[PATCH 1/4] dt-bindings: sound: fsl, asrc: add properties to select in/out clocks
From: Arnaud Ferraris <hidden>
Date: 2020-07-02 14:23:07
Also in:
alsa-devel, linux-devicetree, lkml
Subsystem:
open firmware and flattened device tree bindings, sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Liam Girdwood, Mark Brown, Linus Torvalds
The ASRC peripheral accepts a wide range of input and output clocks, but no mechanism exists at the moment to define those as they are currently hardcoded in the driver. This commit adds new properties allowing selection of arbitrary input and output clocks. Signed-off-by: Arnaud Ferraris <redacted> --- Documentation/devicetree/bindings/sound/fsl,asrc.txt | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/fsl,asrc.txt b/Documentation/devicetree/bindings/sound/fsl,asrc.txt
index 998b4c8a7f78..e26ce9bad617 100644
--- a/Documentation/devicetree/bindings/sound/fsl,asrc.txt
+++ b/Documentation/devicetree/bindings/sound/fsl,asrc.txt@@ -55,6 +55,12 @@ Optional properties: Ends, which can replace the fsl,asrc-width. The value is 2 (S16_LE), or 6 (S24_LE). + - fsl,asrc-input-clock : Input clock ID, defaults to INCLK_NONE + (see enum asrc_inclk in fsl_asrc.h) + + - fsl,asrc-output-clock : Output clock ID, defaults to OUTCLK_ASRCK1_CLK + (see enum asrc_outclk in fsl_asrc.h) + Example: asrc: asrc@2034000 {
@@ -77,4 +83,6 @@ asrc: asrc@2034000 { "txa", "txb", "txc"; fsl,asrc-rate = <48000>; fsl,asrc-width = <16>; + fsl,asrc-input-clock = <0x3>; + fsl,asrc-output-clock = <0xf>; };
--
2.27.0