drivers/gpio/adp5520-gpio.c b/drivers/gpio/gpio-adp5520.c
index 9f278153700..9f278153700 100644
--- a/drivers/gpio/adp5520-gpio.c
+++ b/drivers/gpio/gpio-adp5520.c
diff --git a/drivers/gpio/adp5588-gpio.c b/drivers/gpio/gpio-adp5588.c
index 3525ad91877..3525ad91877 100644
--- a/drivers/gpio/adp5588-gpio.c
+++ b/drivers/gpio/gpio-adp5588.c
diff --git a/drivers/gpio/bt8xxgpio.c b/drivers/gpio/gpio-bt8xx.c
index aa4f09ad3ce..aa4f09ad3ce 100644
--- a/drivers/gpio/bt8xxgpio.c
+++ b/drivers/gpio/gpio-bt8xx.c
diff --git a/drivers/gpio/cs5535-gpio.c b/drivers/gpio/gpio-cs5535.c
index 6e16cba56ad..6e16cba56ad 100644
--- a/drivers/gpio/cs5535-gpio.c
+++ b/drivers/gpio/gpio-cs5535.c
diff --git a/drivers/gpio/gpio-da9052.c b/drivers/gpio/gpio-da9052.c
new file mode 100644
index 00000000000..038f5eb8b13
--- /dev/null
+++ b/drivers/gpio/gpio-da9052.c
@@ -0,0 +1,277 @@
+/*
+ * GPIO Driver for Dialog DA9052 PMICs.
+ *
+ * Copyright(c) 2011 Dialog Semiconductor Ltd.
+ *
+ * Author: David Dajun Chen <dchen@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/syscalls.h>
+#include <linux/seq_file.h>
+
+#include <linux/mfd/da9052/da9052.h>
+#include <linux/mfd/da9052/reg.h>
+#include <linux/mfd/da9052/pdata.h>
+#include <linux/mfd/da9052/gpio.h>
+
+#define DA9052_INPUT 1
+#define DA9052_OUTPUT_OPENDRAIN 2
+#define DA9052_OUTPUT_PUSHPULL 3
+
+#define DA9052_SUPPLY_VDD_IO1 0
+
+#define DA9052_DEBOUNCING_OFF 0
+#define DA9052_DEBOUNCING_ON 1
+
+#define DA9052_OUTPUT_LOWLEVEL 0
+
+#define DA9052_ACTIVE_LOW 0
+#define DA9052_ACTIVE_HIGH 1
+
+#define DA9052_GPIO_MAX_PORTS_PER_REGISTER 8
+#define DA9052_GPIO_SHIFT_COUNT(no) (no%8)
+#define DA9052_GPIO_MASK_UPPER_NIBBLE 0xF0
+#define DA9052_GPIO_MASK_LOWER_NIBBLE 0x0F
+#define DA9052_GPIO_NIBBLE_SHIFT 4
+
+struct da9052_gpio {
+ struct da9052 *da9052;
+ struct gpio_chip gp;
+};
+
+static inline struct da9052_gpio *to_da9052_gpio(struct gpio_chip *chip)
+{
+ return container_of(chip, struct da9052_gpio, gp);
+}
+
+static unsigned char da9052_gpio_port_odd(unsigned offset)
+{
+ return offset % 2;
+}
+
+static int da9052_gpio_get(struct gpio_chip *gc, unsigned offset)
+{
+ struct da9052_gpio *gpio = to_da9052_gpio(gc);
+ int da9052_port_direction = 0;
+ int ret;
+
+ ret = da9052_reg_read(gpio->da9052,
+ DA9052_GPIO_0_1_REG + (offset >> 1));
+ if (ret < 0)
+ return ret;
+
+ if (da9052_gpio_port_odd(offset)) {
+ da9052_port_direction = ret & DA9052_GPIO_ODD_PORT_PIN;
+ da9052_port_direction >>= 4;
+ } else {
+ da9052_port_direction = ret & DA9052_GPIO_EVEN_PORT_PIN;
+ }
+
+ switch (da9052_port_direction) {
+ case DA9052_INPUT:
+ if (offset < DA9052_GPIO_MAX_PORTS_PER_REGISTER)
+ ret = da9052_reg_read(gpio->da9052,
+ DA9052_STATUS_C_REG);
+ else
+ ret = da9052_reg_read(gpio->da9052,
+ DA9052_STATUS_D_REG);
+ if (ret < 0)
+ return ret;
+ if (ret & (1 << DA9052_GPIO_SHIFT_COUNT(offset)))
+ return 1;
+ else
+ return 0;
+ case DA9052_OUTPUT_PUSHPULL:
+ if (da9052_gpio_port_odd(offset))
+ return ret & DA9052_GPIO_ODD_PORT_MODE;
+ else
+ return ret & DA9052_GPIO_EVEN_PORT_MODE;
+ default:
+ return -EINVAL;
+ }
+}
+
+static void da9052_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+{
+ struct da9052_gpio *gpio = to_da9052_gpio(gc);
+ unsigned char register_value = 0;
+ int ret;
+
+ if (da9052_gpio_port_odd(offset)) {
+ if (value) {
+ register_value = DA9052_GPIO_ODD_PORT_MODE;
+ ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
+ DA9052_GPIO_0_1_REG,
+ DA9052_GPIO_ODD_PORT_MODE,
+ register_value);
+ if (ret != 0)
+ dev_err(gpio->da9052->dev,
+ "Failed to updated gpio odd reg,%d",
+ ret);
+ }
+ } else {
+ if (value) {
+ register_value = DA9052_GPIO_EVEN_PORT_MODE;
+ ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
+ DA9052_GPIO_0_1_REG,
+ DA9052_GPIO_EVEN_PORT_MODE,
+ register_value);
+ if (ret != 0)
+ dev_err(gpio->da9052->dev,
+ "Failed to updated gpio even reg,%d",
+ ret);
+ }
+ }
+}
+
+static int da9052_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
+{
+ struct da9052_gpio *gpio = to_da9052_gpio(gc);
+ unsigned char register_value;
+ int ret;
+
+ /* Format: function - 2 bits type - 1 bit mode - 1 bit */
+ register_value = DA9052_INPUT | DA9052_ACTIVE_LOW << 2 |
+ DA9052_DEBOUNCING_ON << 3;
+
+ if (da9052_gpio_port_odd(offset))
+ ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
+ DA9052_GPIO_0_1_REG,
+ DA9052_GPIO_MASK_UPPER_NIBBLE,
+ (register_value <<
+ DA9052_GPIO_NIBBLE_SHIFT));
+ else
+ ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
+ DA9052_GPIO_0_1_REG,
+ DA9052_GPIO_MASK_LOWER_NIBBLE,
+ register_value);
+
+ return ret;
+}
+
+static int da9052_gpio_direction_output(struct gpio_chip *gc,
+ unsigned offset, int value)
+{
+ struct da9052_gpio *gpio = to_da9052_gpio(gc);
+ unsigned char register_value;
+ int ret;
+
+ /* Format: Function - 2 bits Type - 1 bit Mode - 1 bit */
+ register_value = DA9052_OUTPUT_PUSHPULL | DA9052_SUPPLY_VDD_IO1 << 2 |
+ value << 3;
+
+ if (da9052_gpio_port_odd(offset))
+ ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
+ DA9052_GPIO_0_1_REG,
+ DA9052_GPIO_MASK_UPPER_NIBBLE,
+ (register_value <<
+ DA9052_GPIO_NIBBLE_SHIFT));
+ else
+ ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
+ DA9052_GPIO_0_1_REG,
+ DA9052_GPIO_MASK_LOWER_NIBBLE,
+ register_value);
+
+ return ret;
+}
+
+static int da9052_gpio_to_irq(struct gpio_chip *gc, u32 offset)
+{
+ struct da9052_gpio *gpio = to_da9052_gpio(gc);
+ struct da9052 *da9052 = gpio->da9052;
+
+ return da9052->irq_base + DA9052_IRQ_GPI0 + offset;
+}
+
+static struct gpio_chip reference_gp __devinitdata = {
+ .label = "da9052-gpio",
+ .owner = THIS_MODULE,
+ .get = da9052_gpio_get,
+ .set = da9052_gpio_set,
+ .direction_input = da9052_gpio_direction_input,
+ .direction_output = da9052_gpio_direction_output,
+ .to_irq = da9052_gpio_to_irq,
+ .can_sleep = 1;
+ .ngpio = 16;
+ .base = -1;
+};
+
+static int __devinit da9052_gpio_probe(struct platform_device *pdev)
+{
+ struct da9052_gpio *gpio;
+ struct da9052_pdata *pdata;
+ int ret;
+
+ gpio = kzalloc(sizeof(*gpio), GFP_KERNEL);
+ if (gpio == NULL)
+ return -ENOMEM;
+
+ gpio->da9052 = dev_get_drvdata(pdev->dev.parent);
+ pdata = gpio->da9052->dev->platform_data;
+
+ gpio->gp = reference_gp;
+ if (pdata && pdata->gpio_base)
+ gpio->gp.base = pdata->gpio_base;
+
+ ret = gpiochip_add(&gpio->gp);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
+ goto err_mem;
+ }
+
+ platform_set_drvdata(pdev, gpio);
+
+ return 0;
+
+err_mem:
+ kfree(gpio);
+ return ret;
+}
+
+static int __devexit da9052_gpio_remove(struct platform_device *pdev)
+{
+ struct da9052_gpio *gpio = platform_get_drvdata(pdev);
+ int ret;
+
+ ret = gpiochip_remove(&gpio->gp);
+ if (ret == 0)
+ kfree(gpio);
+
+ return ret;
+}
+
+static struct platform_driver da9052_gpio_driver = {
+ .probe = da9052_gpio_probe,
+ .remove = __devexit_p(da9052_gpio_remove),
+ .driver = {
+ .name = "da9052-gpio",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init da9052_gpio_init(void)
+{
+ return platform_driver_register(&da9052_gpio_driver);
+}
+module_init(da9052_gpio_init);
+
+static void __exit da9052_gpio_exit(void)
+{
+ return platform_driver_unregister(&da9052_gpio_driver);
+}
+module_exit(da9052_gpio_exit);
+
+MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
+MODULE_DESCRIPTION("DA9052 GPIO Device Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9052-gpio");
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
new file mode 100644
index 00000000000..3bfd3417ab1
--- /dev/null
+++ b/drivers/gpio/gpio-ep93xx.c