drm/radeon: only add the mm i2c bus if the hw_i2c module param is set
It seems it can corrupt the monitor EDID in certain cases on certain boards when running sensors detect. It's rarely used anyway outside of AIW boards. http://lists.lm-sensors.org/pipermail/lm-sensors/2012-April/035847.html http://lists.freedesktop.org/archives/xorg/2011-January/052239.html Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
parent
6069a4c988
commit
46783150a6
|
@ -900,6 +900,10 @@ struct radeon_i2c_chan *radeon_i2c_create(struct drm_device *dev,
|
|||
struct radeon_i2c_chan *i2c;
|
||||
int ret;
|
||||
|
||||
/* don't add the mm_i2c bus unless hw_i2c is enabled */
|
||||
if (rec->mm_i2c && (radeon_hw_i2c == 0))
|
||||
return NULL;
|
||||
|
||||
i2c = kzalloc(sizeof(struct radeon_i2c_chan), GFP_KERNEL);
|
||||
if (i2c == NULL)
|
||||
return NULL;
|
||||
|
|
Loading…
Reference in a new issue