1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved. 4 * ALSA SoC platform-machine driver for QTi LPASS 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_i2s1_clk, 21 LPI_MUX_i2s1_data, 22 LPI_MUX_i2s1_ws, 23 LPI_MUX_i2s2_clk, 24 LPI_MUX_i2s2_data, 25 LPI_MUX_i2s2_ws, 26 LPI_MUX_qua_mi2s_data, 27 LPI_MUX_qua_mi2s_sclk, 28 LPI_MUX_qua_mi2s_ws, 29 LPI_MUX_swr_rx_clk, 30 LPI_MUX_swr_rx_data, 31 LPI_MUX_swr_tx_clk, 32 LPI_MUX_swr_tx_data, 33 LPI_MUX_wsa_swr_clk, 34 LPI_MUX_wsa_swr_data, 35 LPI_MUX_gpio, 36 LPI_MUX__, 37 }; 38 39 static int gpio0_pins[] = { 0 }; 40 static int gpio1_pins[] = { 1 }; 41 static int gpio2_pins[] = { 2 }; 42 static int gpio3_pins[] = { 3 }; 43 static int gpio4_pins[] = { 4 }; 44 static int gpio5_pins[] = { 5 }; 45 static int gpio6_pins[] = { 6 }; 46 static int gpio7_pins[] = { 7 }; 47 static int gpio8_pins[] = { 8 }; 48 static int gpio9_pins[] = { 9 }; 49 static int gpio10_pins[] = { 10 }; 50 static int gpio11_pins[] = { 11 }; 51 static int gpio12_pins[] = { 12 }; 52 static int gpio13_pins[] = { 13 }; 53 static int gpio14_pins[] = { 14 }; 54 55 static const struct pinctrl_pin_desc sc7280_lpi_pins[] = { 56 PINCTRL_PIN(0, "gpio0"), 57 PINCTRL_PIN(1, "gpio1"), 58 PINCTRL_PIN(2, "gpio2"), 59 PINCTRL_PIN(3, "gpio3"), 60 PINCTRL_PIN(4, "gpio4"), 61 PINCTRL_PIN(5, "gpio5"), 62 PINCTRL_PIN(6, "gpio6"), 63 PINCTRL_PIN(7, "gpio7"), 64 PINCTRL_PIN(8, "gpio8"), 65 PINCTRL_PIN(9, "gpio9"), 66 PINCTRL_PIN(10, "gpio10"), 67 PINCTRL_PIN(11, "gpio11"), 68 PINCTRL_PIN(12, "gpio12"), 69 PINCTRL_PIN(13, "gpio13"), 70 PINCTRL_PIN(14, "gpio14"), 71 }; 72 73 static const char * const swr_tx_clk_groups[] = { "gpio0" }; 74 static const char * const swr_tx_data_groups[] = { "gpio1", "gpio2", "gpio14" }; 75 static const char * const swr_rx_clk_groups[] = { "gpio3" }; 76 static const char * const swr_rx_data_groups[] = { "gpio4", "gpio5" }; 77 static const char * const dmic1_clk_groups[] = { "gpio6" }; 78 static const char * const dmic1_data_groups[] = { "gpio7" }; 79 static const char * const dmic2_clk_groups[] = { "gpio8" }; 80 static const char * const dmic2_data_groups[] = { "gpio9" }; 81 static const char * const i2s2_clk_groups[] = { "gpio10" }; 82 static const char * const i2s2_ws_groups[] = { "gpio11" }; 83 static const char * const dmic3_clk_groups[] = { "gpio12" }; 84 static const char * const dmic3_data_groups[] = { "gpio13" }; 85 static const char * const qua_mi2s_sclk_groups[] = { "gpio0" }; 86 static const char * const qua_mi2s_ws_groups[] = { "gpio1" }; 87 static const char * const qua_mi2s_data_groups[] = { "gpio2", "gpio3", "gpio4" }; 88 static const char * const i2s1_clk_groups[] = { "gpio6" }; 89 static const char * const i2s1_ws_groups[] = { "gpio7" }; 90 static const char * const i2s1_data_groups[] = { "gpio8", "gpio9" }; 91 static const char * const wsa_swr_clk_groups[] = { "gpio10" }; 92 static const char * const wsa_swr_data_groups[] = { "gpio11" }; 93 static const char * const i2s2_data_groups[] = { "gpio12", "gpio13" }; 94 95 static const struct lpi_pingroup sc7280_groups[] = { 96 LPI_PINGROUP(0, 0, swr_tx_clk, qua_mi2s_sclk, _, _), 97 LPI_PINGROUP(1, 2, swr_tx_data, qua_mi2s_ws, _, _), 98 LPI_PINGROUP(2, 4, swr_tx_data, qua_mi2s_data, _, _), 99 LPI_PINGROUP(3, 8, swr_rx_clk, qua_mi2s_data, _, _), 100 LPI_PINGROUP(4, 10, swr_rx_data, qua_mi2s_data, _, _), 101 LPI_PINGROUP(5, 12, swr_rx_data, _, _, _), 102 LPI_PINGROUP(6, LPI_NO_SLEW, dmic1_clk, i2s1_clk, _, _), 103 LPI_PINGROUP(7, LPI_NO_SLEW, dmic1_data, i2s1_ws, _, _), 104 LPI_PINGROUP(8, LPI_NO_SLEW, dmic2_clk, i2s1_data, _, _), 105 LPI_PINGROUP(9, LPI_NO_SLEW, dmic2_data, i2s1_data, _, _), 106 LPI_PINGROUP(10, 16, i2s2_clk, wsa_swr_clk, _, _), 107 LPI_PINGROUP(11, 18, i2s2_ws, wsa_swr_data, _, _), 108 LPI_PINGROUP(12, LPI_NO_SLEW, dmic3_clk, i2s2_data, _, _), 109 LPI_PINGROUP(13, LPI_NO_SLEW, dmic3_data, i2s2_data, _, _), 110 LPI_PINGROUP(14, 6, swr_tx_data, _, _, _), 111 }; 112 113 static const struct lpi_function sc7280_functions[] = { 114 LPI_FUNCTION(dmic1_clk), 115 LPI_FUNCTION(dmic1_data), 116 LPI_FUNCTION(dmic2_clk), 117 LPI_FUNCTION(dmic2_data), 118 LPI_FUNCTION(dmic3_clk), 119 LPI_FUNCTION(dmic3_data), 120 LPI_FUNCTION(i2s1_clk), 121 LPI_FUNCTION(i2s1_data), 122 LPI_FUNCTION(i2s1_ws), 123 LPI_FUNCTION(i2s2_clk), 124 LPI_FUNCTION(i2s2_data), 125 LPI_FUNCTION(i2s2_ws), 126 LPI_FUNCTION(qua_mi2s_data), 127 LPI_FUNCTION(qua_mi2s_sclk), 128 LPI_FUNCTION(qua_mi2s_ws), 129 LPI_FUNCTION(swr_rx_clk), 130 LPI_FUNCTION(swr_rx_data), 131 LPI_FUNCTION(swr_tx_clk), 132 LPI_FUNCTION(swr_tx_data), 133 LPI_FUNCTION(wsa_swr_clk), 134 LPI_FUNCTION(wsa_swr_data), 135 }; 136 137 static const struct lpi_pinctrl_variant_data sc7280_lpi_data = { 138 .pins = sc7280_lpi_pins, 139 .npins = ARRAY_SIZE(sc7280_lpi_pins), 140 .groups = sc7280_groups, 141 .ngroups = ARRAY_SIZE(sc7280_groups), 142 .functions = sc7280_functions, 143 .nfunctions = ARRAY_SIZE(sc7280_functions), 144 }; 145 146 static const struct of_device_id lpi_pinctrl_of_match[] = { 147 { 148 .compatible = "qcom,sc7280-lpass-lpi-pinctrl", 149 .data = &sc7280_lpi_data, 150 }, 151 { } 152 }; 153 MODULE_DEVICE_TABLE(of, lpi_pinctrl_of_match); 154 155 static struct platform_driver lpi_pinctrl_driver = { 156 .driver = { 157 .name = "qcom-sc7280-lpass-lpi-pinctrl", 158 .of_match_table = lpi_pinctrl_of_match, 159 }, 160 .probe = lpi_pinctrl_probe, 161 .remove = lpi_pinctrl_remove, 162 }; 163 164 module_platform_driver(lpi_pinctrl_driver); 165 MODULE_DESCRIPTION("QTI SC7280 LPI GPIO pin control driver"); 166 MODULE_LICENSE("GPL"); 167