openwrt/target/linux/bcm27xx/patches-5.15/950-0697-dtoverlays-Add-overlays-for-Pimoroni-Hyperpixel-disp.patch

From 4aa526733f16267bf28ee312e0b5b2ce3246f246 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Thu, 6 Jan 2022 13:04:34 +0000
Subject: [PATCH] dtoverlays: Add overlays for Pimoroni Hyperpixel
 displays

Adds an overlays for the Pimoroni HyperPixel4, HyperPixel 4
Square, and HyperPixel 2 Round DPI displays.

We have a conflict over the use of GPIO 27 for touch screen
interrupt and SPI CLK for configuring the display on the
two HyperPixel4 displays.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 arch/arm/boot/dts/overlays/Makefile           |   3 +
 arch/arm/boot/dts/overlays/README             |  33 +++++
 .../dts/overlays/vc4-kms-dpi-hyperpixel.dtsi  |  94 +++++++++++++++
 .../vc4-kms-dpi-hyperpixel2r-overlay.dts      | 114 ++++++++++++++++++
 .../vc4-kms-dpi-hyperpixel4-overlay.dts       |  57 +++++++++
 .../vc4-kms-dpi-hyperpixel4sq-overlay.dts     |  36 ++++++
 6 files changed, 337 insertions(+)
 create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dpi-hyperpixel.dtsi
 create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dpi-hyperpixel2r-overlay.dts
 create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dpi-hyperpixel4-overlay.dts
 create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dpi-hyperpixel4sq-overlay.dts

--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -235,6 +235,9 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	vc4-fkms-v3d.dtbo \
 	vc4-fkms-v3d-pi4.dtbo \
 	vc4-kms-dpi-generic.dtbo \
+	vc4-kms-dpi-hyperpixel2r.dtbo \
+	vc4-kms-dpi-hyperpixel4.dtbo \
+	vc4-kms-dpi-hyperpixel4sq.dtbo \
 	vc4-kms-dpi-panel.dtbo \
 	vc4-kms-dsi-7inch.dtbo \
 	vc4-kms-dsi-lt070me05000.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -3676,6 +3676,39 @@ Params: clock-frequency         Display
         rotate                  Display rotation {0,90,180,270} (default 0)
 
 
+Name:   vc4-kms-dpi-hyperpixel2r
+Info:   Enable the KMS drivers for the Pimoroni HyperPixel2 Round DPI display.
+        Requires vc4-kms-v3d to be loaded.
+Load:   dtoverlay=vc4-kms-dpi-hyperpixel2r,<param>=<val>
+Params: disable-touch           Disables the touch controller
+        touchscreen-inverted-x  Inverts X direction of touch controller
+        touchscreen-inverted-y  Inverts Y direction of touch controller
+        touchscreen-swapped-x-y Swaps X & Y axes of touch controller
+        rotate                  Display rotation {0,90,180,270} (default 0)
+
+
+Name:   vc4-kms-dpi-hyperpixel4
+Info:   Enable the KMS drivers for the Pimoroni HyperPixel4 DPI display.
+        Requires vc4-kms-v3d to be loaded.
+Load:   dtoverlay=vc4-kms-dpi-hyperpixel4,<param>=<val>
+Params: disable-touch           Disables the touch controller
+        touchscreen-inverted-x  Inverts X direction of touch controller
+        touchscreen-inverted-y  Inverts Y direction of touch controller
+        touchscreen-swapped-x-y Swaps X & Y axes of touch controller
+        rotate                  Display rotation {0,90,180,270} (default 0)
+
+
+Name:   vc4-kms-dpi-hyperpixel4sq
+Info:   Enable the KMS drivers for the Pimoroni HyperPixel4 Square DPI display.
+        Requires vc4-kms-v3d to be loaded.
+Load:   dtoverlay=vc4-kms-dpi-hyperpixel4sq,<param>=<val>
+Params: disable-touch           Disables the touch controller
+        touchscreen-inverted-x  Inverts X direction of touch controller
+        touchscreen-inverted-y  Inverts Y direction of touch controller
+        touchscreen-swapped-x-y Swaps X & Y axes of touch controller
+        rotate                  Display rotation {0,90,180,270} (default 0)
+
+
 Name:   vc4-kms-dpi-panel
 Info:   Enable a preconfigured KMS DPI panel.
         Requires vc4-kms-v3d to be loaded.
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/vc4-kms-dpi-hyperpixel.dtsi
@@ -0,0 +1,94 @@
+/*
+ * vc4-kms-dpi-hyperpixel4.dtsi
+ * Commmon initialisation for HyperPixel DPI displays
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/bcm2835.h>
+
+/ {
+	compatible = "brcm,bcm2835";
+
+	fragment@0 {
+		target-path = "/";
+		__overlay__ {
+			spi {
+				compatible = "spi-gpio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				pinctrl-0 = <&spi_pins>;
+				pinctrl-names = "default";
+
+				sck-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
+				mosi-gpios = <&gpio 26 GPIO_ACTIVE_HIGH>;
+				cs-gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+				num-chipselects = <1>;
+				sck-idle-input;
+
+				panel: display@0 {
+					reg = <0>;
+					/* 100 kHz */
+					spi-max-frequency = <100000>;
+					backlight = <&backlight>;
+					rotation = <0>;
+
+					port {
+						panel_in: endpoint {
+							remote-endpoint = <&dpi_out>;
+						};
+					};
+				};
+			};
+
+			backlight: backlight {
+				compatible = "gpio-backlight";
+				gpios = <&gpio 19 0>;
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&dpi>;
+		__overlay__  {
+			status = "okay";
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&dpi_18bit_cpadhi_gpio0>;
+
+			port {
+				dpi_out: endpoint {
+					remote-endpoint = <&panel_in>;
+				};
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&gpio>;
+		__overlay__ {
+			spi_pins: hyperpixel4_spi_pins {
+				brcm,pins = <27 18 26>;
+				brcm,pull = <BCM2835_PUD_UP BCM2835_PUD_UP BCM2835_PUD_OFF>;
+				brcm,function = <0>;
+			};
+		};
+	};
+
+	fragment@3 {
+		target-path = "/";
+		__overlay__ {
+			i2c_gpio: i2c@0 {
+				compatible = "i2c-gpio";
+				gpios = <&gpio 10 0 /* sda */
+					 &gpio 11 0>; /* scl */
+				i2c-gpio,delay-us = <4>;        /* ~100 kHz */
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+	};
+
+	__overrides__ {
+		rotate = <&panel>, "rotation:0";
+	};
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/vc4-kms-dpi-hyperpixel2r-overlay.dts
@@ -0,0 +1,114 @@
+/*
+ * vc4-kms-dpi-hyperpixel2r-overlay.dts
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/bcm2835.h>
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2835";
+
+	fragment@0 {
+		target-path = "/";
+		__overlay__ {
+			spi {
+				compatible = "spi-gpio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				pinctrl-0 = <&spi_pins>;
+				pinctrl-names = "default";
+
+				sck-gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;
+				mosi-gpios = <&gpio 10 GPIO_ACTIVE_HIGH>;
+				cs-gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+				num-chipselects = <1>;
+
+				panel: display@0 {
+					compatible = "pimoroni,hyperpixel2round";
+					reg = <0>;
+					/* 100 kHz */
+					spi-max-frequency = <100000>;
+					backlight = <&backlight>;
+					rotation = <0>;
+
+					port {
+						panel_in: endpoint {
+							remote-endpoint = <&dpi_out>;
+						};
+					};
+				};
+			};
+
+			backlight: backlight {
+				compatible = "gpio-backlight";
+				gpios = <&gpio 19 0>;
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&dpi>;
+		__overlay__  {
+			status = "okay";
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&dpi_18bit_cpadhi_gpio0>;
+
+			port {
+				dpi_out: endpoint {
+					remote-endpoint = <&panel_in>;
+				};
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&gpio>;
+		__overlay__ {
+			spi_pins: hyperpixel4_spi_pins {
+				brcm,pins = <27 18 26>;
+				brcm,pull = <BCM2835_PUD_UP BCM2835_PUD_UP BCM2835_PUD_OFF>;
+				brcm,function = <0>;
+			};
+		};
+	};
+
+	fragment@3 {
+		target-path = "/";
+		__overlay__ {
+			i2c_gpio: i2c@0 {
+				compatible = "i2c-gpio";
+				status = "disabled";
+
+				gpios = <&gpio 10 GPIO_ACTIVE_HIGH /* sda */
+					 &gpio 11 GPIO_ACTIVE_HIGH>; /* scl */
+				i2c-gpio,delay-us = <4>;        /* ~100 kHz */
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				polytouch: edt-ft5x06@15 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					compatible = "edt,edt-ft5406";
+					reg = <0x15>;
+					interrupt-parent = <&gpio>;
+					interrupts = <27 0x02>;
+					touchscreen-size-x = <240>;
+					touchscreen-size-y = <240>;
+				};
+			};
+		};
+	};
+
+	__overrides__ {
+		disable-touch = <0>,"-3";
+		touchscreen-inverted-x = <&polytouch>,"touchscreen-inverted-x?";
+		touchscreen-inverted-y = <&polytouch>,"touchscreen-inverted-y!";
+		touchscreen-swapped-x-y = <&polytouch>,"touchscreen-swapped-x-y!";
+		rotate = <&panel>, "rotation:0";
+	};
+
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/vc4-kms-dpi-hyperpixel4-overlay.dts
@@ -0,0 +1,57 @@
+/*
+ * vc4-kms-dpi-hyperpixel4sq-overlay.dts
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include "vc4-kms-dpi-hyperpixel.dtsi"
+
+&panel {
+	compatible = "pimoroni,hyperpixel4";
+};
+
+/ {
+	fragment@11 {
+		target = <&i2c_gpio>;
+		__overlay__ {
+			/* needed to avoid dtc warning */
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ft6236_14: ft6236@14 {
+				compatible = "goodix,gt911";
+				reg = <0x14>;
+				interrupt-parent = <&gpio>;
+				interrupts = <27 2>;
+				touchscreen-size-x = <480>;
+				touchscreen-size-y = <800>;
+				touchscreen-x-mm = <51>;
+				touchscreen-y-mm = <85>;
+				touchscreen-inverted-y;
+				touchscreen-swapped-x-y;
+			};
+			ft6236_5d: ft6236@5d {
+				compatible = "goodix,gt911";
+				reg = <0x5d>;
+				interrupt-parent = <&gpio>;
+				interrupts = <27 2>;
+				touchscreen-size-x = <480>;
+				touchscreen-size-y = <800>;
+				touchscreen-x-mm = <51>;
+				touchscreen-y-mm = <85>;
+				touchscreen-inverted-y;
+				touchscreen-swapped-x-y;
+			};
+		};
+	};
+
+	__overrides__ {
+		disable-touch = <0>,"-3-11";
+		touchscreen-inverted-x = <&ft6236_14>,"touchscreen-inverted-x?",
+					 <&ft6236_5d>,"touchscreen-inverted-x?";
+		touchscreen-inverted-y = <&ft6236_14>,"touchscreen-inverted-y!",
+					 <&ft6236_5d>,"touchscreen-inverted-y!";
+		touchscreen-swapped-x-y = <&ft6236_14>,"touchscreen-swapped-x-y!",
+					  <&ft6236_5d>,"touchscreen-swapped-x-y!";
+	};
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/vc4-kms-dpi-hyperpixel4sq-overlay.dts
@@ -0,0 +1,36 @@
+/*
+ * vc4-kms-dpi-hyperpixel4-overlay.dts
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include "vc4-kms-dpi-hyperpixel.dtsi"
+
+&panel {
+	compatible = "pimoroni,hyperpixel4square";
+};
+
+/ {
+	fragment@11 {
+		target = <&i2c_gpio>;
+		__overlay__ {
+			polytouch: edt-ft5x06@48 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				compatible = "edt,edt-ft5406";
+				reg = <0x48>;
+				interrupt-parent = <&gpio>;
+				interrupts = <27 0x02>;
+				touchscreen-size-x = <720>;
+				touchscreen-size-y = <720>;
+			};
+		};
+	};
+	__overrides__ {
+		disable-touch = <0>,"-3-11";
+		touchscreen-inverted-x = <&polytouch>,"touchscreen-inverted-x?";
+		touchscreen-inverted-y = <&polytouch>,"touchscreen-inverted-y!";
+		touchscreen-swapped-x-y = <&polytouch>,"touchscreen-swapped-x-y!";
+	};
+};