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backlight: arcxcnn: Use backlight helper

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Instead of retrieving the backlight brightness in struct
backlight_properties manually, and then checking whether the backlight
should be on at all, use backlight_get_brightness() which does all
this and insulates this from future changes.

Signed-off-by: Stephen Kitt <steve@sk2.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230106164856.1453819-3-steve@sk2.org
This commit is contained in:
Stephen Kitt 2023-01-06 17:48:53 +01:00 committed by Lee Jones
parent 3a396f9859
commit fef0b89a45
1 changed files with 1 additions and 4 deletions
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5
drivers/video/backlight/arcxcnn_bl.c
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@ -130,12 +130,9 @@ static int arcxcnn_set_brightness(struct arcxcnn *lp, u32 brightness)
static int arcxcnn_bl_update_status(struct backlight_device *bl)
{
struct arcxcnn *lp = bl_get_data(bl);
u32 brightness = bl->props.brightness;
u32 brightness = backlight_get_brightness(bl);
int ret;
if (bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
brightness = 0;
ret = arcxcnn_set_brightness(lp, brightness);
if (ret)
return ret;