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[v2,02/13] ASoC: dt-bindings: davinci-mcbsp: Add optional clock

Message ID 20240402071213.11671-3-bastien.curutchet@bootlin.com (mailing list archive)
State Accepted
Commit 6a4b6b062a5917d611c1bde7189c5147cf0ca832
Headers show
Series ASoC: ti: davinci-i2s: Add features to McBSP driver | expand

Commit Message

Bastien Curutchet April 2, 2024, 7:12 a.m. UTC 
The McBSP uses an internal sample rate generator to provide bit clock
or frame clock. This sample rate generator can be programmed to be
driven by McBSP's internal clock source or by an external clock source
(located on CLKS pin). The external clock source is not described in
the bindings.

Add an optional clock item that allows to select an external clock as
sample rate generator's input.

Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/sound/davinci-mcbsp.yaml | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/sound/davinci-mcbsp.yaml b/Documentation/devicetree/bindings/sound/davinci-mcbsp.yaml
index 139b594dd192..0c2b1936c6a1 100644
--- a/Documentation/devicetree/bindings/sound/davinci-mcbsp.yaml
+++ b/Documentation/devicetree/bindings/sound/davinci-mcbsp.yaml
@@ -50,12 +50,16 @@  properties:
       - const: tx
 
   clocks:
+    minItems: 1
     items:
       - description: functional clock
+      - description: external input clock for sample rate generator.
 
   clock-names:
+    minItems: 1
     items:
       - const: fck
+      - const: clks
 
   power-domains:
     maxItems: 1