[PATCH] gpu:drm:tilcdc: backlight node never found

[Heiko Schocher]

In panel_probe() the backlight node is never found, correct this.

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