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Subject[PATCH] gpu:drm:tilcdc: backlight node never found
Date
In panel_probe() the backlight node is never found, correct this.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Benoit Parrot <bparrot@ti.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Sachin Kamat <sachin.kamat@linaro.org>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
---
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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