From: Matthias Kaehlcke Date: Wed, 2 Oct 2019 16:56:01 +0000 (-0700) Subject: backlight: pwm_bl: Don't assign levels table repeatedly X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=de6f2a7fa2c9563266e2a3239e16b117daf22b47;p=openwrt%2Fstaging%2Fblogic.git 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 Reviewed-by: Daniel Thompson Signed-off-by: Lee Jones --- 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