diff options
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); +} |