diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2012-07-27 14:18:03 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2012-08-14 09:36:50 +1000 |
| commit | 3d7a1da2c2bddb916450b1a124a9bcd9c507bdce (patch) | |
| tree | e7f769eedf79a96360d2a71b9be5a38d468d59c2 | |
| parent | af5e7d84b0ec45b2b614b0d6e3657cbdceaa21f9 (diff) | |
drm/nouveau/aux: mask off higher bits of auxch index in i2c table entry
At least partially fixes DP output detection on W530. Not sure if more
issues remain, or if my adaptor is just behaving weirdly (it does that
sometimes).
In any case, this patch is necessary.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_i2c.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_i2c.c b/drivers/gpu/drm/nouveau/nouveau_i2c.c index 77e564667b5c..240cf962c999 100644 --- a/drivers/gpu/drm/nouveau/nouveau_i2c.c +++ b/drivers/gpu/drm/nouveau/nouveau_i2c.c @@ -229,7 +229,7 @@ nouveau_i2c_init(struct drm_device *dev) } break; case 6: /* NV50- DP AUX */ - port->drive = entry[0]; + port->drive = entry[0] & 0x0f; port->sense = port->drive; port->adapter.algo = &nouveau_dp_i2c_algo; break; |