Re: [PATCH] i2c: add binding to mark a bus as SMBus

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On Wed, Jul 01, 2020 at 11:48:30PM +0200, Wolfram Sang wrote:
> SMBus is largely compatible with I2C but there are some specifics. In
> case we need them on a bus, we can now use this new binding.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/i2c/i2c.txt | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt
> index 438ae123107e..d1f8cf3bd236 100644
> --- a/Documentation/devicetree/bindings/i2c/i2c.txt
> +++ b/Documentation/devicetree/bindings/i2c/i2c.txt
> @@ -77,6 +77,11 @@ wants to support one of the below features, it should adapt these bindings.
>  	this information to detect a stalled bus more reliably, for example.
>  	Can not be combined with 'multi-master'.
>  
> +- smbus

This is a boolean?

> +	states that additional SMBus restrictions and features apply to this bus.
> +	Examples of features are SMBusHostNotify and SMBusAlert. Examples of

Do features need to be enumerated separately?

> +	restrictions are more reserved addresses and timeout definitions.
> +
>  Required properties (per child device)
>  --------------------------------------
>  
> -- 
> 2.27.0
> 



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