Goodix GT911 CTP is bound with Oceanic 5205 5inMFD board. The CTP connected to board with, - SDA, SCK from i2c0 - GPIO-LD0 as AVDD28 supply - PH4 gpio as interrupt pin - PH11 gpio as reset pin - X axis is inverted - Y axis is inverted
Signed-off-by: Jagan Teki <[email protected]> --- Changes for v3: - Use 2.8v for reg_ldo_io0 Changes for v2: - drop i2c1, bias-pull-up .../sun50i-a64-oceanic-5205-5inmfd.dts | 25 +++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts index 6a2154525d1e..f0cd6587f619 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts @@ -37,6 +37,24 @@ status = "okay"; }; +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + status = "okay"; + + touchscreen@5d { + compatible = "goodix,gt911"; + reg = <0x5d>; + AVDD28-supply = <®_ldo_io0>; /* VDD_CTP: GPIO0-LDO */ + interrupt-parent = <&pio>; + interrupts = <7 4 IRQ_TYPE_EDGE_FALLING>; + irq-gpios = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* CTP-INT: PH4 */ + reset-gpios = <&pio 7 11 GPIO_ACTIVE_HIGH>; /* CTP-RST: PH11 */ + touchscreen-inverted-x; + touchscreen-inverted-y; + }; +}; + &mdio { ext_rgmii_phy: ethernet-phy@1 { compatible = "ethernet-phy-ieee802.3-c22"; @@ -52,6 +70,13 @@ regulator-name = "vcc-phy"; }; +®_ldo_io0 { + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + regulator-name = "vdd-ctp"; + status = "okay"; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_pb_pins>; -- 2.18.0.321.gffc6fa0e3
