[alsa-devel] AMD Carrizo HDMI audio
Hello Alex and Maruthi,
I'm trying to get HDMI audio working on a AMD CARRIZO laptop, which I believe need the ACP changes which got merged into Linux 4.6. But testing the v4.6 tag, amd_acp_hw_init() returns -ENODEV, because it succeeds the "if (acp_mode != ACP_MODE_I2S)" test in acp_hw.c. Does this mean this chip does not uses ACP, or is there anything else missing?
lspci shows me the following gfx/audio devices (I believe this is a dual-gpu machine):
00:01.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Device 9874 (rev c5) (prog-if 00 [VGA controller]) 00:01.1 Audio device: Advanced Micro Devices [AMD] nee ATI Device 9840 00:09.2 Audio device: Advanced Micro Devices [AMD] Device 157a 03:00.0 Display controller: Advanced Micro Devices [AMD] nee ATI Sun [Radeon HD 8600M Series] (rev ff)
Both amdgpu and radeon get automatically probed. Sorry if I'm missing something obvious here, I'm quite new to dual-gpu machines.
Thanks and best regards,
-- João Paulo Rechi Vita http://about.me/jprvita
-----Original Message----- From: João Paulo Rechi Vita [mailto:jprvita@gmail.com] Sent: Thursday, June 09, 2016 3:14 PM To: Alex Deucher; maruthi.srinivas.b@gmail.com Cc: dri-devel@lists.freedesktop.org; alsa-devel@alsa-project.org; Deucher, Alexander; Bayyavarapu, Maruthi; João Paulo Rechi Vita; linux@endlessm.com Subject: AMD Carrizo HDMI audio
Hello Alex and Maruthi,
I'm trying to get HDMI audio working on a AMD CARRIZO laptop, which I believe need the ACP changes which got merged into Linux 4.6. But testing the v4.6 tag, amd_acp_hw_init() returns -ENODEV, because it succeeds the "if (acp_mode != ACP_MODE_I2S)" test in acp_hw.c. Does this mean this chip does not uses ACP, or is there anything else missing?
Your system does not use ACP. It uses HDA audio. You'll need to use the new DAL display code which is not yet upstream for HDMI or DP audio support. You can find dal support on my freedesktop tree. E.g., https://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-4.7-wip-dal
Alex
On 9 June 2016 at 15:26, Deucher, Alexander Alexander.Deucher@amd.com wrote:
-----Original Message----- From: João Paulo Rechi Vita [mailto:jprvita@gmail.com] Sent: Thursday, June 09, 2016 3:14 PM To: Alex Deucher; maruthi.srinivas.b@gmail.com Cc: dri-devel@lists.freedesktop.org; alsa-devel@alsa-project.org; Deucher, Alexander; Bayyavarapu, Maruthi; João Paulo Rechi Vita; linux@endlessm.com Subject: AMD Carrizo HDMI audio
Hello Alex and Maruthi,
I'm trying to get HDMI audio working on a AMD CARRIZO laptop, which I believe need the ACP changes which got merged into Linux 4.6. But testing the v4.6 tag, amd_acp_hw_init() returns -ENODEV, because it succeeds the "if (acp_mode != ACP_MODE_I2S)" test in acp_hw.c. Does this mean this chip does not uses ACP, or is there anything else missing?
Your system does not use ACP. It uses HDA audio. You'll need to use the new DAL display code which is not yet upstream for HDMI or DP audio support. You can find dal support on my freedesktop tree. E.g., https://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-4.7-wip-dal
Thanks for such a quick answer! So that means no audio over HDMI/DP without DAL, right? Isn't any legacy code that can take care of that? I'll give it a try on your branch and report back if I have any problems.
Best regards,
-- João Paulo Rechi Vita http://about.me/jprvita
On 9 June 2016 at 15:32, João Paulo Rechi Vita jprvita@gmail.com wrote:
On 9 June 2016 at 15:26, Deucher, Alexander Alexander.Deucher@amd.com wrote:
-----Original Message----- From: João Paulo Rechi Vita [mailto:jprvita@gmail.com] Sent: Thursday, June 09, 2016 3:14 PM To: Alex Deucher; maruthi.srinivas.b@gmail.com Cc: dri-devel@lists.freedesktop.org; alsa-devel@alsa-project.org; Deucher, Alexander; Bayyavarapu, Maruthi; João Paulo Rechi Vita; linux@endlessm.com Subject: AMD Carrizo HDMI audio
Hello Alex and Maruthi,
I'm trying to get HDMI audio working on a AMD CARRIZO laptop, which I believe need the ACP changes which got merged into Linux 4.6. But testing the v4.6 tag, amd_acp_hw_init() returns -ENODEV, because it succeeds the "if (acp_mode != ACP_MODE_I2S)" test in acp_hw.c. Does this mean this chip does not uses ACP, or is there anything else missing?
Your system does not use ACP. It uses HDA audio. You'll need to use the new DAL display code which is not yet upstream for HDMI or DP audio support. You can find dal support on my freedesktop tree. E.g., https://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-4.7-wip-dal
Thanks for such a quick answer! So that means no audio over HDMI/DP without DAL, right? Isn't any legacy code that can take care of that? I'll give it a try on your branch and report back if I have any problems.
Still no sound with the branch you've pointed. Logs can be found here in case you're interested: https://gist.github.com/jprvita/7966532c7a4b67c74621c9374e20a418
-- João Paulo Rechi Vita http://about.me/jprvita
João Paulo Rechi Vita wrote:
Still no sound with the branch you've pointed. Logs can be found here in case you're interested: https://gist.github.com/jprvita/7966532c7a4b67c74621c9374e20a418
You could try 4.6-wip-dal
https://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-4.6-wip-dal
I don't know about Carrizo but my Tonga was Ok with that but not with 4.7
participants (3)
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Andy Furniss -
Deucher, Alexander -
João Paulo Rechi Vita