diff options
| author | Slava Grigorev <slava.grigorev@amd.com> | 2014-12-05 13:38:31 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2015-01-22 10:42:10 -0500 |
| commit | a85d682a6578a3bd02c95afb4ef527fa0897bb69 (patch) | |
| tree | f701ab1882ec512584f0b7a5b21575394c0f421c /drivers/gpu/drm/radeon/dce6_afmt.c | |
| parent | 7991d6650117064ae1d2b215b5cbb4112711ed5e (diff) | |
| download | linux-a85d682a6578a3bd02c95afb4ef527fa0897bb69.tar.gz linux-a85d682a6578a3bd02c95afb4ef527fa0897bb69.tar.bz2 linux-a85d682a6578a3bd02c95afb4ef527fa0897bb69.zip | |
radeon/audio: consolidate audio_set_dto() functions
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/dce6_afmt.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/dce6_afmt.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c index c4ff60f005d2..1c870060c29b 100644 --- a/drivers/gpu/drm/radeon/dce6_afmt.c +++ b/drivers/gpu/drm/radeon/dce6_afmt.c @@ -248,3 +248,42 @@ void dce6_audio_enable(struct radeon_device *rdev, WREG32_ENDPOINT(pin->offset, AZ_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, enable_mask ? AUDIO_ENABLED : 0); } + +void dce6_hdmi_audio_set_dto(struct radeon_device *rdev, + struct radeon_crtc *crtc, unsigned int clock) +{ + /* Two dtos; generally use dto0 for HDMI */ + u32 value = 0; + + if (crtc) + value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id); + + WREG32(DCCG_AUDIO_DTO_SOURCE, value); + + /* Express [24MHz / target pixel clock] as an exact rational + * 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, 24000); + WREG32(DCCG_AUDIO_DTO0_MODULE, clock); +} + +void dce6_dp_audio_set_dto(struct radeon_device *rdev, + struct radeon_crtc *crtc, unsigned int clock) +{ + /* Two dtos; generally use dto1 for DP */ + u32 value = 0; + value |= DCCG_AUDIO_DTO_SEL; + + if (crtc) + value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id); + + WREG32(DCCG_AUDIO_DTO_SOURCE, value); + + /* Express [24MHz / target pixel clock] as an exact rational + * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE + * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator + */ + WREG32(DCCG_AUDIO_DTO1_PHASE, 24000); + WREG32(DCCG_AUDIO_DTO1_MODULE, clock); +} |