This is a note to let you know that I've just added the patch titled
drm/mgag200: Set DDC timeout in milliseconds
to the 5.15-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-mgag200-set-ddc-timeout-in-milliseconds.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From ecde5db1598aecab54cc392282c15114f526f05f Mon Sep 17 00:00:00 2001
From: Thomas Zimmermann <[email protected]>
Date: Mon, 13 May 2024 14:51:06 +0200
Subject: drm/mgag200: Set DDC timeout in milliseconds
From: Thomas Zimmermann <[email protected]>
commit ecde5db1598aecab54cc392282c15114f526f05f upstream.
Compute the i2c timeout in jiffies from a value in milliseconds. The
original values of 2 jiffies equals 2 milliseconds if HZ has been
configured to a value of 1000. This corresponds to 2.2 milliseconds
used by most other DRM drivers. Update mgag200 accordingly.
Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Jocelyn Falempe <[email protected]>
Fixes: 414c45310625 ("mgag200: initial g200se driver (v2)")
Cc: Dave Airlie <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: Jocelyn Falempe <[email protected]>
Cc: [email protected]
Cc: <[email protected]> # v3.5+
Link:
https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/mgag200/mgag200_i2c.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/mgag200/mgag200_i2c.c
+++ b/drivers/gpu/drm/mgag200/mgag200_i2c.c
@@ -134,7 +134,7 @@ struct mga_i2c_chan *mgag200_i2c_create(
i2c->adapter.algo_data = &i2c->bit;
i2c->bit.udelay = 10;
- i2c->bit.timeout = 2;
+ i2c->bit.timeout = usecs_to_jiffies(2200);
i2c->bit.data = i2c;
i2c->bit.setsda = mga_gpio_setsda;
i2c->bit.setscl = mga_gpio_setscl;
Patches currently in stable-queue which might be from [email protected] are
queue-5.15/drm-client-fix-null-pointer-dereference-in-drm_client_modeset_probe.patch
queue-5.15/drm-mgag200-set-ddc-timeout-in-milliseconds.patch
