20ea6adbf1
Build system: x86_64 Build-tested: bcm2708, bcm2709, bcm2710, bcm2711 Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B Signed-off-by: Marty Jones <mj8263788@gmail.com> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
29 lines
1.0 KiB
Diff
29 lines
1.0 KiB
Diff
From 3326a363351e727a227a5dfcbec1665b97a1a7e9 Mon Sep 17 00:00:00 2001
|
|
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
Date: Thu, 31 Mar 2022 12:05:04 +0100
|
|
Subject: [PATCH] drm/panel: panel-ilitek9881c: Add
|
|
prepare_upstream_first flag
|
|
|
|
The panel sends MIPI DCS commands during prepare and is expecting
|
|
the bus to remain in LP-11 state in-between.
|
|
|
|
Set the prepare_upstream_first flag so that the upstream DSI host
|
|
is prepared / pre_enabled first, and therefore the bus is in a
|
|
defined state.
|
|
|
|
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
---
|
|
drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 1 +
|
|
1 file changed, 1 insertion(+)
|
|
|
|
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
|
|
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
|
|
@@ -888,6 +888,7 @@ static int ili9881c_dsi_probe(struct mip
|
|
ctx->dsi = dsi;
|
|
ctx->desc = of_device_get_match_data(&dsi->dev);
|
|
|
|
+ ctx->panel.prepare_upstream_first = true;
|
|
drm_panel_init(&ctx->panel, &dsi->dev, &ili9881c_funcs,
|
|
DRM_MODE_CONNECTOR_DSI);
|
|
|