[PATCH 2/8] ASoC: Intel: avs: Introduce PCM power management routines

[Cezary Rojewski]

On 2022-10-19 8:02 PM, Pierre-Louis Bossart wrote:

...

> This is clearly going to conflict with my own rename/move changes in
> "ALSA/ASoC: hda: move SPIB/DRMS functionality from ext layer"
> 
> The SPIB and DRMS handling are not DSP-specific and should be handled in
> the 'generic' sound/hda layer. In theory the HDaudio legacy driver
> should have used those capabilities.
> 
> It should be a simple rebase though for this patch.

No problem with waiting for the series you mention to be merged first. 
Will rebase once it's done.

Also, that's a good point in regard to DRSM. This could indeed be added 
into common sound/hda lib. Something like below perhaps?


int snd_hdac_stream_resume(struct hdac_stream *azx_dev)
{
         struct hdac_bus *bus = azx_dev->bus;
         u32 mask, reg;
         int ret;

         mask = 1 << azx_dev->index;

         ret = readb_poll_timeout(bus->drsmcap + AZX_REG_DRSM_CTL, reg, 
!(reg & mask), 250, 2000);
         if (ret)
                 dev_dbg(bus->dev, "polling RSM 0x%08x failed: %d\n", 
mask, ret);
         return ret;
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_resume);