1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2022-2023 Linaro Ltd. 4 * Copyright (c) 2026 Luca Weiss <luca.weiss@fairphone.com> 5 */ 6 7 #include <linux/gpio/driver.h> 8 #include <linux/module.h> 9 #include <linux/platform_device.h> 10 11 #include "pinctrl-lpass-lpi.h" 12 13 enum lpass_lpi_functions { 14 LPI_MUX_dmic1_clk, 15 LPI_MUX_dmic1_data, 16 LPI_MUX_dmic2_clk, 17 LPI_MUX_dmic2_data, 18 LPI_MUX_dmic3_clk, 19 LPI_MUX_dmic3_data, 20 LPI_MUX_dmic4_clk, 21 LPI_MUX_dmic4_data, 22 LPI_MUX_i2s0_clk, 23 LPI_MUX_i2s0_data, 24 LPI_MUX_i2s0_ws, 25 LPI_MUX_i2s1_clk, 26 LPI_MUX_i2s1_data, 27 LPI_MUX_i2s1_ws, 28 LPI_MUX_i2s2_clk, 29 LPI_MUX_i2s2_data, 30 LPI_MUX_i2s2_ws, 31 LPI_MUX_i2s3_clk, 32 LPI_MUX_i2s3_data, 33 LPI_MUX_i2s3_ws, 34 LPI_MUX_qca_swr_clk, 35 LPI_MUX_qca_swr_data, 36 LPI_MUX_slimbus_clk, 37 LPI_MUX_slimbus_data, 38 LPI_MUX_swr_rx_clk, 39 LPI_MUX_swr_rx_data, 40 LPI_MUX_swr_tx_clk, 41 LPI_MUX_swr_tx_data, 42 LPI_MUX_wsa_swr_clk, 43 LPI_MUX_wsa_swr_data, 44 LPI_MUX_ext_mclk1_a, 45 LPI_MUX_ext_mclk1_b, 46 LPI_MUX_ext_mclk1_c, 47 LPI_MUX_ext_mclk1_d, 48 LPI_MUX_ext_mclk1_e, 49 LPI_MUX_gpio, 50 LPI_MUX__, 51 }; 52 53 static const struct pinctrl_pin_desc milos_lpi_pins[] = { 54 PINCTRL_PIN(0, "gpio0"), 55 PINCTRL_PIN(1, "gpio1"), 56 PINCTRL_PIN(2, "gpio2"), 57 PINCTRL_PIN(3, "gpio3"), 58 PINCTRL_PIN(4, "gpio4"), 59 PINCTRL_PIN(5, "gpio5"), 60 PINCTRL_PIN(6, "gpio6"), 61 PINCTRL_PIN(7, "gpio7"), 62 PINCTRL_PIN(8, "gpio8"), 63 PINCTRL_PIN(9, "gpio9"), 64 PINCTRL_PIN(10, "gpio10"), 65 PINCTRL_PIN(11, "gpio11"), 66 PINCTRL_PIN(12, "gpio12"), 67 PINCTRL_PIN(13, "gpio13"), 68 PINCTRL_PIN(14, "gpio14"), 69 PINCTRL_PIN(15, "gpio15"), 70 PINCTRL_PIN(16, "gpio16"), 71 PINCTRL_PIN(17, "gpio17"), 72 PINCTRL_PIN(18, "gpio18"), 73 PINCTRL_PIN(19, "gpio19"), 74 PINCTRL_PIN(20, "gpio20"), 75 PINCTRL_PIN(21, "gpio21"), 76 PINCTRL_PIN(22, "gpio22"), 77 }; 78 79 static const char * const gpio_groups[] = { 80 "gpio0", "gpio1", "gpio2", "gpio3", "gpio4", "gpio5", "gpio6", "gpio7", 81 "gpio8", "gpio9", "gpio10", "gpio11", "gpio12", "gpio13", "gpio14", 82 "gpio15", "gpio16", "gpio17", "gpio18", "gpio19", "gpio20", "gpio21", 83 "gpio22", 84 }; 85 86 static const char * const dmic1_clk_groups[] = { "gpio6" }; 87 static const char * const dmic1_data_groups[] = { "gpio7" }; 88 static const char * const dmic2_clk_groups[] = { "gpio8" }; 89 static const char * const dmic2_data_groups[] = { "gpio9" }; 90 static const char * const dmic3_clk_groups[] = { "gpio12" }; 91 static const char * const dmic3_data_groups[] = { "gpio13" }; 92 static const char * const dmic4_clk_groups[] = { "gpio21" }; 93 static const char * const dmic4_data_groups[] = { "gpio22" }; 94 static const char * const i2s0_clk_groups[] = { "gpio0" }; 95 static const char * const i2s0_ws_groups[] = { "gpio1" }; 96 static const char * const i2s0_data_groups[] = { "gpio2", "gpio3", "gpio4", "gpio5" }; 97 static const char * const i2s1_clk_groups[] = { "gpio6" }; 98 static const char * const i2s1_ws_groups[] = { "gpio7" }; 99 static const char * const i2s1_data_groups[] = { "gpio8", "gpio9" }; 100 static const char * const i2s2_clk_groups[] = { "gpio10" }; 101 static const char * const i2s2_ws_groups[] = { "gpio11" }; 102 static const char * const i2s2_data_groups[] = { "gpio12", "gpio13" }; 103 static const char * const i2s3_clk_groups[] = { "gpio19" }; 104 static const char * const i2s3_ws_groups[] = { "gpio20" }; 105 static const char * const i2s3_data_groups[] = { "gpio21", "gpio22" }; 106 static const char * const qca_swr_clk_groups[] = { "gpio19" }; 107 static const char * const qca_swr_data_groups[] = { "gpio20" }; 108 static const char * const slimbus_clk_groups[] = { "gpio19" }; 109 static const char * const slimbus_data_groups[] = { "gpio20" }; 110 static const char * const swr_rx_clk_groups[] = { "gpio3" }; 111 static const char * const swr_rx_data_groups[] = { "gpio4", "gpio5" }; 112 static const char * const swr_tx_clk_groups[] = { "gpio0" }; 113 static const char * const swr_tx_data_groups[] = { "gpio1", "gpio2", "gpio14" }; 114 static const char * const wsa_swr_clk_groups[] = { "gpio10" }; 115 static const char * const wsa_swr_data_groups[] = { "gpio11" }; 116 static const char * const ext_mclk1_a_groups[] = { "gpio13" }; 117 static const char * const ext_mclk1_b_groups[] = { "gpio9" }; 118 static const char * const ext_mclk1_c_groups[] = { "gpio5" }; 119 static const char * const ext_mclk1_d_groups[] = { "gpio14" }; 120 static const char * const ext_mclk1_e_groups[] = { "gpio22" }; 121 122 static const struct lpi_pingroup milos_groups[] = { 123 LPI_PINGROUP(0, 0, swr_tx_clk, i2s0_clk, _, _), 124 LPI_PINGROUP(1, 2, swr_tx_data, i2s0_ws, _, _), 125 LPI_PINGROUP(2, 4, swr_tx_data, i2s0_data, _, _), 126 LPI_PINGROUP(3, 8, swr_rx_clk, i2s0_data, _, _), 127 LPI_PINGROUP(4, 10, swr_rx_data, i2s0_data, _, _), 128 LPI_PINGROUP(5, 12, swr_rx_data, ext_mclk1_c, i2s0_data, _), 129 LPI_PINGROUP(6, LPI_NO_SLEW, dmic1_clk, i2s1_clk, _, _), 130 LPI_PINGROUP(7, LPI_NO_SLEW, dmic1_data, i2s1_ws, _, _), 131 LPI_PINGROUP(8, LPI_NO_SLEW, dmic2_clk, i2s1_data, _, _), 132 LPI_PINGROUP(9, LPI_NO_SLEW, dmic2_data, i2s1_data, ext_mclk1_b, _), 133 LPI_PINGROUP(10, 16, wsa_swr_clk, i2s2_clk, _, _), 134 LPI_PINGROUP(11, 18, wsa_swr_data, i2s2_ws, _, _), 135 LPI_PINGROUP(12, LPI_NO_SLEW, dmic3_clk, i2s2_data, _, _), 136 LPI_PINGROUP(13, LPI_NO_SLEW, dmic3_data, i2s2_data, ext_mclk1_a, _), 137 LPI_PINGROUP(14, 6, swr_tx_data, ext_mclk1_d, _, _), 138 /* gpio15 - gpio18 do not really exist */ 139 LPI_PINGROUP(15, 20, _, _, _, _), 140 LPI_PINGROUP(16, 22, _, _, _, _), 141 LPI_PINGROUP(17, LPI_NO_SLEW, _, _, _, _), 142 LPI_PINGROUP(18, LPI_NO_SLEW, _, _, _, _), 143 LPI_PINGROUP(19, LPI_NO_SLEW, i2s3_clk, slimbus_clk, qca_swr_clk, _), 144 LPI_PINGROUP(20, LPI_NO_SLEW, i2s3_ws, slimbus_data, qca_swr_data, _), 145 LPI_PINGROUP(21, LPI_NO_SLEW, i2s3_data, dmic4_clk, _, _), 146 LPI_PINGROUP(22, LPI_NO_SLEW, i2s3_data, dmic4_data, ext_mclk1_e, _), 147 }; 148 149 static const struct lpi_function milos_functions[] = { 150 LPI_FUNCTION(gpio), 151 LPI_FUNCTION(dmic1_clk), 152 LPI_FUNCTION(dmic1_data), 153 LPI_FUNCTION(dmic2_clk), 154 LPI_FUNCTION(dmic2_data), 155 LPI_FUNCTION(dmic3_clk), 156 LPI_FUNCTION(dmic3_data), 157 LPI_FUNCTION(dmic4_clk), 158 LPI_FUNCTION(dmic4_data), 159 LPI_FUNCTION(i2s0_clk), 160 LPI_FUNCTION(i2s0_data), 161 LPI_FUNCTION(i2s0_ws), 162 LPI_FUNCTION(i2s1_clk), 163 LPI_FUNCTION(i2s1_data), 164 LPI_FUNCTION(i2s1_ws), 165 LPI_FUNCTION(i2s2_clk), 166 LPI_FUNCTION(i2s2_data), 167 LPI_FUNCTION(i2s2_ws), 168 LPI_FUNCTION(i2s3_clk), 169 LPI_FUNCTION(i2s3_data), 170 LPI_FUNCTION(i2s3_ws), 171 LPI_FUNCTION(qca_swr_clk), 172 LPI_FUNCTION(qca_swr_data), 173 LPI_FUNCTION(slimbus_clk), 174 LPI_FUNCTION(slimbus_data), 175 LPI_FUNCTION(swr_rx_clk), 176 LPI_FUNCTION(swr_rx_data), 177 LPI_FUNCTION(swr_tx_clk), 178 LPI_FUNCTION(swr_tx_data), 179 LPI_FUNCTION(wsa_swr_clk), 180 LPI_FUNCTION(wsa_swr_data), 181 LPI_FUNCTION(ext_mclk1_a), 182 LPI_FUNCTION(ext_mclk1_b), 183 LPI_FUNCTION(ext_mclk1_c), 184 LPI_FUNCTION(ext_mclk1_d), 185 LPI_FUNCTION(ext_mclk1_e), 186 }; 187 188 static const struct lpi_pinctrl_variant_data milos_lpi_data = { 189 .pins = milos_lpi_pins, 190 .npins = ARRAY_SIZE(milos_lpi_pins), 191 .groups = milos_groups, 192 .ngroups = ARRAY_SIZE(milos_groups), 193 .functions = milos_functions, 194 .nfunctions = ARRAY_SIZE(milos_functions), 195 }; 196 197 static const struct of_device_id lpi_pinctrl_of_match[] = { 198 { 199 .compatible = "qcom,milos-lpass-lpi-pinctrl", 200 .data = &milos_lpi_data, 201 }, 202 { } 203 }; 204 MODULE_DEVICE_TABLE(of, lpi_pinctrl_of_match); 205 206 static struct platform_driver lpi_pinctrl_driver = { 207 .driver = { 208 .name = "qcom-milos-lpass-lpi-pinctrl", 209 .of_match_table = lpi_pinctrl_of_match, 210 }, 211 .probe = lpi_pinctrl_probe, 212 .remove = lpi_pinctrl_remove, 213 }; 214 215 module_platform_driver(lpi_pinctrl_driver); 216 MODULE_DESCRIPTION("Qualcomm Milos LPI GPIO pin control driver"); 217 MODULE_LICENSE("GPL"); 218