[RFC PATCH 2/2] ASoC: select sysclk clock from mlck clock provider in wm8994 driver

Hello Mark,

On 12/20/2017 04:50 PM, Mark Brown wrote:

On Wed, Dec 20, 2017 at 12:42:10PM +0000, Olivier MOYSAN wrote:

quoted

As a generic machine, simple or audio graph cards are not able to manage
codec clock muxing.
If we exclude the management of muxing through codec controls,
the remaining solution is to handle it fully through clock framework.
The current patch only supports a limited range of muxing capabilities
of the codec.
To have a full management of the muxing, I think it is necessary to add
a device tree node for each codec interface and to define an aif clock
in these nodes.
Then parent clock assignment of these aif clocks would allow to handle
the muxing.

Controlling clocking through a clock API binding would be good, yes.
That'd solve a bunch of other problems with use of multi-purpose clocks
for audio as well.

Thanks for your feedback. I will implement this in a patch v2.

BRs