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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>
This commit is contained in:
Alex Deucher 2012-03-20 17:18:06 -04:00 committed by Dave Airlie
parent 47aef7a892
commit 97412a7a1d
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/radeon/atombios_dp.c
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@ -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;