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Date:   Mon, 11 Jun 2018 13:13:58 +0800
From:   Shawn Guo <shawnguo@kernel.org>
To:     Lukasz Majewski <lukma@denx.de>
Cc:     Fabio Estevam <fabio.estevam@nxp.com>,
        linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Russell King <linux@armlinux.org.uk>,
        Sascha Hauer <kernel@pengutronix.de>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2] ARM: DTS: imx53: Add support for imx53 HSC/DDC boards
 from K+P
Message-ID: <20180611051357.GA16091@dragon>
References: <20180509153428.1440-1-lukma@denx.de>
 <20180519121506.32344-1-lukma@denx.de>
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On Sat, May 19, 2018 at 02:15:06PM +0200, Lukasz Majewski wrote:
> This commit provides support for HSC and DDC boards from
> Kieback&Peter GmbH vendor.
> 
> Signed-off-by: Lukasz Majewski <lukma@denx.de>
> ---
> Changes for v2:
> 
> - Remove not needed #address-cells and #size-cells in
>   the gpio_buttons node to pass make W=1
> - Rename button@{12} to button_{kalt|pwr} nodes to pass make W=1
> - Include #include <dt-bindings/input/input.h> to use KEY_F6|F7 directly
> 
> ---
>  arch/arm/boot/dts/Makefile         |   2 +
>  arch/arm/boot/dts/imx53-kp-ddc.dts | 146 ++++++++++++++++++++++++++++
>  arch/arm/boot/dts/imx53-kp-hsc.dts |  51 ++++++++++
>  arch/arm/boot/dts/imx53-kp.dtsi    | 190 +++++++++++++++++++++++++++++++++++++
>  4 files changed, 389 insertions(+)
>  create mode 100644 arch/arm/boot/dts/imx53-kp-ddc.dts
>  create mode 100644 arch/arm/boot/dts/imx53-kp-hsc.dts
>  create mode 100644 arch/arm/boot/dts/imx53-kp.dtsi
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index fbc04b0db781..00854a5b6ac4 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -360,6 +360,8 @@ dtb-$(CONFIG_SOC_IMX51) += \
>  dtb-$(CONFIG_SOC_IMX53) += \
>  	imx53-ard.dtb \
>  	imx53-cx9020.dtb \
> +	imx53-kp-ddc.dtb \
> +	imx53-kp-hsc.dtb \
>  	imx53-m53evk.dtb \
>  	imx53-mba53.dtb \
>  	imx53-ppd.dtb \
> diff --git a/arch/arm/boot/dts/imx53-kp-ddc.dts b/arch/arm/boot/dts/imx53-kp-ddc.dts
> new file mode 100644
> index 000000000000..acaf477a52c5
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx53-kp-ddc.dts
> @@ -0,0 +1,146 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright 2018
> + * Lukasz Majewski, DENX Software Engineering, lukma@denx.de
> + */
> +
> +/dts-v1/;
> +#include "imx53-kp.dtsi"
> +
> +/ {
> +	model = "K+P imx53 DDC";
> +	compatible = "kiebackpeter,imx53-ddc", "fsl,imx53";
> +
> +	backlight_lcd: backlight {
> +		compatible = "pwm-backlight";
> +		pwms = <&pwm2 0 50000>;
> +		power-supply = <&reg_backlight>;
> +		brightness-levels = <0 24 28 32 36
> +				     40 44 48 52 56
> +				     60 64 68 72 76
> +				     80 84 88 92 96 100>;
> +		default-brightness-level = <20>;
> +	};
> +
> +	lcd_display: disp1 {

display for node node.

> +		compatible = "fsl,imx-parallel-display";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		interface-pix-fmt = "rgb24";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_disp>;
> +
> +		port@0 {
> +			reg = <0>;
> +
> +			display1_in: endpoint {
> +				remote-endpoint = <&ipu_di1_disp1>;
> +			};
> +		};
> +
> +		port@1 {
> +			reg = <1>;
> +
> +			lcd_display_out: endpoint {
> +				remote-endpoint = <&lcd_panel_in>;
> +			};
> +		};
> +	};
> +
> +	lcd_panel: lcd-panel {
> +		compatible = "koe,tx14d24vm1bpa";

Undefined compatible?

> +		backlight = <&backlight_lcd>;
> +		power-supply = <&reg_3v3>;
> +
> +		port {
> +			lcd_panel_in: endpoint {
> +				remote-endpoint = <&lcd_display_out>;
> +			};
> +		};
> +	};
> +
> +	reg_backlight: regulator-backlight {
> +		compatible = "regulator-fixed";
> +		regulator-name = "backlight-supply";
> +		regulator-min-microvolt = <15000000>;
> +		regulator-max-microvolt = <15000000>;
> +		regulator-always-on;
> +	};
> +};
> +
> +&i2c3 {
> +	adc@48 {
> +		compatible = "ti,ads1015";
> +		reg = <0x48>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		channel@4 {
> +			reg = <4>;
> +			ti,gain = <2>;
> +			ti,datarate = <4>;
> +		};
> +
> +		channel@6 {
> +			reg = <6>;
> +			ti,gain = <2>;
> +			ti,datarate = <4>;
> +		};
> +	};
> +
> +	gpio_expander2@21 {

Use hyphen instead of underscore in node name.

> +		compatible = "nxp,pcf8574";
> +		reg = <0x21>;
> +		interrupts = <109>;
> +		#gpio-cells = <2>;
> +		gpio-controller;
> +	};
> +};
> +
> +&iomuxc {
> +	imx53-kp-ddc {
> +		pinctrl_disp: dispgrp {
> +			fsl,pins = <
> +				MX53_PAD_EIM_A16__IPU_DI1_DISP_CLK      0x4
> +				MX53_PAD_EIM_DA10__IPU_DI1_PIN15        0x4
> +				MX53_PAD_EIM_DA9__IPU_DISP1_DAT_0       0x4
> +				MX53_PAD_EIM_DA8__IPU_DISP1_DAT_1       0x4
> +				MX53_PAD_EIM_DA7__IPU_DISP1_DAT_2       0x4
> +				MX53_PAD_EIM_DA6__IPU_DISP1_DAT_3       0x4
> +				MX53_PAD_EIM_DA5__IPU_DISP1_DAT_4       0x4
> +				MX53_PAD_EIM_DA4__IPU_DISP1_DAT_5       0x4
> +				MX53_PAD_EIM_DA3__IPU_DISP1_DAT_6       0x4
> +				MX53_PAD_EIM_DA2__IPU_DISP1_DAT_7       0x4
> +				MX53_PAD_EIM_DA1__IPU_DISP1_DAT_8       0x4
> +				MX53_PAD_EIM_DA0__IPU_DISP1_DAT_9       0x4
> +				MX53_PAD_EIM_EB1__IPU_DISP1_DAT_10      0x4
> +				MX53_PAD_EIM_EB0__IPU_DISP1_DAT_11      0x4
> +				MX53_PAD_EIM_A17__IPU_DISP1_DAT_12      0x4
> +				MX53_PAD_EIM_A18__IPU_DISP1_DAT_13      0x4
> +				MX53_PAD_EIM_A19__IPU_DISP1_DAT_14      0x4
> +				MX53_PAD_EIM_A20__IPU_DISP1_DAT_15      0x4
> +				MX53_PAD_EIM_A21__IPU_DISP1_DAT_16      0x4
> +				MX53_PAD_EIM_A22__IPU_DISP1_DAT_17      0x4
> +				MX53_PAD_EIM_A23__IPU_DISP1_DAT_18      0x4
> +				MX53_PAD_EIM_A24__IPU_DISP1_DAT_19      0x4
> +				MX53_PAD_EIM_D31__IPU_DISP1_DAT_20      0x4
> +				MX53_PAD_EIM_D30__IPU_DISP1_DAT_21      0x4
> +				MX53_PAD_EIM_D26__IPU_DISP1_DAT_22      0x4
> +				MX53_PAD_EIM_D27__IPU_DISP1_DAT_23      0x4
> +				MX53_PAD_GPIO_1__PWM2_PWMO 0x4
> +			>;
> +		};
> +	};
> +};
> +
> +&ipu_di1_disp1 {
> +	remote-endpoint = <&display1_in>;
> +};
> +
> +&fec {
> +	status = "okay";
> +};

Sort the labeled nodes alphabetically in label name.

> +
> +&pmic {
> +	fsl,mc13xxx-uses-touch;
> +};
> diff --git a/arch/arm/boot/dts/imx53-kp-hsc.dts b/arch/arm/boot/dts/imx53-kp-hsc.dts
> new file mode 100644
> index 000000000000..d68cdd5da819
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx53-kp-hsc.dts
> @@ -0,0 +1,51 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright 2018
> + * Lukasz Majewski, DENX Software Engineering, lukma@denx.de
> + */
> +
> +/dts-v1/;
> +#include "imx53-kp.dtsi"
> +
> +/ {
> +	model = "K+P imx53 HSC";
> +	compatible = "kiebackpeter,imx53-hsc", "fsl,imx53";
> +};
> +
> +&fec {
> +	status = "okay";

Have a newline between property list and child node.

> +	fixed-link { /* RMII fixed link to LAN9303 */
> +		speed = <100>;
> +		full-duplex;
> +	};
> +};
> +
> +&i2c3 {
> +	switch: switch@a {
> +		compatible = "smsc,lan9303-i2c";
> +		reg = <0xa>;
> +		reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>;
> +		reset-duration = <400>;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 { /* RMII fixed link to master */
> +				reg = <0>;
> +				label = "cpu";
> +				ethernet = <&fec>;
> +			};
> +
> +			port@1 { /* external port 1 */
> +				reg = <1>;
> +				label = "lan1";
> +			};
> +
> +			port@2 { /* external port 2 */
> +				reg = <2>;
> +				label = "lan2";
> +			};
> +		};
> +	};
> +};
> diff --git a/arch/arm/boot/dts/imx53-kp.dtsi b/arch/arm/boot/dts/imx53-kp.dtsi
> new file mode 100644
> index 000000000000..f87266843842
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx53-kp.dtsi
> @@ -0,0 +1,190 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright 2018
> + * Lukasz Majewski, DENX Software Engineering, lukma@denx.de
> + */
> +
> +/dts-v1/;
> +#include "imx53-tqma53.dtsi"
> +#include <dt-bindings/input/input.h>
> +
> +/ {
> +	buzzer {
> +		compatible = "pwm-beeper";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_buzzer>;
> +

Drop this newline.

> +		pwms = <&pwm1 0 500000>;
> +	};
> +
> +	gpio_buttons {

Use hyphen.

> +		compatible = "gpio-keys";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_gpiobuttons>;
> +
> +		button_kalt {

Ditto

> +			label = "Kaltstart";
> +			linux,code = <KEY_F6>;
> +			gpios = <&gpio2 26 GPIO_ACTIVE_HIGH>;
> +		};
> +
> +		button_pwr {

Ditto

> +			label = "PowerFailInterrupt";
> +			linux,code = <KEY_F7>;
> +			gpios = <&gpio3 22 GPIO_ACTIVE_HIGH>;
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_leds>;
> +
> +		led_bus {

Ditto

> +			label = "bus";
> +			gpios = <&gpio2 30 GPIO_ACTIVE_HIGH>;
> +			linux,default-trigger = "gpio";
> +			default-state = "off";
> +		};
> +
> +		led_error {

Ditto

> +			label = "error";
> +			gpios = <&gpio3 28 GPIO_ACTIVE_HIGH>;
> +			linux,default-trigger = "gpio";
> +			default-state = "off";
> +		};
> +
> +		led_flash {

Ditto

> +			label = "flash";
> +			gpios = <&gpio5 0 GPIO_ACTIVE_HIGH>;
> +			linux,default-trigger = "heartbeat";
> +		};
> +	};
> +
> +	reg_3v3: regulator-3v3 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "3V3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		regulator-always-on;
> +	};
> +};
> +
> +&can1 {
> +	status = "okay";
> +};
> +
> +&can2 {
> +	status = "okay";
> +};
> +
> +&i2c3 {
> +	status = "okay";
> +
> +	gpio_expander1@22 {

Ditto

Shawn

> +		compatible = "nxp,pcf8574";
> +		reg = <0x22>;
> +		interrupts = <109>;
> +		#gpio-cells = <2>;
> +		gpio-controller;
> +	};
> +
> +	rtc@51 {
> +		compatible = "nxp,pcf8563";
> +		reg = <0x51>;
> +	};
> +};
> +
> +&iomuxc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_kp_common>;
> +
> +	imx53-kp-common {
> +		pinctrl_buzzer: buzzergrp {
> +			fsl,pins = <
> +				MX53_PAD_SD1_DATA3__PWM1_PWMO 0x1e4
> +			>;
> +		};
> +
> +		pinctrl_gpiobuttons: gpiobuttonsgrp {
> +			fsl,pins = <
> +				MX53_PAD_EIM_RW__GPIO2_26 0x1e4
> +				MX53_PAD_EIM_D22__GPIO3_22 0x1e4
> +			>;
> +		};
> +
> +		pinctrl_kp_common: kpcommongrp {
> +			fsl,pins = <
> +				MX53_PAD_EIM_CS0__GPIO2_23 0x1e4
> +				MX53_PAD_GPIO_19__GPIO4_5  0x1e4
> +				MX53_PAD_PATA_DATA6__GPIO2_6 0x1e4
> +				MX53_PAD_PATA_DATA7__GPIO2_7 0xe0
> +				MX53_PAD_CSI0_DAT14__GPIO6_0 0x1e4
> +				MX53_PAD_CSI0_DAT16__GPIO6_2 0x1e4
> +				MX53_PAD_CSI0_DAT18__GPIO6_4 0x1e4
> +				MX53_PAD_EIM_D17__GPIO3_17 0x1e4
> +				MX53_PAD_EIM_D18__GPIO3_18 0x1e4
> +				MX53_PAD_EIM_D21__GPIO3_21 0x1e4
> +				MX53_PAD_EIM_D29__GPIO3_29 0x1e4
> +				MX53_PAD_EIM_DA11__GPIO3_11 0x1e4
> +				MX53_PAD_EIM_DA13__GPIO3_13 0x1e4
> +				MX53_PAD_EIM_DA14__GPIO3_14 0x1e4
> +				MX53_PAD_SD1_DATA0__GPIO1_16 0x1e4
> +				MX53_PAD_SD1_CMD__GPIO1_18 0x1e4
> +				MX53_PAD_SD1_CLK__GPIO1_20 0x1e4
> +			>;
> +		};
> +
> +		pinctrl_leds: ledgrp {
> +			fsl,pins = <
> +				MX53_PAD_EIM_EB2__GPIO2_30 0x1d4
> +				MX53_PAD_EIM_D28__GPIO3_28 0x1d4
> +				MX53_PAD_EIM_WAIT__GPIO5_0 0x1d4
> +			>;
> +		};
> +
> +		pinctrl_uart4: uart4grp {
> +			fsl,pins = <
> +				MX53_PAD_CSI0_DAT12__UART4_TXD_MUX 0x1e4
> +				MX53_PAD_CSI0_DAT13__UART4_RXD_MUX 0x1e4
> +			>;
> +		};
> +	};
> +};
> +
> +&pinctrl_uart1 {
> +	fsl,pins = <
> +		MX53_PAD_EIM_D23__GPIO3_23 0x1e4
> +		MX53_PAD_EIM_EB3__GPIO2_31 0x1e4
> +		MX53_PAD_EIM_D24__GPIO3_24 0x1e4
> +		MX53_PAD_EIM_D25__GPIO3_25 0x1e4
> +		MX53_PAD_EIM_D19__GPIO3_19 0x1e4
> +		MX53_PAD_EIM_D20__GPIO3_20 0x1e4
> +	>;
> +};
> +
> +&uart1 {
> +	status = "okay";
> +};
> +
> +&uart2 {
> +	status = "okay";
> +};
> +
> +&uart3 {
> +	status = "okay";
> +};
> +
> +&uart4 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart4>;
> +	status = "okay";
> +};
> +
> +&usbh1 {
> +	status = "okay";
> +};
> +
> +&usbphy0 {
> +	status = "disabled";
> +};
> -- 
> 2.11.0
>