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drm/nouveau/aux: mask off higher bits of auxch index in i2c table entry

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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>
This commit is contained in:
Ben Skeggs 2012-07-27 14:18:03 +10:00
parent af5e7d84b0
commit 3d7a1da2c2
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/nouveau/nouveau_i2c.c
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@ -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;