[alsa-devel] [PATCH 1/2] ALSA: hda - add PCI IDs for Intel Braswell

[Yang, Libin]

Hi Takashi,

> -----Original Message-----
> From: Takashi Iwai [mailto:tiwai at suse.de]
> Sent: Thursday, July 24, 2014 9:21 PM
> To: Yang, Libin
> Cc: 'alsa-devel at alsa-project.org'; Lin, Mengdong
> Subject: Re: [PATCH 1/2] ALSA: hda - add PCI IDs for Intel Braswell
> 
> At Thu, 24 Jul 2014 12:59:55 +0000,
> Yang, Libin wrote:
> >
> > Hi Takashi,
> >
> > After checking the HW, the HDMI audio codec doesn't support EPSS. If we
> force it to support runtime PM, there is risk. Besides, as the codec doesn't
> support EPSS, if we want to support runtime PM, simply add the
> AZX_DCAPS_PM_RUNTIME flag doesn't help. We must think out a method
> to ensure the driver enter pm runtime even the codec doesn't support.
> 
> Wait, is the controller for the generic codecs or dedicated to the embedded
> HDMI?  In the latter case, AZX_DCAPS_INTEL_PCM_NOPM is anyway wrong.
> For HDMI, we use different flags.

OK, I see. I will add the flags and have a test.

> 
> 
> Takashi