[PATCH 1/5] ARM: dts: armada388-clearfog: add phy reset gpio-hog

[gregory.clement@free-electrons.com (Gregory CLEMENT)]

Hi Russell,
 
 On lun., janv. 02 2017, Russell King <rmk+kernel@armlinux.org.uk> wrote:


It would be nice to have some word here about this patch. Especially why
we need it now. I guess it is for being less dependent on the
initialization done by the bootloader but maybe you have other reasons.

Thanks,

Gregory

> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
> ---
>  arch/arm/boot/dts/armada-388-clearfog-base.dts | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>
> diff --git a/arch/arm/boot/dts/armada-388-clearfog-base.dts b/arch/arm/boot/dts/armada-388-clearfog-base.dts
> index f86e1876fb38..da788ea40717 100644
> --- a/arch/arm/boot/dts/armada-388-clearfog-base.dts
> +++ b/arch/arm/boot/dts/armada-388-clearfog-base.dts
> @@ -74,7 +74,17 @@
>  	phy = <&phy1>;
>  };
>  
> +&gpio0 {
> +	phy1_reset {
> +		gpio-hog;
> +		gpios = <19 GPIO_ACTIVE_LOW>;
> +		output-low;
> +		line-name = "phy1-reset";
> +	};
> +};
> +
>  &mdio {
> +	pinctrl-0 = <&mdio_pins &microsom_phy_clk_pins &clearfog_phy_pins>;
>  	phy1: ethernet-phy at 1 {
>  		/*
>  		 * Annoyingly, the marvell phy driver configures the LED
> @@ -87,6 +97,11 @@
>  };
>  
>  &pinctrl {
> +	/* phy1 reset */
> +	clearfog_phy_pins: clearfog-phy-pins {
> +		marvell,pins = "mpp19";
> +		marvell,function = "gpio";
> +	};
>  	rear_button_pins: rear-button-pins {
>  		marvell,pins = "mpp44";
>  		marvell,function = "gpio";
> -- 
> 2.7.4
>

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