diff options
Diffstat (limited to 'drivers/gpio')
-rw-r--r-- | drivers/gpio/74x164.c | 2 | ||||
-rw-r--r-- | drivers/gpio/Kconfig | 24 | ||||
-rw-r--r-- | drivers/gpio/Makefile | 1 | ||||
-rw-r--r-- | drivers/gpio/ab8500-gpio.c | 522 | ||||
-rw-r--r-- | drivers/gpio/adp5588-gpio.c | 8 | ||||
-rw-r--r-- | drivers/gpio/cs5535-gpio.c | 6 | ||||
-rw-r--r-- | drivers/gpio/gpiolib.c | 45 | ||||
-rw-r--r-- | drivers/gpio/janz-ttl.c | 3 | ||||
-rw-r--r-- | drivers/gpio/langwell_gpio.c | 43 | ||||
-rw-r--r-- | drivers/gpio/max732x.c | 8 | ||||
-rw-r--r-- | drivers/gpio/mc33880.c | 4 | ||||
-rw-r--r-- | drivers/gpio/mcp23s08.c | 191 | ||||
-rw-r--r-- | drivers/gpio/ml_ioh_gpio.c | 2 | ||||
-rw-r--r-- | drivers/gpio/pca953x.c | 24 | ||||
-rw-r--r-- | drivers/gpio/pch_gpio.c | 2 | ||||
-rw-r--r-- | drivers/gpio/pl061.c | 16 | ||||
-rw-r--r-- | drivers/gpio/rdc321x-gpio.c | 3 | ||||
-rw-r--r-- | drivers/gpio/sch_gpio.c | 57 | ||||
-rw-r--r-- | drivers/gpio/stmpe-gpio.c | 12 | ||||
-rw-r--r-- | drivers/gpio/sx150x.c | 63 | ||||
-rw-r--r-- | drivers/gpio/tc3589x-gpio.c | 12 | ||||
-rw-r--r-- | drivers/gpio/timbgpio.c | 24 | ||||
-rw-r--r-- | drivers/gpio/vr41xx_giu.c | 12 |
23 files changed, 855 insertions, 229 deletions
diff --git a/drivers/gpio/74x164.c b/drivers/gpio/74x164.c index d91ff4c282e..84e07021983 100644 --- a/drivers/gpio/74x164.c +++ b/drivers/gpio/74x164.c @@ -133,7 +133,7 @@ exit_destroy: return ret; } -static int gen_74x164_remove(struct spi_device *spi) +static int __devexit gen_74x164_remove(struct spi_device *spi) { struct gen_74x164_chip *chip; int ret; diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 664660e5633..d3b29530554 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -100,18 +100,21 @@ config GPIO_VR41XX Say yes here to support the NEC VR4100 series General-purpose I/O Uint config GPIO_SCH - tristate "Intel SCH GPIO" - depends on GPIOLIB && PCI + tristate "Intel SCH/TunnelCreek GPIO" + depends on GPIOLIB && PCI && X86 select MFD_CORE select LPC_SCH help - Say yes here to support GPIO interface on Intel Poulsbo SCH. + Say yes here to support GPIO interface on Intel Poulsbo SCH + or Intel Tunnel Creek processor. The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are powered by the core power rail and are turned off during sleep modes (S3 and higher). The remaining four GPIOs are powered by the Intel SCH suspend power supply. These GPIOs remain active during S3. The suspend powered GPIOs can be used to wake the system from the Suspend-to-RAM state. + 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. @@ -321,13 +324,13 @@ config GPIO_BT8XX config GPIO_LANGWELL bool "Intel Langwell/Penwell GPIO support" - depends on PCI + depends on PCI && X86 help Say Y here to support Intel Langwell/Penwell GPIO. config GPIO_PCH tristate "PCH GPIO of Intel Topcliff" - depends on PCI + depends on PCI && X86 help This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff which is an IOH(Input/Output Hub) for x86 embedded processor. @@ -368,11 +371,11 @@ config GPIO_MAX7301 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. config GPIO_MCP23S08 - tristate "Microchip MCP23S08 I/O expander" + tristate "Microchip MCP23Sxx I/O expander" depends on SPI_MASTER help - SPI driver for Microchip MCP23S08 I/O expander. This provides - a GPIO interface supporting inputs and outputs. + SPI driver for Microchip MCP23S08/MPC23S17 I/O expanders. + This provides a GPIO interface supporting inputs and outputs. config GPIO_MC33880 tristate "Freescale MC33880 high-side/low-side switch" @@ -411,4 +414,9 @@ config GPIO_JANZ_TTL This driver provides support for driving the pins in output mode only. Input mode is not supported. +config AB8500_GPIO + bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions" + depends on AB8500_CORE && BROKEN + help + Select this to enable the AB8500 IC GPIO driver endif diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 3351cf87b0e..becef595435 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -42,3 +42,4 @@ 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 diff --git a/drivers/gpio/ab8500-gpio.c b/drivers/gpio/ab8500-gpio.c new file mode 100644 index 00000000000..e7b834d054b --- /dev/null +++ b/drivers/gpio/ab8500-gpio.c @@ -0,0 +1,522 @@ +/* + * Copyright (C) ST-Ericsson SA 2011 + * + * Author: BIBEK BASU <bibek.basu@stericsson.com> + * License terms: GNU General Public License (GPL) version 2 + * + * 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/kernel.h> +#include <linux/types.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/gpio.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/mfd/ab8500.h> +#include <linux/mfd/abx500.h> +#include <linux/mfd/ab8500/gpio.h> + +/* + * GPIO registers offset + * Bank: 0x10 + */ +#define AB8500_GPIO_SEL1_REG 0x00 +#define AB8500_GPIO_SEL2_REG 0x01 +#define AB8500_GPIO_SEL3_REG 0x02 +#define AB8500_GPIO_SEL4_REG 0x03 +#define AB8500_GPIO_SEL5_REG 0x04 +#define AB8500_GPIO_SEL6_REG 0x05 + +#define AB8500_GPIO_DIR1_REG 0x10 +#define AB8500_GPIO_DIR2_REG 0x11 +#define AB8500_GPIO_DIR3_REG 0x12 +#define AB8500_GPIO_DIR4_REG 0x13 +#define AB8500_GPIO_DIR5_REG 0x14 +#define AB8500_GPIO_DIR6_REG 0x15 + +#define AB8500_GPIO_OUT1_REG 0x20 +#define AB8500_GPIO_OUT2_REG 0x21 +#define AB8500_GPIO_OUT3_REG 0x22 +#define AB8500_GPIO_OUT4_REG 0x23 +#define AB8500_GPIO_OUT5_REG 0x24 +#define AB8500_GPIO_OUT6_REG 0x25 + +#define AB8500_GPIO_PUD1_REG 0x30 +#define AB8500_GPIO_PUD2_REG 0x31 +#define AB8500_GPIO_PUD3_REG 0x32 +#define AB8500_GPIO_PUD4_REG 0x33 +#define AB8500_GPIO_PUD5_REG 0x34 +#define AB8500_GPIO_PUD6_REG 0x35 + +#define AB8500_GPIO_IN1_REG 0x40 +#define AB8500_GPIO_IN2_REG 0x41 +#define AB8500_GPIO_IN3_REG 0x42 +#define AB8500_GPIO_IN4_REG 0x43 +#define AB8500_GPIO_IN5_REG 0x44 +#define AB8500_GPIO_IN6_REG 0x45 +#define AB8500_GPIO_ALTFUN_REG 0x45 +#define ALTFUN_REG_INDEX 6 +#define AB8500_NUM_GPIO 42 +#define AB8500_NUM_VIR_GPIO_IRQ 16 + +enum ab8500_gpio_action { + NONE, + STARTUP, + SHUTDOWN, + MASK, + UNMASK +}; + +struct ab8500_gpio { + struct gpio_chip chip; + struct ab8500 *parent; + struct device *dev; + struct mutex lock; + u32 irq_base; + enum ab8500_gpio_action irq_action; + u16 rising; + u16 falling; +}; +/** + * to_ab8500_gpio() - get the pointer to ab8500_gpio + * @chip: Member of the structure ab8500_gpio + */ +static inline struct ab8500_gpio *to_ab8500_gpio(struct gpio_chip *chip) +{ + return container_of(chip, struct ab8500_gpio, chip); +} + +static int ab8500_gpio_set_bits(struct gpio_chip *chip, u8 reg, + unsigned offset, int val) +{ + struct ab8500_gpio *ab8500_gpio = to_ab8500_gpio(chip); + u8 pos = offset % 8; + int ret; + + reg = reg + (offset / 8); + ret = abx500_mask_and_set_register_interruptible(ab8500_gpio->dev, + AB8500_MISC, reg, 1 << pos, val << pos); + if (ret < 0) + dev_err(ab8500_gpio->dev, "%s write failed\n", __func__); + return ret; +} +/** + * ab8500_gpio_get() - Get the particular GPIO value + * @chip: Gpio device + * @offset: GPIO number to read + */ +static int ab8500_gpio_get(struct gpio_chip *chip, unsigned offset) +{ + struct ab8500_gpio *ab8500_gpio = to_ab8500_gpio(chip); + u8 mask = 1 << (offset % 8); + u8 reg = AB8500_GPIO_OUT1_REG + (offset / 8); + int ret; + u8 data; + ret = abx500_get_register_interruptible(ab8500_gpio->dev, AB8500_MISC, + reg, &data); + if (ret < 0) { + dev_err(ab8500_gpio->dev, "%s read failed\n", __func__); + return ret; + } + return (data & mask) >> (offset % 8); +} + +static void ab8500_gpio_set(struct gpio_chip *chip, unsigned offset, int val) +{ + struct ab8500_gpio *ab8500_gpio = to_ab8500_gpio(chip); + int ret; + /* Write the data */ + ret = ab8500_gpio_set_bits(chip, AB8500_GPIO_OUT1_REG, offset, 1); + if (ret < 0) + dev_err(ab8500_gpio->dev, "%s write failed\n", __func__); +} + +static int ab8500_gpio_direction_output(struct gpio_chip *chip, unsigned offset, + int val) +{ + int ret; + /* set direction as output */ + ret = ab8500_gpio_set_bits(chip, AB8500_GPIO_DIR1_REG, offset, 1); + if (ret < 0) + return ret; + /* disable pull down */ + ret = ab8500_gpio_set_bits(chip, AB8500_GPIO_PUD1_REG, offset, 1); + if (ret < 0) + return ret; + /* set the output as 1 or 0 */ + return ab8500_gpio_set_bits(chip, AB8500_GPIO_OUT1_REG, offset, val); + +} + +static int ab8500_gpio_direction_input(struct gpio_chip *chip, unsigned offset) +{ + /* set the register as input */ + return ab8500_gpio_set_bits(chip, AB8500_GPIO_DIR1_REG, offset, 0); +} + +static int ab8500_gpio_to_irq(struct gpio_chip *chip, unsigned offset) +{ + /* + * Only some GPIOs are interrupt capable, and they are + * organized in discontiguous clusters: + * + * GPIO6 to GPIO13 + * GPIO24 and GPIO25 + * GPIO36 to GPIO41 + */ + static struct ab8500_gpio_irq_cluster { + int start; + int end; + } clusters[] = { + {.start = 6, .end = 13}, + {.start = 24, .end = 25}, + {.start = 36, .end = 41}, + }; + struct ab8500_gpio *ab8500_gpio = to_ab8500_gpio(chip); + int base = ab8500_gpio->irq_base; + int i; + + for (i = 0; i < ARRAY_SIZE(clusters); i++) { + struct ab8500_gpio_irq_cluster *cluster = &clusters[i]; + + if (offset >= cluster->start && offset <= cluster->end) + return base + offset - cluster->start; + + /* Advance by the number of gpios in this cluster */ + base += cluster->end - cluster->start + 1; + } + + return -EINVAL; +} + +static struct gpio_chip ab8500gpio_chip = { + .label = "ab8500_gpio", + .owner = THIS_MODULE, + .direction_input = ab8500_gpio_direction_input, + .get = ab8500_gpio_get, + .direction_output = ab8500_gpio_direction_output, + .set = ab8500_gpio_set, + .to_irq = ab8500_gpio_to_irq, +}; + +static unsigned int irq_to_rising(unsigned int irq) +{ + struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq); + int offset = irq - ab8500_gpio->irq_base; + int new_irq = offset + AB8500_INT_GPIO6R + + ab8500_gpio->parent->irq_base; + return new_irq; +} + +static unsigned int irq_to_falling(unsigned int irq) +{ + struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq); + int offset = irq - ab8500_gpio->irq_base; + int new_irq = offset + AB8500_INT_GPIO6F + + ab8500_gpio->parent->irq_base; + return new_irq; + +} + +static unsigned int rising_to_irq(unsigned int irq, void *dev) +{ + struct ab8500_gpio *ab8500_gpio = dev; + int offset = irq - AB8500_INT_GPIO6R + - ab8500_gpio->parent->irq_base ; + int new_irq = offset + ab8500_gpio->irq_base; + return new_irq; +} + +static unsigned int falling_to_irq(unsigned int irq, void *dev) +{ + struct ab8500_gpio *ab8500_gpio = dev; + int offset = irq - AB8500_INT_GPIO6F + - ab8500_gpio->parent->irq_base ; + int new_irq = offset + ab8500_gpio->irq_base; + return new_irq; + +} + +/* + * IRQ handler + */ + +static irqreturn_t handle_rising(int irq, void *dev) +{ + + handle_nested_irq(rising_to_irq(irq , dev)); + return IRQ_HANDLED; +} + +static irqreturn_t handle_falling(int irq, void *dev) +{ + + handle_nested_irq(falling_to_irq(irq, dev)); + return IRQ_HANDLED; +} + +static void ab8500_gpio_irq_lock(unsigned int irq) +{ + struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq); + mutex_lock(&ab8500_gpio->lock); +} + +static void ab8500_gpio_irq_sync_unlock(unsigned int irq) +{ + struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq); + int offset = irq - ab8500_gpio->irq_base; + bool rising = ab8500_gpio->rising & BIT(offset); + bool falling = ab8500_gpio->falling & BIT(offset); + int ret; + + switch (ab8500_gpio->irq_action) { + case STARTUP: + if (rising) + ret = request_threaded_irq(irq_to_rising(irq), + NULL, handle_rising, + IRQF_TRIGGER_RISING, + "ab8500-gpio-r", ab8500_gpio); + if (falling) + ret = request_threaded_irq(irq_to_falling(irq), + NULL, handle_falling, + IRQF_TRIGGER_FALLING, + "ab8500-gpio-f", ab8500_gpio); + break; + case SHUTDOWN: + if (rising) + free_irq(irq_to_rising(irq), ab8500_gpio); + if (falling) + free_irq(irq_to_falling(irq), ab8500_gpio); + break; + case MASK: + if (rising) + disable_irq(irq_to_rising(irq)); + if (falling) + disable_irq(irq_to_falling(irq)); + break; + case UNMASK: + if (rising) + enable_irq(irq_to_rising(irq)); + if (falling) + enable_irq(irq_to_falling(irq)); + break; + case NONE: + break; + } + ab8500_gpio->irq_action = NONE; + ab8500_gpio->rising &= ~(BIT(offset)); + ab8500_gpio->falling &= ~(BIT(offset)); + mutex_unlock(&ab8500_gpio->lock); +} + + +static void ab8500_gpio_irq_mask(unsigned int irq) +{ + struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq); + ab8500_gpio->irq_action = MASK; +} + +static void ab8500_gpio_irq_unmask(unsigned int irq) +{ + struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq); + ab8500_gpio->irq_action = UNMASK; +} + +static int ab8500_gpio_irq_set_type(unsigned int irq, unsigned int type) +{ + struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq); + int offset = irq - ab8500_gpio->irq_base; + + if (type == IRQ_TYPE_EDGE_BOTH) { + ab8500_gpio->rising = BIT(offset); + ab8500_gpio->falling = BIT(offset); + } else if (type == IRQ_TYPE_EDGE_RISING) { + ab8500_gpio->rising = BIT(offset); + } else { + ab8500_gpio->falling = BIT(offset); + } + return 0; +} + +unsigned int ab8500_gpio_irq_startup(unsigned int irq) +{ + struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq); + ab8500_gpio->irq_action = STARTUP; + return 0; +} + +void ab8500_gpio_irq_shutdown(unsigned int irq) +{ + struct ab8500_gpio *ab8500_gpio = get_irq_chip_data(irq); + ab8500_gpio->irq_action = SHUTDOWN; +} + +static struct irq_chip ab8500_gpio_irq_chip = { + .name = "ab8500-gpio", + .startup = ab8500_gpio_irq_startup, + .shutdown = ab8500_gpio_irq_shutdown, + .bus_lock = ab8500_gpio_irq_lock, + .bus_sync_unlock = ab8500_gpio_irq_sync_unlock, + .mask = ab8500_gpio_irq_mask, + .unmask = ab8500_gpio_irq_unmask, + .set_type = ab8500_gpio_irq_set_type, +}; + +static int ab8500_gpio_irq_init(struct ab8500_gpio *ab8500_gpio) +{ + u32 base = ab8500_gpio->irq_base; + int irq; + + for (irq = base; irq < base + AB8500_NUM_VIR_GPIO_IRQ ; irq++) { + set_irq_chip_data(irq, ab8500_gpio); + set_irq_chip_and_handler(irq, &ab8500_gpio_irq_chip, + handle_simple_irq); + set_irq_nested_thread(irq, 1); +#ifdef CONFIG_ARM + set_irq_flags(irq, IRQF_VALID); +#else + set_irq_noprobe(irq); +#endif + } + + return 0; +} + +static void ab8500_gpio_irq_remove(struct ab8500_gpio *ab8500_gpio) +{ + int base = ab8500_gpio->irq_base; + int irq; + + for (irq = base; irq < base + AB8500_NUM_VIR_GPIO_IRQ; irq++) { +#ifdef CONFIG_ARM + set_irq_flags(irq, 0); +#endif + set_irq_chip_and_handler(irq, NULL, NULL); + set_irq_chip_data(irq, NULL); + } +} + +static int __devinit ab8500_gpio_probe(struct platform_device *pdev) +{ + struct ab8500_platform_data *ab8500_pdata = + dev_get_platdata(pdev->dev.parent); + struct ab8500_gpio_platform_data *pdata; + struct ab8500_gpio *ab8500_gpio; + int ret; + int i; + + pdata = ab8500_pdata->gpio; + if (!pdata) { + dev_err(&pdev->dev, "gpio platform data missing\n"); + return -ENODEV; + } + + ab8500_gpio = kzalloc(sizeof(struct ab8500_gpio), GFP_KERNEL); + if (ab8500_gpio == NULL) { + dev_err(&pdev->dev, "failed to allocate memory\n"); + return -ENOMEM; + } + ab8500_gpio->dev = &pdev->dev; + ab8500_gpio->parent = dev_get_drvdata(pdev->dev.parent); + ab8500_gpio->chip = ab8500gpio_chip; + ab8500_gpio->chip.ngpio = AB8500_NUM_GPIO; + ab8500_gpio->chip.dev = &pdev->dev; + ab8500_gpio->chip.base = pdata->gpio_base; + ab8500_gpio->irq_base = pdata->irq_base; + /* initialize the lock */ + mutex_init(&ab8500_gpio->lock); + /* + * AB8500 core will handle and clear the IRQ + * configre GPIO based on config-reg value. + * These values are for selecting the PINs as + * GPIO or alternate function + */ + for (i = AB8500_GPIO_SEL1_REG; i <= AB8500_GPIO_SEL6_REG; i++) { + ret = abx500_set_register_interruptible(ab8500_gpio->dev, + AB8500_MISC, i, + pdata->config_reg[i]); + if (ret < 0) + goto out_free; + } + ret = abx500_set_register_interruptible(ab8500_gpio->dev, AB8500_MISC, + AB8500_GPIO_ALTFUN_REG, + pdata->config_reg[ALTFUN_REG_INDEX]); + if (ret < 0) + goto out_free; + + ret = ab8500_gpio_irq_init(ab8500_gpio); + if (ret) + goto out_free; + ret = gpiochip_add(&ab8500_gpio->chip); + if (ret) { + dev_err(&pdev->dev, "unable to add gpiochip: %d\n", + ret); + goto out_rem_irq; + } + platform_set_drvdata(pdev, ab8500_gpio); + return 0; + +out_rem_irq: + ab8500_gpio_irq_remove(ab8500_gpio); +out_free: + mutex_destroy(&ab8500_gpio->lock); + kfree(ab8500_gpio); + return ret; +} + +/* + * ab8500_gpio_remove() - remove Ab8500-gpio driver + * @pdev : Platform device registered + */ +static int __devexit ab8500_gpio_remove(struct platform_device *pdev) +{ + struct ab8500_gpio *ab8500_gpio = platform_get_drvdata(pdev); + int ret; + + ret = gpiochip_remove(&ab8500_gpio->chip); + if (ret < 0) { + dev_err(ab8500_gpio->dev, "unable to remove gpiochip:\ + %d\n", ret); + return ret; + } + + platform_set_drvdata(pdev, NULL); + mutex_destroy(&ab8500_gpio->lock); + kfree(ab8500_gpio); + + return 0; +} + +static struct platform_driver ab8500_gpio_driver = { + .driver = { + .name = "ab8500-gpio", + .owner = THIS_MODULE, + }, + .probe = ab8500_gpio_probe, + .remove = __devexit_p(ab8500_gpio_remove), +}; + +static int __init ab8500_gpio_init(void) +{ + return platform_driver_register(&ab8500_gpio_driver); +} +arch_initcall(ab8500_gpio_init); + +static void __exit ab8500_gpio_exit(void) +{ + platform_driver_unregister(&ab8500_gpio_driver); +} +module_exit(ab8500_gpio_exit); + +MODULE_AUTHOR("BIBEK BASU <bibek.basu@stericsson.com>"); +MODULE_DESCRIPTION("Driver allows to use AB8500 unused pins\ + to be used as GPIO"); +MODULE_ALIAS("AB8500 GPIO driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpio/adp5588-gpio.c b/drivers/gpio/adp5588-gpio.c index 33fc685cb38..3525ad91877 100644 --- a/drivers/gpio/adp5588-gpio.c +++ b/drivers/gpio/adp5588-gpio.c @@ -289,10 +289,10 @@ static int adp5588_irq_setup(struct adp5588_gpio *dev) for (gpio = 0; gpio < dev->gpio_chip.ngpio; gpio++) { int irq = gpio + dev->irq_base; - set_irq_chip_data(irq, dev); - set_irq_chip_and_handler(irq, &adp5588_irq_chip, + irq_set_chip_data(irq, dev); + irq_set_chip_and_handler(irq, &adp5588_irq_chip, handle_level_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM /* * ARM needs us to explicitly flag the IRQ as VALID, @@ -300,7 +300,7 @@ static int adp5588_irq_setup(struct adp5588_gpio *dev) */ set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } diff --git a/drivers/gpio/cs5535-gpio.c b/drivers/gpio/cs5535-gpio.c index 0d05ea7d499..6e16cba56ad 100644 --- a/drivers/gpio/cs5535-gpio.c +++ b/drivers/gpio/cs5535-gpio.c @@ -373,7 +373,7 @@ static int __devexit cs5535_gpio_remove(struct platform_device *pdev) return 0; } -static struct platform_driver cs5535_gpio_drv = { +static struct platform_driver cs5535_gpio_driver = { .driver = { .name = DRV_NAME, .owner = THIS_MODULE, @@ -384,12 +384,12 @@ static struct platform_driver cs5535_gpio_drv = { static int __init cs5535_gpio_init(void) { - return platform_driver_register(&cs5535_gpio_drv); + return platform_driver_register(&cs5535_gpio_driver); } static void __exit cs5535_gpio_exit(void) { - platform_driver_unregister(&cs5535_gpio_drv); + platform_driver_unregister(&cs5535_gpio_driver); } module_init(cs5535_gpio_init); diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 649550e2cae..36a2974815b 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1656,51 +1656,6 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip) chip->get ? (chip->get(chip, i) ? "hi" : "lo") : "? "); - - if (!is_out) { - int irq = gpio_to_irq(gpio); - struct irq_desc *desc = irq_to_desc(irq); - - /* This races with request_irq(), set_irq_type(), - * and set_irq_wake() ... but those are "rare". - * - * More significantly, trigger type flags aren't - * currently maintained by genirq. - */ - if (irq >= 0 && desc->action) { - char *trigger; - - switch (desc->status & IRQ_TYPE_SENSE_MASK) { - case IRQ_TYPE_NONE: - trigger = "(default)"; - break; - case IRQ_TYPE_EDGE_FALLING: - trigger = "edge-falling"; - break; - case IRQ_TYPE_EDGE_RISING: - trigger = "edge-rising"; - break; - case IRQ_TYPE_EDGE_BOTH: - trigger = "edge-both"; - break; - case IRQ_TYPE_LEVEL_HIGH: - trigger = "level-high"; - break; - case IRQ_TYPE_LEVEL_LOW: - trigger = "level-low"; - break; - default: - trigger = "?trigger?"; - break; - } - - seq_printf(s, " irq-%d %s%s", - irq, trigger, - (desc->status & IRQ_WAKEUP) - ? " wakeup" : ""); - } - } - seq_printf(s, "\n"); } } diff --git a/drivers/gpio/janz-ttl.c b/drivers/gpio/janz-ttl.c index 813ac077e5d..2514fb075f4 100644 --- a/drivers/gpio/janz-ttl.c +++ b/drivers/gpio/janz-ttl.c @@ -15,6 +15,7 @@ #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/platform_device.h> +#include <linux/mfd/core.h> #include <linux/io.h> #include <linux/gpio.h> #include <linux/slab.h> @@ -149,7 +150,7 @@ static int __devinit ttl_probe(struct platform_device *pdev) struct resource *res; int ret; - pdata = pdev->dev.platform_data; + pdata = mfd_get_data(pdev); if (!pdata) { dev_err(dev, "no platform data\n"); ret = -ENXIO; diff --git a/drivers/gpio/langwell_gpio.c b/drivers/gpio/langwell_gpio.c index 54d70a47afc..560ab648cf1 100644 --- a/drivers/gpio/langwell_gpio.c +++ b/drivers/gpio/langwell_gpio.c @@ -187,31 +187,28 @@ MODULE_DEVICE_TABLE(pci, lnw_gpio_ids); static void lnw_irq_handler(unsigned irq, struct irq_desc *desc) { - struct lnw_gpio *lnw = get_irq_data(irq); - u32 base, gpio; + struct irq_data *data = irq_desc_get_irq_data(desc); + struct lnw_gpio *lnw = irq_data_get_irq_handler_data(data); + struct irq_chip *chip = irq_data_get_irq_chip(data); + u32 base, gpio, mask; + unsigned long pending; void __iomem *gedr; - u32 gedr_v; /* check GPIO controller to check which pin triggered the interrupt */ for (base = 0; base < lnw->chip.ngpio; base += 32) { gedr = gpio_reg(&lnw->chip, base, GEDR); - gedr_v = readl(gedr); - if (!gedr_v) - continue; - for (gpio = base; gpio < base + 32; gpio++) - if (gedr_v & BIT(gpio % 32)) { - pr_debug("pin %d triggered\n", gpio); - generic_handle_irq(lnw->irq_base + gpio); - } - /* clear the edge detect status bit */ - writel(gedr_v, gedr); + pending = readl(gedr); + while (pending) { + gpio = __ffs(pending) - 1; + mask = BIT(gpio); + pending &= ~mask; + /* Clear before handling so we can't lose an edge */ + writel(mask, gedr); + generic_handle_irq(lnw->irq_base + base + gpio); + } } - if (desc->chip->irq_eoi) - desc->chip->irq_eoi(irq_get_irq_data(irq)); - else - dev_warn(lnw->chip.dev, "missing EOI handler for irq %d\n", irq); - + chip->irq_eoi(data); } static int __devinit lnw_gpio_probe(struct pci_dev *pdev, @@ -279,12 +276,12 @@ static int __devinit lnw_gpio_probe(struct pci_dev *pdev, dev_err(&pdev->dev, "langwell gpiochip_add error %d\n", retval); goto err5; } - set_irq_data(pdev->irq, lnw); - set_irq_chained_handler(pdev->irq, lnw_irq_handler); + irq_set_handler_data(pdev->irq, lnw); + irq_set_chained_handler(pdev->irq, lnw_irq_handler); for (i = 0; i < lnw->chip.ngpio; i++) { - set_irq_chip_and_handler_name(i + lnw->irq_base, &lnw_irqchip, - handle_simple_irq, "demux"); - set_irq_chip_data(i + lnw->irq_base, lnw); + irq_set_chip_and_handler_name(i + lnw->irq_base, &lnw_irqchip, + handle_simple_irq, "demux"); + irq_set_chip_data(i + lnw->irq_base, lnw); } spin_lock_init(&lnw->lock); diff --git a/drivers/gpio/max732x.c b/drivers/gpio/max732x.c index 9e1d01f0071..ad6951edc16 100644 --- a/drivers/gpio/max732x.c +++ b/drivers/gpio/max732x.c @@ -470,14 +470,14 @@ static int max732x_irq_setup(struct max732x_chip *chip, if (!(chip->dir_input & (1 << lvl))) continue; - set_irq_chip_data(irq, chip); - set_irq_chip_and_handler(irq, &max732x_irq_chip, + irq_set_chip_data(irq, chip); + irq_set_chip_and_handler(irq, &max732x_irq_chip, handle_edge_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } diff --git a/drivers/gpio/mc33880.c b/drivers/gpio/mc33880.c index 935479da670..4ec797593bd 100644 --- a/drivers/gpio/mc33880.c +++ b/drivers/gpio/mc33880.c @@ -45,7 +45,7 @@ * To save time we cache them here in memory */ struct mc33880 { - struct mutex lock; /* protect from simultanous accesses */ + struct mutex lock; /* protect from simultaneous accesses */ u8 port_config; struct gpio_chip chip; struct spi_device *spi; @@ -146,7 +146,7 @@ exit_destroy: return ret; } -static int mc33880_remove(struct spi_device *spi) +static int __devexit mc33880_remove(struct spi_device *spi) { struct mc33880 *mc; int ret; diff --git a/drivers/gpio/mcp23s08.c b/drivers/gpio/mcp23s08.c index 69f6f1955a3..40e076083ec 100644 --- a/drivers/gpio/mcp23s08.c +++ b/drivers/gpio/mcp23s08.c @@ -10,7 +10,13 @@ #include <linux/spi/spi.h> #include <linux/spi/mcp23s08.h> #include <linux/slab.h> +#include <asm/byteorder.h> +/** + * MCP types supported by driver + */ +#define MCP_TYPE_S08 0 +#define MCP_TYPE_S17 1 /* Registers are all 8 bits wide. * @@ -35,27 +41,38 @@ #define MCP_GPIO 0x09 #define MCP_OLAT 0x0a +struct mcp23s08; + +struct mcp23s08_ops { + int (*read)(struct mcp23s08 *mcp, unsigned reg); + int (*write)(struct mcp23s08 *mcp, unsigned reg, unsigned val); + int (*read_regs)(struct mcp23s08 *mcp, unsigned reg, + u16 *vals, unsigned n); +}; + struct mcp23s08 { struct spi_device *spi; u8 addr; - u8 cache[11]; + u16 cache[11]; /* lock protects the cached values */ struct mutex lock; struct gpio_chip chip; struct work_struct work; + + const struct mcp23s08_ops *ops; }; -/* A given spi_device can represent up to four mcp23s08 chips +/* A given spi_device can represent up to eight mcp23sxx chips * sharing the same chipselect but using different addresses * (e.g. chips #0 and #3 might be populated, but not #1 or $2). * Driver data holds all the per-chip data. */ struct mcp23s08_driver_data { unsigned ngpio; - struct mcp23s08 *mcp[4]; + struct mcp23s08 *mcp[8]; struct mcp23s08 chip[]; }; @@ -70,7 +87,7 @@ static int mcp23s08_read(struct mcp23s08 *mcp, unsigned reg) return (status < 0) ? status : rx[0]; } -static int mcp23s08_write(struct mcp23s08 *mcp, unsigned reg, u8 val) +static int mcp23s08_write(struct mcp23s08 *mcp, unsigned reg, unsigned val) { u8 tx[3]; @@ -81,17 +98,81 @@ static int mcp23s08_write(struct mcp23s08 *mcp, unsigned reg, u8 val) } static int -mcp23s08_read_regs(struct mcp23s08 *mcp, unsigned reg, u8 *vals, unsigned n) +mcp23s08_read_regs(struct mcp23s08 *mcp, unsigned reg, u16 *vals, unsigned n) { - u8 tx[2]; + u8 tx[2], *tmp; + int status; if ((n + reg) > sizeof mcp->cache) return -EINVAL; tx[0] = mcp->addr | 0x01; tx[1] = reg; - return spi_write_then_read(mcp->spi, tx, sizeof tx, vals, n); + + tmp = (u8 *)vals; + status = spi_write_then_read(mcp->spi, tx, sizeof tx, tmp, n); + if (status >= 0) { + while (n--) + vals[n] = tmp[n]; /* expand to 16bit */ + } + return status; +} + +static int mcp23s17_read(struct mcp23s08 *mcp, unsigned reg) +{ + u8 tx[2], rx[2]; + int status; + + tx[0] = mcp->addr | 0x01; + tx[1] = reg << 1; + status = spi_write_then_read(mcp->spi, tx, sizeof tx, rx, sizeof rx); + return (status < 0) ? status : (rx[0] | (rx[1] << 8)); +} + +static int mcp23s17_write(struct mcp23s08 *mcp, unsigned reg, unsigned val) +{ + u8 tx[4]; + + tx[0] = mcp->addr; + tx[1] = reg << 1; + tx[2] = val; + tx[3] = val >> 8; + return spi_write_then_read(mcp->spi, tx, sizeof tx, NULL, 0); +} + +static int +mcp23s17_read_regs(struct mcp23s08 *mcp, unsigned reg, u16 *vals, unsigned n) +{ + u8 tx[2]; + int status; + + if ((n + reg) > sizeof mcp->cache) + return -EINVAL; + tx[0] = mcp->addr | 0x01; + tx[1] = reg << 1; + + status = spi_write_then_read(mcp->spi, tx, sizeof tx, + (u8 *)vals, n * 2); + if (status >= 0) { + while (n--) + vals[n] = __le16_to_cpu((__le16)vals[n]); + } + + return status; } +static const struct mcp23s08_ops mcp23s08_ops = { + .read = mcp23s08_read, + .write = mcp23s08_write, + .read_regs = mcp23s08_read_regs, +}; + +static const struct mcp23s08_ops mcp23s17_ops = { + .read = mcp23s17_read, + .write = mcp23s17_write, + .read_regs = mcp23s17_read_regs, +}; + + /*----------------------------------------------------------------------*/ static int mcp23s08_direction_input(struct gpio_chip *chip, unsigned offset) @@ -101,7 +182,7 @@ static int mcp23s08_direction_input(struct gpio_chip *chip, unsigned offset) mutex_lock(&mcp->lock); mcp->cache[MCP_IODIR] |= (1 << offset); - status = mcp23s08_write(mcp, MCP_IODIR, mcp->cache[MCP_IODIR]); + status = mcp->ops->write(mcp, MCP_IODIR, mcp->cache[MCP_IODIR]); mutex_unlock(&mcp->lock); return status; } @@ -114,7 +195,7 @@ static int mcp23s08_get(struct gpio_chip *chip, unsigned offset) mutex_lock(&mcp->lock); /* REVISIT reading this clears any IRQ ... */ - status = mcp23s08_read(mcp, MCP_GPIO); + status = mcp->ops->read(mcp, MCP_GPIO); if (status < 0) status = 0; else { @@ -127,20 +208,20 @@ static int mcp23s08_get(struct gpio_chip *chip, unsigned offset) static int __mcp23s08_set(struct mcp23s08 *mcp, unsigned mask, int value) { - u8 olat = mcp->cache[MCP_OLAT]; + unsigned olat = mcp->cache[MCP_OLAT]; if (value) olat |= mask; else olat &= ~mask; mcp->cache[MCP_OLAT] = olat; - return mcp23s08_write(mcp, MCP_OLAT, olat); + return mcp->ops->write(mcp, MCP_OLAT, olat); } static void mcp23s08_set(struct gpio_chip *chip, unsigned offset, int value) { struct mcp23s08 *mcp = container_of(chip, struct mcp23s08, chip); - u8 mask = 1 << offset; + unsigned mask = 1 << offset; mutex_lock(&mcp->lock); __mcp23s08_set(mcp, mask, value); @@ -151,14 +232,14 @@ static int mcp23s08_direction_output(struct gpio_chip *chip, unsigned offset, int value) { struct mcp23s08 *mcp = container_of(chip, struct mcp23s08, chip); - u8 mask = 1 << offset; + unsigned mask = 1 << offset; int status; mutex_lock(&mcp->lock); status = __mcp23s08_set(mcp, mask, value); if (status == 0) { mcp->cache[MCP_IODIR] &= ~mask; - status = mcp23s08_write(mcp, MCP_IODIR, mcp->cache[MCP_IODIR]); + status = mcp->ops->write(mcp, MCP_IODIR, mcp->cache[MCP_IODIR]); } mutex_unlock(&mcp->lock); return status; @@ -184,16 +265,16 @@ static void mcp23s08_dbg_show(struct seq_file *s, struct gpio_chip *chip) mcp = container_of(chip, struct mcp23s08, chip); /* NOTE: we only handle one bank for now ... */ - bank = '0' + ((mcp->addr >> 1) & 0x3); + bank = '0' + ((mcp->addr >> 1) & 0x7); mutex_lock(&mcp->lock); - t = mcp23s08_read_regs(mcp, 0, mcp->cache, sizeof mcp->cache); + t = mcp->ops->read_regs(mcp, 0, mcp->cache, ARRAY_SIZE(mcp->cache)); if (t < 0) { seq_printf(s, " I/O ERROR %d\n", t); goto done; } - for (t = 0, mask = 1; t < 8; t++, mask <<= 1) { + for (t = 0, mask = 1; t < chip->ngpio; t++, mask <<= 1) { const char *label; label = gpiochip_is_requested(chip, t); @@ -219,28 +300,33 @@ done: /*----------------------------------------------------------------------*/ static int mcp23s08_probe_one(struct spi_device *spi, unsigned addr, - unsigned base, unsigned pullups) + unsigned type, unsigned base, unsigned pullups) { struct mcp23s08_driver_data *data = spi_get_drvdata(spi); struct mcp23s08 *mcp = data->mcp[addr]; int status; - int do_update = 0; mutex_init(&mcp->lock); mcp->spi = spi; mcp->addr = 0x40 | (addr << 1); - mcp->chip.label = "mcp23s08", - mcp->chip.direction_input = mcp23s08_direction_input; mcp->chip.get = mcp23s08_get; mcp->chip.direction_output = mcp23s08_direction_output; mcp->chip.set = mcp23s08_set; mcp->chip.dbg_show = mcp23s08_dbg_show; + if (type == MCP_TYPE_S17) { + mcp->ops = &mcp23s17_ops; + mcp->chip.ngpio = 16; + mcp->chip.label = "mcp23s17"; + } else { + mcp->ops = &mcp23s08_ops; + mcp->chip.ngpio = 8; + mcp->chip.label = "mcp23s08"; + } mcp->chip.base = base; - mcp->chip.ngpio = 8; mcp->chip.can_sleep = 1; mcp->chip.dev = &spi->dev; mcp->chip.owner = THIS_MODULE; @@ -248,45 +334,39 @@ static int mcp23s08_probe_one(struct spi_device *spi, unsigned addr, /* verify MCP_IOCON.SEQOP = 0, so sequential reads work, * and MCP_IOCON.HAEN = 1, so we work with all chips. */ - status = mcp23s08_read(mcp, MCP_IOCON); + status = mcp->ops->read(mcp, MCP_IOCON); if (status < 0) goto fail; if ((status & IOCON_SEQOP) || !(status & IOCON_HAEN)) { - status &= ~IOCON_SEQOP; - status |= IOCON_HAEN; - status = mcp23s08_write(mcp, MCP_IOCON, (u8) status); + /* mcp23s17 has IOCON twice, make sure they are in sync */ + status &= ~(IOCON_SEQOP | (IOCON_SEQOP << 8)); + status |= IOCON_HAEN | (IOCON_HAEN << 8); + status = mcp->ops->write(mcp, MCP_IOCON, status); if (status < 0) goto fail; } /* configure ~100K pullups */ - status = mcp23s08_write(mcp, MCP_GPPU, pullups); + status = mcp->ops->write(mcp, MCP_GPPU, pullups); if (status < 0) goto fail; - status = mcp23s08_read_regs(mcp, 0, mcp->cache, sizeof mcp->cache); + status = mcp->ops->read_regs(mcp, 0, mcp->cache, ARRAY_SIZE(mcp->cache)); if (status < 0) goto fail; /* disable inverter on input */ if (mcp->cache[MCP_IPOL] != 0) { mcp->cache[MCP_IPOL] = 0; - do_update = 1; + status = mcp->ops->write(mcp, MCP_IPOL, 0); + if (status < 0) + goto fail; } /* disable irqs */ if (mcp->cache[MCP_GPINTEN] != 0) { mcp->cache[MCP_GPINTEN] = 0; - do_update = 1; - } - - if (do_update) { - u8 tx[4]; - - tx[0] = mcp->addr; - tx[1] = MCP_IPOL; - memcpy(&tx[2], &mcp->cache[MCP_IPOL], sizeof(tx) - 2); - status = spi_write_then_read(mcp->spi, tx, sizeof tx, NULL, 0); + status = mcp->ops->write(mcp, MCP_GPINTEN, 0); if (status < 0) goto fail; } @@ -305,19 +385,26 @@ static int mcp23s08_probe(struct spi_device *spi) unsigned addr; unsigned chips = 0; struct mcp23s08_driver_data *data; - int status; + int status, type; unsigned base; + type = spi_get_device_id(spi)->driver_data; + pdata = spi->dev.platform_data; if (!pdata || !gpio_is_valid(pdata->base)) { dev_dbg(&spi->dev, "invalid or missing platform data\n"); return -EINVAL; } - for (addr = 0; addr < 4; addr++) { + for (addr = 0; addr < ARRAY_SIZE(pdata->chip); addr++) { if (!pdata->chip[addr].is_present) continue; chips++; + if ((type == MCP_TYPE_S08) && (addr > 3)) { + dev_err(&spi->dev, + "mcp23s08 only supports address 0..3\n"); + return -EINVAL; + } } if (!chips) return -ENODEV; @@ -329,16 +416,17 @@ static int mcp23s08_probe(struct spi_device *spi) spi_set_drvdata(spi, data); base = pdata->base; - for (addr = 0; addr < 4; addr++) { + for (addr = 0; addr < ARRAY_SIZE(pdata->chip); addr++) { if (!pdata->chip[addr].is_present) continue; chips--; data->mcp[addr] = &data->chip[chips]; - status = mcp23s08_probe_one(spi, addr, base, - pdata->chip[addr].pullups); + status = mcp23s08_probe_one(spi, addr, type, base, + pdata->chip[addr].pullups); if (status < 0) goto fail; - base += 8; + + base += (type == MCP_TYPE_S17) ? 16 : 8; } data->ngpio = base - pdata->base; @@ -358,7 +446,7 @@ static int mcp23s08_probe(struct spi_device *spi) return 0; fail: - for (addr = 0; addr < 4; addr++) { + for (addr = 0; addr < ARRAY_SIZE(data->mcp); addr++) { int tmp; if (!data->mcp[addr]) @@ -388,7 +476,7 @@ static int mcp23s08_remove(struct spi_device *spi) } } - for (addr = 0; addr < 4; addr++) { + for (addr = 0; addr < ARRAY_SIZE(data->mcp); addr++) { int tmp; if (!data->mcp[addr]) @@ -405,9 +493,17 @@ static int mcp23s08_remove(struct spi_device *spi) return status; } +static const struct spi_device_id mcp23s08_ids[] = { + { "mcp23s08", MCP_TYPE_S08 }, + { "mcp23s17", MCP_TYPE_S17 }, + { }, +}; +MODULE_DEVICE_TABLE(spi, mcp23s08_ids); + static struct spi_driver mcp23s08_driver = { .probe = mcp23s08_probe, .remove = mcp23s08_remove, + .id_table = mcp23s08_ids, .driver = { .name = "mcp23s08", .owner = THIS_MODULE, @@ -432,4 +528,3 @@ static void __exit mcp23s08_exit(void) module_exit(mcp23s08_exit); MODULE_LICENSE("GPL"); -MODULE_ALIAS("spi:mcp23s08"); diff --git a/drivers/gpio/ml_ioh_gpio.c b/drivers/gpio/ml_ioh_gpio.c index cead8e6ff34..0a775f7987c 100644 --- a/drivers/gpio/ml_ioh_gpio.c +++ b/drivers/gpio/ml_ioh_gpio.c @@ -116,6 +116,7 @@ static int ioh_gpio_direction_output(struct gpio_chip *gpio, unsigned nr, reg_val |= (1 << nr); else reg_val &= ~(1 << nr); + iowrite32(reg_val, &chip->reg->regs[chip->ch].po); mutex_unlock(&chip->lock); @@ -326,6 +327,7 @@ static DEFINE_PCI_DEVICE_TABLE(ioh_gpio_pcidev_id) = { { PCI_DEVICE(PCI_VENDOR_ID_ROHM, 0x802E) }, { 0, } }; +MODULE_DEVICE_TABLE(pci, ioh_gpio_pcidev_id); static struct pci_driver ioh_gpio_driver = { .name = "ml_ioh_gpio", diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index b473429eee7..7630ab7b9be 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c @@ -395,13 +395,13 @@ static int pca953x_irq_setup(struct pca953x_chip *chip, for (lvl = 0; lvl < chip->gpio_chip.ngpio; lvl++) { int irq = lvl + chip->irq_base; - set_irq_chip_data(irq, chip); - set_irq_chip_and_handler(irq, &pca953x_irq_chip, + irq_set_chip_data(irq, chip); + irq_set_chip_and_handler(irq, &pca953x_irq_chip, handle_edge_irq); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -462,7 +462,8 @@ pca953x_get_alt_pdata(struct i2c_client *client) { struct pca953x_platform_data *pdata; struct device_node *node; - const uint16_t *val; + const __be32 *val; + int size; node = client->dev.of_node; if (node == NULL) @@ -475,13 +476,13 @@ pca953x_get_alt_pdata(struct i2c_client *client) } pdata->gpio_base = -1; - val = of_get_property(node, "linux,gpio-base", NULL); + val = of_get_property(node, "linux,gpio-base", &size); if (val) { - if (*val < 0) - dev_warn(&client->dev, - "invalid gpio-base in device tree\n"); + if (size != sizeof(*val)) + dev_warn(&client->dev, "%s: wrong linux,gpio-base\n", + node->full_name); else - pdata->gpio_base = *val; + pdata->gpio_base = be32_to_cpup(val); } val = of_get_property(node, "polarity", NULL); @@ -557,7 +558,7 @@ static int __devinit pca953x_probe(struct i2c_client *client, ret = gpiochip_add(&chip->gpio_chip); if (ret) - goto out_failed; + goto out_failed_irq; if (pdata->setup) { ret = pdata->setup(client, chip->gpio_chip.base, @@ -569,8 +570,9 @@ static int __devinit pca953x_probe(struct i2c_client *client, i2c_set_clientdata(client, chip); return 0; -out_failed: +out_failed_irq: pca953x_irq_teardown(chip); +out_failed: kfree(chip->dyn_pdata); kfree(chip); return ret; diff --git a/drivers/gpio/pch_gpio.c b/drivers/gpio/pch_gpio.c index 0eba0a75c80..f970a5f3585 100644 --- a/drivers/gpio/pch_gpio.c +++ b/drivers/gpio/pch_gpio.c @@ -105,6 +105,7 @@ static int pch_gpio_direction_output(struct gpio_chip *gpio, unsigned nr, reg_val |= (1 << nr); else reg_val &= ~(1 << nr); + iowrite32(reg_val, &chip->reg->po); mutex_unlock(&chip->lock); @@ -286,6 +287,7 @@ static DEFINE_PCI_DEVICE_TABLE(pch_gpio_pcidev_id) = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x8803) }, { 0, } }; +MODULE_DEVICE_TABLE(pci, pch_gpio_pcidev_id); static struct pci_driver pch_gpio_driver = { .name = "pch_gpio", diff --git a/drivers/gpio/pl061.c b/drivers/gpio/pl061.c index 2975d22daff..6fcb28cdd86 100644 --- a/drivers/gpio/pl061.c +++ b/drivers/gpio/pl061.c @@ -210,7 +210,7 @@ static struct irq_chip pl061_irqchip = { static void pl061_irq_handler(unsigned irq, struct irq_desc *desc) { - struct list_head *chip_list = get_irq_data(irq); + struct list_head *chip_list = irq_get_handler_data(irq); struct list_head *ptr; struct pl061_gpio *chip; @@ -232,7 +232,7 @@ static void pl061_irq_handler(unsigned irq, struct irq_desc *desc) desc->irq_data.chip->irq_unmask(&desc->irq_data); } -static int pl061_probe(struct amba_device *dev, struct amba_id *id) +static int pl061_probe(struct amba_device *dev, const struct amba_id *id) { struct pl061_platform_data *pdata; struct pl061_gpio *chip; @@ -294,7 +294,7 @@ static int pl061_probe(struct amba_device *dev, struct amba_id *id) ret = -ENODEV; goto iounmap; } - set_irq_chained_handler(irq, pl061_irq_handler); + irq_set_chained_handler(irq, pl061_irq_handler); if (!test_and_set_bit(irq, init_irq)) { /* list initialized? */ chip_list = kmalloc(sizeof(*chip_list), GFP_KERNEL); if (chip_list == NULL) { @@ -303,9 +303,9 @@ static int pl061_probe(struct amba_device *dev, struct amba_id *id) goto iounmap; } INIT_LIST_HEAD(chip_list); - set_irq_data(irq, chip_list); + irq_set_handler_data(irq, chip_list); } else - chip_list = get_irq_data(irq); + chip_list = irq_get_handler_data(irq); list_add(&chip->list, chip_list); for (i = 0; i < PL061_GPIO_NR; i++) { @@ -315,10 +315,10 @@ static int pl061_probe(struct amba_device *dev, struct amba_id *id) else pl061_direction_input(&chip->gc, i); - set_irq_chip(i+chip->irq_base, &pl061_irqchip); - set_irq_handler(i+chip->irq_base, handle_simple_irq); + irq_set_chip_and_handler(i + chip->irq_base, &pl061_irqchip, + handle_simple_irq); set_irq_flags(i+chip->irq_base, IRQF_VALID); - set_irq_chip_data(i+chip->irq_base, chip); + irq_set_chip_data(i + chip->irq_base, chip); } return 0; diff --git a/drivers/gpio/rdc321x-gpio.c b/drivers/gpio/rdc321x-gpio.c index 897e0577e65..a9bda881935 100644 --- a/drivers/gpio/rdc321x-gpio.c +++ b/drivers/gpio/rdc321x-gpio.c @@ -27,6 +27,7 @@ #include <linux/pci.h> #include <linux/gpio.h> #include <linux/mfd/rdc321x.h> +#include <linux/mfd/core.h> #include <linux/slab.h> struct rdc321x_gpio { @@ -135,7 +136,7 @@ static int __devinit rdc321x_gpio_probe(struct platform_device *pdev) struct rdc321x_gpio *rdc321x_gpio_dev; struct rdc321x_gpio_pdata *pdata; - pdata = platform_get_drvdata(pdev); + pdata = mfd_get_data(pdev); if (!pdata) { dev_err(&pdev->dev, "no platform data supplied\n"); return -ENODEV; diff --git a/drivers/gpio/sch_gpio.c b/drivers/gpio/sch_gpio.c index 583521352c1..56060421cdf 100644 --- a/drivers/gpio/sch_gpio.c +++ b/drivers/gpio/sch_gpio.c @@ -25,6 +25,7 @@ #include <linux/errno.h> #include <linux/acpi.h> #include <linux/platform_device.h> +#include <linux/pci_ids.h> #include <linux/gpio.h> @@ -187,7 +188,11 @@ static struct gpio_chip sch_gpio_resume = { static int __devinit sch_gpio_probe(struct platform_device *pdev) { struct resource *res; - int err; + int err, id; + + id = pdev->id; + if (!id) + return -ENODEV; res = platform_get_resource(pdev, IORESOURCE_IO, 0); if (!res) @@ -198,12 +203,40 @@ static int __devinit sch_gpio_probe(struct platform_device *pdev) gpio_ba = res->start; - sch_gpio_core.base = 0; - sch_gpio_core.ngpio = 10; - sch_gpio_core.dev = &pdev->dev; + switch (id) { + case PCI_DEVICE_ID_INTEL_SCH_LPC: + sch_gpio_core.base = 0; + sch_gpio_core.ngpio = 10; + + sch_gpio_resume.base = 10; + sch_gpio_resume.ngpio = 4; + + /* + * GPIO[6:0] enabled by default + * GPIO7 is configured by the CMC as SLPIOVR + * Enable GPIO[9:8] core powered gpios explicitly + */ + outb(0x3, gpio_ba + CGEN + 1); + /* + * SUS_GPIO[2:0] enabled by default + * Enable SUS_GPIO3 resume powered gpio explicitly + */ + outb(0x8, gpio_ba + RGEN); + break; + + case PCI_DEVICE_ID_INTEL_ITC_LPC: + sch_gpio_core.base = 0; + sch_gpio_core.ngpio = 5; + + sch_gpio_resume.base = 5; + sch_gpio_resume.ngpio = 9; + break; + + default: + return -ENODEV; + } - sch_gpio_resume.base = 10; - sch_gpio_resume.ngpio = 4; + sch_gpio_core.dev = &pdev->dev; sch_gpio_resume.dev = &pdev->dev; err = gpiochip_add(&sch_gpio_core); @@ -214,18 +247,6 @@ static int __devinit sch_gpio_probe(struct platform_device *pdev) if (err < 0) goto err_sch_gpio_resume; - /* - * GPIO[6:0] enabled by default - * GPIO7 is configured by the CMC as SLPIOVR - * Enable GPIO[9:8] core powered gpios explicitly - */ - outb(0x3, gpio_ba + CGEN + 1); - /* - * SUS_GPIO[2:0] enabled by default - * Enable SUS_GPIO3 resume powered gpio explicitly - */ - outb(0x8, gpio_ba + RGEN); - return 0; err_sch_gpio_resume: diff --git a/drivers/gpio/stmpe-gpio.c b/drivers/gpio/stmpe-gpio.c index eb2901f8ab5..4c980b57332 100644 --- a/drivers/gpio/stmpe-gpio.c +++ b/drivers/gpio/stmpe-gpio.c @@ -254,14 +254,14 @@ static int __devinit stmpe_gpio_irq_init(struct stmpe_gpio *stmpe_gpio) int irq; for (irq = base; irq < base + stmpe_gpio->chip.ngpio; irq++) { - set_irq_chip_data(irq, stmpe_gpio); - set_irq_chip_and_handler(irq, &stmpe_gpio_irq_chip, + irq_set_chip_data(irq, stmpe_gpio); + irq_set_chip_and_handler(irq, &stmpe_gpio_irq_chip, handle_simple_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -277,8 +277,8 @@ static void stmpe_gpio_irq_remove(struct stmpe_gpio *stmpe_gpio) #ifdef CONFIG_ARM set_irq_flags(irq, 0); #endif - set_irq_chip_and_handler(irq, NULL, NULL); - set_irq_chip_data(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); + irq_set_chip_data(irq, NULL); } } diff --git a/drivers/gpio/sx150x.c b/drivers/gpio/sx150x.c index e60be0015c9..a4f73534394 100644 --- a/drivers/gpio/sx150x.c +++ b/drivers/gpio/sx150x.c @@ -25,6 +25,8 @@ #include <linux/workqueue.h> #include <linux/i2c/sx150x.h> +#define NO_UPDATE_PENDING -1 + struct sx150x_device_data { u8 reg_pullup; u8 reg_pulldn; @@ -47,8 +49,11 @@ struct sx150x_chip { const struct sx150x_device_data *dev_cfg; int irq_summary; int irq_base; + int irq_update; u32 irq_sense; - unsigned long irq_set_type_pending; + u32 irq_masked; + u32 dev_sense; + u32 dev_masked; struct irq_chip irq_chip; struct mutex lock; }; @@ -312,9 +317,8 @@ static void sx150x_irq_mask(struct irq_data *d) chip = container_of(ic, struct sx150x_chip, irq_chip); n = d->irq - chip->irq_base; - - sx150x_write_cfg(chip, n, 1, chip->dev_cfg->reg_irq_mask, 1); - sx150x_write_cfg(chip, n, 2, chip->dev_cfg->reg_sense, 0); + chip->irq_masked |= (1 << n); + chip->irq_update = n; } static void sx150x_irq_unmask(struct irq_data *d) @@ -326,9 +330,8 @@ static void sx150x_irq_unmask(struct irq_data *d) chip = container_of(ic, struct sx150x_chip, irq_chip); n = d->irq - chip->irq_base; - sx150x_write_cfg(chip, n, 1, chip->dev_cfg->reg_irq_mask, 0); - sx150x_write_cfg(chip, n, 2, chip->dev_cfg->reg_sense, - chip->irq_sense >> (n * 2)); + chip->irq_masked &= ~(1 << n); + chip->irq_update = n; } static int sx150x_irq_set_type(struct irq_data *d, unsigned int flow_type) @@ -350,7 +353,7 @@ static int sx150x_irq_set_type(struct irq_data *d, unsigned int flow_type) chip->irq_sense &= ~(3UL << (n * 2)); chip->irq_sense |= val << (n * 2); - chip->irq_set_type_pending |= BIT(n); + chip->irq_update = n; return 0; } @@ -404,15 +407,29 @@ static void sx150x_irq_bus_sync_unlock(struct irq_data *d) chip = container_of(ic, struct sx150x_chip, irq_chip); - while (chip->irq_set_type_pending) { - n = __ffs(chip->irq_set_type_pending); - chip->irq_set_type_pending &= ~BIT(n); - if (!(irq_to_desc(n + chip->irq_base)->status & IRQ_MASKED)) - sx150x_write_cfg(chip, n, 2, - chip->dev_cfg->reg_sense, - chip->irq_sense >> (n * 2)); - } + if (chip->irq_update == NO_UPDATE_PENDING) + goto out; + + n = chip->irq_update; + chip->irq_update = NO_UPDATE_PENDING; + /* Avoid updates if nothing changed */ + if (chip->dev_sense == chip->irq_sense && + chip->dev_sense == chip->irq_masked) + goto out; + + chip->dev_sense = chip->irq_sense; + chip->dev_masked = chip->irq_masked; + + if (chip->irq_masked & (1 << n)) { + sx150x_write_cfg(chip, n, 1, chip->dev_cfg->reg_irq_mask, 1); + sx150x_write_cfg(chip, n, 2, chip->dev_cfg->reg_sense, 0); + } else { + sx150x_write_cfg(chip, n, 1, chip->dev_cfg->reg_irq_mask, 0); + sx150x_write_cfg(chip, n, 2, chip->dev_cfg->reg_sense, + chip->irq_sense >> (n * 2)); + } +out: mutex_unlock(&chip->lock); } @@ -445,8 +462,11 @@ static void sx150x_init_chip(struct sx150x_chip *chip, chip->irq_chip.irq_bus_sync_unlock = sx150x_irq_bus_sync_unlock; chip->irq_summary = -1; chip->irq_base = -1; + chip->irq_masked = ~0; chip->irq_sense = 0; - chip->irq_set_type_pending = 0; + chip->dev_masked = ~0; + chip->dev_sense = 0; + chip->irq_update = NO_UPDATE_PENDING; } static int sx150x_init_io(struct sx150x_chip *chip, u8 base, u16 cfg) @@ -531,12 +551,12 @@ static int sx150x_install_irq_chip(struct sx150x_chip *chip, for (n = 0; n < chip->dev_cfg->ngpios; ++n) { irq = irq_base + n; - set_irq_chip_and_handler(irq, &chip->irq_chip, handle_edge_irq); - set_irq_nested_thread(irq, 1); + irq_set_chip_and_handler(irq, &chip->irq_chip, handle_edge_irq); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -563,8 +583,7 @@ static void sx150x_remove_irq_chip(struct sx150x_chip *chip) for (n = 0; n < chip->dev_cfg->ngpios; ++n) { irq = chip->irq_base + n; - set_irq_handler(irq, NULL); - set_irq_chip(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); } } diff --git a/drivers/gpio/tc3589x-gpio.c b/drivers/gpio/tc3589x-gpio.c index 27200af1a59..2a82e8999a4 100644 --- a/drivers/gpio/tc3589x-gpio.c +++ b/drivers/gpio/tc3589x-gpio.c @@ -239,14 +239,14 @@ static int tc3589x_gpio_irq_init(struct tc3589x_gpio *tc3589x_gpio) int irq; for (irq = base; irq < base + tc3589x_gpio->chip.ngpio; irq++) { - set_irq_chip_data(irq, tc3589x_gpio); - set_irq_chip_and_handler(irq, &tc3589x_gpio_irq_chip, + irq_set_chip_data(irq, tc3589x_gpio); + irq_set_chip_and_handler(irq, &tc3589x_gpio_irq_chip, handle_simple_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -262,8 +262,8 @@ static void tc3589x_gpio_irq_remove(struct tc3589x_gpio *tc3589x_gpio) #ifdef CONFIG_ARM set_irq_flags(irq, 0); #endif - set_irq_chip_and_handler(irq, NULL, NULL); - set_irq_chip_data(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); + irq_set_chip_data(irq, NULL); } } diff --git a/drivers/gpio/timbgpio.c b/drivers/gpio/timbgpio.c index 58c8f30352d..edbe1eae531 100644 --- a/drivers/gpio/timbgpio.c +++ b/drivers/gpio/timbgpio.c @@ -23,6 +23,7 @@ #include <linux/module.h> #include <linux/gpio.h> #include <linux/platform_device.h> +#include <linux/mfd/core.h> #include <linux/irq.h> #include <linux/io.h> #include <linux/timb_gpio.h> @@ -195,7 +196,7 @@ out: static void timbgpio_irq(unsigned int irq, struct irq_desc *desc) { - struct timbgpio *tgpio = get_irq_data(irq); + struct timbgpio *tgpio = irq_get_handler_data(irq); unsigned long ipr; int offset; @@ -228,7 +229,7 @@ static int __devinit timbgpio_probe(struct platform_device *pdev) struct gpio_chip *gc; struct timbgpio *tgpio; struct resource *iomem; - struct timbgpio_platform_data *pdata = pdev->dev.platform_data; + struct timbgpio_platform_data *pdata = mfd_get_data(pdev); int irq = platform_get_irq(pdev, 0); if (!pdata || pdata->nr_pins > 32) { @@ -291,16 +292,16 @@ static int __devinit timbgpio_probe(struct platform_device *pdev) return 0; for (i = 0; i < pdata->nr_pins; i++) { - set_irq_chip_and_handler_name(tgpio->irq_base + i, + irq_set_chip_and_handler_name(tgpio->irq_base + i, &timbgpio_irqchip, handle_simple_irq, "mux"); - set_irq_chip_data(tgpio->irq_base + i, tgpio); + irq_set_chip_data(tgpio->irq_base + i, tgpio); #ifdef CONFIG_ARM set_irq_flags(tgpio->irq_base + i, IRQF_VALID | IRQF_PROBE); #endif } - set_irq_data(irq, tgpio); - set_irq_chained_handler(irq, timbgpio_irq); + irq_set_handler_data(irq, tgpio); + irq_set_chained_handler(irq, timbgpio_irq); return 0; @@ -319,20 +320,19 @@ err_mem: static int __devexit timbgpio_remove(struct platform_device *pdev) { int err; - struct timbgpio_platform_data *pdata = pdev->dev.platform_data; struct timbgpio *tgpio = platform_get_drvdata(pdev); struct resource *iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); int irq = platform_get_irq(pdev, 0); if (irq >= 0 && tgpio->irq_base > 0) { int i; - for (i = 0; i < pdata->nr_pins; i++) { - set_irq_chip(tgpio->irq_base + i, NULL); - set_irq_chip_data(tgpio->irq_base + i, NULL); + for (i = 0; i < tgpio->gpio.ngpio; i++) { + irq_set_chip(tgpio->irq_base + i, NULL); + irq_set_chip_data(tgpio->irq_base + i, NULL); } - set_irq_handler(irq, NULL); - set_irq_data(irq, NULL); + irq_set_handler(irq, NULL); + irq_set_handler_data(irq, NULL); } err = gpiochip_remove(&tgpio->gpio); diff --git a/drivers/gpio/vr41xx_giu.c b/drivers/gpio/vr41xx_giu.c index cffa3bd7ad3..a365be040b3 100644 --- a/drivers/gpio/vr41xx_giu.c +++ b/drivers/gpio/vr41xx_giu.c @@ -238,13 +238,13 @@ void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, break; } } - set_irq_chip_and_handler(GIU_IRQ(pin), + irq_set_chip_and_handler(GIU_IRQ(pin), &giuint_low_irq_chip, handle_edge_irq); } else { giu_clear(GIUINTTYPL, mask); giu_clear(GIUINTHTSELL, mask); - set_irq_chip_and_handler(GIU_IRQ(pin), + irq_set_chip_and_handler(GIU_IRQ(pin), &giuint_low_irq_chip, handle_level_irq); } @@ -273,13 +273,13 @@ void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, break; } } - set_irq_chip_and_handler(GIU_IRQ(pin), + irq_set_chip_and_handler(GIU_IRQ(pin), &giuint_high_irq_chip, handle_edge_irq); } else { giu_clear(GIUINTTYPH, mask); giu_clear(GIUINTHTSELH, mask); - set_irq_chip_and_handler(GIU_IRQ(pin), + irq_set_chip_and_handler(GIU_IRQ(pin), &giuint_high_irq_chip, handle_level_irq); } @@ -539,9 +539,9 @@ static int __devinit giu_probe(struct platform_device *pdev) chip = &giuint_high_irq_chip; if (trigger & (1 << pin)) - set_irq_chip_and_handler(i, chip, handle_edge_irq); + irq_set_chip_and_handler(i, chip, handle_edge_irq); else - set_irq_chip_and_handler(i, chip, handle_level_irq); + irq_set_chip_and_handler(i, chip, handle_level_irq); } |