Date:   Mon, 1 Jun 2020 12:49:39 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     stulluk@...il.com
Cc:     robh+dt@...nel.org, wens@...e.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH] arm: allwinner: a20: Add Drejo DS167 initial support

Hi,

Please make sure that all the proper recipients are in Cc. The
linux-arm-kernel ML especially is missing, get_maintainers will give you
the list.

Also, the prefix of your commit log is supposed to be

ARM: dts: sunxi: ...

On Sun, May 31, 2020 at 02:05:38PM +0300, stulluk@...il.com wrote:
> From: Sertac TULLUK <stulluk@...il.com>
> 
> Drejo DS167 is an Allwinner A20 based IoT device,
> which support
> - Allwinner A20 Cortex-A7
> - Mali-400MP2 GPU
> - AXP209 PMIC
> - 1GB DDR3 RAM
> - 8GB eMMC
> - 10/100M Ethernet
> - SATA
> - HDMI
> - 10.1inch and 7.0inch LVDS LCD and Touch screens
> - CSI: OV5640 sensor
> - USB OTG
> - 2x USB2.0
> - built-in KNX Transceiver
> - 3x Dry Contact Input
> - 3x Relay output
> - IR RX/TX
> - UART3
> - SPI1
> - RTC Battery
> - 8x GPIO
> - Analogue + Digital Microphone
> - PAM8620 speaker Amplifier
> - 12V DC power supply
> - 3.7V Battery Operable
> 
> Signed-off-by: Sertac TULLUK <stulluk@...il.com>
> ---
>  arch/arm/boot/dts/Makefile                    |   2 +
>  .../boot/dts/sun7i-a20-drejo-ds167-emmc.dts   |  69 +++++
>  arch/arm/boot/dts/sun7i-a20-drejo-ds167.dts   | 288 ++++++++++++++++++
>  3 files changed, 359 insertions(+)
>  create mode 100644 arch/arm/boot/dts/sun7i-a20-drejo-ds167-emmc.dts
>  create mode 100644 arch/arm/boot/dts/sun7i-a20-drejo-ds167.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 3823090d07e7..d81e685dee38 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1097,6 +1097,8 @@ dtb-$(CONFIG_MACH_SUN7I) += \
>  	sun7i-a20-bananapro.dtb \
>  	sun7i-a20-cubieboard2.dtb \
>  	sun7i-a20-cubietruck.dtb \
> +	sun7i-a20-drejo-ds167.dtb \
> +        sun7i-a20-drejo-ds167-emmc.dtb \

You indented with spaces here, instead of a tab.

>  	sun7i-a20-hummingbird.dtb \
>  	sun7i-a20-itead-ibox.dtb \
>  	sun7i-a20-i12-tvbox.dtb \
> diff --git a/arch/arm/boot/dts/sun7i-a20-drejo-ds167-emmc.dts b/arch/arm/boot/dts/sun7i-a20-drejo-ds167-emmc.dts
> new file mode 100644
> index 000000000000..b6147eb013b0
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun7i-a20-drejo-ds167-emmc.dts
> @@ -0,0 +1,69 @@
> +/*
> + * Copyright 2020 Sertac TULLUK
> + *
> + * Sertac TULLUK <stulluk@...il.com>
> + *
> + * This file is dual-licensed: you can use it either under the terms
> + * of the GPL or the X11 license, at your option. Note that this dual
> + * licensing only applies to this file, and not this project as a
> + * whole.
> + *
> + *  a) This file is free software; you can redistribute it and/or
> + *     modify it under the terms of the GNU General Public License as
> + *     published by the Free Software Foundation; either version 2 of the
> + *     License, or (at your option) any later version.
> + *
> + *     This file is distributed in the hope that it will be useful,
> + *     but WITHOUT ANY WARRANTY; without even the implied warranty of
> + *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + *     GNU General Public License for more details.
> + *
> + * Or, alternatively,
> + *
> + *  b) Permission is hereby granted, free of charge, to any person
> + *     obtaining a copy of this software and associated documentation
> + *     files (the "Software"), to deal in the Software without
> + *     restriction, including without limitation the rights to use,
> + *     copy, modify, merge, publish, distribute, sublicense, and/or
> + *     sell copies of the Software, and to permit persons to whom the
> + *     Software is furnished to do so, subject to the following
> + *     conditions:
> + *
> + *     The above copyright notice and this permission notice shall be
> + *     included in all copies or substantial portions of the Software.
> + *
> + *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> + *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
> + *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
> + *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
> + *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + *     OTHER DEALINGS IN THE SOFTWARE.
> + */

You should use an SPDX tag here

> +#include "sun7i-a20-drejo-ds167.dts"

Is there any reason not to have the emmc into the main DTS?

> +/ {
> +	model = "drejo DS167-eMMC";

Drejo should have an uppercase?

> +	compatible = "drejo,sun7i-a20-drejo-ds167-emmc", "allwinner,sun7i-a20";

This compatible should be documented.

Also, this can be something like drejo,ds167 (the vendor should be
documented too )

> +
> +	mmc2_pwrseq: pwrseq {
> +		compatible = "mmc-pwrseq-emmc";
> +		reset-gpios = <&pio 2 24 GPIO_ACTIVE_LOW>;
> +	};
> +};
> +
> +&mmc2 {
> +	vmmc-supply = <&reg_vcc3v3>;
> +	bus-width = <4>;
> +	non-removable;
> +	mmc-pwrseq = <&mmc2_pwrseq>;
> +	status = "okay";
> +
> +	emmc: emmc@0 {
> +		reg = <0>;
> +		compatible = "mmc-card";
> +		broken-hpi;
> +	};
> +};
> diff --git a/arch/arm/boot/dts/sun7i-a20-drejo-ds167.dts b/arch/arm/boot/dts/sun7i-a20-drejo-ds167.dts
> new file mode 100644
> index 000000000000..79db92f88251
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun7i-a20-drejo-ds167.dts
> @@ -0,0 +1,288 @@
> +/*
> + * Copyright 2020 Sertac TULLUK
> + *
> + * Sertac TULLUK <stulluk@...il.com>
> + *
> + * This file is dual-licensed: you can use it either under the terms
> + * of the GPL or the X11 license, at your option. Note that this dual
> + * licensing only applies to this file, and not this project as a
> + * whole.
> + *
> + *  a) This file is free software; you can redistribute it and/or
> + *     modify it under the terms of the GNU General Public License as
> + *     published by the Free Software Foundation; either version 2 of the
> + *     License, or (at your option) any later version.
> + *
> + *     This file is distributed in the hope that it will be useful,
> + *     but WITHOUT ANY WARRANTY; without even the implied warranty of
> + *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + *     GNU General Public License for more details.
> + *
> + * Or, alternatively,
> + *
> + *  b) Permission is hereby granted, free of charge, to any person
> + *     obtaining a copy of this software and associated documentation
> + *     files (the "Software"), to deal in the Software without
> + *     restriction, including without limitation the rights to use,
> + *     copy, modify, merge, publish, distribute, sublicense, and/or
> + *     sell copies of the Software, and to permit persons to whom the
> + *     Software is furnished to do so, subject to the following
> + *     conditions:
> + *
> + *     The above copyright notice and this permission notice shall be
> + *     included in all copies or substantial portions of the Software.
> + *
> + *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> + *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
> + *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
> + *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
> + *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + *     OTHER DEALINGS IN THE SOFTWARE.
> + */
> +
> +/dts-v1/;
> +#include "sun7i-a20.dtsi"
> +#include "sunxi-common-regulators.dtsi"
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/ {
> +	model = "drejo DS167";
> +	compatible = "drejo,sun7i-a20-drejo-ds167", "allwinner,sun7i-a20";
> +
> +	aliases {
> +		serial0 = &uart0;
> +		serial1 = &uart3;
> +
> +		spi0 = &spi1;
> +		spi1 = &spi2;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	hdmi-connector {
> +		compatible = "hdmi-connector";
> +		type = "a";
> +
> +		port {
> +			hdmi_con_in: endpoint {
> +				remote-endpoint = <&hdmi_out_con>;
> +			};
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&led_pins_ds167>;

You don't need a pinctrl node for the GPIOs

> +
> +		red {
> +			label = "ds167-status";

This isn't the proper red name, it should be something like
ds167:red:status

> +			gpios = <&pio 8 9 GPIO_ACTIVE_LOW>;  /* PI9 STATUS LED NEAR A20 SERTAC */
> +			default-state = "on";
> +		};
> +	};
> +};
> +
> +&ahci {
> +	target-supply = <&reg_ahci_5v>;
> +	status = "okay";
> +};
> +
> +&codec {
> +	status = "okay";
> +};
> +
> +&cpu0 {
> +	cpu-supply = <&reg_dcdc2>;
> +};
> +
> +&de {
> +	status = "okay";
> +};
> +
> +&ehci0 {
> +	status = "okay";
> +};
> +
> +&ehci1 {
> +	status = "okay";
> +};
> +
> +&gmac {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&gmac_mii_pins>, <&gmac_txerr>;
> +	phy-handle = <&phy1>;
> +	phy-mode = "mii";
> +	status = "okay";
> +};
> +
> +&hdmi {
> +	status = "okay";
> +};
> +
> +&hdmi_out {
> +	hdmi_out_con: endpoint {
> +		remote-endpoint = <&hdmi_con_in>;
> +	};
> +};
> +
> +&i2c0 {
> +	status = "okay";
> +
> +	axp209: pmic@34 {
> +		reg = <0x34>;
> +		interrupt-parent = <&nmi_intc>;
> +		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> +	};
> +};
> +
> +&i2c2 {
> +	status = "okay";
> +};
> +
> +&lradc {
> +	vref-supply = <&reg_vcc3v0>;
> +	status = "okay";
> +};
> +
> +&gmac_mdio {
> +	phy1: ethernet-phy@1 {
> +		reg = <1>;
> +	};
> +};
> +
> +&mmc0 {
> +	vmmc-supply = <&reg_vcc3v3>;
> +	bus-width = <4>;
> +	cd-gpios = <&pio 7 1 GPIO_ACTIVE_LOW>; /* PH1 */
> +	status = "okay";
> +};
> +
> +&ohci0 {
> +	status = "okay";
> +};
> +
> +&ohci1 {
> +	status = "okay";
> +};
> +
> +&otg_sram {
> +	status = "okay";
> +};
> +
> +&pio {
> +	gmac_txerr: gmac-txerr-pin {
> +		pins = "PA17";
> +		function = "gmac";
> +	};
> +
> +	led_pins_ds167: led-pins {  
> +		pins = "PI9";   /* Status led, on schematic, this is LED_EN */
> +		function = "gpio_out";
> +		drive-strength = <20>;
> +	};
> +};
> +
> +&pwm {
> +      pinctrl-names = "default";
> +      pinctrl-0 = <&pwm0_pin>, <&pwm1_pin>;
> +      status = "okay";
> +};
> +
> +#include "axp209.dtsi"
> +
> +&ac_power_supply {
> +	status = "okay";
> +};
> +
> +&battery_power_supply {
> +	status = "okay";
> +};
> +
> +&reg_dcdc2 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1000000>;
> +	regulator-max-microvolt = <1400000>;
> +	regulator-name = "vdd-cpu";
> +};
> +
> +&reg_dcdc3 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1000000>;
> +	regulator-max-microvolt = <1400000>;
> +	regulator-name = "vdd-int-dll";
> +};
> +
> +&reg_ldo2 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <3000000>;
> +	regulator-max-microvolt = <3000000>;
> +	regulator-name = "avcc";
> +};
> +
> +&reg_ahci_5v {
> +	status = "okay";
> +};
> +
> +&reg_usb0_vbus {
> +	status = "okay";
> +};
> +
> +&reg_usb1_vbus {
> +	status = "okay";
> +};
> +
> +&reg_usb2_vbus {
> +	status = "okay";
> +};
> +
> +&spi1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&spi1_pi_pins>,
> +		    <&spi1_cs0_pi_pin>;
> +	status = "okay";
> +};
> +
> +&spi2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&spi2_pc_pins>,
> +		    <&spi2_cs0_pc_pin>;
> +	status = "okay";
> +};
> +
> +&uart0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart0_pb_pins>;
> +	status = "okay";
> +};
> +
> +&uart3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart3_pg_pins>;
> +	status = "okay";
> +};
> +
> +&usb_otg {
> +	dr_mode = "otg";
> +	status = "okay";
> +};
> +
> +&usb_power_supply {
> +	status = "okay";
> +};
> +
> +&usbphy {
> +	usb0_id_det-gpios = <&pio 7 4 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PH4 */
> +	usb0_vbus_det-gpios = <&pio 7 5 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>; /* PH5 */
> +	usb0_vbus-supply = <&reg_usb0_vbus>;
> +	usb1_vbus-supply = <&reg_usb1_vbus>;
> +	usb2_vbus-supply = <&reg_usb2_vbus>;
> +	status = "okay";
> +};

Looks good otherwise, thanks!
Maxime

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