linux-kernel - Re: [PATCH v2 3/9] dt-bindings: i2c: at91: add binding for enable-dig-filtr

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Date:   Tue, 25 Jun 2019 08:57:14 +0000
From:   Peter Rosin <peda@...ntia.se>
To:     "Eugen.Hristev@...rochip.com" <Eugen.Hristev@...rochip.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "Nicolas.Ferre@...rochip.com" <Nicolas.Ferre@...rochip.com>,
        "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>,
        "Ludovic.Desroches@...rochip.com" <Ludovic.Desroches@...rochip.com>,
        "wsa@...-dreams.de" <wsa@...-dreams.de>,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/9] dt-bindings: i2c: at91: add binding for
 enable-dig-filtr

On 2019-06-25 10:04, Eugen.Hristev@...rochip.com wrote:
> From: Eugen Hristev <eugen.hristev@...rochip.com>
> 
> Add binding specificatoin for digital filter inside the i2c controller
> 
> Signed-off-by: Eugen Hristev <eugen.hristev@...rochip.com>
> ---
>  Documentation/devicetree/bindings/i2c/i2c-at91.txt | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
> index 2210f43..8268595 100644
> --- a/Documentation/devicetree/bindings/i2c/i2c-at91.txt
> +++ b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
> @@ -20,6 +20,9 @@ Optional properties:
>    capable I2C controllers.
>  - i2c-sda-hold-time-ns: TWD hold time, only available for "atmel,sama5d4-i2c"
>    and "atmel,sama5d2-i2c".
> +- enable-dig-filt: Enable the built-in digital filter on the i2c lines,
> +  specifically required depending on the hardware PCB/board and if the
> +  version of the controller includes it.
>  - Child nodes conforming to i2c bus binding
>  
>  Examples :
> @@ -56,6 +59,7 @@ i2c0: i2c@...34600 {
>  	clocks = <&flx0>;
>  	atmel,fifo-size = <16>;
>  	i2c-sda-hold-time-ns = <336>;
> +	enable-dig-filt;

This spelling does not match the spelling in the subject. But please see
my comment on patch 6/9...

Cheers,
Peter

>  
>  	wm8731: wm8731@1a {
>  		compatible = "wm8731";
>