Re: [PATCH v3 12/20] ARM: dts: sun8i: Enable dwmac-sun8i on the Orange Pi plus

From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: Corentin Labbe <clabbe.montjoie@gmail.com>
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
	alexandre.torgue@st.com, catalin.marinas@arm.com,
	will.deacon@arm.com, linux@armlinux.org.uk,
	linux-kernel@vger.kernel.org, wens@csie.org, robh+dt@kernel.org,
	netdev@vger.kernel.org, peppe.cavallaro@st.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 12/20] ARM: dts: sun8i: Enable dwmac-sun8i on the Orange Pi plus
Date: Mon, 3 Apr 2017 13:37:21 +0200	[thread overview]
Message-ID: <20170403113721.nijh2uwgepfkrpm4@lukather> (raw)
In-Reply-To: <20170403091444.29876-13-clabbe.montjoie@gmail.com>

[-- Attachment #1.1: Type: text/plain, Size: 1693 bytes --]

On Mon, Apr 03, 2017 at 11:14:36AM +0200, Corentin Labbe wrote:
> The dwmac-sun8i hardware is present on the Orange PI plus.
> It uses an external PHY rtl8211e via RGMII.
> 
> This patch create the needed regulator, emac and phy nodes.
> 
> Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
> ---
>  arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts | 36 ++++++++++++++++++++++++++++
>  1 file changed, 36 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
> index 8c40ab7..6852006 100644
> --- a/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
> +++ b/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
> @@ -58,6 +58,18 @@
>  		enable-active-high;
>  		gpio = <&pio 6 11 GPIO_ACTIVE_HIGH>;
>  	};
> +
> +	reg_gmac_3v3: gmac-3v3 {
> +		compatible = "regulator-fixed";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&gmac_power_pin_orangepi>;
> +		regulator-name = "gmac-3v3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		startup-delay-us = <100000>;
> +		enable-active-high;
> +		gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>;
> +	};
>  };
>  
>  &ehci3 {
> @@ -86,8 +98,32 @@
>  		pins = "PG11";
>  		function = "gpio_out";
>  	};
> +
> +	gmac_power_pin_orangepi: gmac_power_pin@0 {
> +		pins = "PD6";
> +		function = "gpio_out";
> +		drive-strength = <10>;
> +	};

This is not needed, and will even harm the fixing of a bug that will
require to remove all the GPIO nodes. It works fine without it, please
remove it.

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 801 bytes --]

[-- Attachment #2: Type: text/plain, Size: 176 bytes --]

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel