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| author | Simon Glass <sjg@chromium.org> | 2015-06-23 15:38:40 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-07-21 17:39:23 -0600 |
| commit | 32ec159844d7b76f199b07412dd054ad842bdd58 (patch) | |
| tree | 3765e136371dcbbd00e1808c92914fec72a90bd0 /include/asm-generic/gpio.h | |
| parent | ce22c5bbeed179161647f2bc707751761e6fe4bf (diff) | |
| download | talos-obmc-uboot-32ec159844d7b76f199b07412dd054ad842bdd58.tar.gz talos-obmc-uboot-32ec159844d7b76f199b07412dd054ad842bdd58.zip | |
dm: gpio: Add dm_gpio_lookup_name() to look up a GPIO name
Provide a driver-model function to look up a GPIO name. Make the standard
function use it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/asm-generic/gpio.h')
| -rw-r--r-- | include/asm-generic/gpio.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index de91e57efc..b1cf95c687 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -322,6 +322,19 @@ struct gpio_dev_priv { const char *gpio_get_bank_info(struct udevice *dev, int *offset_count); /** + * dm_gpio_lookup_name() - Look up a named GPIO and return its description + * + * The name of a GPIO is typically its bank name followed by a number from 0. + * For example A0 is the first GPIO in bank A. Each bank is a separate driver + * model device. + * + * @name: Name to look up + * @desc: Returns description, on success + * @return 0 if OK, -ve on error + */ +int dm_gpio_lookup_name(const char *name, struct gpio_desc *desc); + +/** * gpio_lookup_name - Look up a GPIO name and return its details * * This is used to convert a named GPIO into a device, offset and GPIO |
