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Subject[ 02/16] drm/radeon: add quirk for RV100 board
Date
3.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@amd.com>

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>

---
drivers/gpu/drm/radeon/radeon_combios.c | 8 ++++++++
1 file changed, 8 insertions(+)

--- 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_fr
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,



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