diff options
| author | Simon Glass | 2015-03-25 12:21:58 -0600 |
|---|---|---|
| committer | Simon Glass | 2015-04-18 11:11:19 -0600 |
| commit | 56a71f891b78351e949d98bdfc14d89fd0782640 (patch) | |
| tree | 5454b85fcf05bcc3085859d81ec479df68885d24 /drivers/gpio | |
| parent | c5785673bc6f4b8f2a4974979710a2c5c15eb063 (diff) | |
dm: gpio: Add an implementation for gpio_get_number()
This has a prototype but no implementation. It returns the global GPIO number
given a gpio_desc. It is useful for debugging in some cases.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-uclass.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-uclass.c b/drivers/gpio/gpio-uclass.c index ca94bbb9046..381868bfb15 100644 --- a/drivers/gpio/gpio-uclass.c +++ b/drivers/gpio/gpio-uclass.c @@ -685,6 +685,18 @@ static int gpio_renumber(struct udevice *removed_dev) return 0; } +int gpio_get_number(struct gpio_desc *desc) +{ + struct udevice *dev = desc->dev; + struct gpio_dev_priv *uc_priv; + + if (!dev) + return -1; + uc_priv = dev->uclass_priv; + + return uc_priv->gpio_base + desc->offset; +} + static int gpio_post_probe(struct udevice *dev) { struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev); |