Add AM654x EVM DT overlays for displays

Add three DT overlays for different AM654x EVM display setups:

- k3-am654-evm-hdmi.dtso for TFP410 based DVI add-on card
- k3-am654-evm-oldi-lcd1evm.dtso for the AM6 EVM LCD kit
- k3-am654-evm-tc358876.dtso for the TC358876 based DisplayPort add-on
  card

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

4 files changed, 321 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 0d5bf80..4e61ec3 100644
--- a/Makefile
+++ b/Makefile
@@ -103,7 +103,11 @@ dtb-tests-arm += \
 	am57xx-beagle-x15.dtb,ti/am57xx-evm-common.dtbo,ti/am57xx-evm.dtbo \
 	am57xx-beagle-x15-revc.dtb,ti/am57xx-evm-common.dtbo,ti/am57xx-evm-reva3.dtbo
 
-dtb-tests-arm64 := ti/k3-am654-base-board.dtb,ti/k3-am654-gp.dtbo
+dtb-tests-arm64 := \
+	ti/k3-am654-base-board.dtb,ti/k3-am654-gp.dtbo \
+	ti/k3-am654-base-board.dtb,ti/k3-am654-evm-hdmi.dtbo \
+	ti/k3-am654-base-board.dtb,ti/k3-am654-evm-oldi-lcd1evm.dtbo \
+	ti/k3-am654-base-board.dtb,ti/k3-am654-evm-tc358876.dtbo
 
 comma := ,
 
diff --git a/arch/arm64/boot/dts/ti/k3-am654-evm-hdmi.dtso b/arch/arm64/boot/dts/ti/k3-am654-evm-hdmi.dtso
new file mode 100644
index 0000000..d76f2ed
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am654-evm-hdmi.dtso
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+/**
+ * J6 PLUS HDMI DISPLAY ADAPTER for am654-evm (connected to J36)
+ * Note: the USB is not connected on am654-evm
+ *
+ * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pinctrl/k3.h>
+
+/ {
+  fragment@101 {
+	target-path = "/";
+
+	__overlay__ {
+		dvi-connector {
+			compatible = "hdmi-connector";
+			ddc-i2c-bus = <&main_i2c1>;
+			digital;
+
+			/* the gpio doesn't support interrupt */
+			hpd-gpios = <&pca9555 11 GPIO_ACTIVE_HIGH>;
+
+			port {
+				dvi_connector_in: endpoint {
+					remote-endpoint = <&tfp410_out>;
+				};
+			};
+		};
+
+		dvi-bridge {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "ti,tfp410";
+			ti,deskew = <3>;
+
+			port@0 {
+				reg = <0>;
+
+				tfp410_in: endpoint {
+					remote-endpoint = <&dpi_out0>;
+					pclk-sample = <1>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				tfp410_out: endpoint {
+					remote-endpoint = <&dvi_connector_in>;
+				};
+			};
+		};
+	};
+  };
+};
+
+&main_pmx0 {
+	dss_vout1_pins_default: dss_vout1_pins_default {
+		pinctrl-single,pins = <
+			AM65X_IOPAD(0x0000, PIN_OUTPUT, 1)	/* VOUT1_DATA0 */
+			AM65X_IOPAD(0x0004, PIN_OUTPUT, 1)	/* VOUT1_DATA1 */
+			AM65X_IOPAD(0x0008, PIN_OUTPUT, 1)	/* VOUT1_DATA2 */
+			AM65X_IOPAD(0x000c, PIN_OUTPUT, 1)	/* VOUT1_DATA3 */
+			AM65X_IOPAD(0x0010, PIN_OUTPUT, 1)	/* VOUT1_DATA4 */
+			AM65X_IOPAD(0x0014, PIN_OUTPUT, 1)	/* VOUT1_DATA5 */
+			AM65X_IOPAD(0x0018, PIN_OUTPUT, 1)	/* VOUT1_DATA6 */
+			AM65X_IOPAD(0x001c, PIN_OUTPUT, 1)	/* VOUT1_DATA7 */
+			AM65X_IOPAD(0x0020, PIN_OUTPUT, 1)	/* VOUT1_DATA8 */
+			AM65X_IOPAD(0x0024, PIN_OUTPUT, 1)	/* VOUT1_DATA9 */
+			AM65X_IOPAD(0x0028, PIN_OUTPUT, 1)	/* VOUT1_DATA10 */
+			AM65X_IOPAD(0x002c, PIN_OUTPUT, 1)	/* VOUT1_DATA11 */
+			AM65X_IOPAD(0x0030, PIN_OUTPUT, 1)	/* VOUT1_DATA12 */
+			AM65X_IOPAD(0x0034, PIN_OUTPUT, 1)	/* VOUT1_DATA13 */
+			AM65X_IOPAD(0x0038, PIN_OUTPUT, 1)	/* VOUT1_DATA14 */
+			AM65X_IOPAD(0x003c, PIN_OUTPUT, 1)	/* VOUT1_DATA15 */
+			AM65X_IOPAD(0x0040, PIN_OUTPUT, 1)	/* VOUT1_DATA16 */
+			AM65X_IOPAD(0x0044, PIN_OUTPUT, 1)	/* VOUT1_DATA17 */
+			AM65X_IOPAD(0x0048, PIN_OUTPUT, 1)	/* VOUT1_DATA18 */
+			AM65X_IOPAD(0x004c, PIN_OUTPUT, 1)	/* VOUT1_DATA19 */
+			AM65X_IOPAD(0x0050, PIN_OUTPUT, 1)	/* VOUT1_DATA20 */
+			AM65X_IOPAD(0x0054, PIN_OUTPUT, 1)	/* VOUT1_DATA21 */
+			AM65X_IOPAD(0x0058, PIN_OUTPUT, 1)	/* VOUT1_DATA22 */
+			AM65X_IOPAD(0x005c, PIN_OUTPUT, 1)	/* VOUT1_DATA23 */
+			AM65X_IOPAD(0x0060, PIN_OUTPUT, 1)	/* VOUT1_VSYNC */
+			AM65X_IOPAD(0x0064, PIN_OUTPUT, 1)	/* VOUT1_HSYNC */
+			AM65X_IOPAD(0x0068, PIN_OUTPUT, 1)	/* VOUT1_PCLK */
+			AM65X_IOPAD(0x006c, PIN_OUTPUT, 1)	/* VOUT1_DE */
+		>;
+	};
+};
+
+&pca9555 {
+	p6 {
+		/* P06 - CON_LCD_PWR_DN */
+		gpio-hog;
+		gpios = <6 GPIO_ACTIVE_HIGH>;
+		output-low;
+		line-name = "CON_LCD_PWR_DN";
+	};
+};
+
+&dss {
+	status = "ok";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&dss_vout1_pins_default>;
+
+	assigned-clocks = <&k3_clks 67 2>;
+	assigned-clock-parents = <&k3_clks 67 5>;
+};
+
+&dss_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	port@1 {
+		reg = <1>;
+
+		dpi_out0: endpoint {
+			remote-endpoint = <&tfp410_in>;
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am654-evm-oldi-lcd1evm.dtso b/arch/arm64/boot/dts/ti/k3-am654-evm-oldi-lcd1evm.dtso
new file mode 100644
index 0000000..304fc66
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am654-evm-oldi-lcd1evm.dtso
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/**
+ * OLDI-LCD1EVM Rocktech integrated panel and touch DT overlay for AM654-EVM.
+ *
+ * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/pwm/pwm.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+  fragment@101 {
+	target-path = "/";
+
+	__overlay__ {
+		display0 {
+			compatible = "rocktech,rk101ii01d-ct";
+			backlight = <&lcd_bl>;
+			enable-gpios = <&pca9555 8 GPIO_ACTIVE_HIGH>;
+
+			port {
+				lcd_in0: endpoint {
+					remote-endpoint = <&oldi_out0>;
+				};
+			};
+		};
+
+		lcd_bl: backlight {
+			compatible = "pwm-backlight";
+			pwms = <&ecap0 0 50000 PWM_POLARITY_INVERTED>;
+			brightness-levels = <0 32 64 96 128 160 192 224 255>;
+			default-brightness-level = <8>;
+		};
+	};
+  };
+};
+
+&dss {
+	status = "ok";
+};
+
+&dss_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	port@0 {
+		reg = <0>;
+
+		oldi_out0: endpoint {
+			remote-endpoint = <&lcd_in0>;
+		};
+	};
+};
+
+&main_i2c1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	gt928: touchscreen@14 {
+		status = "okay";
+		compatible = "goodix,gt928";
+		reg = <0x14>;
+
+		interrupt-parent = <&pca9554>;
+		interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+		touchscreen-size-x = <1280>;
+		touchscreen-size-y = <800>;
+
+		reset-gpios = <&pca9555 9 GPIO_ACTIVE_HIGH>;
+		irq-gpios = <&pca9554 3 GPIO_ACTIVE_HIGH>;
+	};
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am654-evm-tc358876.dtso b/arch/arm64/boot/dts/ti/k3-am654-evm-tc358876.dtso
new file mode 100644
index 0000000..cdf410e
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am654-evm-tc358876.dtso
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: GPL-2.0
+/**
+ * Toshiba TC358867 expansion board for AM654-EVM.
+ *
+ * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pinctrl/k3.h>
+
+/ {
+  fragment@101 {
+	target-path = "/";
+
+	__overlay__ {
+		dp_refclk: fixed-clock-tc358767 {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <19200000>;
+		};
+	};
+  };
+};
+
+&main_pmx0 {
+	dss_vout1_pins_default: dss_vout1_pins_default {
+		pinctrl-single,pins = <
+			AM65X_IOPAD(0x0000, PIN_OUTPUT, 1)	/* VOUT1_DATA0 */
+			AM65X_IOPAD(0x0004, PIN_OUTPUT, 1)	/* VOUT1_DATA1 */
+			AM65X_IOPAD(0x0008, PIN_OUTPUT, 1)	/* VOUT1_DATA2 */
+			AM65X_IOPAD(0x000c, PIN_OUTPUT, 1)	/* VOUT1_DATA3 */
+			AM65X_IOPAD(0x0010, PIN_OUTPUT, 1)	/* VOUT1_DATA4 */
+			AM65X_IOPAD(0x0014, PIN_OUTPUT, 1)	/* VOUT1_DATA5 */
+			AM65X_IOPAD(0x0018, PIN_OUTPUT, 1)	/* VOUT1_DATA6 */
+			AM65X_IOPAD(0x001c, PIN_OUTPUT, 1)	/* VOUT1_DATA7 */
+			AM65X_IOPAD(0x0020, PIN_OUTPUT, 1)	/* VOUT1_DATA8 */
+			AM65X_IOPAD(0x0024, PIN_OUTPUT, 1)	/* VOUT1_DATA9 */
+			AM65X_IOPAD(0x0028, PIN_OUTPUT, 1)	/* VOUT1_DATA10 */
+			AM65X_IOPAD(0x002c, PIN_OUTPUT, 1)	/* VOUT1_DATA11 */
+			AM65X_IOPAD(0x0030, PIN_OUTPUT, 1)	/* VOUT1_DATA12 */
+			AM65X_IOPAD(0x0034, PIN_OUTPUT, 1)	/* VOUT1_DATA13 */
+			AM65X_IOPAD(0x0038, PIN_OUTPUT, 1)	/* VOUT1_DATA14 */
+			AM65X_IOPAD(0x003c, PIN_OUTPUT, 1)	/* VOUT1_DATA15 */
+			AM65X_IOPAD(0x0040, PIN_OUTPUT, 1)	/* VOUT1_DATA16 */
+			AM65X_IOPAD(0x0044, PIN_OUTPUT, 1)	/* VOUT1_DATA17 */
+			AM65X_IOPAD(0x0048, PIN_OUTPUT, 1)	/* VOUT1_DATA18 */
+			AM65X_IOPAD(0x004c, PIN_OUTPUT, 1)	/* VOUT1_DATA19 */
+			AM65X_IOPAD(0x0050, PIN_OUTPUT, 1)	/* VOUT1_DATA20 */
+			AM65X_IOPAD(0x0054, PIN_OUTPUT, 1)	/* VOUT1_DATA21 */
+			AM65X_IOPAD(0x0058, PIN_OUTPUT, 1)	/* VOUT1_DATA22 */
+			AM65X_IOPAD(0x005c, PIN_OUTPUT, 1)	/* VOUT1_DATA23 */
+			AM65X_IOPAD(0x0060, PIN_OUTPUT, 1)	/* VOUT1_VSYNC */
+			AM65X_IOPAD(0x0064, PIN_OUTPUT, 1)	/* VOUT1_HSYNC */
+			AM65X_IOPAD(0x0068, PIN_OUTPUT, 1)	/* VOUT1_PCLK */
+			AM65X_IOPAD(0x006c, PIN_OUTPUT, 1)	/* VOUT1_DE */
+		>;
+	};
+};
+
+&main_i2c1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	edp-bridge@f {
+		compatible = "toshiba,tc358867", "toshiba,tc358767";
+		reg = <0x0f>;
+
+		reset-gpios = <&pca9555 6 GPIO_ACTIVE_HIGH>;
+
+		clock-names = "ref";
+		clocks = <&dp_refclk>;
+
+		toshiba,hpd-pin = <0>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@1 {
+				reg = <1>;
+
+				bridge_in: endpoint {
+					remote-endpoint = <&dpi_out>;
+				};
+			};
+		};
+	};
+};
+
+&dss {
+	status = "ok";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&dss_vout1_pins_default>;
+
+	assigned-clocks = <&k3_clks 67 2>;
+	assigned-clock-parents = <&k3_clks 67 5>;
+};
+
+&dss_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	port@1 {
+		reg = <1>;
+
+		dpi_out: endpoint {
+			remote-endpoint = <&bridge_in>;
+		};
+	};
+};