diff options
| author | Roland Stigge <stigge@antcom.de> | 2012-06-20 16:33:52 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2012-07-12 13:40:17 +0200 |
| commit | 0bdfeddc49a80eeb4544ae50b46db7ed695accb8 (patch) | |
| tree | 67e9589bd68befe81b08ca65f94714f8026e3edc /drivers/gpio/gpio-lpc32xx.c | |
| parent | 0c65ddd460086084079eeeb14d062c9a0c437ca0 (diff) | |
| download | lwn-0bdfeddc49a80eeb4544ae50b46db7ed695accb8.tar.gz lwn-0bdfeddc49a80eeb4544ae50b46db7ed695accb8.zip | |
gpio: gpio-lpc32xx: Add gpio_to_irq mapping
This patch helps mapping with gpio_to_irq for the GPIOs that are irq enabled.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Tested-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-lpc32xx.c')
| -rw-r--r-- | drivers/gpio/gpio-lpc32xx.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-lpc32xx.c b/drivers/gpio/gpio-lpc32xx.c index c8c2a513ba84..8a420f13905e 100644 --- a/drivers/gpio/gpio-lpc32xx.c +++ b/drivers/gpio/gpio-lpc32xx.c @@ -28,6 +28,7 @@ #include <mach/hardware.h> #include <mach/platform.h> #include <mach/gpio-lpc32xx.h> +#include <mach/irqs.h> #define LPC32XX_GPIO_P3_INP_STATE _GPREG(0x000) #define LPC32XX_GPIO_P3_OUTP_SET _GPREG(0x004) @@ -367,6 +368,66 @@ static int lpc32xx_gpio_request(struct gpio_chip *chip, unsigned pin) return -EINVAL; } +static int lpc32xx_gpio_to_irq_p01(struct gpio_chip *chip, unsigned offset) +{ + return IRQ_LPC32XX_P0_P1_IRQ; +} + +static const char lpc32xx_gpio_to_irq_gpio_p3_table[] = { + IRQ_LPC32XX_GPIO_00, + IRQ_LPC32XX_GPIO_01, + IRQ_LPC32XX_GPIO_02, + IRQ_LPC32XX_GPIO_03, + IRQ_LPC32XX_GPIO_04, + IRQ_LPC32XX_GPIO_05, +}; + +static int lpc32xx_gpio_to_irq_gpio_p3(struct gpio_chip *chip, unsigned offset) +{ + if (offset < ARRAY_SIZE(lpc32xx_gpio_to_irq_gpio_p3_table)) + return lpc32xx_gpio_to_irq_gpio_p3_table[offset]; + return -ENXIO; +} + +static const char lpc32xx_gpio_to_irq_gpi_p3_table[] = { + IRQ_LPC32XX_GPI_00, + IRQ_LPC32XX_GPI_01, + IRQ_LPC32XX_GPI_02, + IRQ_LPC32XX_GPI_03, + IRQ_LPC32XX_GPI_04, + IRQ_LPC32XX_GPI_05, + IRQ_LPC32XX_GPI_06, + IRQ_LPC32XX_GPI_07, + IRQ_LPC32XX_GPI_08, + IRQ_LPC32XX_GPI_09, + -ENXIO, /* 10 */ + -ENXIO, /* 11 */ + -ENXIO, /* 12 */ + -ENXIO, /* 13 */ + -ENXIO, /* 14 */ + -ENXIO, /* 15 */ + -ENXIO, /* 16 */ + -ENXIO, /* 17 */ + -ENXIO, /* 18 */ + IRQ_LPC32XX_GPI_19, + -ENXIO, /* 20 */ + -ENXIO, /* 21 */ + -ENXIO, /* 22 */ + -ENXIO, /* 23 */ + -ENXIO, /* 24 */ + -ENXIO, /* 25 */ + -ENXIO, /* 26 */ + -ENXIO, /* 27 */ + IRQ_LPC32XX_GPI_28, +}; + +static int lpc32xx_gpio_to_irq_gpi_p3(struct gpio_chip *chip, unsigned offset) +{ + if (offset < ARRAY_SIZE(lpc32xx_gpio_to_irq_gpi_p3_table)) + return lpc32xx_gpio_to_irq_gpi_p3_table[offset]; + return -ENXIO; +} + static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = { { .chip = { @@ -376,6 +437,7 @@ static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = { .direction_output = lpc32xx_gpio_dir_output_p012, .set = lpc32xx_gpio_set_value_p012, .request = lpc32xx_gpio_request, + .to_irq = lpc32xx_gpio_to_irq_p01, .base = LPC32XX_GPIO_P0_GRP, .ngpio = LPC32XX_GPIO_P0_MAX, .names = gpio_p0_names, @@ -391,6 +453,7 @@ static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = { .direction_output = lpc32xx_gpio_dir_output_p012, .set = lpc32xx_gpio_set_value_p012, .request = lpc32xx_gpio_request, + .to_irq = lpc32xx_gpio_to_irq_p01, .base = LPC32XX_GPIO_P1_GRP, .ngpio = LPC32XX_GPIO_P1_MAX, .names = gpio_p1_names, @@ -421,6 +484,7 @@ static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = { .direction_output = lpc32xx_gpio_dir_output_p3, .set = lpc32xx_gpio_set_value_p3, .request = lpc32xx_gpio_request, + .to_irq = lpc32xx_gpio_to_irq_gpio_p3, .base = LPC32XX_GPIO_P3_GRP, .ngpio = LPC32XX_GPIO_P3_MAX, .names = gpio_p3_names, @@ -434,6 +498,7 @@ static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = { .direction_input = lpc32xx_gpio_dir_in_always, .get = lpc32xx_gpi_get_value, .request = lpc32xx_gpio_request, + .to_irq = lpc32xx_gpio_to_irq_gpi_p3, .base = LPC32XX_GPI_P3_GRP, .ngpio = LPC32XX_GPI_P3_MAX, .names = gpi_p3_names, |