drm/radeon: add quirk for RV100 board
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> Cc: stable@vger.kernel.org
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@ -2470,6 +2470,14 @@ bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev)
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1),
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ATOM_DEVICE_CRT1_SUPPORT);
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}
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/* RV100 board with external TDMS bit mis-set.
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* Actually uses internal TMDS, clear the bit.
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*/
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if (dev->pdev->device == 0x5159 &&
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dev->pdev->subsystem_vendor == 0x1014 &&
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dev->pdev->subsystem_device == 0x029A) {
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tmp &= ~(1 << 4);
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}
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if ((tmp >> 4) & 0x1) {
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devices |= ATOM_DEVICE_DFP2_SUPPORT;
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radeon_add_legacy_encoder(dev,
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