Commit 10d4a706 authored by AngeloGioacchino Del Regno's avatar AngeloGioacchino Del Regno Committed by Matthias Brugger
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arm64: dts: mediatek: cherry: Add I2C-HID touchscreen on I2C4 



This platform carries a HID compatible I2C touchscreen on the i2c4 bus,
but it may be at a different address, depending on the board model.
Add the node for a touchscreen at 0x10, but enable it only in the
final board dts.

Signed-off-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220704101321.44835-12-angelogioacchino.delregno@collabora.com


Signed-off-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
parent c34bc660

arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r1.dts

+4 −0
Original line number Diff line number Diff line
@@ -9,3 +9,7 @@ / { 
	model = "Acer Tomato (rev1) board";

	compatible = "google,tomato-rev1", "google,tomato", "mediatek,mt8195";

};



&ts_10 {

	status = "okay";

};

arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r2.dts

+4 −0
Original line number Diff line number Diff line
@@ -29,3 +29,7 @@ pins-low-power-pcie0-disable { 
		bias-pull-down;

	};

};



&ts_10 {

	status = "okay";

};

arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r3.dts

+4 −0
Original line number Diff line number Diff line
@@ -30,3 +30,7 @@ pins-low-power-pcie0-disable { 
		bias-pull-down;

	};

};



&ts_10 {

	status = "okay";

};

arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi

+28 −0
Original line number Diff line number Diff line
@@ -145,6 +145,18 @@ &i2c4 { 
	clock-frequency = <400000>;

	pinctrl-names = "default";

	pinctrl-0 = <&i2c4_pins>;



	ts_10: touchscreen@10 {

		compatible = "hid-over-i2c";

		reg = <0x10>;

		hid-descr-addr = <0x0001>;

		interrupts-extended = <&pio 92 IRQ_TYPE_LEVEL_LOW>;

		pinctrl-names = "default";

		pinctrl-0 = <&touchscreen_pins>;

		post-power-on-delay-ms = <10>;

		vdd-supply = <&pp3300_s3>;

		status = "disabled";

	};

};



&i2c5 {
@@ -609,6 +621,22 @@ subpmic_pin_irq: pins-subpmic-int-n { 
			bias-pull-up;

		};

	};



	touchscreen_pins: touchscreen-default-pins {

		pins-int-n {

			pinmux = <PINMUX_GPIO92__FUNC_GPIO92>;

			input-enable;

			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;

		};

		pins-rst {

			pinmux = <PINMUX_GPIO56__FUNC_GPIO56>;

			output-high;

		};

		pins-report-sw {

			pinmux = <PINMUX_GPIO57__FUNC_GPIO57>;

			output-low;

		};

	};

};



&pmic {