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drm/panel: Use of_find_backlight helper

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

Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/140d01afb138d687680b2d1776a4c101c9fa9a0a.1516810725.git.meghana.madhyastha@gmail.com
This commit is contained in:
Meghana Madhyastha
2018-01-24 16:40:51 +00:00
committed by Sean Paul
parent f4ccc2b576
commit c69f94570d
3 changed files with 13 additions and 66 deletions
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28
drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c
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@@ -318,8 +318,7 @@ MODULE_DEVICE_TABLE(of, sharp_of_match);
static int sharp_panel_add(struct sharp_panel *sharp)
{
struct device_node *np;
int err;
struct device *dev = &sharp->link1->dev;
sharp->mode = &default_mode;
@@ -327,30 +326,16 @@ 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(dev);
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;
sharp->base.dev = &sharp->link1->dev;
err = drm_panel_add(&sharp->base);
if (err < 0)
goto put_backlight;
return 0;
put_backlight:
if (sharp->backlight)
put_device(&sharp->backlight->dev);
return err;
return drm_panel_add(&sharp->base);
}
static void sharp_panel_del(struct sharp_panel *sharp)
@@ -358,9 +343,6 @@ static void sharp_panel_del(struct sharp_panel *sharp)
if (sharp->base.dev)
drm_panel_remove(&sharp->base);
if (sharp->backlight)
put_device(&sharp->backlight->dev);
if (sharp->link2)
put_device(&sharp->link2->dev);
}