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 const struct pinctrl_pin_desc sm8250_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 };
  55
  56 static const char * const swr_tx_clk_groups[] = { "gpio0" };
  57 static const char * const swr_tx_data_groups[] = { "gpio1", "gpio2", "gpio5" };
  58 static const char * const swr_rx_clk_groups[] = { "gpio3" };
  59 static const char * const swr_rx_data_groups[] = { "gpio4", "gpio5" };
  60 static const char * const dmic1_clk_groups[] = { "gpio6" };
  61 static const char * const dmic1_data_groups[] = { "gpio7" };
  62 static const char * const dmic2_clk_groups[] = { "gpio8" };
  63 static const char * const dmic2_data_groups[] = { "gpio9" };
  64 static const char * const i2s2_clk_groups[] = { "gpio10" };
  65 static const char * const i2s2_ws_groups[] = { "gpio11" };
  66 static const char * const dmic3_clk_groups[] = { "gpio12" };
  67 static const char * const dmic3_data_groups[] = { "gpio13" };
  68 static const char * const qua_mi2s_sclk_groups[] = { "gpio0" };
  69 static const char * const qua_mi2s_ws_groups[] = { "gpio1" };
  70 static const char * const qua_mi2s_data_groups[] = { "gpio2", "gpio3", "gpio4" };
  71 static const char * const i2s1_clk_groups[] = { "gpio6" };
  72 static const char * const i2s1_ws_groups[] = { "gpio7" };
  73 static const char * const i2s1_data_groups[] = { "gpio8", "gpio9" };
  74 static const char * const wsa_swr_clk_groups[] = { "gpio10" };
  75 static const char * const wsa_swr_data_groups[] = { "gpio11" };
  76 static const char * const i2s2_data_groups[] = { "gpio12", "gpio12" };
  77
  78 static const struct lpi_pingroup sm8250_groups[] = {
  79         LPI_PINGROUP(0, 0, swr_tx_clk, qua_mi2s_sclk, _, _),
  80         LPI_PINGROUP(1, 2, swr_tx_data, qua_mi2s_ws, _, _),
  81         LPI_PINGROUP(2, 4, swr_tx_data, qua_mi2s_data, _, _),
  82         LPI_PINGROUP(3, 8, swr_rx_clk, qua_mi2s_data, _, _),
  83         LPI_PINGROUP(4, 10, swr_rx_data, qua_mi2s_data, _, _),
  84         LPI_PINGROUP(5, 12, swr_tx_data, swr_rx_data, _, _),
  85         LPI_PINGROUP(6, LPI_NO_SLEW, dmic1_clk, i2s1_clk, _,  _),
  86         LPI_PINGROUP(7, LPI_NO_SLEW, dmic1_data, i2s1_ws, _, _),
  87         LPI_PINGROUP(8, LPI_NO_SLEW, dmic2_clk, i2s1_data, _, _),
  88         LPI_PINGROUP(9, LPI_NO_SLEW, dmic2_data, i2s1_data, _, _),
  89         LPI_PINGROUP(10, 16, i2s2_clk, wsa_swr_clk, _, _),
  90         LPI_PINGROUP(11, 18, i2s2_ws, wsa_swr_data, _, _),
  91         LPI_PINGROUP(12, LPI_NO_SLEW, dmic3_clk, i2s2_data, _, _),
  92         LPI_PINGROUP(13, LPI_NO_SLEW, dmic3_data, i2s2_data, _, _),
  93 };
  94
  95 static const struct lpi_function sm8250_functions[] = {
  96         LPI_FUNCTION(dmic1_clk),
  97         LPI_FUNCTION(dmic1_data),
  98         LPI_FUNCTION(dmic2_clk),
  99         LPI_FUNCTION(dmic2_data),
 100         LPI_FUNCTION(dmic3_clk),
 101         LPI_FUNCTION(dmic3_data),
 102         LPI_FUNCTION(i2s1_clk),
 103         LPI_FUNCTION(i2s1_data),
 104         LPI_FUNCTION(i2s1_ws),
 105         LPI_FUNCTION(i2s2_clk),
 106         LPI_FUNCTION(i2s2_data),
 107         LPI_FUNCTION(i2s2_ws),
 108         LPI_FUNCTION(qua_mi2s_data),
 109         LPI_FUNCTION(qua_mi2s_sclk),
 110         LPI_FUNCTION(qua_mi2s_ws),
 111         LPI_FUNCTION(swr_rx_clk),
 112         LPI_FUNCTION(swr_rx_data),
 113         LPI_FUNCTION(swr_tx_clk),
 114         LPI_FUNCTION(swr_tx_data),
 115         LPI_FUNCTION(wsa_swr_clk),
 116         LPI_FUNCTION(wsa_swr_data),
 117 };
 118
 119 static const struct lpi_pinctrl_variant_data sm8250_lpi_data = {
 120         .pins = sm8250_lpi_pins,
 121         .npins = ARRAY_SIZE(sm8250_lpi_pins),
 122         .groups = sm8250_groups,
 123         .ngroups = ARRAY_SIZE(sm8250_groups),
 124         .functions = sm8250_functions,
 125         .nfunctions = ARRAY_SIZE(sm8250_functions),
 126 };
 127
 128 static const struct of_device_id lpi_pinctrl_of_match[] = {
 129         {
 130                .compatible = "qcom,sm8250-lpass-lpi-pinctrl",
 131                .data = &sm8250_lpi_data,
 132         },
 133         { }
 134 };
 135 MODULE_DEVICE_TABLE(of, lpi_pinctrl_of_match);
 136
 137 static struct platform_driver lpi_pinctrl_driver = {
 138         .driver = {
 139                    .name = "qcom-sm8250-lpass-lpi-pinctrl",
 140                    .of_match_table = lpi_pinctrl_of_match,
 141         },
 142         .probe = lpi_pinctrl_probe,
 143         .remove_new = lpi_pinctrl_remove,
 144 };
 145
 146 module_platform_driver(lpi_pinctrl_driver);
 147 MODULE_DESCRIPTION("QTI SM8250 LPI GPIO pin control driver");
 148 MODULE_LICENSE("GPL");