On 16/8/23 18:03, Mark Brown wrote:
On Wed, Aug 16, 2023 at 05:49:06PM +0100, Richard Fitzgerald wrote:
From: Maciej Strozek <mstrozek@xxxxxxxxxxxxxxxxxxxxx>
Use a device property "cirrus,firmware-uid" to get the unique firmware
identifier instead of using ACPI _SUB.
There will not usually be a _SUB in Soundwire nodes. The ACPI can use a
_DSD section for custom properties.
There is also a need to support instantiating this driver using software
nodes. This is for systems where the CS35L56 is a back-end device and the
ACPI refers only to the front-end audio device - there will not be any ACPI
references to CS35L56.
Are there any existing systems (or might there be given that the driver
is in released kernels already) which rely on _SUB?
No. Nothing has been released with CS35L56.
