linux-kernel - Re: [PATCH 3/3] ARM: dts: imx7: add Toradex Colibri iMX7S/iMX7D support

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Message-ID: <20160612023100.GW20243@tiger>
Date:	Sun, 12 Jun 2016 10:31:00 +0800
From:	Shawn Guo <shawnguo@...nel.org>
To:	Stefan Agner <stefan@...er.ch>
Cc:	kernel@...gutronix.de, mark.rutland@....com,
	devicetree@...r.kernel.org, pawel.moll@....com,
	ijc+devicetree@...lion.org.uk, marcel.ziswiler@...adex.com,
	linux-kernel@...r.kernel.org, robh+dt@...nel.org,
	max.krummenacher@...adex.com, galak@...eaurora.org,
	fabio.estevam@....com, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 3/3] ARM: dts: imx7: add Toradex Colibri iMX7S/iMX7D
 support

On Tue, Jun 07, 2016 at 07:37:09PM -0700, Stefan Agner wrote:
> +&lcdif {
> +	status = "okay";
> +	display = <&display0>;

Please put 'status' at the bottom of property list.

> +
> +	display0: lcd-display {
> +		bits-per-pixel = <16>;
> +		bus-width = <18>;
> +
> +		display-timings {
> +			native-mode = <&timing_vga>;
> +
> +			/* Standard VGA timing */
> +			timing_vga: 640x480 {
> +				clock-frequency = <25175000>;
> +				hactive = <640>;
> +				vactive = <480>;
> +				hback-porch = <40>;
> +				hfront-porch = <24>;
> +				vback-porch = <32>;
> +				vfront-porch = <11>;
> +				hsync-len = <96>;
> +				vsync-len = <2>;
> +				de-active = <1>;
> +				hsync-active = <0>;
> +				vsync-active = <0>;
> +				pixelclk-active = <0>;
> +			};
> +		};
> +	};
> +};

<snip>

> +&usdhc1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_cd_usdhc1>;
> +	no-1-8-v;
> +	cd-gpios = <&gpio1 0 0>;

Use the macro in include/dt-bindings/gpio/gpio.h.

> +	enable-sdio-wakeup;

This is deprecated.  Please use wakeup-source instead.

> +	fsl,tuning-step = <2>;
> +	keep-power-in-suspend;
> +	status = "okay";
> +};

<snip>

> +&fec1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_enet1>;
> +	clocks = <&clks IMX7D_ENET_AXI_ROOT_CLK>,
> +		<&clks IMX7D_ENET_AXI_ROOT_CLK>,
> +		<&clks IMX7D_ENET1_TIME_ROOT_CLK>,
> +		<&clks IMX7D_PLL_ENET_MAIN_50M_CLK>;
> +	clock-names = "ipg", "ahb", "ptp", "enet_clk_ref";
> +

Drop this newline.

> +	assigned-clocks = <&clks IMX7D_ENET1_TIME_ROOT_SRC>,
> +			  <&clks IMX7D_ENET1_TIME_ROOT_CLK>;
> +	assigned-clock-parents = <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>;
> +	assigned-clock-rates = <0>, <100000000>;
> +	phy-mode = "rmii";
> +	phy-supply = <&reg_LDO1>;
> +	fsl,magic-packet;
> +};

<snip>

> +&uart1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart1 &pinctrl_uart1_ctrl1 &pinctrl_uart1_ctrl2>;
> +	assigned-clocks = <&clks IMX7D_UART1_ROOT_SRC>;
> +	assigned-clock-parents = <&clks IMX7D_OSC_24M_CLK>;
> +	fsl,uart-has-rtscts;

Please use generic 'uart-has-rtscts' instead.

> +	fsl,dte-mode;
> +};
> +
> +&uart2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart2>;
> +	assigned-clocks = <&clks IMX7D_UART2_ROOT_SRC>;
> +	assigned-clock-parents = <&clks IMX7D_OSC_24M_CLK>;
> +	fsl,uart-has-rtscts;

Ditto

> +	fsl,dte-mode;
> +};

<snip>

> +/ {
> +	model = "Toradex Colibri iMX7D on Colibri Evaluation Board V3";
> +	compatible = "toradex,colibri_imx7d-eval", "toradex,colibri_imx7d", \

We always use hyphen than underscore in compatible string.

> +		     "fsl,imx7d";
> +
> +	reg_usb_otg2_vbus: regulator-usb-otg2-vbus {
> +		compatible = "regulator-fixed";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_usbotg2_reg>;
> +		regulator-name = "VCC_USB[1-4]";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		gpio = <&gpio4 7 GPIO_ACTIVE_LOW>;
> +	};
> +};
> +/ {
> +	model = "Toradex Colibri iMX7S on Colibri Evaluation Board V3";
> +	compatible = "toradex,colibri_imx7s-eval", "toradex,colibri_imx7s", \
> +		     "fsl,imx7s", "fsl,imx7d";

You may not want to have "fsl,imx7d" here.  Otherwise, the detection
between  imx7s and imx7d colibri-eval-v3 board will be difficult.

Shawn

> +};