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

On Mon, Feb 24, 2020 at 03:58:13PM +0100, Jerome Brunet wrote:

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@baylibre.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 ...

Yeah, I think another type definition is needed here to distinguish 
between a single phandle+args and an array of phandle+args.

In any case,

Acked-by: Rob Herring <robh@kernel.org>

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