[PATCH 12/37] ARM: dts: dove-sbc-a510: Fix regulator enable GPIO polarity

Jason Cooper jason at lakedaemon.net
Mon Oct 12 15:50:09 PDT 2015


On Tue, Oct 13, 2015 at 12:12:41AM +0300, Laurent Pinchart wrote:
> The enable GPIO is active low, but is flagged as active high in the gpio
> property. As the gpio property flags are currently unused by the driver
> this doesn't cause any issue for now, but will break later if the driver
> starts making use of the flags. Fix it.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> ---
>  arch/arm/boot/dts/dove-sbc-a510.dts | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> Cc: Jason Cooper <jason at lakedaemon.net>
> Cc: Andrew Lunn <andrew at lunn.ch>
> Cc: Gregory Clement <gregory.clement at free-electrons.com>
> Cc: Sebastian Hesselbarth <sebastian.hesselbarth at gmail.com>
> 
> diff --git a/arch/arm/boot/dts/dove-sbc-a510.dts b/arch/arm/boot/dts/dove-sbc-a510.dts
> index 288e707dea99..3bc5c96483be 100644
> --- a/arch/arm/boot/dts/dove-sbc-a510.dts
> +++ b/arch/arm/boot/dts/dove-sbc-a510.dts
> @@ -82,7 +82,7 @@
>  			regulator-name = "USB Power";
>  			regulator-min-microvolt = <5000000>;
>  			regulator-max-microvolt = <5000000>;
> -			gpio = <&gpio_ext 0 GPIO_ACTIVE_HIGH>;
> +			gpio = <&gpio_ext 0 GPIO_ACTIVE_LOW>;

I'd feel a lot better about this if the commit log made a strong
reference back to some documentation or other hardware description.
Just because Linux doesn't use it or uses it wrong doesn't necessarily
mean the DT is wrong.

thx,

Jason.


>  		};
>  
>  		mmc_power: regulator at 3 {
> @@ -90,7 +90,7 @@
>  			regulator-name = "MMC Power";
>  			regulator-min-microvolt = <3300000>;
>  			regulator-max-microvolt = <3300000>;
> -			gpio = <&gpio_ext 13 GPIO_ACTIVE_HIGH>;
> +			gpio = <&gpio_ext 13 GPIO_ACTIVE_LOW>;
>  		};
>  	};
>  };
> -- 
> 2.4.9
> 



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