// SPDX-License-Identifier: GPL-2.0-only
/*
 * Surface Laptop 7 (Romulus) MSHW0238 QSPI touchpad overlay.
 */

/dts-v1/;
/plugin/;

#define IRQ_TYPE_LEVEL_LOW 8
#define QCOM_GPI_QSPI 4

/ {
	compatible = "microsoft,romulus13", "microsoft,romulus15", "qcom,x1e80100";
};

&gpi_dma2 {
	status = "okay";
};

&{/} {
	vreg_ts_5p0: ts-5p0-regulator {
		compatible = "regulator-fixed";
		regulator-name = "vreg_ts_5p0";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		gpio = <&tlmm 65 0>;
		enable-active-high;
		startup-delay-us = <100000>;
	};
};

&tlmm {
	qup_qspi19_data_clk: qup-qspi19-data-clk-state {
		pins = "gpio76", "gpio77", "gpio78";
		function = "qup2_se3";
		drive-strength = <6>;
		bias-disable;
	};

	qup_qspi19_cs: qup-qspi19-cs-state {
		pins = "gpio79";
		function = "qup2_se3";
		drive-strength = <6>;
		bias-disable;
	};

	qup_qspi19_data23: qup-qspi19-data23-state {
		pins = "gpio66", "gpio67";
		function = "qup2_se3";
		drive-strength = <6>;
		bias-disable;
	};

	spi19_hid0_reset_deassert: spi19-hid0-reset-deassert-state {
		pins = "gpio65", "gpio120";
		function = "gpio";
		drive-strength = <16>;
		bias-disable;
		output-high;
	};

	spi19_hid0_reset_assert: spi19-hid0-reset-assert-state {
		pins = "gpio65", "gpio120";
		function = "gpio";
		drive-strength = <16>;
		bias-disable;
		output-low;
	};

	spi19_hid0_int_bias: spi19-hid0-int-bias-state {
		pins = "gpio3";
		function = "gpio";
		input-enable;
		bias-pull-up;
	};
};

&spi19 {
	status = "okay";
	compatible = "qcom,geni-spi-qspi";
	spi-max-frequency = <20000000>;
	qcom,qspi-read-opcode = <0xEB>;
	qcom,qspi-read-dummy-clocks = <8>;
	qcom,qspi-read-cmd-bytes = <4>;

	pinctrl-0 = <&qup_qspi19_data_clk>, <&qup_qspi19_cs>,
		    <&qup_qspi19_data23>,
		    <&spi19_hid0_int_bias>;
	pinctrl-names = "default";

	dmas = <&gpi_dma2 0 3 QCOM_GPI_QSPI>,
	       <&gpi_dma2 1 3 QCOM_GPI_QSPI>;
	dma-names = "tx", "rx";

	touchpad: touchpad@0 {
		compatible = "hid-over-spi";
		reg = <0>;
		spi-max-frequency = <20000000>;

		interrupt-parent = <&tlmm>;
		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;

		vdd-supply = <&vreg_ts_5p0>;

		pinctrl-0 = <&spi19_hid0_reset_deassert>;
		pinctrl-1 = <&spi19_hid0_reset_assert>;
		pinctrl-names = "active", "reset";
	};
};