From: Jasper Korten <jja2000@xxxxxxxxx> The Google Pixel C contains a RMI4 HID over I2C touchscreen. Add a DT node for the touchscreen. Information gathered from downstream tree. Link: https://android.googlesource.com/kernel/tegra/+/refs/heads/android-tegra-dragon-3.18-oreo-m8/arch/arm64/boot/dts/tegra/tegra210-smaug.dtsi#542 Signed-off-by: Jasper Korten <jja2000@xxxxxxxxx> --- arch/arm64/boot/dts/nvidia/tegra210-smaug.dts | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts index 2e5b6b2c1f56..6f77540fd397 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts +++ b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts @@ -1362,6 +1362,19 @@ bluetooth { }; }; + i2c@7000c000 { + status = "okay"; + clock-frequency = <1000000>; + + touchscreen: i2c-hid-dev@20 { + compatible = "hid-over-i2c"; + reg = <0x20>; + hid-descr-addr = <0x0020>; + interrupt-parent = <&gpio>; + interrupts = <TEGRA_GPIO(X, 1) IRQ_TYPE_EDGE_FALLING>; + }; + }; + i2c@7000c400 { status = "okay"; clock-frequency = <1000000>; -- 2.46.0
