From: Gareth Yu <[email protected]> Turn on the panel from zero brightness of the last state, the panel was set a maximum PWM in the flow. Once the panel initialization is completed, the backlight is restored to zero brightness. There is a flckering generated.
Set the brightness to the minimum value when the brightness is less or equal to the minimum value to fix this flickering Cc : Tejas Upadhyay <[email protected]> Cc : Matt Roper <[email protected]> Cc : Ville Syrjälä <[email protected]> Signed-off-by: Gareth Yu <[email protected]> --- drivers/gpu/drm/i915/display/intel_backlight.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_backlight.c b/drivers/gpu/drm/i915/display/intel_backlight.c index 3f3cd944a1c5..855d6ead905c 100644 --- a/drivers/gpu/drm/i915/display/intel_backlight.c +++ b/drivers/gpu/drm/i915/display/intel_backlight.c @@ -762,7 +762,7 @@ static void __intel_backlight_enable(const struct intel_crtc_state *crtc_state, WARN_ON(panel->backlight.max == 0); if (panel->backlight.level <= panel->backlight.min) { - panel->backlight.level = panel->backlight.max; + panel->backlight.level = panel->backlight.min; if (panel->backlight.device) panel->backlight.device->props.brightness = scale_hw_to_user(connector, -- 2.25.1
