Date:   Fri, 22 Apr 2022 09:51:19 +0200
From:   Alexandre TORGUE <alexandre.torgue@...s.st.com>
To:     Oleksij Rempel <o.rempel@...gutronix.de>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>
CC:     <kernel@...gutronix.de>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 2/2] ARM: dts: stm32: add support for Protonic PRTT1x
 boards

Hi Oleksij,

On 4/22/22 09:10, Oleksij Rempel wrote:
> This boards are based on STM32MP151AAD3 and use 10BaseT1L for communication.
> 
> - PRTT1C - 10BaseT1L switch
> - PRTT1S - 10BaseT1L CO2 sensor board
> - PRTT1A - 10BaseT1L multi functional controller
>

Thanks for adding new STM32 boards. Some remarks below.

> Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
> ---
>   arch/arm/boot/dts/Makefile                |   4 +
>   arch/arm/boot/dts/stm32mp151a-prtt1a.dts  |  52 ++++
>   arch/arm/boot/dts/stm32mp151a-prtt1c.dts  | 321 ++++++++++++++++++++++
>   arch/arm/boot/dts/stm32mp151a-prtt1l.dtsi | 213 ++++++++++++++
>   arch/arm/boot/dts/stm32mp151a-prtt1s.dts  |  63 +++++
>   5 files changed, 653 insertions(+)
>   create mode 100644 arch/arm/boot/dts/stm32mp151a-prtt1a.dts
>   create mode 100644 arch/arm/boot/dts/stm32mp151a-prtt1c.dts
>   create mode 100644 arch/arm/boot/dts/stm32mp151a-prtt1l.dtsi
>   create mode 100644 arch/arm/boot/dts/stm32mp151a-prtt1s.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 7c16f8a2b738..ec5b2307e85a 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1156,6 +1156,9 @@ dtb-$(CONFIG_ARCH_STM32) += \
>   	stm32h743i-disco.dtb \
>   	stm32h750i-art-pi.dtb \
>   	stm32mp135f-dk.dtb \
> +	stm32mp151a-prtt1a.dtb \
> +	stm32mp151a-prtt1c.dtb \
> +	stm32mp151a-prtt1s.dtb \
>   	stm32mp153c-dhcom-drc02.dtb \
>   	stm32mp157a-avenger96.dtb \
>   	stm32mp157a-dhcor-avenger96.dtb \
> @@ -1175,6 +1178,7 @@ dtb-$(CONFIG_ARCH_STM32) += \
>   	stm32mp157c-ev1.dtb \
>   	stm32mp157c-lxa-mc1.dtb \
>   	stm32mp157c-odyssey.dtb
> +

extra line

>   dtb-$(CONFIG_MACH_SUN4I) += \
>   	sun4i-a10-a1000.dtb \
>   	sun4i-a10-ba10-tvbox.dtb \
> diff --git a/arch/arm/boot/dts/stm32mp151a-prtt1a.dts b/arch/arm/boot/dts/stm32mp151a-prtt1a.dts
> new file mode 100644
> index 000000000000..75874eafde11
> --- /dev/null
> +++ b/arch/arm/boot/dts/stm32mp151a-prtt1a.dts
> @@ -0,0 +1,52 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
> +/*
> + * Copyright (C) Protonic Holland
> + * Author: David Jander <david@...tonic.nl>
> + */
> +/dts-v1/;
> +
> +#include "stm32mp151a-prtt1l.dtsi"
> +
> +/ {
> +	model = "Protonic PRTT1A";
> +	compatible = "prt,prtt1a", "st,stm32mp151";
> +};
> +
> +&ethernet0 {
> +	phy-handle = <&phy0>;
> +};
> +
> +&mdio0 {
> +	/* TI DP83TD510E */
> +	phy0: ethernet-phy@0 {
> +		compatible = "ethernet-phy-id2000.0181";
> +		reg = <0>;
> +		interrupts-extended = <&gpioa 4 IRQ_TYPE_LEVEL_LOW>;
> +		reset-gpios = <&gpioa 3 GPIO_ACTIVE_LOW>;
> +		reset-assert-us = <10>;
> +		reset-deassert-us = <35>;
> +	};
> +};
> +
> +&pwm5_pins_a {
> +	pins {
> +		pinmux = <STM32_PINMUX('A', 0, AF2)>; /* TIM5_CH1 */
> +	};
> +};
> +
> +&pwm5_sleep_pins_a {
> +	pins {
> +		pinmux = <STM32_PINMUX('A', 0, ANALOG)>; /* TIM5_CH1 */
> +	};
> +};
> +
> +&timers5 {
> +	status = "okay";
> +
> +	pwm {
> +		pinctrl-0 = <&pwm5_pins_a>;
> +		pinctrl-1 = <&pwm5_sleep_pins_a>;
> +		pinctrl-names = "default", "sleep";
> +		status = "okay";
> +	};
> +};
> diff --git a/arch/arm/boot/dts/stm32mp151a-prtt1c.dts b/arch/arm/boot/dts/stm32mp151a-prtt1c.dts
> new file mode 100644
> index 000000000000..18b7e05088b5
> --- /dev/null
> +++ b/arch/arm/boot/dts/stm32mp151a-prtt1c.dts
> @@ -0,0 +1,321 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
> +/*
> + * Copyright (C) Protonic Holland
> + * Author: David Jander <david@...tonic.nl>
> + */
> +/dts-v1/;
> +
> +#include "stm32mp151a-prtt1l.dtsi"
> +
> +/ {
> +	model = "Protonic PRTT1C";
> +	compatible = "prt,prtt1c", "st,stm32mp151";
> +
> +	clock_ksz9031: clock-ksz9031 {
> +		compatible = "fixed-clock";
> +		#clock-cells = <0>;
> +		clock-frequency = <25000000>;
> +	};
> +
> +	clock_sja1105: clock-sja1105 {
> +		compatible = "fixed-clock";
> +		#clock-cells = <0>;
> +		clock-frequency = <25000000>;
> +	};
> +
> +	mdio0: mdio {
> +		compatible = "virtual,mdio-gpio";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		gpios = <&gpioc 1 GPIO_ACTIVE_HIGH
> +			 &gpioa 2 GPIO_ACTIVE_HIGH>;
> +
> +	};
> +
> +	wifi_pwrseq: wifi-pwrseq {
> +		compatible = "mmc-pwrseq-simple";
> +		reset-gpios = <&gpiod 8 GPIO_ACTIVE_LOW>;
> +	};
> +};
> +
> +&ethernet0 {
> +	fixed-link {
> +		speed = <100>;
> +		full-duplex;
> +	};
> +};
> +
> +&gpioa {
> +	gpio-line-names =
> +		"", "", "", "PHY0_nRESET", "PHY0_nINT", "", "", "",
> +		"", "", "", "", "", "", "", "SPI1_nSS";
> +};
> +
> +&gpiod {
> +	gpio-line-names =
> +		"", "", "", "", "", "", "", "",
> +		"WFM_RESET", "", "", "", "", "", "", "";
> +};
> +
> +&gpioe {
> +	gpio-line-names =
> +		"SDMMC2_nRESET", "", "", "", "", "", "SPI1_nRESET", "",
> +		"", "", "", "", "WFM_nIRQ", "", "", "";
> +};
> +
> +&gpiog {
> +	gpio-line-names =
> +		"", "", "", "", "", "", "", "PHY3_nINT",
> +		"PHY1_nINT", "PHY3_nRESET", "PHY2_nINT", "PHY2_nRESET",
> +		"PHY1_nRESET", "SPE1_PWR", "SPE0_PWR", "";
> +};
> +
> +&mdio0 {
> +	/* All this DP83TD510E PHYs can't be probed before switch@0 is
> +	 * probed so we need to use compatible with PHYid
> +	 */
> +	/* TI DP83TD510E */
> +	t1l0_phy: ethernet-phy@6 {
> +		compatible = "ethernet-phy-id2000.0181";
> +		reg = <6>;
> +		interrupts-extended = <&gpioa 4 IRQ_TYPE_LEVEL_LOW>;
> +		reset-gpios = <&gpioa 3 GPIO_ACTIVE_LOW>;
> +		reset-assert-us = <10>;
> +		reset-deassert-us = <35>;
> +	};
> +
> +	/* TI DP83TD510E */
> +	t1l1_phy: ethernet-phy@7 {
> +		compatible = "ethernet-phy-id2000.0181";
> +		reg = <7>;
> +		interrupts-extended = <&gpiog 8 IRQ_TYPE_LEVEL_LOW>;
> +		reset-gpios = <&gpiog 12 GPIO_ACTIVE_LOW>;
> +		reset-assert-us = <10>;
> +		reset-deassert-us = <35>;
> +	};
> +
> +	/* TI DP83TD510E */
> +	t1l2_phy: ethernet-phy@10 {
> +		compatible = "ethernet-phy-id2000.0181";
> +		reg = <10>;
> +		interrupts-extended = <&gpiog 10 IRQ_TYPE_LEVEL_LOW>;
> +		reset-gpios = <&gpiog 11 GPIO_ACTIVE_LOW>;
> +		reset-assert-us = <10>;
> +		reset-deassert-us = <35>;
> +	};
> +
> +	/* Micrel KSZ9031 */
> +	rj45_phy: ethernet-phy@2 {
> +		reg = <2>;
> +		interrupts-extended = <&gpiog 7 IRQ_TYPE_LEVEL_LOW>;
> +		reset-gpios = <&gpiog 9 GPIO_ACTIVE_LOW>;
> +		reset-assert-us = <10000>;
> +		reset-deassert-us = <1000>;
> +
> +		clocks = <&clock_ksz9031>;
> +	};
> +};
> +
> +&qspi {
> +	status = "disabled";
> +};
> +
> +&sdmmc2 {
> +	pinctrl-names = "default", "opendrain", "sleep";
> +	pinctrl-0 = <&sdmmc2_b4_pins_a &sdmmc2_d47_pins_a>;
> +	pinctrl-1 = <&sdmmc2_b4_od_pins_a &sdmmc2_d47_pins_a>;
> +	pinctrl-2 = <&sdmmc2_b4_sleep_pins_a &sdmmc2_d47_sleep_pins_a>;
> +	non-removable;
> +	no-sd;
> +	no-sdio;
> +	no-1-8-v;
> +	st,neg-edge;
> +	bus-width = <8>;
> +	vmmc-supply = <&reg_3v3>;
> +	vqmmc-supply = <&reg_3v3>;
> +	status = "okay";
> +};
> +
> +&sdmmc2_b4_od_pins_a {
> +	pins1 {
> +		pinmux = <STM32_PINMUX('B', 14, AF9)>, /* SDMMC2_D0 */
> +			 <STM32_PINMUX('B', 7, AF10)>, /* SDMMC2_D1 */
> +			 <STM32_PINMUX('B', 3, AF9)>, /* SDMMC2_D2 */
> +			 <STM32_PINMUX('B', 4, AF9)>; /* SDMMC2_D3 */
> +	};
> +};
> +
> +&sdmmc2_b4_pins_a {
> +	pins1 {
> +		pinmux = <STM32_PINMUX('B', 14, AF9)>, /* SDMMC2_D0 */
> +			 <STM32_PINMUX('B', 7, AF10)>, /* SDMMC2_D1 */
> +			 <STM32_PINMUX('B', 3, AF9)>, /* SDMMC2_D2 */
> +			 <STM32_PINMUX('B', 4, AF9)>, /* SDMMC2_D3 */
> +			 <STM32_PINMUX('G', 6, AF10)>; /* SDMMC2_CMD */
> +	};
> +};
> +
> +&sdmmc2_b4_sleep_pins_a {
> +	pins {
> +		pinmux = <STM32_PINMUX('B', 14, ANALOG)>, /* SDMMC2_D0 */
> +			 <STM32_PINMUX('B', 7, ANALOG)>, /* SDMMC2_D1 */
> +			 <STM32_PINMUX('B', 3, ANALOG)>, /* SDMMC2_D2 */
> +			 <STM32_PINMUX('B', 4, ANALOG)>, /* SDMMC2_D3 */
> +			 <STM32_PINMUX('E', 3, ANALOG)>, /* SDMMC2_CK */
> +			 <STM32_PINMUX('G', 6, ANALOG)>; /* SDMMC2_CMD */
> +	};
> +};
> +
> +&sdmmc2_d47_pins_a {
> +	pins {
> +		pinmux = <STM32_PINMUX('A', 8, AF9)>, /* SDMMC2_D4 */
> +			 <STM32_PINMUX('A', 9, AF10)>, /* SDMMC2_D5 */
> +			 <STM32_PINMUX('C', 6, AF10)>, /* SDMMC2_D6 */
> +			 <STM32_PINMUX('C', 7, AF10)>; /* SDMMC2_D7 */
> +	};
> +};
> +
> +&sdmmc2_d47_sleep_pins_a {
> +	pins {
> +		pinmux = <STM32_PINMUX('A', 8, ANALOG)>, /* SDMMC2_D4 */
> +			 <STM32_PINMUX('A', 9, ANALOG)>, /* SDMMC2_D5 */
> +			 <STM32_PINMUX('C', 6, ANALOG)>, /* SDMMC2_D6 */
> +			 <STM32_PINMUX('D', 3, ANALOG)>; /* SDMMC2_D7 */
> +	};
> +};
> +
> +&sdmmc3 {
> +	pinctrl-names = "default", "opendrain", "sleep";
> +	pinctrl-0 = <&sdmmc3_b4_pins_b>;
> +	pinctrl-1 = <&sdmmc3_b4_od_pins_b>;
> +	pinctrl-2 = <&sdmmc3_b4_sleep_pins_b>;
> +	non-removable;
> +	no-1-8-v;
> +	st,neg-edge;
> +	bus-width = <4>;
> +	vmmc-supply = <&reg_3v3>;
> +	vqmmc-supply = <&reg_3v3>;
> +        mmc-pwrseq = <&wifi_pwrseq>;
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	status = "okay";
> +
> +	mmc@1 {
> +		compatible = "silabs,wf200";

this compatible doesn't match with an existing yaml. Can you please add 
it maybe in 
/Documentation/devicetree/bindings/staging/net/wireless/silabs,wfx.yaml

> +		reg = <1>;
> +	};
> +};
> +
> +&sdmmc3_b4_od_pins_b {
> +	pins1 {
> +		pinmux = <STM32_PINMUX('D', 1, AF10)>, /* SDMMC3_D0 */
> +			 <STM32_PINMUX('D', 4, AF10)>, /* SDMMC3_D1 */
> +			 <STM32_PINMUX('D', 5, AF10)>, /* SDMMC3_D2 */
> +			 <STM32_PINMUX('D', 7, AF10)>; /* SDMMC3_D3 */
> +	};
> +};
> +
> +&sdmmc3_b4_pins_b {
> +	pins1 {
> +		pinmux = <STM32_PINMUX('D', 1, AF10)>, /* SDMMC3_D0 */
> +			 <STM32_PINMUX('D', 4, AF10)>, /* SDMMC3_D1 */
> +			 <STM32_PINMUX('D', 5, AF10)>, /* SDMMC3_D2 */
> +			 <STM32_PINMUX('D', 7, AF10)>, /* SDMMC3_D3 */
> +			 <STM32_PINMUX('D', 0, AF10)>; /* SDMMC3_CMD */
> +	};
> +};
> +
> +&sdmmc3_b4_sleep_pins_b {
> +	pins {
> +		pinmux = <STM32_PINMUX('D', 1, ANALOG)>, /* SDMMC3_D0 */
> +			 <STM32_PINMUX('D', 4, ANALOG)>, /* SDMMC3_D1 */
> +			 <STM32_PINMUX('D', 5, ANALOG)>, /* SDMMC3_D2 */
> +			 <STM32_PINMUX('D', 7, ANALOG)>, /* SDMMC3_D3 */
> +			 <STM32_PINMUX('G', 15, ANALOG)>, /* SDMMC3_CK */
> +			 <STM32_PINMUX('D', 0, ANALOG)>; /* SDMMC3_CMD */
> +	};
> +};
> +
> +&spi1 {
> +	pinctrl-0 = <&spi1_pins_a1>;
> +	pinctrl-names = "default";
> +	cs-gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
> +	/delete-property/dmas;
> +	/delete-property/dma-names;
> +	status = "okay";
> +
> +	switch@0 {
> +		compatible = "nxp,sja1105q";
> +		reg = <0>;
> +		spi-max-frequency = <4000000>;
> +		spi-rx-delay-us = <1>;
> +		spi-tx-delay-us = <1>;
> +		spi-cpha;
> +
> +		reset-gpios = <&gpioe 6 GPIO_ACTIVE_LOW>;
> +
> +		clocks = <&clock_sja1105>;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +				label = "t1l0";
> +				phy-mode = "rmii";
> +				phy-handle = <&t1l0_phy>;
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +				label = "t1l1";
> +				phy-mode = "rmii";
> +				phy-handle = <&t1l1_phy>;
> +			};
> +
> +			port@2 {
> +				reg = <2>;
> +				label = "t1l2";
> +				phy-mode = "rmii";
> +				phy-handle = <&t1l2_phy>;
> +			};
> +
> +			port@3 {
> +				reg = <3>;
> +				label = "rj45";
> +				phy-handle = <&rj45_phy>;
> +				phy-mode = "rgmii-id";
> +			};
> +
> +			port@4 {
> +				reg = <4>;
> +				label = "cpu";
> +				ethernet = <&ethernet0>;
> +				phy-mode = "rmii";
> +
> +				fixed-link {
> +					speed = <100>;
> +					full-duplex;
> +				};
> +			};
> +		};
> +	};
> +};
> +
> +&pinctrl {
> +	spi1_pins_a1: spi1-0 {
> +		pins1 {
> +			pinmux = <STM32_PINMUX('A', 5, AF5)>, /* SPI1_SCK */
> +				 <STM32_PINMUX('B', 5, AF5)>; /* SPI1_MOSI */
> +			bias-disable;
> +			drive-push-pull;
> +			slew-rate = <1>;
> +		};
> +
> +		pins2 {
> +			pinmux = <STM32_PINMUX('A', 6, AF5)>; /* SPI1_MISO */
> +			bias-disable;
> +		};
> +	};

Can you please move this spi pins group definition in 
stm32mp15-pinctrl.dtsi. I see no issue to update existing pin group 
nodes in your board file as you do (even if the past I was not in favor 
of it but I'm changing :)) but I think that all pins node have to be 
defined at the same place to have something consistent about node names: 
spi1-0, spi1-1 ...


> +};
> diff --git a/arch/arm/boot/dts/stm32mp151a-prtt1l.dtsi b/arch/arm/boot/dts/stm32mp151a-prtt1l.dtsi
> new file mode 100644
> index 000000000000..a942a34cad5c
> --- /dev/null
> +++ b/arch/arm/boot/dts/stm32mp151a-prtt1l.dtsi
> @@ -0,0 +1,213 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
> +/*
> + * Copyright (C) Protonic Holland
> + * Author: David Jander <david@...tonic.nl>
> + */
> +/dts-v1/;
> +
> +#include "stm32mp151.dtsi"
> +#include "stm32mp15-pinctrl.dtsi"
> +#include "stm32mp15xxad-pinctrl.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/leds/common.h>
> +
> +/ {
> +	aliases {
> +		ethernet0 = &ethernet0;
> +		mdio-gpio0 = &mdio0;
> +		serial0 = &uart4;
> +	};
> +
> +	led-controller-0 {
> +		compatible = "gpio-leds";
> +
> +		led-0 {
> +			color = <LED_COLOR_ID_RED>;
> +			function = LED_FUNCTION_INDICATOR;
> +			gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
> +		};
> +
> +		led-1 {
> +			color = <LED_COLOR_ID_GREEN>;
> +			function = LED_FUNCTION_INDICATOR;
> +			gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;
> +			linux,default-trigger = "heartbeat";
> +		};
> +	};
> +
> +
> +	/* DP83TD510E PHYs have max MDC rate of 1.75MHz. Since we can't reduce
> +	 * stmmac MDC clock without reducing system bus rate, we need to use
> +	 * gpio based MDIO bus.
> +	 */
> +	mdio0: mdio {
> +		compatible = "virtual,mdio-gpio";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		gpios = <&gpioc 1 GPIO_ACTIVE_HIGH
> +			 &gpioa 2 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	reg_3v3: regulator-3v3 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "3v3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +};
> +
> +&ethernet0 {
> +	pinctrl-0 = <&ethernet0_rmii_pins_a>;
> +	pinctrl-1 = <&ethernet0_rmii_sleep_pins_a>;
> +	pinctrl-names = "default", "sleep";
> +	phy-mode = "rmii";
> +	status = "okay";
> +};
> +
> +&ethernet0_rmii_pins_a {
> +	pins1 {
> +		pinmux = <STM32_PINMUX('B', 12, AF11)>, /* ETH1_RMII_TXD0 */
> +			 <STM32_PINMUX('B', 13, AF11)>, /* ETH1_RMII_TXD1 */
> +			 <STM32_PINMUX('B', 11, AF11)>; /* ETH1_RMII_TX_EN */
> +	};
> +	pins2 {
> +		pinmux = <STM32_PINMUX('C', 4, AF11)>,  /* ETH1_RMII_RXD0 */
> +			 <STM32_PINMUX('C', 5, AF11)>,  /* ETH1_RMII_RXD1 */
> +			 <STM32_PINMUX('A', 1, AF11)>,  /* ETH1_RMII_REF_CLK input */
> +			 <STM32_PINMUX('A', 7, AF11)>;  /* ETH1_RMII_CRS_DV */
> +	};
> +};
> +
> +&ethernet0_rmii_sleep_pins_a {
> +	pins1 {
> +		pinmux = <STM32_PINMUX('B', 12, ANALOG)>, /* ETH1_RMII_TXD0 */
> +			 <STM32_PINMUX('B', 13, ANALOG)>, /* ETH1_RMII_TXD1 */
> +			 <STM32_PINMUX('B', 11, ANALOG)>, /* ETH1_RMII_TX_EN */
> +			 <STM32_PINMUX('C', 4, ANALOG)>,  /* ETH1_RMII_RXD0 */
> +			 <STM32_PINMUX('C', 5, ANALOG)>,  /* ETH1_RMII_RXD1 */
> +			 <STM32_PINMUX('A', 1, ANALOG)>,  /* ETH1_RMII_REF_CLK */
> +			 <STM32_PINMUX('A', 7, ANALOG)>;  /* ETH1_RMII_CRS_DV */
> +	};
> +};
> +
> +&qspi {
> +	pinctrl-names = "default", "sleep";
> +	pinctrl-0 = <&qspi_clk_pins_a &qspi_bk1_pins_a>;
> +	pinctrl-1 = <&qspi_clk_sleep_pins_a &qspi_bk1_sleep_pins_a>;
> +	reg = <0x58003000 0x1000>, <0x70000000 0x4000000>;
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	status = "okay";
> +
> +	flash@0 {
> +		compatible = "spi-nand";
> +		reg = <0>;
> +		spi-rx-bus-width = <4>;
> +		spi-max-frequency = <104000000>;
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +	};
> +};
> +
> +&qspi_bk1_pins_a {
> +	pins1 {
> +		bias-pull-up;
> +		drive-push-pull;
> +		slew-rate = <1>;
> +	};
> +};
> +
> +&sdmmc1 {
> +	pinctrl-names = "default", "opendrain", "sleep";
> +	pinctrl-0 = <&sdmmc1_b4_pins_a>;
> +	pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
> +	pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
> +	broken-cd;
> +	st,neg-edge;
> +	bus-width = <4>;
> +	vmmc-supply = <&reg_3v3>;
> +	vqmmc-supply = <&reg_3v3>;
> +	status = "okay";
> +};
> +
> +&sdmmc1_b4_od_pins_a {
> +	pins1 {
> +		bias-pull-up;
> +	};
> +	pins2 {
> +		bias-pull-up;
> +	};
> +};
> +
> +&sdmmc1_b4_pins_a {
> +	pins1 {
> +		bias-pull-up;
> +	};
> +	pins2 {
> +		bias-pull-up;
> +	};
> +};
> +
> +&uart4 {
> +	pinctrl-names = "default", "sleep", "idle";
> +	pinctrl-0 = <&uart4_pins_a>;
> +	pinctrl-1 = <&uart4_sleep_pins_a>;
> +	pinctrl-2 = <&uart4_idle_pins_a>;
> +	/delete-property/dmas;
> +	/delete-property/dma-names;
> +	status = "okay";
> +};
> +
> +&uart4_idle_pins_a {
> +	pins1 {
> +		pinmux = <STM32_PINMUX('B', 9, ANALOG)>; /* UART4_TX */
> +	};
> +	pins2 {
> +		pinmux = <STM32_PINMUX('B', 2, AF8)>; /* UART4_RX */
> +		bias-pull-up;
> +	};
> +};
> +
> +&uart4_pins_a {
> +	pins1 {
> +		pinmux = <STM32_PINMUX('B', 9, AF8)>; /* UART4_TX */
> +		bias-disable;
> +		drive-push-pull;
> +		slew-rate = <0>;
> +	};
> +	pins2 {
> +		pinmux = <STM32_PINMUX('B', 2, AF8)>; /* UART4_RX */
> +		bias-pull-up;
> +	};
> +};
> +
> +&uart4_sleep_pins_a {
> +	pins {
> +		pinmux = <STM32_PINMUX('B', 9, ANALOG)>, /* UART4_TX */
> +			<STM32_PINMUX('B', 2, ANALOG)>; /* UART4_RX */
> +	};
> +};
> +
> +&usbh_ehci {
> +	phys = <&usbphyc_port0>;
> +	phy-names = "usb";
> +	status = "okay";
> +};
> +
> +&usbotg_hs {
> +	dr_mode = "host";
> +	pinctrl-0 = <&usbotg_hs_pins_a>;
> +	pinctrl-names = "default";
> +	phys = <&usbphyc_port1 0>;
> +	phy-names = "usb2-phy";
> +	status = "okay";
> +};
> +
> +&usbphyc {
> +	status = "okay";
> +};
> +
> +&usbphyc_port1 {
> +	phy-supply = <&reg_3v3>;

I got yaml issue about phy-supply but I don't understand yet why

thanks
Alex

> +};
> diff --git a/arch/arm/boot/dts/stm32mp151a-prtt1s.dts b/arch/arm/boot/dts/stm32mp151a-prtt1s.dts
> new file mode 100644
> index 000000000000..ad25929e64e6
> --- /dev/null
> +++ b/arch/arm/boot/dts/stm32mp151a-prtt1s.dts
> @@ -0,0 +1,63 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
> +/*
> + * Copyright (C) Protonic Holland
> + * Author: David Jander <david@...tonic.nl>
> + */
> +/dts-v1/;
> +
> +#include "stm32mp151a-prtt1l.dtsi"
> +
> +/ {
> +	model = "Protonic PRTT1S";
> +	compatible = "prt,prtt1s", "st,stm32mp151";
> +};
> +
> +&ethernet0 {
> +	phy-handle = <&phy0>;
> +};
> +
> +&i2c1 {
> +	pinctrl-names = "default", "sleep";
> +	pinctrl-0 = <&i2c1_pins_a>;
> +	pinctrl-1 = <&i2c1_sleep_pins_a>;
> +	clock-frequency = <100000>;
> +	/delete-property/dmas;
> +	/delete-property/dma-names;
> +	status = "okay";
> +
> +	humidity-sensor@40 {
> +		compatible = "ti,hdc1080";
> +		reg = <0x40>;
> +	};
> +
> +	co2-sensor@62 {
> +		compatible = "sensirion,scd41";
> +		reg = <0x62>;
> +	};
> +};
> +
> +&i2c1_pins_a {
> +	pins {
> +		pinmux = <STM32_PINMUX('D', 12, AF5)>, /* I2C1_SCL */
> +			 <STM32_PINMUX('D', 13, AF5)>; /* I2C1_SDA */
> +	};
> +};
> +
> +&i2c1_sleep_pins_a {
> +	pins {
> +		pinmux = <STM32_PINMUX('D', 12, ANALOG)>, /* I2C1_SCL */
> +			 <STM32_PINMUX('D', 13, ANALOG)>; /* I2C1_SDA */
> +	};
> +};
> +
> +&mdio0 {
> +	/* TI DP83TD510E */
> +	phy0: ethernet-phy@0 {
> +		compatible = "ethernet-phy-id2000.0181";
> +		reg = <0>;
> +		interrupts-extended = <&gpioa 4 IRQ_TYPE_LEVEL_LOW>;
> +		reset-gpios = <&gpioa 3 GPIO_ACTIVE_LOW>;
> +		reset-assert-us = <10>;
> +		reset-deassert-us = <35>;
> +	};
> +};

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