diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0381-dtoverlays-Add-an-overlay-for-the-EDT-FT5406-touchsc.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0381-dtoverlays-Add-an-overlay-for-the-EDT-FT5406-touchsc.patch | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0381-dtoverlays-Add-an-overlay-for-the-EDT-FT5406-touchsc.patch b/target/linux/bcm27xx/patches-5.10/950-0381-dtoverlays-Add-an-overlay-for-the-EDT-FT5406-touchsc.patch new file mode 100644 index 0000000000..238b9ae2f6 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0381-dtoverlays-Add-an-overlay-for-the-EDT-FT5406-touchsc.patch @@ -0,0 +1,96 @@ +From e7972981794db2cfa349aa5d34171f83d4ffe830 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.com> +Date: Fri, 6 Nov 2020 18:52:25 +0000 +Subject: [PATCH] dtoverlays: Add an overlay for the EDT FT5406 + touchscreen + +This touchscreen controller is used by the 7" DSI panel, and +this overlay configures it for when it is NOT being polled by +the firmware. + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> +--- + arch/arm/boot/dts/overlays/Makefile | 1 + + arch/arm/boot/dts/overlays/README | 14 +++++++ + .../boot/dts/overlays/edt-ft5406-overlay.dts | 42 +++++++++++++++++++ + 3 files changed, 57 insertions(+) + create mode 100644 arch/arm/boot/dts/overlays/edt-ft5406-overlay.dts + +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -40,6 +40,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ + draws.dtbo \ + dwc-otg.dtbo \ + dwc2.dtbo \ ++ edt-ft5406.dtbo \ + enc28j60.dtbo \ + enc28j60-spi2.dtbo \ + exc3000.dtbo \ +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -733,6 +733,20 @@ Params: dr_mode Dual rol + [ The ds1307-rtc overlay has been deleted. See i2c-rtc. ] + + ++Name: edt-ft5406 ++Info: Overlay for the EDT FT5406 touchscreen on the CSI/DSI I2C interface. ++ This works with the Raspberry Pi 7" touchscreen when not being polled ++ by the firmware. ++ You MUST use either "disable_touchscreen=1" or "ignore_lcd=1" in ++ config.txt to stop the firmware polling the touchscreen. ++Load: dtoverlay=edt-ft5406,<param>=<val> ++Params: sizex Touchscreen size x (default 800) ++ sizey Touchscreen size y (default 480) ++ invx Touchscreen inverted x axis ++ invy Touchscreen inverted y axis ++ swapxy Touchscreen swapped x y axis ++ ++ + Name: enc28j60 + Info: Overlay for the Microchip ENC28J60 Ethernet Controller on SPI0 + Load: dtoverlay=enc28j60,<param>=<val> +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/edt-ft5406-overlay.dts +@@ -0,0 +1,42 @@ ++/* ++ * Device Tree overlay for RaspberryPi 7" Touchscreen panel ++ * ++ */ ++ ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "brcm,bcm2835"; ++ ++ fragment@0 { ++ target = <&i2c_csi_dsi>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ status = "okay"; ++ ft5406: ts@38 { ++ compatible = "edt,edt-ft5406"; ++ reg = <0x38>; ++ ++ touchscreen-size-x = < 800 >; ++ touchscreen-size-y = < 480 >; ++ }; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&i2c0if>; ++ __overlay__ { ++ status = "okay"; ++ }; ++ }; ++ ++ __overrides__ { ++ sizex = <&ft5406>,"touchscreen-size-x:0"; ++ sizey = <&ft5406>,"touchscreen-size-y:0"; ++ invx = <&ft5406>,"touchscreen-inverted-x?"; ++ invy = <&ft5406>,"touchscreen-inverted-y?"; ++ swapxy = <&ft5406>,"touchscreen-swapped-x-y?"; ++ }; ++}; |