diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-11-27 12:10:35 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-06-27 19:15:46 -0400 |
| commit | 65676d06f5b0b500934e59117bae4662c089c733 (patch) | |
| tree | 68528c561a349e7419ab822b596a211be6f65362 /drivers/gpu/drm/radeon/sumo_dpm.c | |
| parent | d70229f704474b2932e03367a528773e336f6205 (diff) | |
drm/radeon/dpm: let atom control display phy powergating
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/sumo_dpm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/sumo_dpm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/sumo_dpm.c b/drivers/gpu/drm/radeon/sumo_dpm.c index 7ab60068396e..69792e4ac1ce 100644 --- a/drivers/gpu/drm/radeon/sumo_dpm.c +++ b/drivers/gpu/drm/radeon/sumo_dpm.c @@ -813,6 +813,12 @@ static void sumo_program_bootup_state(struct radeon_device *rdev) void sumo_take_smu_control(struct radeon_device *rdev, bool enable) { +/* This bit selects who handles display phy powergating. + * Clear the bit to let atom handle it. + * Set it to let the driver handle it. + * For now we just let atom handle it. + */ +#if 0 u32 v = RREG32(DOUT_SCRATCH3); if (enable) @@ -821,6 +827,7 @@ void sumo_take_smu_control(struct radeon_device *rdev, bool enable) v &= 0xFFFFFFFB; WREG32(DOUT_SCRATCH3, v); +#endif } static void sumo_enable_sclk_ds(struct radeon_device *rdev, bool enable) |