From: Jonathan Marek <jonathan@xxxxxxxx> Add support for the Synaptics RMI4 touchscreen that is found on the Nexus 5. Signed-off-by: Jonathan Marek <jonathan@xxxxxxxx> Signed-off-by: Brian Masney <masneyb@xxxxxxxxxxxxx> --- This is to be applied on top of the display patch series: https://lore.kernel.org/lkml/20190531094619.31704-1-masneyb@xxxxxxxxxxxxx/ .../qcom-msm8974-lge-nexus5-hammerhead.dts | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) diff --git a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts index c92ea01e3918..06c33bd71620 100644 --- a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts +++ b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts @@ -280,6 +280,16 @@ }; }; + i2c2_pins: i2c2 { + mux { + pins = "gpio6", "gpio7"; + function = "blsp_i2c2"; + + drive-strength = <2>; + bias-disable; + }; + }; + i2c3_pins: i2c3 { mux { pins = "gpio10", "gpio11"; @@ -326,6 +336,25 @@ bias-disable; }; }; + + touch_pin: touch { + int { + pins = "gpio5"; + function = "gpio"; + + drive-strength = <2>; + bias-disable; + input-enable; + }; + + reset { + pins = "gpio8"; + function = "gpio"; + + drive-strength = <2>; + bias-pull-up; + }; + }; }; sdhci@f9824900 { @@ -468,6 +497,41 @@ }; }; + i2c@f9924000 { + status = "ok"; + + clock-frequency = <355000>; + qcom,src-freq = <50000000>; + + pinctrl-names = "default"; + pinctrl-0 = <&i2c2_pins>; + + synaptics@70 { + compatible = "syna,rmi4-i2c"; + reg = <0x70>; + + interrupts-extended = <&msmgpio 5 IRQ_TYPE_EDGE_FALLING>; + vdd-supply = <&pm8941_l22>; + vio-supply = <&pm8941_lvs3>; + + pinctrl-names = "default"; + pinctrl-0 = <&touch_pin>; + + #address-cells = <1>; + #size-cells = <0>; + + rmi4-f01@1 { + reg = <0x1>; + syna,nosleep-mode = <1>; + }; + + rmi4-f12@12 { + reg = <0x12>; + syna,sensor-type = <1>; + }; + }; + }; + i2c@f9925000 { status = "ok"; pinctrl-names = "default"; -- 2.20.1
