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 const struct pinctrl_pin_desc sc7280_lpi_pins[] = { 40 PINCTRL_PIN(0, "gpio0"), 41 PINCTRL_PIN(1, "gpio1"), 42 PINCTRL_PIN(2, "gpio2"), 43 PINCTRL_PIN(3, "gpio3"), 44 PINCTRL_PIN(4, "gpio4"), 45 PINCTRL_PIN(5, "gpio5"), 46 PINCTRL_PIN(6, "gpio6"), 47 PINCTRL_PIN(7, "gpio7"), 48 PINCTRL_PIN(8, "gpio8"), 49 PINCTRL_PIN(9, "gpio9"), 50 PINCTRL_PIN(10, "gpio10"), 51 PINCTRL_PIN(11, "gpio11"), 52 PINCTRL_PIN(12, "gpio12"), 53 PINCTRL_PIN(13, "gpio13"), 54 PINCTRL_PIN(14, "gpio14"), 55 }; 56 57 static const char * const swr_tx_clk_groups[] = { "gpio0" }; 58 static const char * const swr_tx_data_groups[] = { "gpio1", "gpio2", "gpio14" }; 59 static const char * const swr_rx_clk_groups[] = { "gpio3" }; 60 static const char * const swr_rx_data_groups[] = { "gpio4", "gpio5" }; 61 static const char * const dmic1_clk_groups[] = { "gpio6" }; 62 static const char * const dmic1_data_groups[] = { "gpio7" }; 63 static const char * const dmic2_clk_groups[] = { "gpio8" }; 64 static const char * const dmic2_data_groups[] = { "gpio9" }; 65 static const char * const i2s2_clk_groups[] = { "gpio10" }; 66 static const char * const i2s2_ws_groups[] = { "gpio11" }; 67 static const char * const dmic3_clk_groups[] = { "gpio12" }; 68 static const char * const dmic3_data_groups[] = { "gpio13" }; 69 static const char * const qua_mi2s_sclk_groups[] = { "gpio0" }; 70 static const char * const qua_mi2s_ws_groups[] = { "gpio1" }; 71 static const char * const qua_mi2s_data_groups[] = { "gpio2", "gpio3", "gpio4" }; 72 static const char * const i2s1_clk_groups[] = { "gpio6" }; 73 static const char * const i2s1_ws_groups[] = { "gpio7" }; 74 static const char * const i2s1_data_groups[] = { "gpio8", "gpio9" }; 75 static const char * const wsa_swr_clk_groups[] = { "gpio10" }; 76 static const char * const wsa_swr_data_groups[] = { "gpio11" }; 77 static const char * const i2s2_data_groups[] = { "gpio12", "gpio13" }; 78 79 static const struct lpi_pingroup sc7280_groups[] = { 80 LPI_PINGROUP(0, 0, swr_tx_clk, qua_mi2s_sclk, _, _), 81 LPI_PINGROUP(1, 2, swr_tx_data, qua_mi2s_ws, _, _), 82 LPI_PINGROUP(2, 4, swr_tx_data, qua_mi2s_data, _, _), 83 LPI_PINGROUP(3, 8, swr_rx_clk, qua_mi2s_data, _, _), 84 LPI_PINGROUP(4, 10, swr_rx_data, qua_mi2s_data, _, _), 85 LPI_PINGROUP(5, 12, swr_rx_data, _, _, _), 86 LPI_PINGROUP(6, LPI_NO_SLEW, dmic1_clk, i2s1_clk, _, _), 87 LPI_PINGROUP(7, LPI_NO_SLEW, dmic1_data, i2s1_ws, _, _), 88 LPI_PINGROUP(8, LPI_NO_SLEW, dmic2_clk, i2s1_data, _, _), 89 LPI_PINGROUP(9, LPI_NO_SLEW, dmic2_data, i2s1_data, _, _), 90 LPI_PINGROUP(10, 16, i2s2_clk, wsa_swr_clk, _, _), 91 LPI_PINGROUP(11, 18, i2s2_ws, wsa_swr_data, _, _), 92 LPI_PINGROUP(12, LPI_NO_SLEW, dmic3_clk, i2s2_data, _, _), 93 LPI_PINGROUP(13, LPI_NO_SLEW, dmic3_data, i2s2_data, _, _), 94 LPI_PINGROUP(14, 6, swr_tx_data, _, _, _), 95 }; 96 97 static const struct lpi_function sc7280_functions[] = { 98 LPI_FUNCTION(dmic1_clk), 99 LPI_FUNCTION(dmic1_data), 100 LPI_FUNCTION(dmic2_clk), 101 LPI_FUNCTION(dmic2_data), 102 LPI_FUNCTION(dmic3_clk), 103 LPI_FUNCTION(dmic3_data), 104 LPI_FUNCTION(i2s1_clk), 105 LPI_FUNCTION(i2s1_data), 106 LPI_FUNCTION(i2s1_ws), 107 LPI_FUNCTION(i2s2_clk), 108 LPI_FUNCTION(i2s2_data), 109 LPI_FUNCTION(i2s2_ws), 110 LPI_FUNCTION(qua_mi2s_data), 111 LPI_FUNCTION(qua_mi2s_sclk), 112 LPI_FUNCTION(qua_mi2s_ws), 113 LPI_FUNCTION(swr_rx_clk), 114 LPI_FUNCTION(swr_rx_data), 115 LPI_FUNCTION(swr_tx_clk), 116 LPI_FUNCTION(swr_tx_data), 117 LPI_FUNCTION(wsa_swr_clk), 118 LPI_FUNCTION(wsa_swr_data), 119 }; 120 121 static const struct lpi_pinctrl_variant_data sc7280_lpi_data = { 122 .pins = sc7280_lpi_pins, 123 .npins = ARRAY_SIZE(sc7280_lpi_pins), 124 .groups = sc7280_groups, 125 .ngroups = ARRAY_SIZE(sc7280_groups), 126 .functions = sc7280_functions, 127 .nfunctions = ARRAY_SIZE(sc7280_functions), 128 }; 129 130 static const struct of_device_id lpi_pinctrl_of_match[] = { 131 { 132 .compatible = "qcom,sc7280-lpass-lpi-pinctrl", 133 .data = &sc7280_lpi_data, 134 }, 135 { } 136 }; 137 MODULE_DEVICE_TABLE(of, lpi_pinctrl_of_match); 138 139 static struct platform_driver lpi_pinctrl_driver = { 140 .driver = { 141 .name = "qcom-sc7280-lpass-lpi-pinctrl", 142 .of_match_table = lpi_pinctrl_of_match, 143 }, 144 .probe = lpi_pinctrl_probe, 145 .remove_new = lpi_pinctrl_remove, 146 }; 147 148 module_platform_driver(lpi_pinctrl_driver); 149 MODULE_DESCRIPTION("QTI SC7280 LPI GPIO pin control driver"); 150 MODULE_LICENSE("GPL"); 151