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Commit 9200ee49 authored by Alex Deucher's avatar Alex Deucher
Browse files

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: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 674a16f2

drivers/gpu/drm/radeon/radeon_combios.c

+8 −0
Original line number Diff line number Diff line
@@ -2470,6 +2470,14 @@ 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,