1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
4 * Copyright (c) 2020-2023 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
13enum 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
39static const struct pinctrl_pin_desc sm8350_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
57static const char * const swr_tx_clk_groups[] = { "gpio0" };
58static const char * const swr_tx_data_groups[] = { "gpio1", "gpio2", "gpio5", "gpio14" };
59static const char * const swr_rx_clk_groups[] = { "gpio3" };
60static const char * const swr_rx_data_groups[] = { "gpio4", "gpio5" };
61static const char * const dmic1_clk_groups[] = { "gpio6" };
62static const char * const dmic1_data_groups[] = { "gpio7" };
63static const char * const dmic2_clk_groups[] = { "gpio8" };
64static const char * const dmic2_data_groups[] = { "gpio9" };
65static const char * const i2s2_clk_groups[] = { "gpio10" };
66static const char * const i2s2_ws_groups[] = { "gpio11" };
67static const char * const dmic3_clk_groups[] = { "gpio12" };
68static const char * const dmic3_data_groups[] = { "gpio13" };
69static const char * const qua_mi2s_sclk_groups[] = { "gpio0" };
70static const char * const qua_mi2s_ws_groups[] = { "gpio1" };
71static const char * const qua_mi2s_data_groups[] = { "gpio2", "gpio3", "gpio4" };
72static const char * const i2s1_clk_groups[] = { "gpio6" };
73static const char * const i2s1_ws_groups[] = { "gpio7" };
74static const char * const i2s1_data_groups[] = { "gpio8", "gpio9" };
75static const char * const wsa_swr_clk_groups[] = { "gpio10" };
76static const char * const wsa_swr_data_groups[] = { "gpio11" };
77static const char * const i2s2_data_groups[] = { "gpio12", "gpio12" };
78
79static const struct lpi_pingroup sm8350_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_tx_data, 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
97static const struct lpi_function sm8350_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
121static const struct lpi_pinctrl_variant_data sm8350_lpi_data = {
122 .pins = sm8350_lpi_pins,
123 .npins = ARRAY_SIZE(sm8350_lpi_pins),
124 .groups = sm8350_groups,
125 .ngroups = ARRAY_SIZE(sm8350_groups),
126 .functions = sm8350_functions,
127 .nfunctions = ARRAY_SIZE(sm8350_functions),
128};
129
130static const struct of_device_id lpi_pinctrl_of_match[] = {
131 {
132 .compatible = "qcom,sm8350-lpass-lpi-pinctrl",
133 .data = &sm8350_lpi_data,
134 },
135 { }
136};
137MODULE_DEVICE_TABLE(of, lpi_pinctrl_of_match);
138
139static struct platform_driver lpi_pinctrl_driver = {
140 .driver = {
141 .name = "qcom-sm8350-lpass-lpi-pinctrl",
142 .of_match_table = lpi_pinctrl_of_match,
143 },
144 .probe = lpi_pinctrl_probe,
145 .remove_new = lpi_pinctrl_remove,
146};
147module_platform_driver(lpi_pinctrl_driver);
148
149MODULE_AUTHOR("Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>");
150MODULE_DESCRIPTION("QTI SM8350 LPI GPIO pin control driver");
151MODULE_LICENSE("GPL");
152

source code of linux/drivers/pinctrl/qcom/pinctrl-sm8350-lpass-lpi.c