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| author | Deepak Saxena <dsaxena@plexity.net> | 2005-08-29 22:46:30 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-08-29 22:46:30 +0100 |
| commit | bdf82b59c5dcf04bbdbd1938eefca14dd9cb44d3 (patch) | |
| tree | 68983f484e96c737cd504ecd08e7bf669a925cec /include/asm-arm/arch-ixp4xx/platform.h | |
| parent | e605ecd7c8a38f65759c938a235a1b84f41a744e (diff) | |
| download | kernel_samsung_smdk4412-bdf82b59c5dcf04bbdbd1938eefca14dd9cb44d3.tar.gz kernel_samsung_smdk4412-bdf82b59c5dcf04bbdbd1938eefca14dd9cb44d3.tar.bz2 kernel_samsung_smdk4412-bdf82b59c5dcf04bbdbd1938eefca14dd9cb44d3.zip | |
[ARM] 2836/1: Cleanup IXP4xx GPIO code
Patch from Deepak Saxena
This patch implements the set_irq_type() hooks for configuring GPIO
IRQ type and updates all the platforms to use it instead of the
gpio_line_config() function which is now used to configure input
vs. output on the pins.
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-ixp4xx/platform.h')
| -rw-r--r-- | include/asm-arm/arch-ixp4xx/platform.h | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/include/asm-arm/arch-ixp4xx/platform.h b/include/asm-arm/arch-ixp4xx/platform.h index 3a626c03ea2..d13ee7f78c7 100644 --- a/include/asm-arm/arch-ixp4xx/platform.h +++ b/include/asm-arm/arch-ixp4xx/platform.h @@ -83,17 +83,6 @@ extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys); #define IXP4XX_GPIO_OUT 0x1 #define IXP4XX_GPIO_IN 0x2 -#define IXP4XX_GPIO_INTSTYLE_MASK 0x7C /* Bits [6:2] define interrupt style */ - -/* - * GPIO interrupt types. - */ -#define IXP4XX_GPIO_ACTIVE_HIGH 0x4 /* Default */ -#define IXP4XX_GPIO_ACTIVE_LOW 0x8 -#define IXP4XX_GPIO_RISING_EDGE 0x10 -#define IXP4XX_GPIO_FALLING_EDGE 0x20 -#define IXP4XX_GPIO_TRANSITIONAL 0x40 - /* GPIO signal types */ #define IXP4XX_GPIO_LOW 0 #define IXP4XX_GPIO_HIGH 1 @@ -102,7 +91,13 @@ extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys); #define IXP4XX_GPIO_CLK_0 14 #define IXP4XX_GPIO_CLK_1 15 -extern void gpio_line_config(u8 line, u32 style); +static inline void gpio_line_config(u8 line, u32 direction) +{ + if (direction == IXP4XX_GPIO_OUT) + *IXP4XX_GPIO_GPOER |= (1 << line); + else + *IXP4XX_GPIO_GPOER &= ~(1 << line); +} static inline void gpio_line_get(u8 line, int *value) { |