linux-kernel - [PATCH 1/9] ASoC: meson: gx-card: fix sound-dai dt schema

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Date:   Mon, 24 Feb 2020 15:58:13 +0100
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>
Cc:     Jerome Brunet <jbrunet@...libre.com>, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-amlogic@...ts.infradead.org,
        Kevin Hilman <khilman@...libre.com>
Subject: [PATCH 1/9] ASoC: meson: gx-card: fix sound-dai dt schema

There is a fair amount of warnings when running 'make dtbs_check' with
amlogic,gx-sound-card.yaml.

Ex:
arch/arm64/boot/dts/amlogic/meson-gxm-q200.dt.yaml: sound: dai-link-0:sound-dai:0:1: missing phandle tag in 0
arch/arm64/boot/dts/amlogic/meson-gxm-q200.dt.yaml: sound: dai-link-0:sound-dai:0:2: missing phandle tag in 0
arch/arm64/boot/dts/amlogic/meson-gxm-q200.dt.yaml: sound: dai-link-0:sound-dai:0: [66, 0, 0] is too long

The reason is that the sound-dai phandle provided has cells, and in such
case the schema should use 'phandle-array' instead of 'phandle', even if
the property expects a single phandle.

Fixes: fd00366b8e41 ("ASoC: meson: gx: add sound card dt-binding documentation")
Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
---
 Hi Mark,

 The statement above is based on this LKML discussion I found:
 https://lkml.org/lkml/2019/9/30/382

 To be honest, I don't really get why the consumer should know whether
 the phandle will have cells or not. AFAIK, the consumer does not care
 about this ...

 .../devicetree/bindings/sound/amlogic,gx-sound-card.yaml      | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml b/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml
index fb374c659be1..a48222e8cd08 100644
--- a/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml
+++ b/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml
@@ -57,7 +57,7 @@ patternProperties:
           rate
 
       sound-dai:
-        $ref: /schemas/types.yaml#/definitions/phandle
+        $ref: /schemas/types.yaml#/definitions/phandle-array
         description: phandle of the CPU DAI
 
     patternProperties:
@@ -71,7 +71,7 @@ patternProperties:
 
         properties:
           sound-dai:
-            $ref: /schemas/types.yaml#/definitions/phandle
+            $ref: /schemas/types.yaml#/definitions/phandle-array
             description: phandle of the codec DAI
 
         required:
-- 
2.24.1