Re: [alsa-devel] [PATCH] soundwire: intel: report slave_ids for each link to SOF driver

From: Pierre-Louis Bossart
Date: Tue Jan 14 2020 - 12:48:28 EST




On 1/14/20 12:26 AM, Vinod Koul wrote:
On 10-01-20, 16:31, Pierre-Louis Bossart wrote:


On 1/10/20 4:00 PM, Pierre-Louis Bossart wrote:
From: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>

The existing link_mask flag is no longer sufficient to detect the
hardware and identify which topology file and a machine driver to load.

By reporting the slave_ids exposed in ACPI tables, the parent SOF
driver will be able to compare against a set of static configurations.

This patch only adds the interface change, the functionality is added
in future patches.

Vinod, this patch would need to be shared as an immutable tag for Mark, once
this is done I can share the SOF parts that make use of the information (cf.
https://github.com/thesofproject/linux/pull/1692 for reference)

Sorry we missed this in the earlier interface changes, we didn't think we
would have so many hardware variations so quickly.

do you want the tag now..? I can provide... We are already in -rc6
and i will send PR to greg later this week...

yes please, I'd like to send the SOF patches this week as well.