From mboxrd@z Thu Jan  1 00:00:00 1970
From: gregory.clement@free-electrons.com (Gregory CLEMENT)
Date: Fri, 26 Aug 2016 11:17:06 +0200
Subject: [PATCH] DT: kirkwood: Fix Openblock A6 external GPIO pins
In-Reply-To: <20160815145104.14135-1-jason@lakedaemon.net> (Jason Cooper's
 message of "Mon, 15 Aug 2016 14:51:04 +0000")
References: <20160815013538.8056-1-jason@lakedaemon.net>
 <20160815145104.14135-1-jason@lakedaemon.net>
Message-ID: <87y43jj3e5.fsf@free-electrons.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Hi Jason,
 
 On lun., ao?t 15 2016, Jason Cooper <jason@lakedaemon.net> wrote:

> By assigning the pin hog to the pinctrl node, we correctly configure the
> MPPs.  However, they are not available to userspace.
>
> Fix this by assigning the hogs to the gpio node.
>
> After this, the following works as expected:
>
>   # echo 28 >/sys/class/gpio/export
>   # echo low >/sys/class/gpio/gpio28/direction
>
> Signed-off-by: Jason Cooper <jason@lakedaemon.net>

Applied on mvebu/dt with Reviewed-by flag from Andrew and I changed the
title to "ARM: dts: kirkwood: ..."

Thanks,

Gregory
> ---
> After sleeping on it a night, I decided to leave the dip switches alone.
>
>  arch/arm/boot/dts/kirkwood-openblocks_a6.dts | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
> index 0db0e3edc88f..94e49f32d5f9 100644
> --- a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
> +++ b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
> @@ -41,7 +41,7 @@
>  		};
>  
>  		pinctrl: pin-controller at 10000 {
> -			pinctrl-0 = <&pmx_dip_switches &pmx_gpio_header>;
> +			pinctrl-0 = <&pmx_dip_switches>;
>  			pinctrl-names = "default";
>  
>  			pmx_uart0: pmx-uart0 {
> @@ -174,3 +174,10 @@
>  		phy-handle = <&ethphy0>;
>  	};
>  };
> +
> +&gpio0 {
> +	status = "okay";
> +
> +	pinctrl-0 = <&pmx_gpio_header>;
> +	pinctrl-names = "default";
> +};
> -- 
> 2.9.2
>

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com