On 9 June 2016 at 15:32, João Paulo Rechi Vita <jprvita at gmail.com> wrote: > On 9 June 2016 at 15:26, Deucher, Alexander <Alexander.Deucher at amd.com> > wrote: >>> -----Original Message----- >>> From: João Paulo Rechi Vita [mailto:jprvita at gmail.com] >>> Sent: Thursday, June 09, 2016 3:14 PM >>> To: Alex Deucher; maruthi.srinivas.b at gmail.com >>> Cc: dri-devel at lists.freedesktop.org; alsa-devel at alsa-project.org; >>> Deucher, >>> Alexander; Bayyavarapu, Maruthi; João Paulo Rechi Vita; >>> linux at 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
