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[U-Boot,07/21] sunxi: gpio: Add temporary implementation of name_to_gpio()

Message ID 1429883310-22441-8-git-send-email-hdegoede@redhat.com
State Accepted
Delegated to: Hans de Goede
Headers show

Commit Message

Hans de Goede April 24, 2015, 1:48 p.m. UTC 
From: Simon Glass <sjg@chromium.org>

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>
---
 drivers/gpio/sunxi_gpio.c | 11 +++++++++++
 1 file changed, 11 insertions(+)
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Patch

diff --git a/drivers/gpio/sunxi_gpio.c b/drivers/gpio/sunxi_gpio.c
index 29301c4..89209df 100644
--- a/drivers/gpio/sunxi_gpio.c
+++ b/drivers/gpio/sunxi_gpio.c
@@ -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);