[PATCH v16 09/10] drm/panel: Use of_find_backlight helper

[Meghana Madhyastha]

Replace of_find_backlight_by_node and of the code around it
with of_find_backlight helper to avoid repetition of code.

Signed-off-by: Meghana Madhyastha <meghana.madhyas...@gmail.com>
---
 drivers/gpu/drm/panel/panel-innolux-p079zca.c   | 10 +++-------
 drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c | 10 +++-------
 drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c | 10 +++-------
 3 files changed, 9 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-innolux-p079zca.c 
b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
index 4c1b29eec..a69b0530f 100644
--- a/drivers/gpu/drm/panel/panel-innolux-p079zca.c
+++ b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
@@ -230,14 +230,10 @@ static int innolux_panel_add(struct innolux_panel 
*innolux)
                innolux->enable_gpio = NULL;
        }
 
-       np = of_parse_phandle(dev->of_node, "backlight", 0);
-       if (np) {
-               innolux->backlight = of_find_backlight_by_node(np);
-               of_node_put(np);
+       innolux->backlight = devm_of_find_backlight(np);
 
-               if (!innolux->backlight)
-                       return -EPROBE_DEFER;
-       }
+       if (IS_ERR(innolux->backlight))
+               return PTR_ERR(innolux->backlight);
 
        drm_panel_init(&innolux->base);
        innolux->base.funcs = &innolux_panel_funcs;
diff --git a/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c 
b/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c
index 1512ec4f3..d5450c9d9 100644
--- a/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c
+++ b/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c
@@ -329,14 +329,10 @@ static int sharp_panel_add(struct sharp_panel *sharp)
        if (IS_ERR(sharp->supply))
                return PTR_ERR(sharp->supply);
 
-       np = of_parse_phandle(sharp->link1->dev.of_node, "backlight", 0);
-       if (np) {
-               sharp->backlight = of_find_backlight_by_node(np);
-               of_node_put(np);
+       sharp->backlight = devm_of_find_backlight(np);
 
-               if (!sharp->backlight)
-                       return -EPROBE_DEFER;
-       }
+       if (IS_ERR(sharp->backlight))
+               return PTR_ERR(sharp->backlight);
 
        drm_panel_init(&sharp->base);
        sharp->base.funcs = &sharp_panel_funcs;
diff --git a/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c 
b/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c
index a6af3257f..db31d8268 100644
--- a/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c
+++ b/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c
@@ -273,14 +273,10 @@ static int sharp_nt_panel_add(struct sharp_nt_panel 
*sharp_nt)
                gpiod_set_value(sharp_nt->reset_gpio, 0);
        }
 
-       np = of_parse_phandle(dev->of_node, "backlight", 0);
-       if (np) {
-               sharp_nt->backlight = of_find_backlight_by_node(np);
-               of_node_put(np);
+       sharp_nt->backlight = devm_of_find_backlight(np);
 
-               if (!sharp_nt->backlight)
-                       return -EPROBE_DEFER;
-       }
+       if (IS_ERR(sharp_nt->backlight))
+               return PTR_ERR(sharp_nt->backlight);
 
        drm_panel_init(&sharp_nt->base);
        sharp_nt->base.funcs = &sharp_nt_panel_funcs;
-- 
2.11.0

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