linux-kernel - [PATCH v2 1/2] dt-bindings: stm32: dfsdm: update audio properties

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Date:   Tue, 20 Oct 2020 17:57:08 +0200
From:   Olivier Moysan <olivier.moysan@...com>
To:     <lgirdwood@...il.com>, <broonie@...nel.org>, <perex@...ex.cz>,
        <tiwai@...e.com>, <alexandre.torgue@...com>, <robh@...nel.org>,
        <mark.rutland@....com>, <olivier.moysan@...com>
CC:     <alsa-devel@...a-project.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-kernel@...r.kernel.org>, <arnaud.pouliquen@...com>
Subject: [PATCH v2 1/2] dt-bindings: stm32: dfsdm: update audio properties

- Add missing compatible property in audio node.
- Remove obsolete "st,stm32-dfsdm-pdm" compatible.
- Remove useless comment in adc io-channels description.

Signed-off-by: Olivier Moysan <olivier.moysan@...com>
---
 .../devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml    | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml b/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml
index d61bc011e820..6f2398cdc82d 100644
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml
@@ -199,8 +199,6 @@ patternProperties:
               description:
                 From common IIO binding. Used to pipe external sigma delta
                 modulator or internal ADC output to DFSDM channel.
-                This is not required for "st,stm32-dfsdm-pdm" compatibility as
-                PDM microphone is binded in Audio DT node.
 
           required:
             - io-channels
@@ -235,6 +233,10 @@ patternProperties:
               description: child node
 
               properties:
+                compatible:
+                  enum:
+                    - st,stm32h7-dfsdm-dai
+
                 "#sound-dai-cells":
                   const: 0
 
@@ -244,6 +246,7 @@ patternProperties:
                     modulator or internal ADC output to DFSDM channel.
 
               required:
+                - compatible
                 - "#sound-dai-cells"
                 - io-channels
 
-- 
2.17.1