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author | Imre Kaloz <kaloz@openwrt.org> | 2009-11-03 10:49:27 +0000 |
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committer | Imre Kaloz <kaloz@openwrt.org> | 2009-11-03 10:49:27 +0000 |
commit | 6f4a7596370aaa61dc6f605007d72b1813e1f4f8 (patch) | |
tree | 632d6b87886f34dd23c8563f4abb2ffe58236ff5 /target/linux/ixp4xx/patches-2.6.32/402-ixp4xx_gpiolib.patch | |
parent | 5b5838be6c2e2c4c637f6fa982dfd35c50904500 (diff) | |
download | master-187ad058-6f4a7596370aaa61dc6f605007d72b1813e1f4f8.tar.gz master-187ad058-6f4a7596370aaa61dc6f605007d72b1813e1f4f8.tar.bz2 master-187ad058-6f4a7596370aaa61dc6f605007d72b1813e1f4f8.zip |
add preliminary 2.6.32 support
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18283 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ixp4xx/patches-2.6.32/402-ixp4xx_gpiolib.patch')
-rw-r--r-- | target/linux/ixp4xx/patches-2.6.32/402-ixp4xx_gpiolib.patch | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/target/linux/ixp4xx/patches-2.6.32/402-ixp4xx_gpiolib.patch b/target/linux/ixp4xx/patches-2.6.32/402-ixp4xx_gpiolib.patch new file mode 100644 index 0000000000..6317034326 --- /dev/null +++ b/target/linux/ixp4xx/patches-2.6.32/402-ixp4xx_gpiolib.patch @@ -0,0 +1,125 @@ +--- a/arch/arm/mach-ixp4xx/common.c ++++ b/arch/arm/mach-ixp4xx/common.c +@@ -36,6 +36,7 @@ + #include <asm/pgtable.h> + #include <asm/page.h> + #include <asm/irq.h> ++#include <asm/gpio.h> + + #include <asm/mach/map.h> + #include <asm/mach/irq.h> +@@ -375,12 +376,39 @@ static struct platform_device *ixp46x_de + unsigned long ixp4xx_exp_bus_size; + EXPORT_SYMBOL(ixp4xx_exp_bus_size); + ++static int ixp4xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) ++{ ++ gpio_line_config(gpio, IXP4XX_GPIO_IN); ++ return 0; ++} ++EXPORT_SYMBOL(ixp4xx_gpio_direction_input); ++ ++static int ixp4xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int level) ++{ ++ gpio_line_set(gpio, level); ++ gpio_line_config(gpio, IXP4XX_GPIO_OUT); ++ return 0; ++} ++EXPORT_SYMBOL(ixp4xx_gpio_direction_output); ++ ++static struct gpio_chip ixp4xx_gpio_chip = { ++ .label = "IXP4XX_GPIO_CHIP", ++ .direction_input = ixp4xx_gpio_direction_input, ++ .direction_output = ixp4xx_gpio_direction_output, ++ .get = gpio_get_value, ++ .set = gpio_set_value, ++ .base = 0, ++ .ngpio = 16, ++}; ++ + void __init ixp4xx_sys_init(void) + { + ixp4xx_exp_bus_size = SZ_16M; + + platform_add_devices(ixp4xx_devices, ARRAY_SIZE(ixp4xx_devices)); + ++ gpiochip_add(&ixp4xx_gpio_chip); ++ + if (cpu_is_ixp46x()) { + int region; + +--- a/arch/arm/Kconfig ++++ b/arch/arm/Kconfig +@@ -415,6 +415,7 @@ config ARCH_IXP4XX + select GENERIC_GPIO + select GENERIC_TIME + select GENERIC_CLOCKEVENTS ++ select ARCH_REQUIRE_GPIOLIB + help + Support for Intel's IXP4XX (XScale) family of processors. + +--- a/arch/arm/mach-ixp4xx/include/mach/gpio.h ++++ b/arch/arm/mach-ixp4xx/include/mach/gpio.h +@@ -27,47 +27,31 @@ + + #include <linux/kernel.h> + #include <mach/hardware.h> ++#include <asm-generic/gpio.h> /* cansleep wrappers */ + +-static inline int gpio_request(unsigned gpio, const char *label) +-{ +- return 0; +-} +- +-static inline void gpio_free(unsigned gpio) +-{ +- might_sleep(); +- +- return; +-} +- +-static inline int gpio_direction_input(unsigned gpio) +-{ +- gpio_line_config(gpio, IXP4XX_GPIO_IN); +- return 0; +-} +- +-static inline int gpio_direction_output(unsigned gpio, int level) +-{ +- gpio_line_set(gpio, level); +- gpio_line_config(gpio, IXP4XX_GPIO_OUT); +- return 0; +-} ++#define NR_BUILTIN_GPIO 16 + + static inline int gpio_get_value(unsigned gpio) + { +- int value; +- +- gpio_line_get(gpio, &value); +- +- return value; ++ if (gpio < NR_BUILTIN_GPIO) ++ { ++ int value; ++ gpio_line_get(gpio, &value); ++ return value; ++ } ++ else ++ return __gpio_get_value(gpio); + } + + static inline void gpio_set_value(unsigned gpio, int value) + { +- gpio_line_set(gpio, value); ++ if (gpio < NR_BUILTIN_GPIO) ++ gpio_line_set(gpio, value); ++ else ++ __gpio_set_value(gpio, value); + } + +-#include <asm-generic/gpio.h> /* cansleep wrappers */ ++#define gpio_cansleep __gpio_cansleep + + extern int gpio_to_irq(int gpio); + extern int irq_to_gpio(int gpio); |