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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2026, Luca Weiss <luca.weiss@fairphone.com>
*/
#include <linux/gpio/driver.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_clock.h>
#include <linux/pm_runtime.h>
#include "pinctrl-lpass-lpi.h"
enum lpass_lpi_functions {
LPI_MUX_dmic1_clk,
LPI_MUX_dmic1_data,
LPI_MUX_dmic2_clk,
LPI_MUX_dmic2_data,
LPI_MUX_dmic3_clk,
LPI_MUX_dmic3_data,
LPI_MUX_i2s1_clk,
LPI_MUX_i2s1_data,
LPI_MUX_i2s1_ws,
LPI_MUX_i2s2_clk,
LPI_MUX_i2s2_data,
LPI_MUX_i2s2_ws,
LPI_MUX_qua_mi2s_data,
LPI_MUX_qua_mi2s_sclk,
LPI_MUX_qua_mi2s_ws,
LPI_MUX_swr_rx_clk,
LPI_MUX_swr_rx_data,
LPI_MUX_swr_tx_clk,
LPI_MUX_swr_tx_data,
LPI_MUX_wsa_swr_clk,
LPI_MUX_wsa_swr_data,
LPI_MUX_gpio,
LPI_MUX__,
};
static const struct pinctrl_pin_desc sm6350_lpi_pins[] = {
PINCTRL_PIN(0, "gpio0"),
PINCTRL_PIN(1, "gpio1"),
PINCTRL_PIN(2, "gpio2"),
PINCTRL_PIN(3, "gpio3"),
PINCTRL_PIN(4, "gpio4"),
PINCTRL_PIN(5, "gpio5"),
PINCTRL_PIN(6, "gpio6"),
PINCTRL_PIN(7, "gpio7"),
PINCTRL_PIN(8, "gpio8"),
PINCTRL_PIN(9, "gpio9"),
PINCTRL_PIN(10, "gpio10"),
PINCTRL_PIN(11, "gpio11"),
PINCTRL_PIN(12, "gpio12"),
PINCTRL_PIN(13, "gpio13"),
PINCTRL_PIN(14, "gpio14"),
};
static const char * const swr_tx_clk_groups[] = { "gpio0" };
static const char * const swr_tx_data_groups[] = { "gpio1", "gpio2", "gpio14" };
static const char * const swr_rx_clk_groups[] = { "gpio3" };
static const char * const swr_rx_data_groups[] = { "gpio4", "gpio5" };
static const char * const dmic1_clk_groups[] = { "gpio6" };
static const char * const dmic1_data_groups[] = { "gpio7" };
static const char * const dmic2_clk_groups[] = { "gpio8" };
static const char * const dmic2_data_groups[] = { "gpio9" };
static const char * const i2s2_clk_groups[] = { "gpio10" };
static const char * const i2s2_ws_groups[] = { "gpio11" };
static const char * const dmic3_clk_groups[] = { "gpio12" };
static const char * const dmic3_data_groups[] = { "gpio13" };
static const char * const qua_mi2s_sclk_groups[] = { "gpio0" };
static const char * const qua_mi2s_ws_groups[] = { "gpio1" };
static const char * const qua_mi2s_data_groups[] = { "gpio2", "gpio3", "gpio4", "gpio5" };
static const char * const i2s1_clk_groups[] = { "gpio6" };
static const char * const i2s1_ws_groups[] = { "gpio7" };
static const char * const i2s1_data_groups[] = { "gpio8", "gpio9" };
static const char * const wsa_swr_clk_groups[] = { "gpio10" };
static const char * const wsa_swr_data_groups[] = { "gpio11" };
static const char * const i2s2_data_groups[] = { "gpio12", "gpio13" };
static const struct lpi_pingroup sm6350_groups[] = {
LPI_PINGROUP(0, 0, swr_tx_clk, qua_mi2s_sclk, _, _),
LPI_PINGROUP(1, 2, swr_tx_data, qua_mi2s_ws, _, _),
LPI_PINGROUP(2, 4, swr_tx_data, qua_mi2s_data, _, _),
LPI_PINGROUP(3, 8, swr_rx_clk, qua_mi2s_data, _, _),
LPI_PINGROUP(4, 10, swr_rx_data, qua_mi2s_data, _, _),
LPI_PINGROUP(5, 12, swr_rx_data, _, qua_mi2s_data, _),
LPI_PINGROUP(6, LPI_NO_SLEW, dmic1_clk, i2s1_clk, _, _),
LPI_PINGROUP(7, LPI_NO_SLEW, dmic1_data, i2s1_ws, _, _),
LPI_PINGROUP(8, LPI_NO_SLEW, dmic2_clk, i2s1_data, _, _),
LPI_PINGROUP(9, LPI_NO_SLEW, dmic2_data, i2s1_data, _, _),
LPI_PINGROUP(10, 16, i2s2_clk, wsa_swr_clk, _, _),
LPI_PINGROUP(11, 18, i2s2_ws, wsa_swr_data, _, _),
LPI_PINGROUP(12, LPI_NO_SLEW, dmic3_clk, i2s2_data, _, _),
LPI_PINGROUP(13, LPI_NO_SLEW, dmic3_data, i2s2_data, _, _),
LPI_PINGROUP_SLEW_SPARE_1(14, 0, swr_tx_data, _, _, _),
};
static const struct lpi_function sm6350_functions[] = {
LPI_FUNCTION(dmic1_clk),
LPI_FUNCTION(dmic1_data),
LPI_FUNCTION(dmic2_clk),
LPI_FUNCTION(dmic2_data),
LPI_FUNCTION(dmic3_clk),
LPI_FUNCTION(dmic3_data),
LPI_FUNCTION(i2s1_clk),
LPI_FUNCTION(i2s1_data),
LPI_FUNCTION(i2s1_ws),
LPI_FUNCTION(i2s2_clk),
LPI_FUNCTION(i2s2_data),
LPI_FUNCTION(i2s2_ws),
LPI_FUNCTION(qua_mi2s_data),
LPI_FUNCTION(qua_mi2s_sclk),
LPI_FUNCTION(qua_mi2s_ws),
LPI_FUNCTION(swr_rx_clk),
LPI_FUNCTION(swr_rx_data),
LPI_FUNCTION(swr_tx_clk),
LPI_FUNCTION(swr_tx_data),
LPI_FUNCTION(wsa_swr_clk),
LPI_FUNCTION(wsa_swr_data),
};
static const struct lpi_pinctrl_variant_data sm6350_lpi_data = {
.pins = sm6350_lpi_pins,
.npins = ARRAY_SIZE(sm6350_lpi_pins),
.groups = sm6350_groups,
.ngroups = ARRAY_SIZE(sm6350_groups),
.functions = sm6350_functions,
.nfunctions = ARRAY_SIZE(sm6350_functions),
};
static const struct of_device_id lpi_pinctrl_of_match[] = {
{
.compatible = "qcom,sm6350-lpass-lpi-pinctrl",
.data = &sm6350_lpi_data,
},
{ }
};
MODULE_DEVICE_TABLE(of, lpi_pinctrl_of_match);
static const struct dev_pm_ops lpi_pinctrl_pm_ops = {
RUNTIME_PM_OPS(pm_clk_suspend, pm_clk_resume, NULL)
};
static struct platform_driver lpi_pinctrl_driver = {
.driver = {
.name = "qcom-sm6350-lpass-lpi-pinctrl",
.of_match_table = lpi_pinctrl_of_match,
.pm = pm_ptr(&lpi_pinctrl_pm_ops),
},
.probe = lpi_pinctrl_probe,
.remove = lpi_pinctrl_remove,
};
module_platform_driver(lpi_pinctrl_driver);
MODULE_DESCRIPTION("Qualcomm SM6350 LPI GPIO pin control driver");
MODULE_LICENSE("GPL");
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