In panel_probe() the backlight node is never found, correct this.
Signed-off-by: Heiko Schocher <hs@xxxxxxx>
Cc: Anatolij Gustschin <agust@xxxxxxx>
Cc: Benoit Parrot <bparrot@xxxxxx>
Cc: Rob Clark <robdclark@xxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Grant Likely <grant.likely@xxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
Cc: Sachin Kamat <sachin.kamat@xxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
---
drivers/gpu/drm/tilcdc/tilcdc_panel.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_panel.c b/drivers/gpu/drm/tilcdc/tilcdc_panel.c
index 86c6732..0b97cf4 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_panel.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_panel.c
@@ -356,6 +356,7 @@ static struct of_device_id panel_of_match[];
static int panel_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
+ struct device_node *backlight_node;
struct panel_module *panel_mod;
struct tilcdc_module *mod;
struct pinctrl *pinctrl;
@@ -395,9 +396,15 @@ static int panel_probe(struct platform_device *pdev)
mod->preferred_bpp = panel_mod->info->bpp;
- panel_mod->backlight = of_find_backlight_by_node(node);
- if (panel_mod->backlight)
- dev_info(&pdev->dev, "found backlight\n");
+ backlight_node = of_parse_phandle(pdev->dev.of_node, "backlight", 0);
+ if (backlight_node) {
+ panel_mod->backlight =
+ of_find_backlight_by_node(backlight_node);
+ if (panel_mod->backlight)
+ dev_info(&pdev->dev, "found backlight\n");
+ } else {
+ dev_warn(&pdev->dev, "backlight node missing...\n");
+ }
return 0;
--
1.8.3.1
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