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authorAlex Deucher <alexander.deucher@amd.com>2012-03-21 01:18:06 +0400
committerDave Airlie <airlied@redhat.com>2012-03-21 10:55:51 +0400
commit97412a7a1da933c7a5feaf4bd6c410d467d79069 (patch)
treedd95ee4b679ec724dd7951c1d5a136651b9e5630 /drivers/gpu/drm/radeon/atombios_dp.c
parent47aef7a8922d48ac2cebc13d39079abe1ce63c35 (diff)
downloadlinux-97412a7a1da933c7a5feaf4bd6c410d467d79069.tar.xz
drm/radeon/kms: DP aux updates for DCE6
DCE6 requires a non-0 value for lpAuxRequest for the ProcessAuxChannelTransaction command table. Setting lpAuxRequest to 0 is a special case used by AsicInit for setting up the aux pads. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_dp.c')
-rw-r--r--drivers/gpu/drm/radeon/atombios_dp.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 191218ad92e7..6c62be226804 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -63,12 +63,12 @@ static int radeon_process_aux_ch(struct radeon_i2c_chan *chan,
memset(&args, 0, sizeof(args));
- base = (unsigned char *)rdev->mode_info.atom_context->scratch;
+ base = (unsigned char *)(rdev->mode_info.atom_context->scratch + 1);
memcpy(base, send, send_bytes);
- args.v1.lpAuxRequest = 0;
- args.v1.lpDataOut = 16;
+ args.v1.lpAuxRequest = 0 + 4;
+ args.v1.lpDataOut = 16 + 4;
args.v1.ucDataOutLen = 0;
args.v1.ucChannelID = chan->rec.i2c_id;
args.v1.ucDelay = delay / 10;