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| author | Alex Deucher <alexander.deucher@amd.com> | 2015-04-07 10:20:49 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2015-04-27 09:54:56 -0400 |
| commit | 38aef1549b18539eaecd804383a6ccb6588a9ce1 (patch) | |
| tree | 72a406d7e107d9d9c1b3a98c7212cc3d774ee426 /drivers/gpu/drm/radeon/evergreen_hdmi.c | |
| parent | 0f55db36d49d45b80eff0c0a2a498766016f458b (diff) | |
| download | linux-38aef1549b18539eaecd804383a6ccb6588a9ce1.tar.gz | |
drm/radeon: only enable audio streams if the monitor supports it
Selectively enable which packets we send based on monitor caps.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreen_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen_hdmi.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c index 9e1cd0cfcd55..0926739c9fa7 100644 --- a/drivers/gpu/drm/radeon/evergreen_hdmi.c +++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c @@ -398,13 +398,23 @@ void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable) return; if (enable) { - WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset, - HDMI_AVI_INFO_SEND | /* enable AVI info frames */ - HDMI_AVI_INFO_CONT | /* required for audio info values to be updated */ - HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */ - HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */ - WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset, - AFMT_AUDIO_SAMPLE_SEND); + struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); + + if (drm_detect_monitor_audio(radeon_connector_edid(connector))) { + WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset, + HDMI_AVI_INFO_SEND | /* enable AVI info frames */ + HDMI_AVI_INFO_CONT | /* required for audio info values to be updated */ + HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */ + HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */ + WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset, + AFMT_AUDIO_SAMPLE_SEND); + } else { + WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset, + HDMI_AVI_INFO_SEND | /* enable AVI info frames */ + HDMI_AVI_INFO_CONT); /* required for audio info values to be updated */ + WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset, + ~AFMT_AUDIO_SAMPLE_SEND); + } } else { WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset, ~AFMT_AUDIO_SAMPLE_SEND); @@ -423,11 +433,12 @@ void evergreen_dp_enable(struct drm_encoder *encoder, bool enable) struct radeon_device *rdev = dev->dev_private; struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; + struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); if (!dig || !dig->afmt) return; - if (enable) { + if (enable && drm_detect_monitor_audio(radeon_connector_edid(connector))) { struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); struct radeon_connector *radeon_connector = to_radeon_connector(connector); struct radeon_connector_atom_dig *dig_connector; |