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| author | Ingo Molnar <mingo@kernel.org> | 2016-01-29 11:41:18 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-01-29 11:41:18 +0300 |
| commit | 76b36fa896a2db64582690e085f36adc76604134 (patch) | |
| tree | 78007f123ead6f96cdee6ba98ac3c289c706cc39 /drivers/gpu/drm/radeon/dce6_afmt.c | |
| parent | 14365449b6ce34cf6a3040ff8ebbb39d89d67159 (diff) | |
| parent | 92e963f50fc74041b5e9e744c330dca48e04f08d (diff) | |
| download | linux-76b36fa896a2db64582690e085f36adc76604134.tar.xz | |
Merge tag 'v4.5-rc1' into x86/asm, to refresh the branch before merging new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/radeon/dce6_afmt.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/dce6_afmt.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c index 752072771388..6bfc46369db1 100644 --- a/drivers/gpu/drm/radeon/dce6_afmt.c +++ b/drivers/gpu/drm/radeon/dce6_afmt.c @@ -301,6 +301,22 @@ void dce6_dp_audio_set_dto(struct radeon_device *rdev, * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator */ if (ASIC_IS_DCE8(rdev)) { + unsigned int div = (RREG32(DENTIST_DISPCLK_CNTL) & + DENTIST_DPREFCLK_WDIVIDER_MASK) >> + DENTIST_DPREFCLK_WDIVIDER_SHIFT; + + if (div < 128 && div >= 96) + div -= 64; + else if (div >= 64) + div = div / 2 - 16; + else if (div >= 8) + div /= 4; + else + div = 0; + + if (div) + clock = rdev->clock.gpupll_outputfreq * 10 / div; + WREG32(DCE8_DCCG_AUDIO_DTO1_PHASE, 24000); WREG32(DCE8_DCCG_AUDIO_DTO1_MODULE, clock); } else { |