On Mon, Nov 11, 2019 at 05:18:22PM +0800, Shengjiu Wang wrote:
Add compatible string "fsl,imx8qm-asrc" for imx8qm platform.
There are two asrc modules in imx8qm, the clock mapping is different for each other, so add new property "fsl,asrc-clk-map" to distinguish them.
What's the clock mapping?
Signed-off-by: Shengjiu Wang shengjiu.wang@nxp.com
changes in v2 -none
changes in v3 -use only one compatible string "fsl,imx8qm-asrc", -add new property "fsl,asrc-clk-map".
Documentation/devicetree/bindings/sound/fsl,asrc.txt | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/sound/fsl,asrc.txt b/Documentation/devicetree/bindings/sound/fsl,asrc.txt index 1d4d9f938689..02edab7cf3e0 100644 --- a/Documentation/devicetree/bindings/sound/fsl,asrc.txt +++ b/Documentation/devicetree/bindings/sound/fsl,asrc.txt @@ -8,7 +8,8 @@ three substreams within totally 10 channels.
Required properties:
- compatible : Contains "fsl,imx35-asrc" or "fsl,imx53-asrc".
- compatible : Contains "fsl,imx35-asrc", "fsl,imx53-asrc",
"fsl,imx8qm-asrc".
- reg : Offset and length of the register set for the device.
@@ -35,6 +36,13 @@ Required properties:
- fsl,asrc-width : Defines a mutual sample width used by DPCM Back Ends.
- fsl,asrc-clk-map : Defines clock map used in driver. which is required
by imx8qm/imx8qxp platform<0> - select the map for asrc0 in imx8qm<1> - select the map for asrc1 in imx8qm<2> - select the map for asrc0 in imx8qxp<3> - select the map for asrc1 in imx8qxp
Is this 4 modes of the h/w or just selecting 1 of 4 settings defined in the driver? How does one decide? This seems strange.
imx8qxp should perhaps be a separate compatible. Then you only need 1 of 2 modes...
Rob