diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2012-05-17 15:54:40 -0400 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-05-18 18:48:36 -0400 |
| commit | 3d0f7cf0f3633f92ddeb767eb59cab73963d4dee (patch) | |
| tree | be23f5d9657d558d690adc84b16bdd6d91668f47 /drivers/gpio/gpiolib.c | |
| parent | 09d71ff19404b3957fab6de942fb8026ccfd8524 (diff) | |
gpio: Adjust of_xlate API to support multiple GPIO chips
This patch changes the of_xlate API to make it possible for multiple
gpio_chips to refer to the same device tree node. This is useful for
banked GPIO controllers that use multiple gpio_chips for a single
device. With this change the core code will try calling of_xlate on
each gpio_chip that references the device_node and will return the
gpio number for the first one to return 'true'.
Tested-by: Roland Stigge <stigge@antcom.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 566d0122d832..38353c028fdd 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c | |||
| @@ -1156,7 +1156,7 @@ EXPORT_SYMBOL_GPL(gpiochip_remove); | |||
| 1156 | */ | 1156 | */ |
| 1157 | struct gpio_chip *gpiochip_find(const void *data, | 1157 | struct gpio_chip *gpiochip_find(const void *data, |
| 1158 | int (*match)(struct gpio_chip *chip, | 1158 | int (*match)(struct gpio_chip *chip, |
| 1159 | const void *data)) | 1159 | void *data)) |
| 1160 | { | 1160 | { |
| 1161 | struct gpio_chip *chip = NULL; | 1161 | struct gpio_chip *chip = NULL; |
| 1162 | unsigned long flags; | 1162 | unsigned long flags; |