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drm/nouveau: Workaround incorrect DCB entry on a GeForce3 Ti 200.

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Fixes the DVI-D output on that board (fdo bug 32645).

Reported-by: Bryan Quigley <BryanQuigley@Ubuntu.com>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Francisco Jerez 2010-12-25 15:43:30 +01:00 committed by Ben Skeggs
parent 51f73d64b4
commit 670820c0e6
1 changed files with 15 additions and 0 deletions
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15
drivers/gpu/drm/nouveau/nouveau_bios.c
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@ -6310,6 +6310,9 @@ void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb)
static bool
apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct dcb_table *dcb = &dev_priv->vbios.dcb;
/* Dell Precision M6300
* DCB entry 2: 02025312 00000010
* DCB entry 3: 02026312 00000020
@ -6327,6 +6330,18 @@ apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf)
return false;
}
/* GeForce3 Ti 200
*
* DCB reports an LVDS output that should be TMDS:
* DCB entry 1: f2005014 ffffffff
*/
if (nv_match_device(dev, 0x0201, 0x1462, 0x8851)) {
if (*conn == 0xf2005014 && *conf == 0xffffffff) {
fabricate_dcb_output(dcb, OUTPUT_TMDS, 1, 1, 1);
return false;
}
}
return true;
}