ARM: dts: stm32: Add Engicam i.Core STM32MP1 C.TOUCH 2.0 10.1" OF

Engicam C.TOUCH 2.0 is an EDIMM compliant general purpose Carrier
board.

Genaral features:
- Ethernet 10/100
- Wifi/BT
- USB Type A/OTG
- Audio Out
- CAN
- 10" LVDS Panel (SN65DSI84 DSI-LVDS bridge on SoM)

i.Core STM32MP1 is an EDIMM SoM based on STM32MP157A from Engicam.

10.1" OF is a capacitive touch 10.1" Open Frame panel solutions.

i.Core STM32MP1 needs to mount on top of C.TOUCH 2.0 carrier with
pluged 10.1" OF for creating complete i.Core STM32MP1 C.TOUCH 2.0
10.1" Open Frame board.

Add support for it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

2 files changed, 133 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 0de64f237cd8..641220e970e8 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1140,6 +1140,7 @@ dtb-$(CONFIG_ARCH_STM32) += \
 	stm32mp157a-microgea-stm32mp1-microdev2.0.dtb \
 	stm32mp157a-microgea-stm32mp1-microdev2.0-of7.dtb \
 	stm32mp157a-icore-stm32mp1-ctouch2.dtb \
+	stm32mp157a-icore-stm32mp1-ctouch2-of10.dtb \
 	stm32mp157a-icore-stm32mp1-edimm2.2.dtb \
 	stm32mp157a-stinger96.dtb \
 	stm32mp157c-dhcom-pdk2.dtb \
diff --git a/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-ctouch2-of10.dts b/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-ctouch2-of10.dts
new file mode 100644
index 000000000000..2a2829283456
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-ctouch2-of10.dts
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright (c) STMicroelectronics 2019 - All Rights Reserved
+ * Copyright (c) 2020 Engicam srl
+ * Copyright (c) 2020 Amarula Solutons(India)
+ */
+
+/dts-v1/;
+#include "stm32mp157.dtsi"
+#include "stm32mp157a-icore-stm32mp1.dtsi"
+#include "stm32mp15-pinctrl.dtsi"
+#include "stm32mp15xxaa-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Engicam i.Core STM32MP1 C.TOUCH 2.0 10.1\" Open Frame";
+	compatible = "engicam,icore-stm32mp1-ctouch2-of10",
+		     "engicam,icore-stm32mp1", "st,stm32mp157";
+
+	aliases {
+		serial0 = &uart4;
+	};
+
+	backlight: backlight {
+		compatible = "gpio-backlight";
+		gpios = <&gpiod 13 GPIO_ACTIVE_HIGH>;
+		default-on;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	panel {
+		compatible = "ampire,am-1280800n3tzqw-t00h";
+		backlight = <&backlight>;
+		power-supply = <&v3v3>;
+
+		port {
+			panel_in_lvds: endpoint {
+				remote-endpoint = <&bridge_out>;
+			};
+		};
+	};
+};
+
+&dsi {
+	status = "okay";
+	phy-dsi-supply = <&reg18>;
+
+	ports {
+		port@0 {
+			reg = <0>;
+			dsi_in: endpoint {
+				remote-endpoint = <&ltdc_ep0_out>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			dsi_out: endpoint {
+				remote-endpoint = <&bridge_in>;
+			};
+		};
+	};
+};
+
+&i2c6 {
+	i2c-scl-falling-time-ns = <20>;
+	i2c-scl-rising-time-ns = <185>;
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&i2c6_pins_a>;
+	pinctrl-1 = <&i2c6_sleep_pins_a>;
+	status = "okay";
+
+	bridge@2c {
+		compatible = "ti,sn65dsi84";
+		reg = <0x2c>;
+		enable-gpios = <&gpiof 15 GPIO_ACTIVE_HIGH>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				bridge_in: endpoint {
+					remote-endpoint = <&dsi_out>;
+					data-lanes = <1 2>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+				bridge_out: endpoint {
+					remote-endpoint = <&panel_in_lvds>;
+				};
+			};
+		};
+	};
+};
+
+&ltdc {
+	status = "okay";
+
+	port {
+		ltdc_ep0_out: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&dsi_in>;
+		};
+	};
+};
+
+&sdmmc1 {
+	bus-width = <4>;
+	disable-wp;
+	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>;
+	st,neg-edge;
+	vmmc-supply = <&v3v3>;
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default", "sleep", "idle";
+	pinctrl-0 = <&uart4_pins_a>;
+	pinctrl-1 = <&uart4_sleep_pins_a>;
+	pinctrl-2 = <&uart4_idle_pins_a>;
+	status = "okay";
+};