Re: [PATCH] ARM: dts: imx51: add support for Ka-Ro electronics TX51 modules

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On Wed, Jan 20, 2016 at 01:23:39PM +0100, Lothar Waßmann wrote:
> The TX51-8xxx module series is a System On Module manufactured by
>   Ka-Ro electronics GmbH with the following characteristics:
>   Processor    Freescale i.MX515
>                  up to 800 MHz (commercial)
>                  up to 600 MHz (industrial)
>   RAM          128/256MB mobile DDR-SDRAM
>   ROM          128MB NAND Flash
>   RTC          DS1339 Real Time Clock
>   Power supply Single 3.1V to 5.5V
>   Size         26mm SO-DIMM
>   Temp. Range  0°C..70°C (-40°C..85°C)
> 
> Signed-off-by: Lothar Waßmann <LW@xxxxxxxxxxxxxxxxxxx>
> ---
>  arch/arm/boot/dts/Makefile       |   3 +-
>  arch/arm/boot/dts/imx51-tx51.dts | 749 +++++++++++++++++++++++++++++++++++++++
>  2 files changed, 751 insertions(+), 1 deletion(-)
>  create mode 100644 arch/arm/boot/dts/imx51-tx51.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index a4a6d70..ea70f34 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -277,7 +277,8 @@ dtb-$(CONFIG_SOC_IMX51) += \
>  	imx51-babbage.dtb \
>  	imx51-digi-connectcore-jsk.dtb \
>  	imx51-eukrea-mbimxsd51-baseboard.dtb \
> -	imx51-ts4800.dtb
> +	imx51-ts4800.dtb \
> +	imx51-tx51.dtb
>  dtb-$(CONFIG_SOC_IMX53) += \
>  	imx53-ard.dtb \
>  	imx53-m53evk.dtb \
> diff --git a/arch/arm/boot/dts/imx51-tx51.dts b/arch/arm/boot/dts/imx51-tx51.dts
> new file mode 100644
> index 0000000..80c5d60
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx51-tx51.dts
> @@ -0,0 +1,749 @@
> +/*
> + * Copyright 2012-2014 Lothar Waßmann <LW@xxxxxxxxxxxxxxxxxxx>
> + *
> + * The code contained herein is licensed under the GNU General Public
> + * License. You may obtain a copy of the GNU General Public License
> + * Version 2 at the following locations:
> + *
> + * http://www.opensource.org/licenses/gpl-license.html
> + * http://www.gnu.org/copyleft/gpl.html
> + */

We generally suggest GPL/X11 dual license for new dts to consider
non-Linux device tree users.

> +
> +/dts-v1/;
> +#include "imx51.dtsi"
> +#include <dt-bindings/pwm/pwm.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/ {
> +	model = "Ka-Ro electronics TX51 module";
> +	compatible = "karo,tx51", "fsl,imx51";
> +
> +	aliases {
> +		backlight = &backlight;
> +		display = &display;
> +		i2c1 = &i2c_gpio;
> +		usbotg = &usbotg;
> +		wlan0 = &wlan0;
> +	};
> +
> +	chosen {
> +		stdout-path = &uart1;
> +	};
> +
> +	backlight: pwm-backlight {
> +		compatible = "pwm-backlight";
> +		pwms = <&pwm1 0 500000 PWM_POLARITY_INVERTED>;
> +		power-supply = <&reg_3v3>;
> +		brightness-levels = <
> +			  0  1  2  3  4  5  6  7  8  9
> +			 10 11 12 13 14 15 16 17 18 19
> +			 20 21 22 23 24 25 26 27 28 29
> +			 30 31 32 33 34 35 36 37 38 39
> +			 40 41 42 43 44 45 46 47 48 49
> +			 50 51 52 53 54 55 56 57 58 59
> +			 60 61 62 63 64 65 66 67 68 69
> +			 70 71 72 73 74 75 76 77 78 79
> +			 80 81 82 83 84 85 86 87 88 89
> +			 90 91 92 93 94 95 96 97 98 99
> +			100
> +		>;
> +		default-brightness-level = <50>;
> +	};
> +
> +	clocks {
> +		ckih1 {
> +			clock-frequency = <0>;
> +		};
> +
> +		mclk: clock@0 {

I would like to see these fixed rate clocks are named in a consistent
way, maybe just drop 'reg' property and use a unique clock name to align
with what imx51.dtsi does.

> +			compatible = "fixed-clock";
> +			reg = <0>;
> +			#clock-cells = <0>;
> +			clock-output-names = "mclk";
> +			clock-frequency = <26000000>;
> +		};
> +
> +		clk_26M: clock@1 {
> +			compatible = "fixed-clock";
> +			reg = <1>;
> +			#clock-cells = <0>;
> +			clock-output-names = "clk_26M";
> +			clock-frequency = <26000000>;
> +			gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
> +		};
> +
> +		wlan_ref_clk: wlan-ref-clk {
> +			compatible = "ti,wilink-clock";

I do not see this compatible string is documented anywhere.  And how is
this compatible string used by kernel?

> +			#clock-cells = <0>;
> +			clock-frequency = <38400000>;
> +		};
> +	};
> +
> +	display: display@di0 {
> +		compatible = "fsl,imx-parallel-display";
> +		interface-pix-fmt = "rgb24";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_ipu_disp0>;
> +
> +		display-timings {
> +			VGA {
> +				clock-frequency = <25200000>;
> +				hactive = <640>;
> +				vactive = <480>;
> +				hback-porch = <48>;
> +				hsync-len = <96>;
> +				hfront-porch = <16>;
> +				vback-porch = <31>;
> +				vsync-len = <2>;
> +				vfront-porch = <12>;
> +				hsync-active = <0>;
> +				vsync-active = <0>;
> +				de-active = <1>;
> +				pixelclk-active = <0>;
> +			};
> +
> +			ETV570 {
> +				clock-frequency = <25200000>;
> +				hactive = <640>;
> +				vactive = <480>;
> +				hback-porch = <114>;
> +				hsync-len = <30>;
> +				hfront-porch = <16>;
> +				vback-porch = <32>;
> +				vsync-len = <3>;
> +				vfront-porch = <10>;
> +				hsync-active = <0>;
> +				vsync-active = <0>;
> +				de-active = <1>;
> +				pixelclk-active = <0>;
> +			};
> +
> +			ET0350 {
> +				clock-frequency = <6413760>;
> +				hactive = <320>;
> +				vactive = <240>;
> +				hback-porch = <34>;
> +				hsync-len = <34>;
> +				hfront-porch = <20>;
> +				vback-porch = <15>;
> +				vsync-len = <3>;
> +				vfront-porch = <4>;
> +				hsync-active = <0>;
> +				vsync-active = <0>;
> +				de-active = <1>;
> +				pixelclk-active = <0>;
> +			};
> +
> +			ET0430 {
> +				clock-frequency = <9009000>;
> +				hactive = <480>;
> +				vactive = <272>;
> +				hback-porch = <2>;
> +				hsync-len = <41>;
> +				hfront-porch = <2>;
> +				vback-porch = <2>;
> +				vsync-len = <10>;
> +				vfront-porch = <2>;
> +				hsync-active = <0>;
> +				vsync-active = <0>;
> +				de-active = <1>;
> +				pixelclk-active = <1>;
> +			};
> +
> +			ET0500 {
> +				clock-frequency = <33264000>;
> +				hactive = <800>;
> +				vactive = <480>;
> +				hback-porch = <88>;
> +				hsync-len = <128>;
> +				hfront-porch = <40>;
> +				vback-porch = <33>;
> +				vsync-len = <2>;
> +				vfront-porch = <10>;
> +				hsync-active = <0>;
> +				vsync-active = <0>;
> +				de-active = <1>;
> +				pixelclk-active = <0>;
> +			};
> +
> +			ET0700 { /* same as ET0500 */
> +				clock-frequency = <33264000>;
> +				hactive = <800>;
> +				vactive = <480>;
> +				hback-porch = <88>;
> +				hsync-len = <128>;
> +				hfront-porch = <40>;
> +				vback-porch = <33>;
> +				vsync-len = <2>;
> +				vfront-porch = <10>;
> +				hsync-active = <0>;
> +				vsync-active = <0>;
> +				de-active = <1>;
> +				pixelclk-active = <0>;
> +			};
> +
> +			ETQ570 {
> +				clock-frequency = <6596040>;
> +				hactive = <320>;
> +				vactive = <240>;
> +				hback-porch = <38>;
> +				hsync-len = <30>;
> +				hfront-porch = <30>;
> +				vback-porch = <16>;
> +				vsync-len = <3>;
> +				vfront-porch = <4>;
> +				hsync-active = <0>;
> +				vsync-active = <0>;
> +				de-active = <1>;
> +				pixelclk-active = <0>;
> +			};
> +		};
> +
> +		port {
> +			display0_in: endpoint {
> +				remote-endpoint = <&ipu_di0_disp0>;
> +			};
> +		};
> +	};
> +
> +	i2c_gpio: i2c-gpio {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		compatible = "i2c-gpio";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_i2c_gpio>;
> +		gpios = <&gpio4 17 0
> +			 &gpio4 16 0>;
> +		clock-frequency = <400000>;
> +
> +		rtc1: ds1339@68 {
> +			compatible = "dallas,ds1339";
> +			reg = <0x68>;
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_stk5led>;
> +
> +		user {
> +			label = "Heartbeat";
> +			gpios = <&gpio4 10 0 GPIO_ACTIVE_HIGH>;
> +			linux,default-trigger = "heartbeat";
> +		};
> +	};
> +
> +	regulators {
> +		compatible = "simple-bus";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		reg_2v5: regulator@0 {

Device tree maintainers do not like the fake simple-bus container node.
We are asked to put these fixed regulators directly under root node,
with a unique node name like:

	reg_xxx: regulator-xxx {
		...
	};

> +			compatible = "regulator-fixed";
> +			reg = <0>;
> +			regulator-name = "2V5";
> +			regulator-min-microvolt = <2500000>;
> +			regulator-max-microvolt = <2500000>;
> +			regulator-always-on;
> +		};
> +
> +		reg_3v3: regulator@1 {
> +			compatible = "regulator-fixed";
> +			reg = <1>;
> +			regulator-name = "3V3";
> +			regulator-min-microvolt = <3300000>;
> +			regulator-max-microvolt = <3300000>;
> +			regulator-always-on;
> +		};
> +
> +		reg_etn_phy: regulator@2 {
> +			compatible = "regulator-fixed";
> +			reg = <2>;
> +			regulator-name = "ETN PHY Power";
> +			regulator-min-microvolt = <3300000>;
> +			regulator-max-microvolt = <3300000>;
> +			gpio = <&gpio1 3 GPIO_ACTIVE_HIGH>;
> +			enable-active-high;
> +			regulator-boot-on;
> +			regulator-always-on;
> +		};
> +
> +		reg_lcd_pwr: regulator@5 {
> +			compatible = "regulator-fixed";
> +			reg = <5>;
> +			regulator-name = "LCD POWER";
> +			regulator-min-microvolt = <3300000>;
> +			regulator-max-microvolt = <3300000>;
> +			gpio = <&gpio4 14 GPIO_ACTIVE_HIGH>;
> +			enable-active-high;
> +			regulator-boot-on;
> +			regulator-always-on;
> +		};
> +
> +		reg_lcd_reset: regulator@6 {
> +			compatible = "regulator-fixed";
> +			reg = <6>;
> +			regulator-name = "LCD RESET";
> +			regulator-min-microvolt = <3300000>;
> +			regulator-max-microvolt = <3300000>;
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&pinctrl_lcd_reset>;
> +			gpio = <&gpio4 13 GPIO_ACTIVE_HIGH>;
> +			enable-active-high;
> +			regulator-boot-on;
> +			regulator-always-on;
> +		};
> +
> +		reg_wlan0: regulator@9 {
> +			compatible = "regulator-fixed";
> +			reg = <8>;
> +			regulator-name = "wlan0";
> +			regulator-min-microvolt = <3300000>;
> +			regulator-max-microvolt = <3300000>;
> +			gpio = <&gpio4 15 GPIO_ACTIVE_HIGH>;
> +			enable-active-high;
> +		};
> +	};
> +
> +	sound {
> +		compatible = "karo,tx51-audio-sgtl5000", "fsl,imx-audio-sgtl5000";
> +		model = "tx51-audio-sgtl5000";
> +		ssi-controller = <&ssi1>;
> +		audio-codec = <&sgtl5000>;
> +		audio-routing =
> +			"MIC_IN", "Mic Jack",
> +			"Mic Jack", "Mic Bias",
> +			"Headphone Jack", "HP_OUT";
> +		/* '1' based port numbers according to datasheet names */
> +		mux-int-port = <1>;
> +		mux-ext-port = <3>;
> +	};
> +
> +	usbphy {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		compatible = "simple-bus";
> +
> +		usbh1phy: usbphy@0 {
> +			compatible = "usb-nop-xceiv";
> +			reg = <0>;
> +			clocks = <&clk_26M>;
> +			clock-names = "main_clk";
> +		};

This should probably go with the same way as fixed regulators.

> +	};
> +
> +	wlan0: tiwi-ble {
> +		compatible = "ti,wilink6";

Undocumented compatible string.

> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_wlan0>;
> +		clocks = <&wlan_ref_clk>;
> +		clock-names = "refclock";
> +		interrupt-parent = <&gpio1>;
> +		interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
> +	};
> +};
> +
> +&audmux {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_ssi1>;
> +	status = "okay";
> +};
> +
> +&ecspi1 {
> +	fsl,spi-num-chipselects = <2>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_ecspi1>;
> +	cs-gpios = <&gpio4 24 GPIO_ACTIVE_LOW>,
> +		   <&gpio4 25 GPIO_ACTIVE_LOW>;
> +	status = "okay";
> +
> +	spidev0: spi@0 {
> +		compatible = "spidev";
> +		reg = <0>;
> +		spi-max-frequency = <54000000>;
> +	};
> +
> +	spidev1: spi@1 {
> +		compatible = "spidev";
> +		reg = <1>;
> +		spi-max-frequency = <54000000>;
> +	};
> +};
> +
> +&esdhc1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_esdhc1>;
> +	cd-gpios = <&gpio3 8 GPIO_ACTIVE_LOW>;
> +	fsl,wp-controller;
> +	status = "okay";
> +};
> +
> +&esdhc2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_esdhc2 &pinctrl_wlan0>;
> +	vmmc-supply = <&reg_wlan0>;
> +	bus-width = <4>;
> +	no-1-8-v;
> +	fsl,wp-controller;
> +	cap-sdio-irq;
> +	non-removable;
> +	//cd-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;

Drop it.

> +	status = "okay";
> +};
> +
> +&fec {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_fec>;
> +	phy-mode = "mii";
> +//	phy-handle = <&phy0>;
> +	local-mac-address = [000000000000]; /* will be set by U-Boot */
> +	status = "okay";
> +
> +	phy0: ethernet-phy@0 {
> +		interrupt-parent = <&gpio3>;
> +		interrupts = <18 0>;
> +		device_type = "ethernet-phy";
> +	};

This probably works, but I think we should follow the more standard
bindings to put it like the following?


	phy-handle = <&phy0>;

	mdio {
		#address-cells = <1>;
		#size-cells = <0>;

		phy0: ethernet-phy@0 {
			interrupt-parent = <&gpio3>;
			interrupts = <18 0>;
			device_type = "ethernet-phy";
		};
	};


> +};
> +
> +&ipu {
> +	status = "okay";
> +};
> +
> +&i2c2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_i2c2>;
> +	status = "okay";
> +
> +	sgtl5000: sgtl5000@0a {

Use generic name like 'codec' for node might comply to DT convention
better.

> +		compatible = "fsl,sgtl5000";
> +		reg = <0x0a>;
> +		clocks = <&mclk>;
> +		VDDA-supply = <&reg_2v5>;
> +		VDDIO-supply = <&reg_3v3>;
> +	};
> +
> +	polytouch: edt-ft5x06@38 {
> +		compatible = "edt,edt-ft5x06";
> +		reg = <0x38>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_edt_ft5x06>;
> +		interrupt-parent = <&gpio1>;
> +		interrupts = <5 0>;
> +		reset-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
> +		wake-gpios = <&gpio4 9 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	touchscreen: tsc2007@48 {

	tsc2007: touchscreen@48 {

> +		compatible = "ti,tsc2007";
> +		reg = <0x48>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_tsc2007>;
> +		interrupt-parent = <&gpio3>;
> +		interrupts = <3 0>;
> +		gpios = <&gpio3 3 GPIO_ACTIVE_LOW>;
> +		ti,x-plate-ohms = <660>;
> +		linux,wakeup;

Use the new standard 'wakeup-source' please.

https://git.kernel.org/cgit/linux/kernel/git/shawnguo/linux.git/commit/?h=imx/dt&id=1c49ad21c2cae607193da4495489c751d7147df2

> +	};
> +};
> +
> +&iomuxc {

Please move the node to the bottom of the file to make the reset a bit
easier for reading.

> +	imx51-tx51 {

Since commit 5fcdf6a7ed95 (pinctrl: imx: Allow parsing DT without
function nodes), this additional function container node can be saved.

> +		pinctrl_hog: hoggrp {
> +			fsl,pins = <
> +				MX51_PAD_GPIO1_7__GPIO1_7		0x20e0	/* 26MHz osc enable */
> +			>;
> +		};
> +
> +		pinctrl_ecspi1: ecspi1grp {
> +			fsl,pins = <
> +				MX51_PAD_CSPI1_SS0__ECSPI1_SS0		0x4
> +				MX51_PAD_CSPI1_SS1__ECSPI1_SS1		0x4
> +				MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK	0x5
> +				MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI	0x85
> +				MX51_PAD_CSPI1_MISO__ECSPI1_MISO	0x185
> +				MX51_PAD_CSPI1_RDY__ECSPI1_RDY		0x84
> +			>;
> +		};
> +
> +		pinctrl_edt_ft5x06: edt-ft5x056grp {

I would suggest to not use any hyphen in pinctrl group node name to make
the naming looks more consistent.

> +			fsl,pins = <
> +				MX51_PAD_GPIO1_5__GPIO1_5		0x20e0	/* Interrupt */
> +				MX51_PAD_CSI2_PIXCLK__GPIO4_15		0x20e0	/* Reset */
> +				MX51_PAD_CSI2_D12__GPIO4_9		0x20e0	/* Wake */
> +			>;
> +		};
> +
> +		pinctrl_esdhc1: esdhc1grp {
> +			fsl,pins = <
> +				MX51_PAD_DISPB2_SER_RS__GPIO3_8 	0x1c0 /* SD1 CD */
> +				MX51_PAD_SD1_DATA0__SD1_DATA0		0x20d4
> +				MX51_PAD_SD1_DATA1__SD1_DATA1		0x20d4
> +				MX51_PAD_SD1_DATA2__SD1_DATA2		0x20d4
> +				MX51_PAD_SD1_DATA3__SD1_DATA3		0x20d4
> +				MX51_PAD_SD1_CMD__SD1_CMD		0x400020d4
> +				MX51_PAD_SD1_CLK__SD1_CLK		0x2004
> +			>;
> +		};
> +
> +		pinctrl_esdhc2: esdhc2grp {
> +			fsl,pins = <
> +				MX51_PAD_DISPB2_SER_DIO__GPIO3_6	0x1c0 /* SD2 CD */
> +				MX51_PAD_SD2_DATA0__SD2_DATA0		0x20d4
> +				MX51_PAD_SD2_DATA1__SD2_DATA1		0x20d4
> +				MX51_PAD_SD2_DATA2__SD2_DATA2		0x20d4
> +				MX51_PAD_SD2_DATA3__SD2_DATA3		0x20d4
> +				MX51_PAD_SD2_CMD__SD2_CMD		0x400020d4
> +				MX51_PAD_SD2_CLK__SD2_CLK		0x2004
> +			>;
> +		};
> +
> +		pinctrl_fec: fecgrp {
> +			fsl,pins = <
> +				MX51_PAD_EIM_A20__GPIO2_14		0x20e4	/* PHY reset */
> +				MX51_PAD_GPIO1_3__GPIO1_3		0x20e4	/* PHY power */
> +				MX51_PAD_NANDF_CS3__FEC_MDC		0x2004
> +				MX51_PAD_EIM_EB2__FEC_MDIO		0x0005
> +				MX51_PAD_NANDF_RB3__FEC_RX_CLK		0x2000
> +				MX51_PAD_NANDF_D11__FEC_RX_DV		0x2000
> +				MX51_PAD_NANDF_D9__FEC_RDATA0		0x2000
> +				MX51_PAD_EIM_EB3__FEC_RDATA1		0x0001
> +				MX51_PAD_EIM_CS2__FEC_RDATA2		0x0001
> +				MX51_PAD_EIM_CS3__FEC_RDATA3		0x0001
> +				MX51_PAD_EIM_CS4__FEC_RX_ER		0x0001
> +				MX51_PAD_NANDF_RDY_INT__FEC_TX_CLK	0x2000
> +				MX51_PAD_NANDF_CS7__FEC_TX_EN		0x2004
> +				MX51_PAD_NANDF_D8__FEC_TDATA0		0x2004
> +				MX51_PAD_NANDF_CS4__FEC_TDATA1		0x2004
> +				MX51_PAD_NANDF_CS5__FEC_TDATA2		0x2004
> +				MX51_PAD_NANDF_CS6__FEC_TDATA3		0x2004
> +				MX51_PAD_NANDF_RB2__FEC_COL		0x2000
> +				MX51_PAD_EIM_CS5__FEC_CRS		0x0005
> +				MX51_PAD_NANDF_CS2__GPIO3_18		0x20e4
> +			>;
> +		};
> +
> +		pinctrl_i2c2: ipu-i2c2grp {
> +			fsl,pins = <
> +				 MX51_PAD_EIM_D27__I2C2_SCL		0x40000004
> +				 MX51_PAD_EIM_D24__I2C2_SDA		0x40000004
> +			>;
> +		};
> +
> +		pinctrl_i2c_gpio: ipu-i2c-gpiogrp {
> +			fsl,pins = <
> +				 MX51_PAD_I2C1_CLK__GPIO4_16		0x40000004
> +				 MX51_PAD_I2C1_DAT__GPIO4_17		0x40000004
> +			>;
> +		};
> +
> +		pinctrl_ipu_disp0: ipu-disp0grp {
> +			fsl,pins = <
> +				MX51_PAD_DISP1_DAT0__DISP1_DAT0		0x5
> +				MX51_PAD_DISP1_DAT1__DISP1_DAT1		0x5
> +				MX51_PAD_DISP1_DAT2__DISP1_DAT2		0x5
> +				MX51_PAD_DISP1_DAT3__DISP1_DAT3		0x5
> +				MX51_PAD_DISP1_DAT4__DISP1_DAT4		0x5
> +				MX51_PAD_DISP1_DAT5__DISP1_DAT5		0x5
> +				MX51_PAD_DISP1_DAT6__DISP1_DAT6		0x5
> +				MX51_PAD_DISP1_DAT7__DISP1_DAT7		0x5
> +				MX51_PAD_DISP1_DAT8__DISP1_DAT8		0x5
> +				MX51_PAD_DISP1_DAT9__DISP1_DAT9		0x5
> +				MX51_PAD_DISP1_DAT10__DISP1_DAT10	0x5
> +				MX51_PAD_DISP1_DAT11__DISP1_DAT11	0x5
> +				MX51_PAD_DISP1_DAT12__DISP1_DAT12	0x5
> +				MX51_PAD_DISP1_DAT13__DISP1_DAT13	0x5
> +				MX51_PAD_DISP1_DAT14__DISP1_DAT14	0x5
> +				MX51_PAD_DISP1_DAT15__DISP1_DAT15	0x5
> +				MX51_PAD_DISP1_DAT16__DISP1_DAT16	0x5
> +				MX51_PAD_DISP1_DAT17__DISP1_DAT17	0x5
> +				MX51_PAD_DISP1_DAT18__DISP1_DAT18	0x5
> +				MX51_PAD_DISP1_DAT19__DISP1_DAT19	0x5
> +				MX51_PAD_DISP1_DAT20__DISP1_DAT20	0x5
> +				MX51_PAD_DISP1_DAT21__DISP1_DAT21	0x5
> +				MX51_PAD_DISP1_DAT22__DISP1_DAT22	0x5
> +				MX51_PAD_DISP1_DAT23__DISP1_DAT23	0x5
> +				MX51_PAD_DI1_PIN2__DI1_PIN2		0x5 /* HSYNC */
> +				MX51_PAD_DI1_PIN3__DI1_PIN3		0x5 /* VSYNC */
> +			>;
> +		};
> +
> +		pinctrl_kpp: kppgrp-1 {

The '-1' suffix means nothing and can just be dropped.

> +			fsl,pins = <
> +				MX51_PAD_KEY_ROW0__KEY_ROW0		0xe0
> +				MX51_PAD_KEY_ROW1__KEY_ROW1		0xe0
> +				MX51_PAD_KEY_ROW2__KEY_ROW2		0xe0
> +				MX51_PAD_KEY_ROW3__KEY_ROW3		0xe0
> +				MX51_PAD_KEY_COL0__KEY_COL0		0xe8
> +				MX51_PAD_KEY_COL1__KEY_COL1		0xe8
> +				MX51_PAD_KEY_COL2__KEY_COL2		0xe8
> +				MX51_PAD_KEY_COL3__KEY_COL3		0xe8
> +				MX51_PAD_KEY_COL4__KEY_COL4		0xe8
> +				MX51_PAD_KEY_COL5__KEY_COL5		0xe8
> +			>;
> +		};
> +
> +		pinctrl_lcd_pwr: lcd-pwrgrp {
> +			fsl,pins = <
> +				MX51_PAD_CSI2_HSYNC__GPIO4_14		0x4
> +			>;
> +		};
> +
> +		pinctrl_lcd_reset: lcd-resetgrp {
> +			fsl,pins = <
> +				MX51_PAD_CSI2_VSYNC__GPIO4_13		0x4
> +			>;
> +		};
> +
> +		pinctrl_pwm1: pwm1grp {
> +			fsl,pins = <
> +				MX51_PAD_GPIO1_2__PWM1_PWMO		0xf4
> +			>;
> +		};
> +
> +		pinctrl_ssi1: ssi1grp {
> +			fsl,pins = <
> +				MX51_PAD_AUD3_BB_RXD__AUD3_RXD		0x5
> +				MX51_PAD_AUD3_BB_TXD__AUD3_TXD		0x5
> +				MX51_PAD_AUD3_BB_CK__AUD3_TXC		0x5
> +				MX51_PAD_AUD3_BB_FS__AUD3_TXFS		0x5
> +			>;
> +		};
> +
> +		pinctrl_ssi2: ssi2grp {
> +			fsl,pins = <
> +				MX51_PAD_EIM_D29__AUD6_RXD		0x5
> +				MX51_PAD_EIM_D28__AUD6_TXD		0x5
> +				MX51_PAD_EIM_D30__AUD6_TXC		0x5
> +				MX51_PAD_EIM_D31__AUD6_TXFS		0x5
> +			>;
> +		};
> +
> +		pinctrl_stk5led: stk5ledgrp {
> +			fsl,pins = <
> +				MX51_PAD_CSI2_D13__GPIO4_10		0x20e4
> +			>;
> +		};
> +
> +		pinctrl_tsc2007: tsc2007grp {
> +			fsl,pins = <
> +				MX51_PAD_DI1_D0_CS__GPIO3_3		0xc0	/* Pen-Down Interrupt */
> +			>;
> +		};
> +
> +		pinctrl_uart1: uart1grp {
> +			fsl,pins = <
> +				MX51_PAD_UART1_RXD__UART1_RXD		0xc1
> +				MX51_PAD_UART1_TXD__UART1_TXD		0xc5
> +				MX51_PAD_UART1_RTS__UART1_RTS		0xc1
> +				MX51_PAD_UART1_CTS__UART1_CTS		0xc5
> +			>;
> +		};
> +
> +		pinctrl_uart2: uart2grp {
> +			fsl,pins = <
> +				MX51_PAD_UART2_RXD__UART2_RXD		0xc1
> +				MX51_PAD_UART2_TXD__UART2_TXD		0xc5
> +				MX51_PAD_EIM_D26__UART2_RTS		0xc1
> +				MX51_PAD_EIM_D25__UART2_CTS		0xc5
> +			>;
> +		};
> +
> +		pinctrl_uart3: uart3grp {
> +			fsl,pins = <
> +				MX51_PAD_UART3_RXD__UART3_RXD		0xc1
> +				MX51_PAD_UART3_TXD__UART3_TXD		0xc5
> +				MX51_PAD_EIM_D18__UART3_RTS		0xc1
> +				MX51_PAD_EIM_D17__UART3_CTS		0xc5
> +			>;
> +		};
> +
> +		pinctrl_wlan0: wlan0grp {
> +			fsl,pins = <
> +				MX51_PAD_CSI2_PIXCLK__GPIO4_15		0x04 /* WL_EN */
> +				MX51_PAD_GPIO1_5__GPIO1_5		0xf0 /* WL_IRQ */
> +			>;
> +		};
> +	};
> +};
> +
> +&ipu_di0_disp0 {
> +	remote-endpoint = <&display0_in>;
> +};
> +
> +&kpp {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_kpp>;
> +	linux,keymap = <	/* sample keymap */
> +		MATRIX_KEY(0, 0, KEY_POWER)
> +		MATRIX_KEY(0, 1, KEY_KP0)
> +		MATRIX_KEY(0, 2, KEY_KP1)
> +		MATRIX_KEY(0, 3, KEY_KP2)
> +		MATRIX_KEY(1, 0, KEY_KP3)
> +		MATRIX_KEY(1, 1, KEY_KP4)
> +		MATRIX_KEY(1, 2, KEY_KP5)
> +		MATRIX_KEY(1, 3, KEY_KP6)
> +		MATRIX_KEY(2, 0, KEY_KP7)
> +		MATRIX_KEY(2, 1, KEY_KP8)
> +		MATRIX_KEY(2, 2, KEY_KP9)
> +	>;
> +	status = "okay";
> +};
> +
> +&nfc {
> +	nand-bus-width = <8>;
> +	nand-ecc-mode = "hw";
> +	nand-on-flash-bbt;
> +	status = "okay";
> +};
> +
> +&pwm1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_pwm1>;
> +};
> +
> +&ssi1 {
> +	fsl,mode = "i2s-slave";

The "i2s-slave" of fsl,mode is deprecated and can be dropped.

Shawn

> +	codec-handle = <&sgtl5000>;
> +	status = "okay";
> +};
> +
> +&ssi2 {
> +	status = "disabled";
> +};
> +
> +&uart1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart1>;
> +	fsl,uart-has-rtscts;
> +	status = "okay";
> +};
> +
> +&uart2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart2>;
> +	fsl,uart-has-rtscts;
> +	status = "okay";
> +};
> +
> +&uart3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart3>;
> +	fsl,uart-has-rtscts;
> +	status = "okay";
> +};
> +
> +&usbh1 {
> +	phy_type = "ulpi";
> +	fsl,usphy = <&usbh1phy>;
> +	disable-over-current;
> +	status = "okay";
> +};
> +
> +&usbotg {
> +	dr_mode = "peripheral";
> +	phy_type = "utmi_wide";
> +	disable-over-current;
> +	status = "okay";
> +};
> -- 
> 2.1.4
> 
> 
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