diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2011-11-16 10:24:39 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2012-01-03 09:10:04 +0100 |
| commit | b4e3ac74d5cd4152f2ec6b3280b1ff3428952f7f (patch) | |
| tree | b1dc770b28ac3dcdf2fd2b770827e4112804155e /drivers/pinctrl | |
| parent | f812f0f53e5643c06b929ce3299cbaffb307c488 (diff) | |
pinctrl/coh901: driver to request its pins
This makes the COH 901 driver request muxing of its GPIO pins
from the pinmux-u300 driver using the standard API calls.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-coh901.c | 21 |
2 files changed, 22 insertions, 1 deletions
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index e087f0219f4..e963da41e94 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -32,7 +32,7 @@ config PINMUX_U300 config PINCTRL_COH901 bool "ST-Ericsson U300 COH 901 335/571 GPIO" - depends on GPIOLIB && ARCH_U300 + depends on GPIOLIB && ARCH_U300 && PINMUX_U300 help Say yes here to support GPIO interface on ST-Ericsson U300. The names of the two IP block variants supported are diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c index 4035778852b..69fb7072a23 100644 --- a/drivers/pinctrl/pinctrl-coh901.c +++ b/drivers/pinctrl/pinctrl-coh901.c @@ -22,6 +22,7 @@ #include <linux/gpio.h> #include <linux/list.h> #include <linux/slab.h> +#include <linux/pinctrl/pinmux.h> #include <mach/gpio-u300.h> /* @@ -351,6 +352,24 @@ static inline struct u300_gpio *to_u300_gpio(struct gpio_chip *chip) return container_of(chip, struct u300_gpio, chip); } +static int u300_gpio_request(struct gpio_chip *chip, unsigned offset) +{ + /* + * Map back to global GPIO space and request muxing, the direction + * parameter does not matter for this controller. + */ + int gpio = chip->base + offset; + + return pinmux_request_gpio(gpio); +} + +static void u300_gpio_free(struct gpio_chip *chip, unsigned offset) +{ + int gpio = chip->base + offset; + + pinmux_free_gpio(gpio); +} + static int u300_gpio_get(struct gpio_chip *chip, unsigned offset) { struct u300_gpio *gpio = to_u300_gpio(chip); @@ -483,6 +502,8 @@ static int u300_gpio_config(struct gpio_chip *chip, unsigned offset, static struct gpio_chip u300_gpio_chip = { .label = "u300-gpio-chip", .owner = THIS_MODULE, + .request = u300_gpio_request, + .free = u300_gpio_free, .get = u300_gpio_get, .set = u300_gpio_set, .direction_input = u300_gpio_direction_input, |