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| author | Alex Deucher <alexander.deucher@amd.com> | 2012-01-20 14:50:18 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-02-03 09:38:05 +0000 |
| commit | 30388c6e48e62b2806b14552275f091e2f5adbf4 (patch) | |
| tree | 304ba513a92d61a4943392df4b35b306add5cc07 /drivers/gpu/drm/drm_edid.c | |
| parent | 9048955748aa14b1dbf068ef3a9288ec15cabc66 (diff) | |
| download | linux-30388c6e48e62b2806b14552275f091e2f5adbf4.tar.bz2 | |
drm/radeon/kms/dce3+: add support for hw i2c using atom
Starting with DCE3 hardware, atom contains a general purpose
ProcessI2cChannelTransaction similar to ProcessAuxChannelTransaction.
Add an implementation using the atom tables for DCE3+ hardware.
This should be a little less CPU intensive than bit banging and
may work better in certain cases.
Enable it by setting the radeon hw_i2c module parameter to 1. E.g.,
radeon.hw_i2c=1
on the kernel command line in grub.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
0 files changed, 0 insertions, 0 deletions