From 56a71f891b78351e949d98bdfc14d89fd0782640 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Wed, 25 Mar 2015 12:21:58 -0600 Subject: 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 Reviewed-by: Marek Vasut --- drivers/gpio/gpio-uclass.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/gpio') 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); -- cgit v1.2.3