linux-kernel - [PATCH] drm/panel: simple: Update timings for AUO G101EVN010

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Message-ID: <20250428210726.3395279-1-kevinb@ventureresearch.com>
Date: Mon, 28 Apr 2025 16:07:26 -0500
From: Kevin Baker <kevinb@...tureresearch.com>
To: Neil Armstrong <neil.armstrong@...aro.org>, Sam Ravnborg
	<sam@...nborg.org>
CC: David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
	<dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>, Kevin
 Baker <kevinb@...tureresearch.com>
Subject: [PATCH] drm/panel: simple: Update timings for AUO G101EVN010

Switch to panel timings based on datasheet for the AUO G101EVN01.0
LVDS panel. Default timings were tested on the panel.

Previous mode-based timings resulted in horizontal display shift.

Signed-off-by: Kevin Baker <kevinb@...tureresearch.com>
---
 drivers/gpu/drm/panel/panel-simple.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index fb8a57afe687..1a3d7ccb328a 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -979,27 +979,28 @@ static const struct panel_desc auo_g070vvn01 = {
 	},
 };
 
-static const struct drm_display_mode auo_g101evn010_mode = {
-	.clock = 68930,
-	.hdisplay = 1280,
-	.hsync_start = 1280 + 82,
-	.hsync_end = 1280 + 82 + 2,
-	.htotal = 1280 + 82 + 2 + 84,
-	.vdisplay = 800,
-	.vsync_start = 800 + 8,
-	.vsync_end = 800 + 8 + 2,
-	.vtotal = 800 + 8 + 2 + 6,
+static const struct display_timing auo_g101evn010_timing = {
+	.pixelclock = { 64000000, 68930000, 85000000 },
+	.hactive = { 1280, 1280, 1280 },
+	.hfront_porch = { 8, 64, 256 },
+	.hback_porch = { 8, 64, 256 },
+	.hsync_len = { 40, 168, 767 },
+	.vactive = { 800, 800, 800 },
+	.vfront_porch = { 4, 8, 100 },
+	.vback_porch = { 4, 8, 100 },
+	.vsync_len = { 8, 16, 223 },
 };
 
 static const struct panel_desc auo_g101evn010 = {
-	.modes = &auo_g101evn010_mode,
-	.num_modes = 1,
+	.timings = &auo_g101evn010_timing,
+	.num_timings = 1,
 	.bpc = 6,
 	.size = {
 		.width = 216,
 		.height = 135,
 	},
 	.bus_format = MEDIA_BUS_FMT_RGB666_1X7X3_SPWG,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH,
 	.connector_type = DRM_MODE_CONNECTOR_LVDS,
 };
 
-- 
2.39.5