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authorAlex Deucher <alexander.deucher@amd.com>2012-04-03 17:05:41 -0400
committerDave Airlie <airlied@redhat.com>2012-04-10 10:27:46 +0100
commitafceb9319f21b18ee3bc15ee9a5f92e18ef8a8c9 (patch)
tree3e874864cea99e260b48f5b0717317510e7cdf15 /drivers/gpu
parent6587eb82617f7913c13e750e73e13fa9c829863c (diff)
drm/radeon/kms: fix DVO setup on some r4xx chips
Some r4xx chips have the wrong frev in the DVOEncoderControl table. It should always be 1 on r4xx. Fixes modesetting on DVO on r4xx chips with the bad frev. Reported by twied on #radeon. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/radeon/atombios_encoders.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index e607c4d7dd98..2d39f9977e00 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -230,6 +230,10 @@ atombios_dvo_setup(struct drm_encoder *encoder, int action)
if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev))
return;
+ /* some R4xx chips have the wrong frev */
+ if (rdev->family <= CHIP_RV410)
+ frev = 1;
+
switch (frev) {
case 1:
switch (crev) {