linux-kernel - [PATCH RFC v2 2/6] ASoC: dt-bindings: qcom,sm8250: Add clocks properties for I2S

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Message-Id: <20251008-topic-sm8x50-next-hdk-i2s-v2-2-6b7d38d4ad5e@linaro.org>
Date: Wed, 08 Oct 2025 20:56:49 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Srinivas Kandagatla <srini@...nel.org>, 
 Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-sound@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH RFC v2 2/6] ASoC: dt-bindings: qcom,sm8250: Add clocks
 properties for I2S

In order to describe the block and master clock of each I2S bus, add
the first 5 I2S busses clock entries.

The names (primary, secondary, tertiarty, quaternary, quinary, senary)
uses the LPASS clock naming which were used for a long time on Qualcomm
LPASS firmware interfaces.

Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 .../devicetree/bindings/sound/qcom,sm8250.yaml      | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
index 8ac91625dce5ccba5c5f31748c36296b12fac1a6..d1420d138b7ed8152aa53769c4d495e1674275e6 100644
--- a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
@@ -64,6 +64,27 @@ properties:
     $ref: /schemas/types.yaml#/definitions/string
     description: User visible long sound card name
 
+  clocks:
+    minItems: 2
+    maxItems: 12
+
+  clock-names:
+    minItems: 2
+    items:
+      # mclk is the I2S Master Clock, mi2s the I2S Bit Clock
+      - const: primary-mi2s
+      - const: primary-mclk
+      - const: secondary-mi2s
+      - const: secondary-mclk
+      - const: tertiary-mi2s
+      - const: tertiary-mclk
+      - const: quaternary-mi2s
+      - const: quaternary-mclk
+      - const: quinary-mi2s
+      - const: quinary-mclk
+      - const: senary-mi2s
+      - const: senary-mclk
+
 patternProperties:
   ".*-dai-link$":
     description:

-- 
2.34.1