linux-kernel - Re: [RESEND PATCH] arm: dts: at91: Fix boolean properties with values

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Message-ID: <03806376-eb00-ac32-171b-644e8cb2bd22@microchip.com>
Date:   Wed, 13 Apr 2022 14:42:56 +0200
From:   Nicolas Ferre <nicolas.ferre@...rochip.com>
To:     Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        <soc@...nel.org>
CC:     <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [RESEND PATCH] arm: dts: at91: Fix boolean properties with values

On 06/04/2022 at 21:09, Rob Herring wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> Boolean properties in DT are present or not present and don't take a value.
> A property such as 'foo = <0>;' evaluated to true. IOW, the value doesn't
> matter.
> 
> It may have been intended that 0 values are false, but there is no change
> in behavior with this patch.
> 
> Signed-off-by: Rob Herring <robh@...nel.org>

Acked-by: Nicolas Ferre <nicolas.ferre@...rochip.com>

> ---
> Can someone apply this for 5.18 please.

Yes, sure, it's now queued in the fixes branch for 5.18.

Thanks for your help Rob. Best regards,
   Nicolas

> 
>   arch/arm/boot/dts/at91-kizbox3-hs.dts      | 2 +-
>   arch/arm/boot/dts/at91-kizbox3_common.dtsi | 2 +-
>   2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/at91-kizbox3-hs.dts b/arch/arm/boot/dts/at91-kizbox3-hs.dts
> index 2799b2a1f4d2..f7d90cf1bb77 100644
> --- a/arch/arm/boot/dts/at91-kizbox3-hs.dts
> +++ b/arch/arm/boot/dts/at91-kizbox3-hs.dts
> @@ -225,7 +225,7 @@ pinctrl_pio_zbe_rst: gpio_zbe_rst {
>                  pinctrl_pio_io_reset: gpio_io_reset {
>                          pinmux = <PIN_PB30__GPIO>;
>                          bias-disable;
> -                       drive-open-drain = <1>;
> +                       drive-open-drain;
>                          output-low;
>                  };
>                  pinctrl_pio_input: gpio_input {
> diff --git a/arch/arm/boot/dts/at91-kizbox3_common.dtsi b/arch/arm/boot/dts/at91-kizbox3_common.dtsi
> index abe27adfa4d6..465664628419 100644
> --- a/arch/arm/boot/dts/at91-kizbox3_common.dtsi
> +++ b/arch/arm/boot/dts/at91-kizbox3_common.dtsi
> @@ -211,7 +211,7 @@ pinctrl_flx4_default: flx4_i2c6_default {
>                  pinmux = <PIN_PD12__FLEXCOM4_IO0>, //DATA
>                  <PIN_PD13__FLEXCOM4_IO1>; //CLK
>                  bias-disable;
> -               drive-open-drain = <1>;
> +               drive-open-drain;
>          };
> 
>          pinctrl_pwm0 {
> --
> 2.32.0
> 


-- 
Nicolas Ferre