1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2023-2026, Richard Acayan. All rights reserved. 4 */ 5 6 #include <linux/kernel.h> 7 #include <linux/module.h> 8 #include <linux/of.h> 9 #include <linux/platform_device.h> 10 #include <linux/pinctrl/pinctrl.h> 11 12 #include "pinctrl-lpass-lpi.h" 13 14 enum lpass_lpi_functions { 15 LPI_MUX_comp_rx, 16 LPI_MUX_dmic1_clk, 17 LPI_MUX_dmic1_data, 18 LPI_MUX_dmic2_clk, 19 LPI_MUX_dmic2_data, 20 LPI_MUX_i2s1_clk, 21 LPI_MUX_i2s1_data, 22 LPI_MUX_i2s1_ws, 23 LPI_MUX_lpi_cdc_rst, 24 LPI_MUX_mclk0, 25 LPI_MUX_pdm_rx, 26 LPI_MUX_pdm_sync, 27 LPI_MUX_pdm_tx, 28 LPI_MUX_slimbus_clk, 29 LPI_MUX_gpio, 30 LPI_MUX__, 31 }; 32 33 static const struct pinctrl_pin_desc sdm670_lpi_pinctrl_pins[] = { 34 PINCTRL_PIN(0, "gpio0"), 35 PINCTRL_PIN(1, "gpio1"), 36 PINCTRL_PIN(2, "gpio2"), 37 PINCTRL_PIN(3, "gpio3"), 38 PINCTRL_PIN(4, "gpio4"), 39 PINCTRL_PIN(5, "gpio5"), 40 PINCTRL_PIN(6, "gpio6"), 41 PINCTRL_PIN(7, "gpio7"), 42 PINCTRL_PIN(8, "gpio8"), 43 PINCTRL_PIN(9, "gpio9"), 44 PINCTRL_PIN(10, "gpio10"), 45 PINCTRL_PIN(11, "gpio11"), 46 PINCTRL_PIN(12, "gpio12"), 47 PINCTRL_PIN(13, "gpio13"), 48 PINCTRL_PIN(14, "gpio14"), 49 PINCTRL_PIN(15, "gpio15"), 50 PINCTRL_PIN(16, "gpio16"), 51 PINCTRL_PIN(17, "gpio17"), 52 PINCTRL_PIN(18, "gpio18"), 53 PINCTRL_PIN(19, "gpio19"), 54 PINCTRL_PIN(20, "gpio20"), 55 PINCTRL_PIN(21, "gpio21"), 56 PINCTRL_PIN(22, "gpio22"), 57 PINCTRL_PIN(23, "gpio23"), 58 PINCTRL_PIN(24, "gpio24"), 59 PINCTRL_PIN(25, "gpio25"), 60 PINCTRL_PIN(26, "gpio26"), 61 PINCTRL_PIN(27, "gpio27"), 62 PINCTRL_PIN(28, "gpio28"), 63 PINCTRL_PIN(29, "gpio29"), 64 PINCTRL_PIN(30, "gpio30"), 65 PINCTRL_PIN(31, "gpio31"), 66 }; 67 68 static const char * const comp_rx_groups[] = { "gpio22", "gpio24" }; 69 static const char * const dmic1_clk_groups[] = { "gpio26" }; 70 static const char * const dmic1_data_groups[] = { "gpio27" }; 71 static const char * const dmic2_clk_groups[] = { "gpio28" }; 72 static const char * const dmic2_data_groups[] = { "gpio29" }; 73 static const char * const i2s1_clk_groups[] = { "gpio8" }; 74 static const char * const i2s1_ws_groups[] = { "gpio9" }; 75 static const char * const i2s1_data_groups[] = { "gpio10", "gpio11" }; 76 static const char * const lpi_cdc_rst_groups[] = { "gpio29" }; 77 static const char * const mclk0_groups[] = { "gpio19" }; 78 static const char * const pdm_rx_groups[] = { "gpio21", "gpio23", "gpio25" }; 79 static const char * const pdm_sync_groups[] = { "gpio19" }; 80 static const char * const pdm_tx_groups[] = { "gpio20" }; 81 static const char * const slimbus_clk_groups[] = { "gpio18" }; 82 83 static const struct lpi_pingroup sdm670_lpi_pinctrl_groups[] = { 84 LPI_PINGROUP(0, LPI_NO_SLEW, _, _, _, _), 85 LPI_PINGROUP(1, LPI_NO_SLEW, _, _, _, _), 86 LPI_PINGROUP(2, LPI_NO_SLEW, _, _, _, _), 87 LPI_PINGROUP(3, LPI_NO_SLEW, _, _, _, _), 88 LPI_PINGROUP(4, LPI_NO_SLEW, _, _, _, _), 89 LPI_PINGROUP(5, LPI_NO_SLEW, _, _, _, _), 90 LPI_PINGROUP(6, LPI_NO_SLEW, _, _, _, _), 91 LPI_PINGROUP(7, LPI_NO_SLEW, _, _, _, _), 92 LPI_PINGROUP(8, LPI_NO_SLEW, _, _, i2s1_clk, _), 93 LPI_PINGROUP(9, LPI_NO_SLEW, _, _, i2s1_ws, _), 94 LPI_PINGROUP(10, LPI_NO_SLEW, _, _, _, i2s1_data), 95 LPI_PINGROUP(11, LPI_NO_SLEW, _, i2s1_data, _, _), 96 LPI_PINGROUP(12, LPI_NO_SLEW, _, _, _, _), 97 LPI_PINGROUP(13, LPI_NO_SLEW, _, _, _, _), 98 LPI_PINGROUP(14, LPI_NO_SLEW, _, _, _, _), 99 LPI_PINGROUP(15, LPI_NO_SLEW, _, _, _, _), 100 LPI_PINGROUP(16, LPI_NO_SLEW, _, _, _, _), 101 LPI_PINGROUP(17, LPI_NO_SLEW, _, _, _, _), 102 LPI_PINGROUP(18, LPI_NO_SLEW, _, slimbus_clk, _, _), 103 LPI_PINGROUP(19, LPI_NO_SLEW, mclk0, _, pdm_sync, _), 104 LPI_PINGROUP(20, LPI_NO_SLEW, _, pdm_tx, _, _), 105 LPI_PINGROUP(21, LPI_NO_SLEW, _, pdm_rx, _, _), 106 LPI_PINGROUP(22, LPI_NO_SLEW, _, comp_rx, _, _), 107 LPI_PINGROUP(23, LPI_NO_SLEW, pdm_rx, _, _, _), 108 LPI_PINGROUP(24, LPI_NO_SLEW, comp_rx, _, _, _), 109 LPI_PINGROUP(25, LPI_NO_SLEW, pdm_rx, _, _, _), 110 LPI_PINGROUP(26, LPI_NO_SLEW, dmic1_clk, _, _, _), 111 LPI_PINGROUP(27, LPI_NO_SLEW, dmic1_data, _, _, _), 112 LPI_PINGROUP(28, LPI_NO_SLEW, dmic2_clk, _, _, _), 113 LPI_PINGROUP(29, LPI_NO_SLEW, dmic2_data, lpi_cdc_rst, _, _), 114 LPI_PINGROUP(30, LPI_NO_SLEW, _, _, _, _), 115 LPI_PINGROUP(31, LPI_NO_SLEW, _, _, _, _), 116 }; 117 118 static const struct lpi_function sdm670_lpi_pinctrl_functions[] = { 119 LPI_FUNCTION(comp_rx), 120 LPI_FUNCTION(dmic1_clk), 121 LPI_FUNCTION(dmic1_data), 122 LPI_FUNCTION(dmic2_clk), 123 LPI_FUNCTION(dmic2_data), 124 LPI_FUNCTION(i2s1_clk), 125 LPI_FUNCTION(i2s1_data), 126 LPI_FUNCTION(i2s1_ws), 127 LPI_FUNCTION(lpi_cdc_rst), 128 LPI_FUNCTION(mclk0), 129 LPI_FUNCTION(pdm_tx), 130 LPI_FUNCTION(pdm_rx), 131 LPI_FUNCTION(pdm_sync), 132 LPI_FUNCTION(slimbus_clk), 133 }; 134 135 static const struct lpi_pinctrl_variant_data sdm670_lpi_pinctrl_data = { 136 .pins = sdm670_lpi_pinctrl_pins, 137 .npins = ARRAY_SIZE(sdm670_lpi_pinctrl_pins), 138 .groups = sdm670_lpi_pinctrl_groups, 139 .ngroups = ARRAY_SIZE(sdm670_lpi_pinctrl_groups), 140 .functions = sdm670_lpi_pinctrl_functions, 141 .nfunctions = ARRAY_SIZE(sdm670_lpi_pinctrl_functions), 142 .flags = LPI_FLAG_SLEW_RATE_SAME_REG, 143 }; 144 145 static const struct of_device_id sdm670_lpi_pinctrl_of_match[] = { 146 { 147 .compatible = "qcom,sdm670-lpass-lpi-pinctrl", 148 .data = &sdm670_lpi_pinctrl_data, 149 }, 150 { } 151 }; 152 MODULE_DEVICE_TABLE(of, sdm670_lpi_pinctrl_of_match); 153 154 static struct platform_driver sdm670_lpi_pinctrl_driver = { 155 .driver = { 156 .name = "qcom-sdm670-lpass-lpi-pinctrl", 157 .of_match_table = sdm670_lpi_pinctrl_of_match, 158 }, 159 .probe = lpi_pinctrl_probe, 160 .remove = lpi_pinctrl_remove, 161 }; 162 module_platform_driver(sdm670_lpi_pinctrl_driver); 163 164 MODULE_AUTHOR("Richard Acayan <mailingradian@gmail.com>"); 165 MODULE_DESCRIPTION("QTI SDM670 LPI GPIO pin control driver"); 166 MODULE_LICENSE("GPL"); 167