From 2f8ae458ab828876767f9217a1c0dacc82b3a1b3 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 0637/1085] 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,
