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Date:	Thu, 21 May 2015 09:33:52 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Peter Seiderer <ps.report@....net>
Cc:	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Russell King <linux@....linux.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Mark Rutland <mark.rutland@....com>,
	Pawel Moll <pawel.moll@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Sascha Hauer <kernel@...gutronix.de>
Subject: Re: [PATCH v1] ARM: dts: nitrogen6x: add CAN support

On Wed, May 20, 2015 at 11:49:29PM +0200, Peter Seiderer wrote:
> Regulator stuff copied from imx6qdl-tx6.dtsi, pin configuration
> taken from Boundary Devices linux kernel tree ([1] and [2]).
> 
> [1] https://github.com/boundarydevices/linux-imx6/blob/boundary-imx_3.10.17_1.0.2_ga/arch/arm/boot/dts/imx6qdl-nitrogen6x.dts
> [2] https://github.com/boundarydevices/linux-imx6/blob/boundary-imx_3.10.17_1.0.2_ga/arch/arm/boot/dts/imx6qdl.dtsi
> 
> Signed-off-by: Peter Seiderer <ps.report@....net>
> ---
>  arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi | 32 +++++++++++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> index fd096dc..1c415e4 100644
> --- a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> @@ -54,6 +54,17 @@
>  			gpio = <&gpio3 22 0>;
>  			enable-active-high;
>  		};
> +
> +		reg_can_xcvr: regulator@3 {
> +			compatible = "regulator-fixed";
> +			reg = <3>;
> +			regulator-name = "CAN XCVR";
> +			regulator-min-microvolt = <3300000>;
> +			regulator-max-microvolt = <3300000>;
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&pinctrl_can_xcvr>;
> +			gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
> +		};
>  	};
>  
>  	gpio-keys {
> @@ -138,6 +149,13 @@
>  	status = "okay";
>  };
>  
> +&can1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_can1_1>;
> +	xceiver-supply = <&reg_can_xcvr>;
> +	status = "okay";
> +};
> +
>  &ecspi1 {
>  	fsl,spi-num-chipselects = <1>;
>  	cs-gpios = <&gpio3 19 0>;
> @@ -234,6 +252,20 @@
>  			>;
>  		};
>  
> +		pinctrl_can1_1: can1grp-1 {

The '_1' suffix is meaningless.

		pinctrl_can1: can1grp {

Shawn

> +			fsl,pins = <
> +				MX6QDL_PAD_KEY_COL2__FLEXCAN1_TX 0x80000000
> +				MX6QDL_PAD_KEY_ROW2__FLEXCAN1_RX 0x80000000
> +			>;
> +		};
> +
> +		pinctrl_can_xcvr: can-xcvrgrp {
> +			fsl,pins = <
> +				/* Flexcan XCVR enable */
> +				MX6QDL_PAD_GPIO_2__GPIO1_IO02		0x1b0b0
> +			>;
> +		};
> +
>  		pinctrl_ecspi1: ecspi1grp {
>  			fsl,pins = <
>  				MX6QDL_PAD_EIM_D17__ECSPI1_MISO		0x100b1
> -- 
> 2.1.4
> 
> --
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