Re: [PATCH 2/3] dt-bindings: display: sii902x: Change audio mclk binding

[Jyri Sarha]

On 02/07/2019 18:47, Olivier Moysan wrote:
> As stated in SiL9022/24 datasheet, master clock is not required for I2S.
> Make mclk property optional in DT bindings.
> 
> Fixes: 3f18021f43a3 ("dt-bindings: display: sii902x: Add HDMI audio bindings")
> 
> Signed-off-by: Olivier Moysan <olivier.moysan@xxxxxx>

Looking the specs again it looks like the mclk is requred for sii9020,
but not for sii9022 and sii9024.

So I guess it is fine to accept the configurations without the mclk.

Reviewed-by: Jyri Sarha <jsarha@xxxxxx>

> ---
>  Documentation/devicetree/bindings/display/bridge/sii902x.txt | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/sii902x.txt b/Documentation/devicetree/bindings/display/bridge/sii902x.txt
> index 2df44b7d3821..6e14e087c0d0 100644
> --- a/Documentation/devicetree/bindings/display/bridge/sii902x.txt
> +++ b/Documentation/devicetree/bindings/display/bridge/sii902x.txt
> @@ -26,9 +26,8 @@ Optional properties:
>  	- clocks: phandle and clock specifier for each clock listed in
>             the clock-names property
>  	- clock-names: "mclk"
> -	   Describes SII902x MCLK input. MCLK is used to produce
> -	   HDMI audio CTS values. This property is required if
> -	   "#sound-dai-cells"-property is present. This property follows
> +	   Describes SII902x MCLK input. MCLK can be used to produce
> +	   HDMI audio CTS values. This property follows
>  	   Documentation/devicetree/bindings/clock/clock-bindings.txt
>  	   consumer binding.
>  
> 


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