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authorMatthias Kaehlcke <mka@chromium.org>2019-10-02 09:56:01 -0700
committerLee Jones <lee.jones@linaro.org>2019-10-14 08:57:45 +0100
commitde6f2a7fa2c9563266e2a3239e16b117daf22b47 (patch)
treedc3d58df4414e32a169bf2a20fa84c310298a324 /drivers/video
parentcc2f2e10c2056e570addc208560941daa9e06a25 (diff)
backlight: pwm_bl: Don't assign levels table repeatedly
pwm_backlight_probe() re-assigns pb->levels for every brightness level. This is not needed and was likely not intended, since neither side of the assignment changes during the loop. Assign the field only once. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/backlight/pwm_bl.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 746eebc411df..05d3b3802658 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -564,18 +564,17 @@ static int pwm_backlight_probe(struct platform_device *pdev)
memset(&props, 0, sizeof(struct backlight_properties));
if (data->levels) {
+ pb->levels = data->levels;
+
/*
* For the DT case, only when brightness levels is defined
* data->levels is filled. For the non-DT case, data->levels
* can come from platform data, however is not usual.
*/
- for (i = 0; i <= data->max_brightness; i++) {
+ for (i = 0; i <= data->max_brightness; i++)
if (data->levels[i] > pb->scale)
pb->scale = data->levels[i];
- pb->levels = data->levels;
- }
-
if (pwm_backlight_is_linear(data))
props.scale = BACKLIGHT_SCALE_LINEAR;
else