[PATCH] drm/panel: simple: Add Raystar RFF500F-AWH-DNN enable delay

[Fabio Estevam <festevam@gmail.com>]

From: Fabio Estevam <festevam@nabladev.com>

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: stable@vger.kernel.org
Fixes: 1b2a9ec82099 ("drm/panel: simple: Add Raystar RFF500F-AWH-DNN panel entry")
Signed-off-by: Fabio Estevam <festevam@nabladev.com>
---
 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,
 };
-- 
2.43.0