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| author | Alex Deucher <alexander.deucher@amd.com> | 2013-01-29 16:36:47 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-02-11 08:16:47 -0800 |
| commit | dfd365b9521a33e63210824d31838b9c8b258d4a (patch) | |
| tree | 554aad90638f39f46d61c4ca5fabfc85ddb5effa | |
| parent | ed1d34ff0dc2d2a92764c1a6f07b4a182ef6b88a (diff) | |
| download | lwn-dfd365b9521a33e63210824d31838b9c8b258d4a.tar.gz lwn-dfd365b9521a33e63210824d31838b9c8b258d4a.zip | |
drm/radeon: add quirk for RV100 board
commit 9200ee4941a6e5d1ec5df88982243686882dff3f upstream.
vbios says external TMDS while the board is actually
internal TMDS.
fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=60037
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_combios.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 859df6b5bcaa..2157e770d35a 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -2338,6 +2338,14 @@ bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev) 1), ATOM_DEVICE_CRT1_SUPPORT); } + /* RV100 board with external TDMS bit mis-set. + * Actually uses internal TMDS, clear the bit. + */ + if (dev->pdev->device == 0x5159 && + dev->pdev->subsystem_vendor == 0x1014 && + dev->pdev->subsystem_device == 0x029A) { + tmp &= ~(1 << 4); + } if ((tmp >> 4) & 0x1) { devices |= ATOM_DEVICE_DFP2_SUPPORT; radeon_add_legacy_encoder(dev, |