diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0164-overlays-Add-EETI-EXC3000-overlay.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0164-overlays-Add-EETI-EXC3000-overlay.patch | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0164-overlays-Add-EETI-EXC3000-overlay.patch b/target/linux/brcm2708/patches-4.14/950-0164-overlays-Add-EETI-EXC3000-overlay.patch new file mode 100644 index 0000000000..9db3667b12 --- /dev/null +++ b/target/linux/brcm2708/patches-4.14/950-0164-overlays-Add-EETI-EXC3000-overlay.patch @@ -0,0 +1,98 @@ +From e141a75b9cc36a09eb8bda90b530d97a9bb1f21e Mon Sep 17 00:00:00 2001 +From: Ahmet Inan <inan@aicodix.de> +Date: Fri, 1 Sep 2017 15:18:01 +0200 +Subject: [PATCH 164/454] overlays: Add EETI EXC3000 overlay + +Add support for I2C connected EETI EXC3000 multiple touch controller +using GPIO 4 (pin 7 on GPIO header) for interrupt. + +Signed-off-by: Ahmet Inan <inan@aicodix.de> +--- + arch/arm/boot/dts/overlays/Makefile | 1 + + arch/arm/boot/dts/overlays/README | 12 +++++ + .../arm/boot/dts/overlays/exc3000-overlay.dts | 48 +++++++++++++++++++ + 3 files changed, 61 insertions(+) + create mode 100644 arch/arm/boot/dts/overlays/exc3000-overlay.dts + +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -26,6 +26,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ + dwc2.dtbo \ + enc28j60.dtbo \ + enc28j60-spi2.dtbo \ ++ exc3000.dtbo \ + fe-pi-audio.dtbo \ + goodix.dtbo \ + googlevoicehat-soundcard.dtbo \ +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -468,6 +468,18 @@ Params: int_pin GPIO use + speed SPI bus speed (default 12000000) + + ++Name: exc3000 ++Info: Enables I2C connected EETI EXC3000 multiple touch controller using ++ GPIO 4 (pin 7 on GPIO header) for interrupt. ++Load: dtoverlay=exc3000,<param>=<val> ++Params: interrupt GPIO used for interrupt (default 4) ++ sizex Touchscreen size x (default 4096) ++ sizey Touchscreen size y (default 4096) ++ invx Touchscreen inverted x axis ++ invy Touchscreen inverted y axis ++ swapxy Touchscreen swapped x y axis ++ ++ + Name: fe-pi-audio + Info: Configures the Fe-Pi Audio Sound Card + Load: dtoverlay=fe-pi-audio +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/exc3000-overlay.dts +@@ -0,0 +1,48 @@ ++// Device tree overlay for I2C connected EETI EXC3000 multiple touch controller ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "brcm,bcm2708"; ++ ++ fragment@0 { ++ target = <&gpio>; ++ __overlay__ { ++ exc3000_pins: exc3000_pins { ++ brcm,pins = <4>; // interrupt ++ brcm,function = <0>; // in ++ brcm,pull = <2>; // pull-up ++ }; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&i2c1>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ status = "okay"; ++ ++ exc3000: exc3000@2a { ++ compatible = "eeti,exc3000"; ++ reg = <0x2a>; ++ pinctrl-names = "default"; ++ pinctrl-0 = <&exc3000_pins>; ++ interrupt-parent = <&gpio>; ++ interrupts = <4 8>; // active low level-sensitive ++ touchscreen-size-x = <4096>; ++ touchscreen-size-y = <4096>; ++ }; ++ }; ++ }; ++ ++ __overrides__ { ++ interrupt = <&exc3000_pins>,"brcm,pins:0", ++ <&exc3000>,"interrupts:0"; ++ sizex = <&exc3000>,"touchscreen-size-x:0"; ++ sizey = <&exc3000>,"touchscreen-size-y:0"; ++ invx = <&exc3000>,"touchscreen-inverted-x?"; ++ invy = <&exc3000>,"touchscreen-inverted-y?"; ++ swapxy = <&exc3000>,"touchscreen-swapped-x-y?"; ++ }; ++}; |