On Tue, Jan 15, 2019 at 10:58 PM Rob Herring robh@kernel.org wrote:
On Tue, Jan 08, 2019 at 01:05:51PM +0000, Viorel Suman wrote:
Add the DT binding documentation for Audio Mixer machine driver.
Signed-off-by: Viorel Suman viorel.suman@nxp.com
.../devicetree/bindings/sound/imx-audmix.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/imx-audmix.txt
diff --git a/Documentation/devicetree/bindings/sound/imx-audmix.txt b/Documentation/devicetree/bindings/sound/imx-audmix.txt new file mode 100644 index 0000000..6ac1230 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/imx-audmix.txt @@ -0,0 +1,24 @@ +NXP Audio Mixer (AUDMIX) machine driver.
+Required properties: +===================================
- compatible : Compatible list, contains "fsl,imx-audmix"
- model : Short audio card description.
- dais : Must contain a list of phandles to AUDMIX connected
DAIs. The current implementation requires two phandlesto SAI interfaces to be provided, the first SAI in thelist being used to route the AUDMIX output.
- audmix-controller : Must contain the phandle to the AUDMIX device node.
I don't think you need 2 nodes for this as this one is just a virtual device. Just add the dais property to the audmix node.
Hi Rob,
Thanks for the suggestion. We want to understand better the reasoning behind this.
Is it because dais are physically connected to AUDMIX node?
In ALSA we usually add all the components inside the associated machine driver virtual node.
thanks, Daniel.