drivers/pinctrl/qcom/pinctrl-sm8250-lpass-lpi.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
   4  * Copyright (c) 2020 Linaro Ltd.
   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
  54 static const struct pinctrl_pin_desc sm8250_lpi_pins[] = {
  55         PINCTRL_PIN(0, "gpio0"),
  56         PINCTRL_PIN(1, "gpio1"),
  57         PINCTRL_PIN(2, "gpio2"),
  58         PINCTRL_PIN(3, "gpio3"),
  59         PINCTRL_PIN(4, "gpio4"),
  60         PINCTRL_PIN(5, "gpio5"),
  61         PINCTRL_PIN(6, "gpio6"),
  62         PINCTRL_PIN(7, "gpio7"),
  63         PINCTRL_PIN(8, "gpio8"),
  64         PINCTRL_PIN(9, "gpio9"),
  65         PINCTRL_PIN(10, "gpio10"),
  66         PINCTRL_PIN(11, "gpio11"),
  67         PINCTRL_PIN(12, "gpio12"),
  68         PINCTRL_PIN(13, "gpio13"),
  69 };
  70
  71 static const char * const swr_tx_clk_groups[] = { "gpio0" };
  72 static const char * const swr_tx_data_groups[] = { "gpio1", "gpio2", "gpio5" };
  73 static const char * const swr_rx_clk_groups[] = { "gpio3" };
  74 static const char * const swr_rx_data_groups[] = { "gpio4", "gpio5" };
  75 static const char * const dmic1_clk_groups[] = { "gpio6" };
  76 static const char * const dmic1_data_groups[] = { "gpio7" };
  77 static const char * const dmic2_clk_groups[] = { "gpio8" };
  78 static const char * const dmic2_data_groups[] = { "gpio9" };
  79 static const char * const i2s2_clk_groups[] = { "gpio10" };
  80 static const char * const i2s2_ws_groups[] = { "gpio11" };
  81 static const char * const dmic3_clk_groups[] = { "gpio12" };
  82 static const char * const dmic3_data_groups[] = { "gpio13" };
  83 static const char * const qua_mi2s_sclk_groups[] = { "gpio0" };
  84 static const char * const qua_mi2s_ws_groups[] = { "gpio1" };
  85 static const char * const qua_mi2s_data_groups[] = { "gpio2", "gpio3", "gpio4" };
  86 static const char * const i2s1_clk_groups[] = { "gpio6" };
  87 static const char * const i2s1_ws_groups[] = { "gpio7" };
  88 static const char * const i2s1_data_groups[] = { "gpio8", "gpio9" };
  89 static const char * const wsa_swr_clk_groups[] = { "gpio10" };
  90 static const char * const wsa_swr_data_groups[] = { "gpio11" };
  91 static const char * const i2s2_data_groups[] = { "gpio12", "gpio12" };
  92
  93 static const struct lpi_pingroup sm8250_groups[] = {
  94         LPI_PINGROUP(0, 0, swr_tx_clk, qua_mi2s_sclk, _, _),
  95         LPI_PINGROUP(1, 2, swr_tx_data, qua_mi2s_ws, _, _),
  96         LPI_PINGROUP(2, 4, swr_tx_data, qua_mi2s_data, _, _),
  97         LPI_PINGROUP(3, 8, swr_rx_clk, qua_mi2s_data, _, _),
  98         LPI_PINGROUP(4, 10, swr_rx_data, qua_mi2s_data, _, _),
  99         LPI_PINGROUP(5, 12, swr_tx_data, swr_rx_data, _, _),
 100         LPI_PINGROUP(6, LPI_NO_SLEW, dmic1_clk, i2s1_clk, _,  _),
 101         LPI_PINGROUP(7, LPI_NO_SLEW, dmic1_data, i2s1_ws, _, _),
 102         LPI_PINGROUP(8, LPI_NO_SLEW, dmic2_clk, i2s1_data, _, _),
 103         LPI_PINGROUP(9, LPI_NO_SLEW, dmic2_data, i2s1_data, _, _),
 104         LPI_PINGROUP(10, 16, i2s2_clk, wsa_swr_clk, _, _),
 105         LPI_PINGROUP(11, 18, i2s2_ws, wsa_swr_data, _, _),
 106         LPI_PINGROUP(12, LPI_NO_SLEW, dmic3_clk, i2s2_data, _, _),
 107         LPI_PINGROUP(13, LPI_NO_SLEW, dmic3_data, i2s2_data, _, _),
 108 };
 109
 110 static const struct lpi_function sm8250_functions[] = {
 111         LPI_FUNCTION(dmic1_clk),
 112         LPI_FUNCTION(dmic1_data),
 113         LPI_FUNCTION(dmic2_clk),
 114         LPI_FUNCTION(dmic2_data),
 115         LPI_FUNCTION(dmic3_clk),
 116         LPI_FUNCTION(dmic3_data),
 117         LPI_FUNCTION(i2s1_clk),
 118         LPI_FUNCTION(i2s1_data),
 119         LPI_FUNCTION(i2s1_ws),
 120         LPI_FUNCTION(i2s2_clk),
 121         LPI_FUNCTION(i2s2_data),
 122         LPI_FUNCTION(i2s2_ws),
 123         LPI_FUNCTION(qua_mi2s_data),
 124         LPI_FUNCTION(qua_mi2s_sclk),
 125         LPI_FUNCTION(qua_mi2s_ws),
 126         LPI_FUNCTION(swr_rx_clk),
 127         LPI_FUNCTION(swr_rx_data),
 128         LPI_FUNCTION(swr_tx_clk),
 129         LPI_FUNCTION(swr_tx_data),
 130         LPI_FUNCTION(wsa_swr_clk),
 131         LPI_FUNCTION(wsa_swr_data),
 132 };
 133
 134 static const struct lpi_pinctrl_variant_data sm8250_lpi_data = {
 135         .pins = sm8250_lpi_pins,
 136         .npins = ARRAY_SIZE(sm8250_lpi_pins),
 137         .groups = sm8250_groups,
 138         .ngroups = ARRAY_SIZE(sm8250_groups),
 139         .functions = sm8250_functions,
 140         .nfunctions = ARRAY_SIZE(sm8250_functions),
 141 };
 142
 143 static const struct of_device_id lpi_pinctrl_of_match[] = {
 144         {
 145                .compatible = "qcom,sm8250-lpass-lpi-pinctrl",
 146                .data = &sm8250_lpi_data,
 147         },
 148         { }
 149 };
 150 MODULE_DEVICE_TABLE(of, lpi_pinctrl_of_match);
 151
 152 static struct platform_driver lpi_pinctrl_driver = {
 153         .driver = {
 154                    .name = "qcom-sm8250-lpass-lpi-pinctrl",
 155                    .of_match_table = lpi_pinctrl_of_match,
 156         },
 157         .probe = lpi_pinctrl_probe,
 158         .remove = lpi_pinctrl_remove,
 159 };
 160
 161 module_platform_driver(lpi_pinctrl_driver);
 162 MODULE_DESCRIPTION("QTI SM8250 LPI GPIO pin control driver");
 163 MODULE_LICENSE("GPL");