[PATCH v5 13/19] backlight: as3711_bl: simplify update_status

Sam Ravnborg
2020-07-19T08:08:24Z

Replaces the open-coded checks of the state, with the
backlight_get_brightness() helper. This increases readability
of the code and align the functionality across the drivers.

Futhermore drop the debug prints in update_status().
If we need debug printing then we can add it to the backlight core.

v2:
- Use backlight_get_brightness()

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
---
drivers/video/backlight/as3711_bl.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/video/backlight/as3711_bl.c b/drivers/video/backlight/as3711_bl.c
index 33f0f0f2e8b3..3b60019cdc2b 100644
--- a/drivers/video/backlight/as3711_bl.c
+++ b/drivers/video/backlight/as3711_bl.c
@@ -104,17 +104,10 @@ static int as3711_bl_update_status(struct backlight_device *bl)
struct as3711_bl_data *data = bl_get_data(bl);
struct as3711_bl_supply *supply = to_supply(data);
struct as3711 *as3711 = supply->as3711;
- int brightness = bl->props.brightness;
+ int brightness;
int ret = 0;

- dev_dbg(&bl->dev, "%s(): brightness %u, pwr %x, blank %x, state %x\n",
- __func__, bl->props.brightness, bl->props.power,
- bl->props.fb_blank, bl->props.state);
-
- if (bl->props.power != FB_BLANK_UNBLANK ||
- bl->props.fb_blank != FB_BLANK_UNBLANK ||
- bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
- brightness = 0;
+ brightness = backlight_get_brightness(bl);

if (data->type == AS3711_BL_SU1) {
ret = as3711_set_brightness_v(as3711, brightness,
--
2.25.1