video: Allow simple-panel to be used without regulators
At present simple-panel requires regulator support and will not build
without it. But some panels do not have a power supply, or at least not one
that can be controlled. Update the implementation to cope with this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
diff --git a/drivers/video/simple_panel.c b/drivers/video/simple_panel.c
index c73f242..6219300 100644
--- a/drivers/video/simple_panel.c
+++ b/drivers/video/simple_panel.c
@@ -38,13 +38,15 @@
struct simple_panel_priv *priv = dev_get_priv(dev);
int ret;
- ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev,
- "power-supply", &priv->reg);
- if (ret) {
- debug("%s: Warning: cnnot get power supply: ret=%d\n",
- __func__, ret);
- if (ret != -ENOENT)
- return ret;
+ if (IS_ENABLED(CONFIG_DM_REGULATOR)) {
+ ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev,
+ "power-supply", &priv->reg);
+ if (ret) {
+ debug("%s: Warning: cnnot get power supply: ret=%d\n",
+ __func__, ret);
+ if (ret != -ENOENT)
+ return ret;
+ }
}
ret = uclass_get_device_by_phandle(UCLASS_PANEL_BACKLIGHT, dev,
"backlight", &priv->backlight);
@@ -69,7 +71,7 @@
struct simple_panel_priv *priv = dev_get_priv(dev);
int ret;
- if (priv->reg) {
+ if (IS_ENABLED(CONFIG_DM_REGULATOR) && priv->reg) {
debug("%s: Enable regulator '%s'\n", __func__, priv->reg->name);
ret = regulator_set_enable(priv->reg, true);
if (ret)