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authorJerome Glisse <jglisse@redhat.com>2011-01-26 17:51:03 -0500
committerDave Airlie <airlied@gmail.com>2011-01-27 13:52:05 +1000
commit6bba2e116808ca12e30c8d88dfedabf8b8d67390 (patch)
tree92df638a6de6df44a63bab207404ed67c76dba67 /drivers/gpu/drm/radeon/atombios_dp.c
parent52bb4a7391321b9f32c0b6e032d0a5e1796f1968 (diff)
downloadlinux-stericsson-6bba2e116808ca12e30c8d88dfedabf8b8d67390.tar.gz
radeon/kms: fix dp displayport mode validation
Check if there is a big enough dp clock & enough dp lane to drive the video mode provided. Signed-off-by: Jerome Glisse <jglisse@redhat.com> Reviewed-By: Alex Deucher <alexdeucher@gmail.com> Cc: <stable@kernel.org> Signed-off-by: Dave Airlie <airlied@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_dp.c')
-rw-r--r--drivers/gpu/drm/radeon/atombios_dp.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 4e7778d44b8d..695de9a38506 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -187,9 +187,9 @@ static int dp_link_clock_for_mode_clock(u8 dpcd[DP_DPCD_SIZE], int mode_clock)
int dp_mode_valid(u8 dpcd[DP_DPCD_SIZE], int mode_clock)
{
int lanes = dp_lanes_for_mode_clock(dpcd, mode_clock);
- int bw = dp_lanes_for_mode_clock(dpcd, mode_clock);
+ int dp_clock = dp_link_clock_for_mode_clock(dpcd, mode_clock);
- if ((lanes == 0) || (bw == 0))
+ if ((lanes == 0) || (dp_clock == 0))
return MODE_CLOCK_HIGH;
return MODE_OK;