video: simple-panel: Add a little more debugging

Add some debugging to show when the backlight is enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1

diff --git a/drivers/video/simple_panel.c b/drivers/video/simple_panel.c
index baa95f6a120a0caebe63473dadc754f5a217ed55..c0ce199c6af069ad1f8cc26fc44d127d1bd4ef38 100644 (file)
--- a/drivers/video/simple_panel.c
+++ b/drivers/video/simple_panel.c
@@ -25,8 +25,10 @@ static int simple_panel_enable_backlight(struct udevice *dev)
        struct simple_panel_priv *priv = dev_get_priv(dev);
        int ret;
 
+       debug("%s: start, backlight = '%s'\n", __func__, priv->backlight->name);
        dm_gpio_set_value(&priv->enable, 1);
        ret = backlight_enable(priv->backlight);
+       debug("%s: done, ret = %d\n", __func__, ret);
        if (ret)
                return ret;