openwrt/target/linux/bcm27xx/patches-6.1/950-0990-drm-panel-waveshare-Fix-up-timings-for-10.1-panel.patch
Marty Jones 2e715fb4fc bcm27xx: update 6.1 patches to latest version
Add support for BCM2712 (Raspberry Pi 5).
3bb5880ab3
Patches were generated from the diff between linux kernel branch linux-6.1.y
and rpi-6.1.y from raspberry pi kernel source:
- git format-patch linux-6.1.y...rpi-6.1.y

Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2710/RPi3B, bcm2711/RPi4B

Signed-off-by: Marty Jones <mj8263788@gmail.com>
[Remove applied and reverted patches, squash patches and config commits]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-01-25 17:46:45 +01:00

34 lines
1.2 KiB
Diff

From c7cf33911d477fe55a91a9e4d84dad857b244ae3 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Fri, 28 Jul 2023 18:10:53 +0100
Subject: [PATCH] drm/panel: waveshare: Fix up timings for 10.1" panel
The 10.1" panel doesn't work with the timings defined. vc4
will always have been fixing up the timing due to the limited
integer divider, so compute the fixed up mode and use it
directly.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
drivers/gpu/drm/panel/panel-waveshare-dsi.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/gpu/drm/panel/panel-waveshare-dsi.c
+++ b/drivers/gpu/drm/panel/panel-waveshare-dsi.c
@@ -112,11 +112,11 @@ static const struct drm_display_mode ws_
* https://www.waveshare.com/product/raspberry-pi/displays/10.1inch-dsi-lcd-c.htm
*/
static const struct drm_display_mode ws_panel_10_1_mode = {
- .clock = 76800,
+ .clock = 83333,
.hdisplay = 1280,
- .hsync_start = 1280 + 40,
- .hsync_end = 1280 + 40 + 20,
- .htotal = 1280 + 40 + 20 + 40,
+ .hsync_start = 1280 + 156,
+ .hsync_end = 1280 + 156 + 20,
+ .htotal = 1280 + 156 + 20 + 40,
.vdisplay = 800,
.vsync_start = 800 + 40,
.vsync_end = 800 + 40 + 48,