[PATCH 1/7] dt-bindings: soundwire: qcom: add 16-bit sample interval

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The port sample interval was always 16-bit, split into low and high
bytes.  This split was unnecessary, although harmless for older devices
because all of them used only lower byte (so values < 0xff).  With
support for Soundwire controller on Qualcomm SM8550 and its devices,
both bytes will be used, thus add a new 'qcom,ports-sinterval' property
to allow 16-bit sample intervals.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
 .../bindings/soundwire/qcom,soundwire.yaml    | 22 +++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/soundwire/qcom,soundwire.yaml b/Documentation/devicetree/bindings/soundwire/qcom,soundwire.yaml
index 3efdc192ab01..e2acfd09fb22 100644
--- a/Documentation/devicetree/bindings/soundwire/qcom,soundwire.yaml
+++ b/Documentation/devicetree/bindings/soundwire/qcom,soundwire.yaml
@@ -85,7 +85,7 @@ properties:
   qcom,ports-sinterval-low:
     $ref: /schemas/types.yaml#/definitions/uint8-array
     description:
-      Sample interval low of each data port.
+      Sample interval (only lowest byte) of each data port.
       Out ports followed by In ports. Used for Sample Interval calculation.
       Value of 0xff indicates that this option is not implemented
       or applicable for the respective data port.
@@ -93,6 +93,19 @@ properties:
     minItems: 3
     maxItems: 8
 
+  qcom,ports-sinterval:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    description:
+      Sample interval of each data port.
+      Out ports followed by In ports. Used for Sample Interval calculation.
+      Value of 0xffff indicates that this option is not implemented
+      or applicable for the respective data port.
+      More info in MIPI Alliance SoundWire 1.0 Specifications.
+    minItems: 3
+    maxItems: 8
+    items:
+      maximum: 0xffff
+
   qcom,ports-offset1:
     $ref: /schemas/types.yaml#/definitions/uint8-array
     description:
@@ -218,10 +231,15 @@ required:
   - '#size-cells'
   - qcom,dout-ports
   - qcom,din-ports
-  - qcom,ports-sinterval-low
   - qcom,ports-offset1
   - qcom,ports-offset2
 
+oneOf:
+  - required:
+      - qcom,ports-sinterval
+  - required:
+      - qcom,ports-sinterval-low
+
 additionalProperties: false
 
 examples:
-- 
2.34.1




[Index of Archives]     [ALSA User]     [Linux Audio Users]     [Pulse Audio]     [Kernel Archive]     [Asterisk PBX]     [Photo Sharing]     [Linux Sound]     [Video 4 Linux]     [Gimp]     [Yosemite News]

  Powered by Linux