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538a1d740c
The patches were generated from the RPi repo with the following command: git format-patch v6.6.58..rpi-6.6.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
178 lines
4.8 KiB
Diff
178 lines
4.8 KiB
Diff
From 6f2d1b4c3132206de40247b604638a51277131fb Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Mon, 14 Oct 2024 18:53:43 +0100
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Subject: [PATCH 1322/1350] dtoverlays: Add an overlay for Waveshare's 800x480
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4.3" DSI screen
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It tried to be a clone of the Pi 7" display, but isn't, and gives
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corrupt images with the current timings.
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Add a new overlay for it.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/Makefile | 1 +
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arch/arm/boot/dts/overlays/README | 17 +++
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.../vc4-kms-dsi-waveshare-800x480-overlay.dts | 119 ++++++++++++++++++
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3 files changed, 137 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dsi-waveshare-800x480-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -319,6 +319,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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vc4-kms-dsi-ili9881-7inch.dtbo \
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vc4-kms-dsi-lt070me05000.dtbo \
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vc4-kms-dsi-lt070me05000-v2.dtbo \
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+ vc4-kms-dsi-waveshare-800x480.dtbo \
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vc4-kms-dsi-waveshare-panel.dtbo \
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vc4-kms-kippah-7inch.dtbo \
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vc4-kms-v3d.dtbo \
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -5248,6 +5248,23 @@ Load: dtoverlay=vc4-kms-dsi-lt070me050
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Params: <None>
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+Name: vc4-kms-dsi-waveshare-800x480
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+Info: Enable the Waveshare 4.3" 800x480 DSI screen.
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+ It tries to look like the Pi 7" display, but won't accept some of the
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+ timings.
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+ Includes the edt-ft5406 for the touchscreen element.
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+ Requires vc4-kms-v3d to be loaded.
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+Load: dtoverlay=vc4-kms-dsi-waveshare-800x480,<param>=<val>
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+Params: sizex Touchscreen size x (default 800)
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+ sizey Touchscreen size y (default 480)
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+ invx Touchscreen inverted x axis
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+ invy Touchscreen inverted y axis
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+ swapxy Touchscreen swapped x y axis
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+ disable_touch Disables the touch screen overlay driver
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+ dsi0 Use DSI0 and i2c_csi_dsi0 (rather than
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+ the default DSI1 and i2c_csi_dsi).
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+
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+
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Name: vc4-kms-dsi-waveshare-panel
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Info: Enable a Waveshare DSI touchscreen
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Includes the Goodix driver for the touchscreen element.
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/vc4-kms-dsi-waveshare-800x480-overlay.dts
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@@ -0,0 +1,119 @@
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+/*
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+ * Device Tree overlay for Waveshare 4.3" 800x480 panel.
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+ * It tries to look like a Pi 7" panel, but fails with some of the timing
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+ * options.
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+ */
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+
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+/dts-v1/;
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+/plugin/;
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+
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+#include "edt-ft5406.dtsi"
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+
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+/ {
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+ /* No compatible as it will have come from edt-ft5406.dtsi */
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+
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+ dsi_frag: fragment@0 {
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+ target = <&dsi1>;
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+ __overlay__ {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ status = "okay";
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+ port {
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+ dsi_out: endpoint {
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+ remote-endpoint = <&panel_dsi_port>;
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+ };
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+ };
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+
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+ panel: panel-dsi-generic@0 {
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+ // See panel-dsi.yaml binding
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+ compatible = "waveshare,4-3-inch-dsi","panel-dsi";
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+ reg = <0>;
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+ power-supply = <®_display>;
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+ backlight = <®_display>;
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+ dsi-color-format = "RGB888";
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+ mode = "MODE_VIDEO";
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+ width-mm = <0>;
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+ height-mm = <0>;
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+
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+ port {
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+ panel_dsi_port: endpoint {
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+ data-lanes = <1>;
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+ remote-endpoint = <&dsi_out>;
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+ };
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+ };
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+
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+ timing: panel-timing {
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+ clock-frequency = <27777000>;
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+ hactive = <800>;
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+ vactive = <480>;
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+ hfront-porch = <59>;
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+ hsync-len = <2>;
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+ hback-porch = <45>;
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+ vfront-porch = <7>;
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+ vsync-len = <2>;
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+ vback-porch = <22>;
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+ };
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+ };
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+ };
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+ };
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+
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+ fragment@1 {
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+ target-path = "/";
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+ __overlay__ {
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+ reg_bridge: reg_bridge@1 {
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+ reg = <1>;
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+ compatible = "regulator-fixed";
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+ regulator-name = "bridge_reg";
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+ gpio = <®_display 0 0>;
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+ vin-supply = <®_display>;
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+ enable-active-high;
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+ };
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+ };
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+ };
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+
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+ i2c_frag: fragment@2 {
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+ target = <&i2c_csi_dsi>;
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+ __overlay__ {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ status = "okay";
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+
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+ reg_display: reg_display@45 {
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+ compatible = "raspberrypi,7inch-touchscreen-panel-regulator";
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+ reg = <0x45>;
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+ gpio-controller;
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+ #gpio-cells = <2>;
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+ };
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+ };
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+ };
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+
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+ fragment@3 {
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+ target = <&i2c0if>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@4 {
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+ target = <&i2c0mux>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+ fragment@5 {
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+ target = <&ft5406>;
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+ __overlay__ {
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+ vcc-supply = <®_display>;
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+ reset-gpio = <®_display 1 1>;
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+ };
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+ };
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+
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+ __overrides__ {
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+ dsi0 = <&dsi_frag>, "target:0=",<&dsi0>,
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+ <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>,
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+ <&ts_i2c_frag>, "target:0=",<&i2c_csi_dsi0>,
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+ <®_bridge>, "reg:0=0",
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+ <®_bridge>, "regulator-name=bridge_reg_0";
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+ disable_touch = <&ft5406>, "status=disabled";
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+ };
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+};
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