From: Thomas Zimmermann <tzimmermann@xxxxxxx>
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 <tzimmermann@xxxxxxx>
Reviewed-by: Jocelyn Falempe <jfalempe@xxxxxxxxxx>
Fixes: 414c45310625 ("mgag200: initial g200se driver (v2)")
Cc: Dave Airlie <airlied@xxxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Maxime Ripard <mripard@xxxxxxxxxx>
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Jocelyn Falempe <jfalempe@xxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: <stable@xxxxxxxxxxxxxxx> # v3.5+
Link: https://patchwork.freedesktop.org/patch/msgid/20240513125620.6337-2-tzimmermann@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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
@@ -133,7 +133,7 @@ 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 tzimmermann@xxxxxxx are
queue-4.19/drm-mgag200-set-ddc-timeout-in-milliseconds.patch
