diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2011-10-31 23:46:42 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-10-31 23:46:42 +0100 |
| commit | efa62e1355f0495f37f1296754b8880947c8da72 (patch) | |
| tree | c07af29f8baf2e6f4ed3bedbe46d405924edd530 /drivers/gpio/gpio-ep93xx.c | |
| parent | 107532920226a37e595697959b2a6a823cfa2497 (diff) | |
| parent | f55be1bf52aad524dc1bf556ae26c90262c87825 (diff) | |
| download | linux-efa62e1355f0495f37f1296754b8880947c8da72.tar.bz2 | |
Merge branch 'depends/rmk/gpio' into next/devel
Conflicts:
arch/arm/mach-mxs/include/mach/gpio.h
arch/arm/plat-mxc/include/mach/gpio.h
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/gpio/gpio-ep93xx.c')
| -rw-r--r-- | drivers/gpio/gpio-ep93xx.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c index 72fb9c665320..7aafbb437339 100644 --- a/drivers/gpio/gpio-ep93xx.c +++ b/drivers/gpio/gpio-ep93xx.c @@ -23,6 +23,9 @@ #include <linux/basic_mmio_gpio.h> #include <mach/hardware.h> +#include <mach/gpio-ep93xx.h> + +#define irq_to_gpio(irq) ((irq) - gpio_to_irq(0)) struct ep93xx_gpio { void __iomem *mmio_base; @@ -307,6 +310,21 @@ static int ep93xx_gpio_set_debounce(struct gpio_chip *chip, return 0; } +/* + * Map GPIO A0..A7 (0..7) to irq 64..71, + * B0..B7 (7..15) to irq 72..79, and + * F0..F7 (16..24) to irq 80..87. + */ +static int ep93xx_gpio_to_irq(struct gpio_chip *chip, unsigned offset) +{ + int gpio = chip->base + offset; + + if (gpio > EP93XX_GPIO_LINE_MAX_IRQ) + return -EINVAL; + + return 64 + gpio; +} + static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev, void __iomem *mmio_base, struct ep93xx_gpio_bank *bank) { @@ -321,8 +339,10 @@ static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev, bgc->gc.label = bank->label; bgc->gc.base = bank->base; - if (bank->has_debounce) + if (bank->has_debounce) { bgc->gc.set_debounce = ep93xx_gpio_set_debounce; + bgc->gc.to_irq = ep93xx_gpio_to_irq; + } return gpiochip_add(&bgc->gc); } |