drm/radeon: add primary dac adj quirk for R200 board

vbios values are wrong leading to colors that are
too bright.  Use the default values instead.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 3e403bdda58fc8eb69b3583d647770f2b9b41210..78edadc9e86b22b8ec64d5877f4b98365cafcffd 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -970,6 +970,15 @@ struct radeon_encoder_primary_dac *radeon_combios_get_primary_dac_info(struct
                        found = 1;
        }
 
+       /* quirks */
+       /* Radeon 9100 (R200) */
+       if ((dev->pdev->device == 0x514D) &&
+           (dev->pdev->subsystem_vendor == 0x174B) &&
+           (dev->pdev->subsystem_device == 0x7149)) {
+               /* vbios value is bad, use the default */
+               found = 0;
+       }
+
        if (!found) /* fallback to defaults */
                radeon_legacy_get_primary_dac_info_from_table(rdev, p_dac);