Re: [PATCH 6/9] ASoC: Intel: sst: Free streams on suspend, re-alloc on resume

From: Hans de Goede
Date: Mon Feb 19 2018 - 09:02:13 EST


Hi,

On 19-02-18 14:51, Andy Shevchenko wrote:
On Mon, Feb 19, 2018 at 12:01 AM, Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
The Bay Trail SST-DSP firmware version looses track of all streams over a
suspend/resume, failing any attempts to resume and/or free streams, with
a SST_ERR_INVALID_STREAM_ID error.

This commit adds support for free-ing the streams on suspend and
re-allocating them on resume, fixing suspend/resume issues on devices
using this firmware version.

This new behavior gets triggered by a new flag in sst_platform_info which
only gets set on Bay Trail platforms.

This has been tested on the following devices:
-Asus T100TA, Bay Trail + ALC5642 codec
-Ployer MOMO7W, Bay Trail CR + ALC5652 codec


/* Cherryview (Cherrytrail and Braswell) uses same mrfld dpcm fw as Baytrail,
- * so pdata is same as Baytrail.
+ * so pdata is same as Baytrail, minus the streams_lost_on_suspend quirk.
*/

A nit, perhaps to fix multi line comment style as well?

The is the net/* style of multi-line comments which is used in quite a few
places in the sounds/soc dir. I think both styles are accepted under sound/soc?

Regards,

Hans