linux-kernel - [PATCH v2] drm/edp-panel: Add touchscreen panel used by Lenovo X13s

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20251121-x13s-touchscreen-loopup-v2-1-75b03838e28f@riscstar.com>
Date: Fri, 21 Nov 2025 17:23:54 +0000
From: Daniel Thompson <daniel@...cstar.com>
To: Douglas Anderson <dianders@...omium.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Jessica Zhang <jessica.zhang@....qualcomm.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 Daniel Thompson <daniel@...cstar.com>
Subject: [PATCH v2] drm/edp-panel: Add touchscreen panel used by Lenovo
 X13s

After (checks watch) a little over two years I finally investigated the
boot warning on my Thinkpad X13s and it was caused by the conservative
timings warning in panel-edp.c . The X13s was sold with a variety of
different panel versions; I have the 300 nit multi-touch variant.

I have been unable to secure panel documentation so the I copied the
timings from NV133WUM-N63.

The raw EDID is:

00 ff ff ff ff ff ff 00 09 e5 84 0a 00 00 00 00
1e 1f 01 04 a5 1d 12 78 03 5c 70 a6 51 4c 9c 26
0e 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 74 3c 80 a0 70 b0 28 40 30 20
36 00 1e b3 10 00 00 1a 00 00 00 fd 00 28 3c 4b
4b 10 01 0a 20 20 20 20 20 20 00 00 00 fe 00 42
4f 45 20 48 46 0a 20 20 20 20 20 20 00 00 00 fe
00 4e 56 31 33 33 57 55 4d 2d 54 30 31 0a 00 51

Signed-off-by: Daniel Thompson <daniel@...cstar.com>
---
Changes in v2:

- 0 1 2 3 4 5 6 7 8 9 a b c d e f ... yes, it's coming back to me now!
  Fixed sort order (thanks Doug).
---
 drivers/gpu/drm/panel/panel-edp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c
index 62435e3cd9f4db00be7f1ded7c75e749e4cc14c8..140dc06f7102d3a39201cb7a1000a8e3e46d3e41 100644
--- a/drivers/gpu/drm/panel/panel-edp.c
+++ b/drivers/gpu/drm/panel/panel-edp.c
@@ -1963,6 +1963,7 @@ static const struct edp_panel_entry edp_panels[] = {
 	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0a3e, &delay_200_500_e80_d50, "NV116WHM-N49"),
 	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0a5d, &delay_200_500_e50, "NV116WHM-N45"),
 	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0a6a, &delay_200_500_e80, "NV140WUM-N44"),
+	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0a84, &delay_200_500_e50, "NV133WUM-T01"),
 	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0ac5, &delay_200_500_e50, "NV116WHM-N4C"),
 	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0ae8, &delay_200_500_e50_p2e80, "NV140WUM-N41"),
 	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0b09, &delay_200_500_e50_po2e200, "NV140FHM-NZ"),

---
base-commit: 6a23ae0a96a600d1d12557add110e0bb6e32730c
change-id: 20251121-x13s-touchscreen-loopup-0f335910e5ad

Best regards,
-- 
Daniel Thompson <daniel@...cstar.com>