Hi, this is a patch set to add the support of drm_audio_component for AMD/ATI HDMI codecs. With the drm_audio_component, the HDMI/DP audio hotplug and ELD read-out can be achieved directly without the hardware access. The best point by that is that it makes the hotplug notification working even during runtime suspend. The support is totally optional and dynamic, hence it still works even if either HD-audio or DRM side isn't patched, and it'll fall back to the existing method. The current patch supports only radeon and a part of amdgpu; the DC support isn't included yet. Takashi === Takashi Iwai (4): ALSA: hda/hdmi: Use single mutex unlock in error paths ALSA: hda/hdmi: Allow audio component for AMD/ATI HDMI drm/radeon: Add audio component support drm/amdgpu: Add audio component support drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/amd/amdgpu/Makefile | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 + drivers/gpu/drm/amd/amdgpu/amdgpu_audio.c | 97 ++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 3 + drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 6 + drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 6 + drivers/gpu/drm/amd/amdgpu/dce_v6_0.c | 6 + drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 6 + drivers/gpu/drm/radeon/radeon.h | 3 + drivers/gpu/drm/radeon/radeon_audio.c | 79 ++++++++ sound/pci/hda/patch_hdmi.c | 209 +++++++++++++++++----- 12 files changed, 374 insertions(+), 49 deletions(-) create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_audio.c -- 2.18.0
