110 lines
2.2 KiB
Devicetree
110 lines
2.2 KiB
Devicetree
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Surface Laptop 7 (Romulus) MSHW0238 QSPI touchpad overlay.
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*/
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/dts-v1/;
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/plugin/;
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#define IRQ_TYPE_LEVEL_LOW 8
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#define QCOM_GPI_QSPI 4
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/ {
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compatible = "microsoft,romulus13", "microsoft,romulus15", "qcom,x1e80100";
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};
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&gpi_dma2 {
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status = "okay";
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};
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&{/} {
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vreg_ts_5p0: ts-5p0-regulator {
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compatible = "regulator-fixed";
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regulator-name = "vreg_ts_5p0";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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gpio = <&tlmm 65 0>;
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enable-active-high;
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startup-delay-us = <100000>;
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};
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};
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&tlmm {
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qup_qspi19_data_clk: qup-qspi19-data-clk-state {
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pins = "gpio76", "gpio77", "gpio78";
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function = "qup2_se3";
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drive-strength = <6>;
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bias-disable;
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};
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qup_qspi19_cs: qup-qspi19-cs-state {
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pins = "gpio79";
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function = "qup2_se3";
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drive-strength = <6>;
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bias-disable;
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};
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qup_qspi19_data23: qup-qspi19-data23-state {
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pins = "gpio66", "gpio67";
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function = "qup2_se3";
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drive-strength = <6>;
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bias-disable;
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};
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spi19_hid0_reset_deassert: spi19-hid0-reset-deassert-state {
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pins = "gpio65", "gpio120";
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function = "gpio";
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drive-strength = <16>;
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bias-disable;
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output-high;
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};
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spi19_hid0_reset_assert: spi19-hid0-reset-assert-state {
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pins = "gpio65", "gpio120";
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function = "gpio";
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drive-strength = <16>;
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bias-disable;
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output-low;
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};
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spi19_hid0_int_bias: spi19-hid0-int-bias-state {
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pins = "gpio3";
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function = "gpio";
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input-enable;
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bias-pull-up;
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};
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};
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&spi19 {
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status = "okay";
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compatible = "qcom,geni-spi-qspi";
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spi-max-frequency = <20000000>;
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qcom,qspi-read-opcode = <0xEB>;
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qcom,qspi-read-dummy-clocks = <8>;
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qcom,qspi-read-cmd-bytes = <4>;
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pinctrl-0 = <&qup_qspi19_data_clk>, <&qup_qspi19_cs>,
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<&qup_qspi19_data23>,
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<&spi19_hid0_int_bias>;
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pinctrl-names = "default";
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dmas = <&gpi_dma2 0 3 QCOM_GPI_QSPI>,
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<&gpi_dma2 1 3 QCOM_GPI_QSPI>;
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dma-names = "tx", "rx";
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touchpad: touchpad@0 {
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compatible = "hid-over-spi";
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reg = <0>;
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spi-max-frequency = <20000000>;
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interrupt-parent = <&tlmm>;
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interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
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vdd-supply = <&vreg_ts_5p0>;
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pinctrl-0 = <&spi19_hid0_reset_deassert>;
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pinctrl-1 = <&spi19_hid0_reset_assert>;
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pinctrl-names = "active", "reset";
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};
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};
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