diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-04-22 09:42:07 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-04-23 18:03:59 -0400 |
| commit | 1586505a5db2b221a99feabe61199c2657e9ee23 (patch) | |
| tree | c9bc5bd27a94af33687896d33a4aad346d0c6f1a /drivers/gpu/drm/radeon/r600_hdmi.c | |
| parent | 46892caabe756228666d8d83aea5724d9557601a (diff) | |
drm/radeon: fix up audio dto programming for DCE2
Uses a different register than DCE3 asics.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/r600_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600_hdmi.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c index 2e15888d8307..47f180a79352 100644 --- a/drivers/gpu/drm/radeon/r600_hdmi.c +++ b/drivers/gpu/drm/radeon/r600_hdmi.c @@ -246,9 +246,18 @@ void r600_audio_set_dto(struct drm_encoder *encoder, u32 clock) * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator */ - WREG32(DCCG_AUDIO_DTO0_PHASE, (base_rate*50) & 0xffffff); - WREG32(DCCG_AUDIO_DTO0_MODULE, (clock*100) & 0xffffff); - WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */ + if (ASIC_IS_DCE3(rdev)) { + /* according to the reg specs, this should DCE3.2 only, but in + * practice it seems to cover DCE3.0 as well. + */ + WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 50); + WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100); + WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */ + } else { + /* according to the reg specs, this should be DCE2.0 and DCE3.0 */ + WREG32(AUDIO_DTO, AUDIO_DTO_PHASE(base_rate * 50) | + AUDIO_DTO_MODULE(clock * 100)); + } } /* |