[alsa-devel] [PATCH 1/2] ALSA: hda - Force buffer alignment for Haswell HDMI controllers

David Henningsson david.henningsson at canonical.com
Wed Nov 6 10:42:02 CET 2013

On 11/06/2013 09:19 AM, Takashi Iwai wrote:
> At Wed, 06 Nov 2013 09:14:47 +0100,
> David Henningsson wrote:
>> On 11/05/2013 06:00 PM, Takashi Iwai wrote:
>>> Haswell HDMI audio controllers seem to get stuck when unaligned buffer
>>> size is used.  Let's enable the buffer alignment for the corresponding
>>> entries.
>>> Since AZX_DCAPS_INTEL_PCH contains AZX_DCAPS_BUFSIZE that disables the
>>> buffer alignment forcibly, define AZX_DCAPS_INTEL_HASWELL and put the
>>> necessary AZX_DCAPS bits there.
>> A name question - haswell for me is both the HDMI controller and the
>> controller for analog codecs.
> The analog codecs are on LynxPoint or such, not directly connected to
> Haswell CPU.

Fair enough, I stand corrected. I guess I just usually bunk the entire
platform together and call it "Haswell".

David Henningsson, Canonical Ltd.

More information about the Alsa-devel mailing list