This is a note to let you know that I've just added the patch titled
drm/panel: nt35510: Do not fail if DSI read fails
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-panel-nt35510-do-not-fail-if-dsi-read-fails.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1988e0d84161dabd99d1c27033fbd6ee439bf432 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@xxxxxxxxxx>
Date: Fri, 4 Jun 2021 01:18:30 +0200
Subject: drm/panel: nt35510: Do not fail if DSI read fails
From: Linus Walleij <linus.walleij@xxxxxxxxxx>
commit 1988e0d84161dabd99d1c27033fbd6ee439bf432 upstream.
Failing to read the MTP over DSI should not bring down the
system and make us bail out from using the display, it turns
out that this happens when toggling the display off and on,
and that write is often still working so the display output
is just fine. Printing an error is enough.
Tested by killing the Gnome session repeatedly on the
Samsung Skomer.
Fixes: 899f24ed8d3a ("drm/panel: Add driver for Novatek NT35510-based panels")
Cc: Stephan Gerhold <stephan@xxxxxxxxxxx>
Reported-by: newbyte@xxxxxxxxxxx
Acked-by: Stefan Hansson <newbyte@xxxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20210603231830.3200040-1-linus.walleij@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/panel/panel-novatek-nt35510.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/drivers/gpu/drm/panel/panel-novatek-nt35510.c
+++ b/drivers/gpu/drm/panel/panel-novatek-nt35510.c
@@ -706,9 +706,7 @@ static int nt35510_power_on(struct nt355
if (ret)
return ret;
- ret = nt35510_read_id(nt);
- if (ret)
- return ret;
+ nt35510_read_id(nt);
/* Set up stuff in manufacturer control, page 1 */
ret = nt35510_send_long(nt, dsi, MCS_CMD_MAUCCTR,
Patches currently in stable-queue which might be from linus.walleij@xxxxxxxxxx are
queue-5.10/arm-dts-ux500-fix-orientation-of-accelerometer.patch
queue-5.10/arm-dts-gemini-add-device_type-on-pci.patch
queue-5.10/drm-panel-nt35510-do-not-fail-if-dsi-read-fails.patch
queue-5.10/arm-dts-ux500-rename-gpio-controller-node.patch
queue-5.10/arm-dts-gemini-rename-mdio-to-the-right-name.patch
queue-5.10/arm-dts-ux500-fix-interrupt-cells.patch
