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sunxi: gpio: Add temporary implementation of name_to_gpio() 

Until sunxi moves to device tree (e.g. for USB) we need to convert named
GPIOs to numbers. Add a function to do this.

This fixes the USB / EHCI support not working on the LinkSprite pcDuino3
(which uses devicemodel).

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Simon Glass 2015-04-18 11:33:43 -06:00 committed by Hans de Goede
parent 07ce60f3cd
commit a5ab8838c6
1 changed files with 11 additions and 0 deletions
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11
drivers/gpio/sunxi_gpio.c
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@ -172,6 +172,17 @@ int sunxi_name_to_gpio(const char *name)
#endif
#ifdef CONFIG_DM_GPIO
/* TODO(sjg@chromium.org): Remove this function and use device tree */
int sunxi_name_to_gpio(const char *name)
{
unsigned int gpio;
int ret;
ret = gpio_lookup_name(name, NULL, NULL, &gpio);
return ret ? ret : gpio;
}
static int sunxi_gpio_direction_input(struct udevice *dev, unsigned offset)
{
struct sunxi_gpio_platdata *plat = dev_get_platdata(dev);