From 8d57d51bac3f44ff17816b1e5a74ddaa6f5de211 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 25 Sep 2013 12:04:37 -0400 Subject: [PATCH] drm/radeon: fix hdmi audio on DCE3.0/3.1 asics These asics don't seem to use a mix of the DCE2.x and DCE3.2 audio interfaces despite what the register spec says. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=69729 https://bugs.freedesktop.org/show_bug.cgi?id=69671 Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/r600_hdmi.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c index f443010..b0fa600 100644 --- a/drivers/gpu/drm/radeon/r600_hdmi.c +++ b/drivers/gpu/drm/radeon/r600_hdmi.c @@ -257,10 +257,7 @@ 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 */ - 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. - */ + if (ASIC_IS_DCE32(rdev)) { if (dig->dig_encoder == 0) { dto_cntl = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK; dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio); @@ -276,8 +273,21 @@ void r600_audio_set_dto(struct drm_encoder *encoder, u32 clock) WREG32(DCCG_AUDIO_DTO1_MODULE, dto_modulo); WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */ } + } else if (ASIC_IS_DCE3(rdev)) { + /* according to the reg specs, this should DCE3.2 only, but in + * practice it seems to cover DCE3.0/3.1 as well. + */ + if (dig->dig_encoder == 0) { + WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 100); + WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100); + WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */ + } else { + WREG32(DCCG_AUDIO_DTO1_PHASE, base_rate * 100); + WREG32(DCCG_AUDIO_DTO1_MODULE, clock * 100); + WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */ + } } else { - /* according to the reg specs, this should be DCE2.0 and DCE3.0 */ + /* according to the reg specs, this should be DCE2.0 and DCE3.0/3.1 */ WREG32(AUDIO_DTO, AUDIO_DTO_PHASE(base_rate / 10) | AUDIO_DTO_MODULE(clock / 10)); } -- 1.8.3.1