Den 16.01.2018 11.36, skrev 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);
This driver isn't broken like tinydrm was, so it does put the backlight
device on cleanup like it should. So when you're using the devm_ version,
the result is a double put. Just remove the put_device() in
innolux_panel_add/del() and you're good.
I haven't checked the other drivers.
Noralf.
PS:
Give people a few days (one week?) to respond before respinning a new
version, so we avoid a fragmented discussion.
- 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;
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