Re: [PATCH v2] ARM: dts: dra7xx: Fix compatible string for PCF8575 chip

[Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org>]

On 16/03/16 18:52, Ben Hutchings wrote:
> The binding definition for the PCF857x GPIO expanders doesn't mention
> a "ti,pcf8575" compatible string.  This is apparently because TI is
> only a second source - there is no functional difference between
> PCF8575 chips manufactured by TI and NXP, and the same board might be
> populated with either depending on availability.
> 
> This is not a problem in practice because the I2C core uses
> of_modalias_node() before matching drivers and this strips the
> manufacturer name.
> 
> Signed-off-by: Ben Hutchings <ben.hutchings-4yDnlxn2s6sWdaTGBSpHTA@public.gmane.org>

Acked-by: Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org>

cheers,
-roger

> ---
> v2: Correct the claim that this is a practical problem.
> 
>  arch/arm/boot/dts/dra7-evm.dts  | 2 +-
>  arch/arm/boot/dts/dra72-evm.dts | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
> index cfc24e52244e..3907c9d2c12e 100644
> --- a/arch/arm/boot/dts/dra7-evm.dts
> +++ b/arch/arm/boot/dts/dra7-evm.dts
> @@ -539,7 +539,7 @@
>  	};
>  
>  	pcf_gpio_21: gpio@21 {
> -		compatible = "ti,pcf8575";
> +		compatible = "nxp,pcf8575";
>  		reg = <0x21>;
>  		lines-initial-states = <0x1408>;
>  		gpio-controller;
> diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
> index 00b12002c07c..7ec42bda3afb 100644
> --- a/arch/arm/boot/dts/dra72-evm.dts
> +++ b/arch/arm/boot/dts/dra72-evm.dts
> @@ -422,7 +422,7 @@
>  	};
>  
>  	pcf_gpio_21: gpio@21 {
> -		compatible = "ti,pcf8575";
> +		compatible = "nxp,pcf8575";
>  		reg = <0x21>;
>  		lines-initial-states = <0x1408>;
>  		gpio-controller;
> 
> 
> 
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