On 9/9/26 22:13, Fabio Estevam wrote:
From: Fabio Estevam <[email protected]>
The RFF500F-AWH-DNN datasheet requires a minimum delay of 250 ms
between display signal output and backlight power-on.
Without this delay, the backlight can expose unsettled panel contents
during display startup, resulting in a brief bright flash.
Set the panel enable delay to the datasheet-specified minimum.
Cc: [email protected]
Fixes: 1b2a9ec82099 ("drm/panel: simple: Add Raystar RFF500F-AWH-DNN panel
entry")
Signed-off-by: Fabio Estevam <[email protected]>
---
drivers/gpu/drm/panel/panel-simple.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-simple.c
b/drivers/gpu/drm/panel/panel-simple.c
index c95964ba25a9..70e37ff12c9e 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -4354,6 +4354,9 @@ static const struct panel_desc raystar_rff500f_awh_dnn = {
.width = 108,
.height = 65,
},
+ .delay = {
+ .enable = 250,
+ },
.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
.connector_type = DRM_MODE_CONNECTOR_LVDS,
};
Reviewed-by: Neil Armstrong <[email protected]>
Thanks,
Neil
