[PATCH 0/8] Support STM32h747i-disco board

[PATCH 0/8] Support STM32h747i-disco board

[Dario Binacchi]

The series adds support for STM32h747i-disco board

The board includes an STM32H747XI SoC with the following resources:
 - 2 Mbytes Flash
 - 1 Mbyte SRAM
 - LCD-TFT controller
 - MIPI-DSI interface
 - FD-CAN
 - USB 2.0 high-speed/full-speed
 - Ethernet MAC
 - camera interface

Detailed information can be found at:
https://www.st.com/en/evaluation-tools/stm32h747i-disco.html


Dario Binacchi (8):
  ARM: dts: stm32h7-pinctrl: add _a suffix to u[s]art_pins phandles
  dt-bindings: arm: stm32: add compatible for stm32h747i-disco board
  ARM: stm32: add a new SoC - STM32H747
  clk: stm32h7: rename USART{7,8}_CK to UART{7,8}_CK
  ARM: dts: stm32: add uart8 node for stm32h743 MCU
  ARM: dts: stm32: add pin map for UART8 controller on stm32h743
  ARM: dts: stm32: add an extra pin map for USART1 on stm32h743
  ARM: dts: stm32: support STM32h747i-disco board

 .../devicetree/bindings/arm/stm32/stm32.yaml  |   4 +
 arch/arm/boot/dts/st/Makefile                 |   1 +
 arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi     |  34 ++++-
 arch/arm/boot/dts/st/stm32h743.dtsi           |   8 ++
 arch/arm/boot/dts/st/stm32h743i-disco.dts     |   2 +-
 arch/arm/boot/dts/st/stm32h743i-eval.dts      |   2 +-
 arch/arm/boot/dts/st/stm32h747i-disco.dts     | 136 ++++++++++++++++++
 arch/arm/boot/dts/st/stm32h750i-art-pi.dts    |   6 +-
 arch/arm/mach-stm32/board-dt.c                |   1 +
 include/dt-bindings/clock/stm32h7-clks.h      |   4 +-
 10 files changed, 187 insertions(+), 11 deletions(-)
 create mode 100644 arch/arm/boot/dts/st/stm32h747i-disco.dts

-- 
2.43.0

[PATCH 1/8] ARM: dts: stm32h7-pinctrl: add _a suffix to u[s]art_pins phandles

[Dario Binacchi]

Allow expanding possible configurations for the same peripheral,
consistent with the scheme adopted in Linux.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

 arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi  | 8 ++++----
 arch/arm/boot/dts/st/stm32h743i-disco.dts  | 2 +-
 arch/arm/boot/dts/st/stm32h743i-eval.dts   | 2 +-
 arch/arm/boot/dts/st/stm32h750i-art-pi.dts | 6 +++---
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi b/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
index 7f1d234e1024..ad00c1080a96 100644
--- a/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
+++ b/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
@@ -198,7 +198,7 @@ pins2 {
 		};
 	};
 
-	uart4_pins: uart4-0 {
+	uart4_pins_a: uart4-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('A', 0, AF8)>; /* UART4_TX */
 			bias-disable;
@@ -211,7 +211,7 @@ pins2 {
 		};
 	};
 
-	usart1_pins: usart1-0 {
+	usart1_pins_a: usart1-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('B', 14, AF4)>; /* USART1_TX */
 			bias-disable;
@@ -224,7 +224,7 @@ pins2 {
 		};
 	};
 
-	usart2_pins: usart2-0 {
+	usart2_pins_a: usart2-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('D', 5, AF7)>; /* USART2_TX */
 			bias-disable;
@@ -237,7 +237,7 @@ pins2 {
 		};
 	};
 
-	usart3_pins: usart3-0 {
+	usart3_pins_a: usart3-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('B', 10, AF7)>, /* USART3_TX */
 				 <STM32_PINMUX('D', 12, AF7)>; /* USART3_RTS_DE */
diff --git a/arch/arm/boot/dts/st/stm32h743i-disco.dts b/arch/arm/boot/dts/st/stm32h743i-disco.dts
index 2b452883a708..8451a54a9a08 100644
--- a/arch/arm/boot/dts/st/stm32h743i-disco.dts
+++ b/arch/arm/boot/dts/st/stm32h743i-disco.dts
@@ -105,7 +105,7 @@ &sdmmc1 {
 };
 
 &usart2 {
-	pinctrl-0 = <&usart2_pins>;
+	pinctrl-0 = <&usart2_pins_a>;
 	pinctrl-names = "default";
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/st/stm32h743i-eval.dts b/arch/arm/boot/dts/st/stm32h743i-eval.dts
index 5c5d8059bdc7..4b0ced27b80e 100644
--- a/arch/arm/boot/dts/st/stm32h743i-eval.dts
+++ b/arch/arm/boot/dts/st/stm32h743i-eval.dts
@@ -145,7 +145,7 @@ &sdmmc1 {
 };
 
 &usart1 {
-	pinctrl-0 = <&usart1_pins>;
+	pinctrl-0 = <&usart1_pins_a>;
 	pinctrl-names = "default";
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/st/stm32h750i-art-pi.dts b/arch/arm/boot/dts/st/stm32h750i-art-pi.dts
index 44c307f8b09c..00d195d52a45 100644
--- a/arch/arm/boot/dts/st/stm32h750i-art-pi.dts
+++ b/arch/arm/boot/dts/st/stm32h750i-art-pi.dts
@@ -197,14 +197,14 @@ partition@0 {
 };
 
 &usart2 {
-	pinctrl-0 = <&usart2_pins>;
+	pinctrl-0 = <&usart2_pins_a>;
 	pinctrl-names = "default";
 	status = "disabled";
 };
 
 &usart3 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&usart3_pins>;
+	pinctrl-0 = <&usart3_pins_a>;
 	dmas = <&dmamux1 45 0x400 0x05>,
 	       <&dmamux1 46 0x400 0x05>;
 	dma-names = "rx", "tx";
@@ -221,7 +221,7 @@ bluetooth {
 };
 
 &uart4 {
-	pinctrl-0 = <&uart4_pins>;
+	pinctrl-0 = <&uart4_pins_a>;
 	pinctrl-names = "default";
 	status = "okay";
 };
-- 
2.43.0

[PATCH 2/8] dt-bindings: arm: stm32: add compatible for stm32h747i-disco board

[Dario Binacchi]

The board includes an STM32H747XI SoC with the following resources:
 - 2 Mbytes Flash
 - 1 MByte SRAM
 - LCD-TFT controller
 - MIPI-DSI interface
 - FD-CAN
 - USB 2.0 high-speed/full-speed
 - Ethernet MAC
 - camera interface

Detailed information can be found at:
https://www.st.com/en/evaluation-tools/stm32h747i-disco.html

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

 Documentation/devicetree/bindings/arm/stm32/stm32.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
index 5fee2f38ff25..75ef877530f9 100644
--- a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
@@ -42,6 +42,10 @@ properties:
               - st,stm32h743i-disco
               - st,stm32h743i-eval
           - const: st,stm32h743
+      - items:
+          - enum:
+              - st,stm32h747i-disco
+          - const: st,stm32h747
       - items:
           - enum:
               - st,stm32h750i-art-pi
-- 
2.43.0

[PATCH 4/8] clk: stm32h7: rename USART{7,8}_CK to UART{7,8}_CK

[Dario Binacchi]

As stated in the reference manual RM0433, the STM32H743 MCU has
USART1/2/3/6, UART4/5/7/8, and LPUART1. The patches make all the clock
macros for the serial ports consistent with the documentation.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

 include/dt-bindings/clock/stm32h7-clks.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/dt-bindings/clock/stm32h7-clks.h b/include/dt-bindings/clock/stm32h7-clks.h
index 6637272b3242..330b39c2c303 100644
--- a/include/dt-bindings/clock/stm32h7-clks.h
+++ b/include/dt-bindings/clock/stm32h7-clks.h
@@ -126,8 +126,8 @@
 #define ADC3_CK 128
 #define DSI_CK 129
 #define LTDC_CK 130
-#define USART8_CK 131
-#define USART7_CK 132
+#define UART8_CK 131
+#define UART7_CK 132
 #define HDMICEC_CK 133
 #define I2C3_CK 134
 #define I2C2_CK 135
-- 
2.43.0

[PATCH 5/8] ARM: dts: stm32: add uart8 node for stm32h743 MCU

[Dario Binacchi]

Add support for UART8 by applying the settings specified in the
reference manual RM0433.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

 arch/arm/boot/dts/st/stm32h743.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/st/stm32h743.dtsi b/arch/arm/boot/dts/st/stm32h743.dtsi
index b8d4c44c8a82..2f19cfbc57ad 100644
--- a/arch/arm/boot/dts/st/stm32h743.dtsi
+++ b/arch/arm/boot/dts/st/stm32h743.dtsi
@@ -211,6 +211,14 @@ dac2: dac@2 {
 			};
 		};
 
+		uart8: serial@40007c00 {
+			compatible = "st,stm32h7-uart";
+			reg = <0x40007c00 0x400>;
+			interrupts = <83>;
+			status = "disabled";
+			clocks = <&rcc UART8_CK>;
+		};
+
 		usart1: serial@40011000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x40011000 0x400>;
-- 
2.43.0

[PATCH 6/8] ARM: dts: stm32: add pin map for UART8 controller on stm32h743

[Dario Binacchi]

Add a pin map configuration for using the UART8 controller on the
stm32h743 MCU.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

 arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi b/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
index ad00c1080a96..96022afd0168 100644
--- a/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
+++ b/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
@@ -211,6 +211,19 @@ pins2 {
 		};
 	};
 
+	uart8_pins_a: uart8-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('J', 8, AF8)>; /* UART8_TX */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('J', 9, AF8)>; /* UART8_RX */
+			bias-disable;
+		};
+	};
+
 	usart1_pins_a: usart1-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('B', 14, AF4)>; /* USART1_TX */
-- 
2.43.0

[PATCH 7/8] ARM: dts: stm32: add an extra pin map for USART1 on stm32h743

[Dario Binacchi]

Add an additional pin map configuration for using the USART1 controller
on the stm32h743 MCU.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

 arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi b/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
index 96022afd0168..8a6db484383d 100644
--- a/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
+++ b/arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi
@@ -237,6 +237,19 @@ pins2 {
 		};
 	};
 
+	usart1_pins_b: usart1-1 {
+		pins1 {
+			pinmux = <STM32_PINMUX('A', 9, AF7)>; /* USART1_TX */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('A', 10, AF7)>; /* USART1_RX */
+			bias-disable;
+		};
+	};
+
 	usart2_pins_a: usart2-0 {
 		pins1 {
 			pinmux = <STM32_PINMUX('D', 5, AF7)>; /* USART2_TX */
-- 
2.43.0

[PATCH 8/8] ARM: dts: stm32: support STM32h747i-disco board

[Dario Binacchi]

The board includes an STM32H747XI SoC with the following resources:
 - 2 Mbytes Flash
 - 1 Mbyte SRAM
 - LCD-TFT controller
 - MIPI-DSI interface
 - FD-CAN
 - USB 2.0 high-speed/full-speed
 - Ethernet MAC
 - camera interface

Detailed information can be found at:
https://www.st.com/en/evaluation-tools/stm32h747i-disco.html

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>

---

 arch/arm/boot/dts/st/Makefile             |   1 +
 arch/arm/boot/dts/st/stm32h747i-disco.dts | 136 ++++++++++++++++++++++
 2 files changed, 137 insertions(+)
 create mode 100644 arch/arm/boot/dts/st/stm32h747i-disco.dts

diff --git a/arch/arm/boot/dts/st/Makefile b/arch/arm/boot/dts/st/Makefile
index 60d55516f723..c66959edac12 100644
--- a/arch/arm/boot/dts/st/Makefile
+++ b/arch/arm/boot/dts/st/Makefile
@@ -28,6 +28,7 @@ dtb-$(CONFIG_ARCH_STM32) += \
 	stm32746g-eval.dtb \
 	stm32h743i-eval.dtb \
 	stm32h743i-disco.dtb \
+	stm32h747i-disco.dtb \
 	stm32h750i-art-pi.dtb \
 	stm32mp133c-prihmb.dtb \
 	stm32mp135f-dhcor-dhsbc.dtb \
diff --git a/arch/arm/boot/dts/st/stm32h747i-disco.dts b/arch/arm/boot/dts/st/stm32h747i-disco.dts
new file mode 100644
index 000000000000..99f0255dae8e
--- /dev/null
+++ b/arch/arm/boot/dts/st/stm32h747i-disco.dts
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2025 Amarula Solutions, Dario Binacchi <dario.binacchi@amarulasolutions.com>
+ */
+
+/dts-v1/;
+#include "stm32h743.dtsi"
+#include "stm32h7-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "STMicroelectronics STM32H747i-Discovery board";
+	compatible = "st,stm32h747i-disco", "st,stm32h747";
+
+	chosen {
+		bootargs = "root=/dev/ram";
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@d0000000 {
+		device_type = "memory";
+		reg = <0xd0000000 0x2000000>;
+	};
+
+	aliases {
+		serial0 = &usart1;
+		serial1 = &uart8;
+	};
+
+	v3v3: regulator-v3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "v3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led-green {
+			gpios = <&gpioi 12 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+		};
+		led-orange {
+			gpios = <&gpioi 13 GPIO_ACTIVE_LOW>;
+		};
+		led-red {
+			gpios = <&gpioi 14 GPIO_ACTIVE_LOW>;
+		};
+		led-blue {
+			gpios = <&gpioi 15 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		autorepeat;
+		button-0 {
+			label = "User";
+			linux,code = <KEY_WAKEUP>;
+			gpios = <&gpioc 13 GPIO_ACTIVE_HIGH>;
+		};
+		button-1 {
+			label = "JoySel";
+			linux,code = <KEY_ENTER>;
+			gpios = <&gpiok 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		};
+		button-2 {
+			label = "JoyDown";
+			linux,code = <KEY_DOWN>;
+			gpios = <&gpiok 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		};
+		button-3 {
+			label = "JoyUp";
+			linux,code = <KEY_UP>;
+			gpios = <&gpiok 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		};
+		button-4 {
+			label = "JoyLeft";
+			linux,code = <KEY_LEFT>;
+			gpios = <&gpiok 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		};
+		button-5 {
+			label = "JoyRight";
+			linux,code = <KEY_RIGHT>;
+			gpios = <&gpiok 5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		};
+	};
+};
+
+&clk_hse {
+	clock-frequency = <25000000>;
+};
+
+&mac {
+	status = "disabled";
+	pinctrl-0 = <&ethernet_rmii>;
+	pinctrl-names = "default";
+	phy-mode = "rmii";
+	phy-handle = <&phy0>;
+
+	mdio0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+		phy0: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};
+
+&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>;
+	cd-gpios = <&gpioi 8 GPIO_ACTIVE_LOW>;
+	broken-cd;
+	st,neg-edge;
+	bus-width = <4>;
+	vmmc-supply = <&v3v3>;
+	status = "okay";
+};
+
+&usart1 {
+	pinctrl-0 = <&usart1_pins_b>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&uart8 {
+	pinctrl-0 = <&uart8_pins_a>;
+	pinctrl-names = "default";
+	status = "okay";
+};
-- 
2.43.0

Re: [PATCH 2/8] dt-bindings: arm: stm32: add compatible for stm32h747i-disco board

[Krzysztof Kozlowski]

On Sun, Apr 27, 2025 at 09:43:21AM GMT, Dario Binacchi wrote:
> The board includes an STM32H747XI SoC with the following resources:
>  - 2 Mbytes Flash
>  - 1 MByte SRAM
>  - LCD-TFT controller
>  - MIPI-DSI interface
>  - FD-CAN
>  - USB 2.0 high-speed/full-speed
>  - Ethernet MAC
>  - camera interface
> 
> Detailed information can be found at:
> https://www.st.com/en/evaluation-tools/stm32h747i-disco.html
> 
> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
> ---
> 
>  Documentation/devicetree/bindings/arm/stm32/stm32.yaml | 4 ++++
>  1 file changed, 4 insertions(+)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

Re: [PATCH 4/8] clk: stm32h7: rename USART{7,8}_CK to UART{7,8}_CK

[Krzysztof Kozlowski]

On Sun, Apr 27, 2025 at 09:43:23AM GMT, Dario Binacchi wrote:
> As stated in the reference manual RM0433, the STM32H743 MCU has
> USART1/2/3/6, UART4/5/7/8, and LPUART1. The patches make all the clock
> macros for the serial ports consistent with the documentation.
> 
> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
> ---
> 
>  include/dt-bindings/clock/stm32h7-clks.h | 4 ++--

dt-bindings subject prefix

Please use subject prefixes matching the subsystem. You can get them for
example with 'git log --oneline -- DIRECTORY_OR_FILE' on the directory
your patch is touching. For bindings, the preferred subjects are
explained here:
https://www.kernel.org/doc/html/latest/devicetree/bindings/submitting-patches.html#i-for-patch-submitters

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

Re: [PATCH 0/8] Support STM32h747i-disco board

[Alexandre TORGUE]

Hi Dario

On 4/27/25 09:43, Dario Binacchi wrote:
> The series adds support for STM32h747i-disco board
> 
> The board includes an STM32H747XI SoC with the following resources:
>   - 2 Mbytes Flash
>   - 1 Mbyte SRAM
>   - LCD-TFT controller
>   - MIPI-DSI interface
>   - FD-CAN
>   - USB 2.0 high-speed/full-speed
>   - Ethernet MAC
>   - camera interface
> 
> Detailed information can be found at:
> https://www.st.com/en/evaluation-tools/stm32h747i-disco.html
> 
> 
> Dario Binacchi (8):
>    ARM: dts: stm32h7-pinctrl: add _a suffix to u[s]art_pins phandles
>    dt-bindings: arm: stm32: add compatible for stm32h747i-disco board
>    ARM: stm32: add a new SoC - STM32H747
>    clk: stm32h7: rename USART{7,8}_CK to UART{7,8}_CK
>    ARM: dts: stm32: add uart8 node for stm32h743 MCU
>    ARM: dts: stm32: add pin map for UART8 controller on stm32h743
>    ARM: dts: stm32: add an extra pin map for USART1 on stm32h743
>    ARM: dts: stm32: support STM32h747i-disco board
> 
>   .../devicetree/bindings/arm/stm32/stm32.yaml  |   4 +
>   arch/arm/boot/dts/st/Makefile                 |   1 +
>   arch/arm/boot/dts/st/stm32h7-pinctrl.dtsi     |  34 ++++-
>   arch/arm/boot/dts/st/stm32h743.dtsi           |   8 ++
>   arch/arm/boot/dts/st/stm32h743i-disco.dts     |   2 +-
>   arch/arm/boot/dts/st/stm32h743i-eval.dts      |   2 +-
>   arch/arm/boot/dts/st/stm32h747i-disco.dts     | 136 ++++++++++++++++++
>   arch/arm/boot/dts/st/stm32h750i-art-pi.dts    |   6 +-
>   arch/arm/mach-stm32/board-dt.c                |   1 +
>   include/dt-bindings/clock/stm32h7-clks.h      |   4 +-
>   10 files changed, 187 insertions(+), 11 deletions(-)
>   create mode 100644 arch/arm/boot/dts/st/stm32h747i-disco.dts
> 

Series applied on stm32-next. I changed patch 4 commit title according 
to Krzysztof comment.

Cheers
Alex