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Date:   Sun, 23 May 2021 10:25:35 +0800
From:   Shawn Guo <shawnguo@kernel.org>
To:     dillon.minfei@gmail.com
Cc:     festevam@gmail.com, s.riedmueller@phytec.de,
        matthias.schiffer@ew.tq-group.com, leoyang.li@nxp.com,
        arnd@arndb.de, olof@lixom.net, s.hauer@pengutronix.de,
        kernel@pengutronix.de, prabhakar.csengg@gmail.com,
        mchehab@kernel.org, mchehab+huawei@kernel.org,
        krzysztof.kozlowski@canonical.com, krzk@kernel.org,
        robh+dt@kernel.org, linux@rempel-privat.de,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com,
        linux-media@vger.kernel.org
Subject: Re: [PATCH v5 3/4] arm: dts: imx: Add i.mx6q DaSheng COM-9XX SBC
 board support
Message-ID: <20210523022534.GJ8194@dragon>
References: <1620104993-5850-1-git-send-email-dillon.minfei@gmail.com>
 <1620104993-5850-4-git-send-email-dillon.minfei@gmail.com>
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On Tue, May 04, 2021 at 01:09:52PM +0800, dillon.minfei@gmail.com wrote:
> From: Dillon Min <dillon.minfei@gmail.com>
> 
> The DaSheng Com-9xx is and ARM based signle board computer (SBC)
> featuring:
> - i.MX6Q
> - 2GiB LPDDR3 DRAM
> - 8GiB eMMC 5.0 FLASH
> - 4MiB SPI Flash
> - USB 2.0 Host/Device
> - Multiple multi-protocol RS232/RS485 Serial ports
> - microSD socket
> - 5V DC power input
> - HDMI1.4a,1080p@60
> - RGMIIx1 Gigabit Ethernet
> - CSI0x1, connect with ov2659
> 
> Signed-off-by: Dillon Min <dillon.minfei@gmail.com>

Idiomatically we use 'ARM: dts: ...' for arch/arm DTS patch prefix.

> ---
> 
> v5:
> - no code change, just change my git author name from lower case to higher case
> 
>  arch/arm/boot/dts/Makefile        |   1 +
>  arch/arm/boot/dts/imx6q-ds.dts    |  17 ++
>  arch/arm/boot/dts/imx6qdl-ds.dtsi | 460 ++++++++++++++++++++++++++++++++++++++
>  3 files changed, 478 insertions(+)
>  create mode 100644 arch/arm/boot/dts/imx6q-ds.dts
>  create mode 100644 arch/arm/boot/dts/imx6qdl-ds.dtsi
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index a19c5ab9df84..425fe17ef7c1 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -510,6 +510,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
>  	imx6q-display5-tianma-tm070-1280x768.dtb \
>  	imx6q-dmo-edmqmx6.dtb \
>  	imx6q-dms-ba16.dtb \
> +	imx6q-ds.dtb \
>  	imx6q-emcon-avari.dtb \
>  	imx6q-evi.dtb \
>  	imx6q-gk802.dtb \
> diff --git a/arch/arm/boot/dts/imx6q-ds.dts b/arch/arm/boot/dts/imx6q-ds.dts
> new file mode 100644
> index 000000000000..b0a63a133977
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx6q-ds.dts
> @@ -0,0 +1,17 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +//
> +// Copyright 2021 Dillon Min <dillon.minfei@gmail.com>
> +//
> +// Based on imx6qdl-sabresd.dtsi which is:
> +// Copyright 2012 Freescale Semiconductor, Inc.
> +// Copyright 2011 Linaro Ltd.
> +
> +/dts-v1/;
> +
> +#include "imx6q.dtsi"
> +#include "imx6qdl-ds.dtsi"
> +
> +/ {
> +	model = "DaSheng i.MX6 Quad Com-9xx Board";
> +	compatible = "ds,imx6q-sbc", "fsl,imx6q";
> +};
> diff --git a/arch/arm/boot/dts/imx6qdl-ds.dtsi b/arch/arm/boot/dts/imx6qdl-ds.dtsi
> new file mode 100644
> index 000000000000..a2069caf4ea7
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx6qdl-ds.dtsi
> @@ -0,0 +1,460 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +//
> +// Copyright 2021 Dillon Min <dillon.minfei@gmail.com>
> +//
> +// Based on imx6qdl-sabresd.dtsi which is:
> +// Copyright 2012 Freescale Semiconductor, Inc.
> +// Copyright 2011 Linaro Ltd.
> +
> +#include <dt-bindings/clock/imx6qdl-clock.h>
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +
> +/ {
> +	chosen {
> +		stdout-path = &uart4;
> +	};
> +
> +	memory@10000000 {
> +		device_type = "memory";
> +		reg = <0x10000000 0x80000000>;
> +	};
> +
> +	reg_usb_otg_vbus: regulator-usb-otg-vbus {
> +		compatible = "regulator-fixed";
> +		regulator-name = "usb_otg_vbus";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		regulator-always-on;
> +	};
> +
> +	reg_usb_h1_vbus: regulator-usb-h1-vbus {
> +		compatible = "regulator-fixed";
> +		regulator-name = "usb_h1_vbus";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		regulator-always-on;

always-on is meaningless for fixed regulators that do not have on/off
control.

I fixed them up and applied the patch.

Shawn

> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_gpio_leds>;
> +
> +		led-0 {
> +			gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>;
> +			default-state = "on";
> +			linux,default-trigger = "heartbeat";
> +		};
> +	};
> +};
> +
> +&ipu1_csi0_from_ipu1_csi0_mux {
> +	bus-width = <8>;
> +	data-shift = <12>; /* Lines 19:12 used */
> +	hsync-active = <1>;
> +	vsync-active = <1>;
> +};
> +
> +&ipu1_csi0_mux_from_parallel_sensor {
> +	remote-endpoint = <&ov2659_to_ipu1_csi0_mux>;
> +};
> +
> +&ipu1_csi0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_ipu1_csi0>;
> +	status = "okay";
> +};
> +
> +&ecspi1 {
> +	cs-gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_ecspi1>, <&pinctrl_ecspi1_gpio>;
> +	status = "okay";
> +
> +	m25p80: flash@0 {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		compatible = "st,m25p80", "jedec,spi-nor";
> +		spi-max-frequency = <20000000>;
> +		reg = <0>;
> +	};
> +};
> +
> +&fec {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_enet>;
> +	phy-mode = "rgmii-id";
> +	phy-handle = <&phy>;
> +	fsl,magic-packet;
> +	status = "okay";
> +
> +	mdio {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		phy: ethernet-phy@1 {
> +			reg = <1>;
> +			qca,clk-out-frequency = <125000000>;
> +			reset-gpios = <&gpio4 10 GPIO_ACTIVE_LOW>;
> +			reset-assert-us = <10000>;
> +		};
> +	};
> +};
> +
> +&hdmi {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_hdmi_cec>;
> +	ddc-i2c-bus = <&i2c3>;
> +	status = "okay";
> +};
> +
> +&i2c2 {
> +	clock-frequency = <100000>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_i2c2>;
> +	status = "okay";
> +
> +	pfuze100: pmic@8 {
> +		compatible = "fsl,pfuze100";
> +		reg = <0x08>;
> +
> +		regulators {
> +			sw1a_reg: sw1ab {
> +				regulator-min-microvolt = <300000>;
> +				regulator-max-microvolt = <1875000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +				regulator-ramp-delay = <6250>;
> +			};
> +
> +			sw1c_reg: sw1c {
> +				regulator-min-microvolt = <300000>;
> +				regulator-max-microvolt = <1875000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +				regulator-ramp-delay = <6250>;
> +			};
> +
> +			sw2_reg: sw2 {
> +				regulator-min-microvolt = <800000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +				regulator-ramp-delay = <6250>;
> +			};
> +
> +			sw3a_reg: sw3a {
> +				regulator-min-microvolt = <400000>;
> +				regulator-max-microvolt = <1975000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +			};
> +
> +			sw3b_reg: sw3b {
> +				regulator-min-microvolt = <400000>;
> +				regulator-max-microvolt = <1975000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +			};
> +
> +			sw4_reg: sw4 {
> +				regulator-min-microvolt = <800000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;
> +			};
> +
> +			swbst_reg: swbst {
> +				regulator-min-microvolt = <5000000>;
> +				regulator-max-microvolt = <5150000>;
> +			};
> +
> +			snvs_reg: vsnvs {
> +				regulator-min-microvolt = <1000000>;
> +				regulator-max-microvolt = <3000000>;
> +				regulator-boot-on;
> +				regulator-always-on;
> +			};
> +
> +			vref_reg: vrefddr {
> +				regulator-boot-on;
> +				regulator-always-on;
> +			};
> +
> +			vgen1_reg: vgen1 {
> +				regulator-min-microvolt = <800000>;
> +				regulator-max-microvolt = <1550000>;
> +			};
> +
> +			vgen2_reg: vgen2 {
> +				regulator-min-microvolt = <800000>;
> +				regulator-max-microvolt = <1550000>;
> +			};
> +
> +			vgen3_reg: vgen3 {
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <3300000>;
> +			};
> +
> +			vgen4_reg: vgen4 {
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;
> +			};
> +
> +			vgen5_reg: vgen5 {
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;
> +			};
> +
> +			vgen6_reg: vgen6 {
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;
> +			};
> +		};
> +	};
> +};
> +
> +&i2c3 {
> +	clock-frequency = <100000>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_i2c3>;
> +	status = "okay";
> +
> +	ov2659: camera@30 {
> +		compatible = "ovti,ov2659";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_ov2659>;
> +		clocks = <&clks IMX6QDL_CLK_CKO>;
> +		clock-names = "xvclk";
> +		reg = <0x30>;
> +		powerdown-gpios = <&gpio7 11 GPIO_ACTIVE_HIGH>;
> +		reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
> +		status = "okay";
> +
> +		port {
> +			ov2659_to_ipu1_csi0_mux: endpoint {
> +				remote-endpoint = <&ipu1_csi0_mux_from_parallel_sensor>;
> +				link-frequencies = /bits/ 64 <70000000>;
> +				bus-width = <8>;
> +				hsync-active = <1>;
> +				vsync-active = <1>;
> +			};
> +		};
> +	};
> +};
> +
> +&iomuxc {
> +	pinctrl_ecspi1: ecspi1grp {
> +		fsl,pins = <
> +			MX6QDL_PAD_EIM_D16__ECSPI1_SCLK		0x100b1
> +			MX6QDL_PAD_EIM_D18__ECSPI1_MOSI		0x100b1
> +			MX6QDL_PAD_EIM_D17__ECSPI1_MISO		0x100b1
> +		>;
> +	};
> +
> +	pinctrl_ecspi1_gpio: ecspi1grpgpiogrp {
> +		fsl,pins = <
> +			MX6QDL_PAD_KEY_ROW1__GPIO4_IO09		0x1b0b0
> +			MX6QDL_PAD_ENET_RXD0__GPIO1_IO27	0x1b0b0
> +		>;
> +	};
> +
> +	pinctrl_enet: enetgrp {
> +		fsl,pins = <
> +			MX6QDL_PAD_ENET_MDIO__ENET_MDIO		0x1b0b0
> +			MX6QDL_PAD_ENET_MDC__ENET_MDC		0x1b0b0
> +			MX6QDL_PAD_RGMII_TXC__RGMII_TXC		0x1b030
> +			MX6QDL_PAD_RGMII_TD0__RGMII_TD0		0x1b030
> +			MX6QDL_PAD_RGMII_TD1__RGMII_TD1		0x1b030
> +			MX6QDL_PAD_RGMII_TD2__RGMII_TD2		0x1b030
> +			MX6QDL_PAD_RGMII_TD3__RGMII_TD3		0x1b030
> +			MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL	0x1b030
> +			MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK	0x1b0b0
> +			MX6QDL_PAD_RGMII_RXC__RGMII_RXC		0x1b030
> +			MX6QDL_PAD_RGMII_RD0__RGMII_RD0		0x1b030
> +			MX6QDL_PAD_RGMII_RD1__RGMII_RD1		0x1b030
> +			MX6QDL_PAD_RGMII_RD2__RGMII_RD2		0x1b030
> +			MX6QDL_PAD_RGMII_RD3__RGMII_RD3		0x1b030
> +			MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL	0x1b030
> +			MX6QDL_PAD_KEY_COL2__GPIO4_IO10         0x1b0b0
> +		>;
> +	};
> +
> +	pinctrl_hdmi_cec: hdmicecgrp {
> +		fsl,pins = <
> +			MX6QDL_PAD_EIM_A25__HDMI_TX_CEC_LINE	0x1f8b0
> +		>;
> +	};
> +
> +	pinctrl_i2c2: i2c2grp {
> +		fsl,pins = <
> +			MX6QDL_PAD_EIM_EB2__I2C2_SCL		0x4001b8b1
> +			MX6QDL_PAD_KEY_ROW3__I2C2_SDA		0x4001b8b1
> +		>;
> +	};
> +
> +	pinctrl_i2c3: i2c3grp {
> +		fsl,pins = <
> +			MX6QDL_PAD_GPIO_5__I2C3_SCL		0x4001b8b1
> +			MX6QDL_PAD_GPIO_6__I2C3_SDA		0x4001b8b1
> +		>;
> +	};
> +
> +	pinctrl_ipu1_csi0: ipu1csi0grp {
> +		fsl,pins = <
> +			MX6QDL_PAD_CSI0_DAT12__IPU1_CSI0_DATA12    0x1b0b0
> +			MX6QDL_PAD_CSI0_DAT13__IPU1_CSI0_DATA13    0x1b0b0
> +			MX6QDL_PAD_CSI0_DAT14__IPU1_CSI0_DATA14    0x1b0b0
> +			MX6QDL_PAD_CSI0_DAT15__IPU1_CSI0_DATA15    0x1b0b0
> +			MX6QDL_PAD_CSI0_DAT16__IPU1_CSI0_DATA16    0x1b0b0
> +			MX6QDL_PAD_CSI0_DAT17__IPU1_CSI0_DATA17    0x1b0b0
> +			MX6QDL_PAD_CSI0_DAT18__IPU1_CSI0_DATA18    0x1b0b0
> +			MX6QDL_PAD_CSI0_DAT19__IPU1_CSI0_DATA19    0x1b0b0
> +			MX6QDL_PAD_CSI0_PIXCLK__IPU1_CSI0_PIXCLK   0x1b0b0
> +			MX6QDL_PAD_CSI0_MCLK__IPU1_CSI0_HSYNC      0x1b0b0
> +			MX6QDL_PAD_CSI0_VSYNC__IPU1_CSI0_VSYNC     0x1b0b0
> +		>;
> +	};
> +
> +	pinctrl_ov2659: ov2659grp {
> +		fsl,pins = <
> +			MX6QDL_PAD_GPIO_16__GPIO7_IO11		0x1b0b0
> +			MX6QDL_PAD_GPIO_7__GPIO1_IO07		0x1b0b0
> +			MX6QDL_PAD_GPIO_0__CCM_CLKO1		0x130b0
> +		>;
> +	};
> +
> +	pinctrl_uart4: uart4grp {
> +		fsl,pins = <
> +			MX6QDL_PAD_KEY_COL0__UART4_TX_DATA	0x1b0b1
> +			MX6QDL_PAD_KEY_ROW0__UART4_RX_DATA	0x1b0b1
> +		>;
> +	};
> +
> +	pinctrl_usbotg: usbotggrp {
> +		fsl,pins = <
> +			MX6QDL_PAD_ENET_RX_ER__USB_OTG_ID	0x17059
> +		>;
> +	};
> +
> +	pinctrl_usdhc1: usdhc1grp {
> +		fsl,pins = <
> +			MX6QDL_PAD_SD1_CMD__SD1_CMD		0x17059
> +			MX6QDL_PAD_SD1_CLK__SD1_CLK		0x10059
> +			MX6QDL_PAD_SD1_DAT0__SD1_DATA0		0x17059
> +			MX6QDL_PAD_SD1_DAT1__SD1_DATA1		0x17059
> +			MX6QDL_PAD_SD1_DAT2__SD1_DATA2		0x17059
> +			MX6QDL_PAD_SD1_DAT3__SD1_DATA3		0x17059
> +		>;
> +	};
> +
> +	pinctrl_usdhc1_gpio: usdhc1grpgpiogrp {
> +		fsl,pins = <
> +			MX6QDL_PAD_ENET_TX_EN__GPIO1_IO28	0x1b0b0
> +		>;
> +	};
> +
> +	pinctrl_usdhc2: usdhc2grp {
> +		fsl,pins = <
> +			MX6QDL_PAD_SD2_CMD__SD2_CMD		0x17059
> +			MX6QDL_PAD_SD2_CLK__SD2_CLK		0x10059
> +			MX6QDL_PAD_SD2_DAT0__SD2_DATA0		0x17059
> +			MX6QDL_PAD_SD2_DAT1__SD2_DATA1		0x17059
> +			MX6QDL_PAD_SD2_DAT2__SD2_DATA2		0x17059
> +			MX6QDL_PAD_SD2_DAT3__SD2_DATA3		0x17059
> +		>;
> +	};
> +
> +	pinctrl_usdhc2_gpio: usdhc2grpgpiogrp {
> +		fsl,pins = <
> +			MX6QDL_PAD_NANDF_D0__GPIO2_IO00		0x1b0b0
> +			MX6QDL_PAD_NANDF_D1__GPIO2_IO01		0x1b0b0
> +		>;
> +	};
> +
> +	pinctrl_usdhc3: usdhc3grp {
> +		fsl,pins = <
> +			MX6QDL_PAD_SD3_CMD__SD3_CMD		0x17059
> +			MX6QDL_PAD_SD3_CLK__SD3_CLK		0x10059
> +			MX6QDL_PAD_SD3_DAT0__SD3_DATA0		0x17059
> +			MX6QDL_PAD_SD3_DAT1__SD3_DATA1		0x17059
> +			MX6QDL_PAD_SD3_DAT2__SD3_DATA2		0x17059
> +			MX6QDL_PAD_SD3_DAT3__SD3_DATA3		0x17059
> +			MX6QDL_PAD_SD3_DAT4__SD3_DATA4		0x17059
> +			MX6QDL_PAD_SD3_DAT5__SD3_DATA5		0x17059
> +			MX6QDL_PAD_SD3_DAT6__SD3_DATA6		0x17059
> +			MX6QDL_PAD_SD3_DAT7__SD3_DATA7		0x17059
> +		>;
> +	};
> +
> +	pinctrl_wdog: wdoggrp {
> +		fsl,pins = <
> +			MX6QDL_PAD_GPIO_1__WDOG2_B		0x1b0b0
> +		>;
> +	};
> +
> +	pinctrl_gpio_leds: gpioledsgrp {
> +		fsl,pins = <
> +			MX6QDL_PAD_KEY_COL1__GPIO4_IO08 0x1b0b0
> +		>;
> +	};
> +};
> +
> +&uart4 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart4>;
> +	status = "okay";
> +};
> +
> +&usbh1 {
> +	vbus-supply = <&reg_usb_h1_vbus>;
> +	status = "okay";
> +};
> +
> +&usbotg {
> +	vbus-supply = <&reg_usb_otg_vbus>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_usbotg>;
> +	disable-over-current;
> +	status = "okay";
> +};
> +
> +&usdhc1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_usdhc1>, <&pinctrl_usdhc1_gpio>;
> +	bus-width = <4>;
> +	cd-gpios = <&gpio1 28 GPIO_ACTIVE_LOW>;
> +	status = "okay";
> +};
> +
> +&usdhc2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
> +	bus-width = <4>;
> +	cd-gpios = <&gpio2 0 GPIO_ACTIVE_LOW>;
> +	wp-gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
> +	status = "disabled";
> +};
> +
> +&usdhc3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_usdhc3>;
> +	bus-width = <8>;
> +	non-removable;
> +	no-1-8-v;
> +	status = "okay";
> +};
> +
> +&wdog1 {
> +	status = "disabled";
> +};
> +
> +&wdog2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_wdog>;
> +	fsl,ext-reset-output;
> +	status = "okay";
> +};
> -- 
> 1.9.1
>