openwrt/target/linux/bcm27xx/patches-6.6/950-0362-drm-panel-panel-ilitek9881c-Add-prepare_upstream_fir.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

29 lines
1.0 KiB
Diff

From 42d85600154d779801586c9a2a61d8ec7d1cb5bc 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 0362/1085] 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
@@ -1315,6 +1315,7 @@ static int ili9881c_dsi_probe(struct mip
ctx->dsi = dsi;
ctx->desc = of_device_get_match_data(&dsi->dev);
+ ctx->panel.prepare_prev_first = true;
drm_panel_init(&ctx->panel, &dsi->dev, &ili9881c_funcs,
DRM_MODE_CONNECTOR_DSI);