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8299d1f057
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
97 lines
2.8 KiB
Diff
97 lines
2.8 KiB
Diff
From e7972981794db2cfa349aa5d34171f83d4ffe830 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Fri, 6 Nov 2020 18:52:25 +0000
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Subject: [PATCH] dtoverlays: Add an overlay for the EDT FT5406
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touchscreen
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This touchscreen controller is used by the 7" DSI panel, and
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this overlay configures it for when it is NOT being polled by
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the firmware.
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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 | 14 +++++++
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.../boot/dts/overlays/edt-ft5406-overlay.dts | 42 +++++++++++++++++++
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3 files changed, 57 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/edt-ft5406-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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@@ -40,6 +40,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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draws.dtbo \
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dwc-otg.dtbo \
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dwc2.dtbo \
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+ edt-ft5406.dtbo \
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enc28j60.dtbo \
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enc28j60-spi2.dtbo \
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exc3000.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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@@ -733,6 +733,20 @@ Params: dr_mode Dual rol
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[ The ds1307-rtc overlay has been deleted. See i2c-rtc. ]
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+Name: edt-ft5406
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+Info: Overlay for the EDT FT5406 touchscreen on the CSI/DSI I2C interface.
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+ This works with the Raspberry Pi 7" touchscreen when not being polled
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+ by the firmware.
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+ You MUST use either "disable_touchscreen=1" or "ignore_lcd=1" in
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+ config.txt to stop the firmware polling the touchscreen.
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+Load: dtoverlay=edt-ft5406,<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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+
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+
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Name: enc28j60
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Info: Overlay for the Microchip ENC28J60 Ethernet Controller on SPI0
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Load: dtoverlay=enc28j60,<param>=<val>
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/edt-ft5406-overlay.dts
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@@ -0,0 +1,42 @@
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+/*
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+ * Device Tree overlay for RaspberryPi 7" Touchscreen panel
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+ *
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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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+/ {
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+ compatible = "brcm,bcm2835";
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+
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+ fragment@0 {
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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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+ ft5406: ts@38 {
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+ compatible = "edt,edt-ft5406";
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+ reg = <0x38>;
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+
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+ touchscreen-size-x = < 800 >;
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+ touchscreen-size-y = < 480 >;
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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 = <&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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+ __overrides__ {
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+ sizex = <&ft5406>,"touchscreen-size-x:0";
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+ sizey = <&ft5406>,"touchscreen-size-y:0";
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+ invx = <&ft5406>,"touchscreen-inverted-x?";
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+ invy = <&ft5406>,"touchscreen-inverted-y?";
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+ swapxy = <&ft5406>,"touchscreen-swapped-x-y?";
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+ };
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+};
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