From: Gareth Yu <gareth.yu@xxxxxxxxx>
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 <tejaskumarx.surendrakumar.upadhyay@xxxxxxxxx>
Cc : Matt Roper <matthew.d.roper@xxxxxxxxx>
Cc : Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Gareth Yu <gareth.yu@xxxxxxxxx>
---
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
