1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2022 Linaro Ltd.
4 */
5
6#include <linux/gpio/driver.h>
7#include <linux/module.h>
8#include <linux/platform_device.h>
9
10#include "pinctrl-lpass-lpi.h"
11
12enum lpass_lpi_functions {
13 LPI_MUX_dmic1_clk,
14 LPI_MUX_dmic1_data,
15 LPI_MUX_dmic2_clk,
16 LPI_MUX_dmic2_data,
17 LPI_MUX_dmic3_clk,
18 LPI_MUX_dmic3_data,
19 LPI_MUX_dmic4_clk,
20 LPI_MUX_dmic4_data,
21 LPI_MUX_i2s1_clk,
22 LPI_MUX_i2s1_data,
23 LPI_MUX_i2s1_ws,
24 LPI_MUX_i2s2_clk,
25 LPI_MUX_i2s2_data,
26 LPI_MUX_i2s2_ws,
27 LPI_MUX_i2s3_clk,
28 LPI_MUX_i2s3_data,
29 LPI_MUX_i2s3_ws,
30 LPI_MUX_qua_mi2s_data,
31 LPI_MUX_qua_mi2s_sclk,
32 LPI_MUX_qua_mi2s_ws,
33 LPI_MUX_swr_rx_clk,
34 LPI_MUX_swr_rx_data,
35 LPI_MUX_swr_tx_clk,
36 LPI_MUX_swr_tx_data,
37 LPI_MUX_wsa_swr_clk,
38 LPI_MUX_wsa_swr_data,
39 LPI_MUX_wsa2_swr_clk,
40 LPI_MUX_wsa2_swr_data,
41 LPI_MUX_ext_mclk1_a,
42 LPI_MUX_ext_mclk1_b,
43 LPI_MUX_ext_mclk1_c,
44 LPI_MUX_gpio,
45 LPI_MUX__,
46};
47
48static const struct pinctrl_pin_desc sc8280xp_lpi_pins[] = {
49 PINCTRL_PIN(0, "gpio0"),
50 PINCTRL_PIN(1, "gpio1"),
51 PINCTRL_PIN(2, "gpio2"),
52 PINCTRL_PIN(3, "gpio3"),
53 PINCTRL_PIN(4, "gpio4"),
54 PINCTRL_PIN(5, "gpio5"),
55 PINCTRL_PIN(6, "gpio6"),
56 PINCTRL_PIN(7, "gpio7"),
57 PINCTRL_PIN(8, "gpio8"),
58 PINCTRL_PIN(9, "gpio9"),
59 PINCTRL_PIN(10, "gpio10"),
60 PINCTRL_PIN(11, "gpio11"),
61 PINCTRL_PIN(12, "gpio12"),
62 PINCTRL_PIN(13, "gpio13"),
63 PINCTRL_PIN(14, "gpio14"),
64 PINCTRL_PIN(15, "gpio15"),
65 PINCTRL_PIN(16, "gpio16"),
66 PINCTRL_PIN(17, "gpio17"),
67 PINCTRL_PIN(18, "gpio18"),
68};
69
70static const char * const swr_tx_clk_groups[] = { "gpio0" };
71static const char * const swr_tx_data_groups[] = { "gpio1", "gpio2", "gpio14" };
72static const char * const swr_rx_clk_groups[] = { "gpio3" };
73static const char * const swr_rx_data_groups[] = { "gpio4", "gpio5" };
74static const char * const dmic1_clk_groups[] = { "gpio6" };
75static const char * const dmic1_data_groups[] = { "gpio7" };
76static const char * const dmic2_clk_groups[] = { "gpio8" };
77static const char * const dmic2_data_groups[] = { "gpio9" };
78static const char * const dmic4_clk_groups[] = { "gpio17" };
79static const char * const dmic4_data_groups[] = { "gpio18" };
80static const char * const i2s2_clk_groups[] = { "gpio10" };
81static const char * const i2s2_ws_groups[] = { "gpio11" };
82static const char * const dmic3_clk_groups[] = { "gpio12" };
83static const char * const dmic3_data_groups[] = { "gpio13" };
84static const char * const qua_mi2s_sclk_groups[] = { "gpio0" };
85static const char * const qua_mi2s_ws_groups[] = { "gpio1" };
86static const char * const qua_mi2s_data_groups[] = { "gpio2", "gpio3", "gpio4", "gpio5" };
87static const char * const i2s1_clk_groups[] = { "gpio6" };
88static const char * const i2s1_ws_groups[] = { "gpio7" };
89static const char * const i2s1_data_groups[] = { "gpio8", "gpio9" };
90static const char * const wsa_swr_clk_groups[] = { "gpio10" };
91static const char * const wsa_swr_data_groups[] = { "gpio11" };
92static const char * const wsa2_swr_clk_groups[] = { "gpio15" };
93static const char * const wsa2_swr_data_groups[] = { "gpio16" };
94static const char * const i2s2_data_groups[] = { "gpio15", "gpio16" };
95static const char * const i2s3_clk_groups[] = { "gpio12"};
96static const char * const i2s3_ws_groups[] = { "gpio13"};
97static const char * const i2s3_data_groups[] = { "gpio17", "gpio18"};
98static const char * const ext_mclk1_c_groups[] = { "gpio5" };
99static const char * const ext_mclk1_b_groups[] = { "gpio9" };
100static const char * const ext_mclk1_a_groups[] = { "gpio13" };
101
102static const struct lpi_pingroup sc8280xp_groups[] = {
103 LPI_PINGROUP(0, 0, swr_tx_clk, qua_mi2s_sclk, _, _),
104 LPI_PINGROUP(1, 2, swr_tx_data, qua_mi2s_ws, _, _),
105 LPI_PINGROUP(2, 4, swr_tx_data, qua_mi2s_data, _, _),
106 LPI_PINGROUP(3, 8, swr_rx_clk, qua_mi2s_data, _, _),
107 LPI_PINGROUP(4, 10, swr_rx_data, qua_mi2s_data, _, _),
108 LPI_PINGROUP(5, 12, swr_rx_data, ext_mclk1_c, qua_mi2s_data, _),
109 LPI_PINGROUP(6, LPI_NO_SLEW, dmic1_clk, i2s1_clk, _, _),
110 LPI_PINGROUP(7, LPI_NO_SLEW, dmic1_data, i2s1_ws, _, _),
111 LPI_PINGROUP(8, LPI_NO_SLEW, dmic2_clk, i2s1_data, _, _),
112 LPI_PINGROUP(9, LPI_NO_SLEW, dmic2_data, i2s1_data, ext_mclk1_b, _),
113 LPI_PINGROUP(10, 16, i2s2_clk, wsa_swr_clk, _, _),
114 LPI_PINGROUP(11, 18, i2s2_ws, wsa_swr_data, _, _),
115 LPI_PINGROUP(12, LPI_NO_SLEW, dmic3_clk, i2s3_clk, _, _),
116 LPI_PINGROUP(13, LPI_NO_SLEW, dmic3_data, i2s3_ws, ext_mclk1_a, _),
117 LPI_PINGROUP(14, 6, swr_tx_data, _, _, _),
118 LPI_PINGROUP(15, 20, i2s2_data, wsa2_swr_clk, _, _),
119 LPI_PINGROUP(16, 22, i2s2_data, wsa2_swr_data, _, _),
120 LPI_PINGROUP(17, LPI_NO_SLEW, dmic4_clk, i2s3_data, _, _),
121 LPI_PINGROUP(18, LPI_NO_SLEW, dmic4_data, i2s3_data, _, _),
122};
123
124static const struct lpi_function sc8280xp_functions[] = {
125 LPI_FUNCTION(dmic1_clk),
126 LPI_FUNCTION(dmic1_data),
127 LPI_FUNCTION(dmic2_clk),
128 LPI_FUNCTION(dmic2_data),
129 LPI_FUNCTION(dmic3_clk),
130 LPI_FUNCTION(dmic3_data),
131 LPI_FUNCTION(dmic4_clk),
132 LPI_FUNCTION(dmic4_data),
133 LPI_FUNCTION(i2s1_clk),
134 LPI_FUNCTION(i2s1_data),
135 LPI_FUNCTION(i2s1_ws),
136 LPI_FUNCTION(i2s2_clk),
137 LPI_FUNCTION(i2s2_data),
138 LPI_FUNCTION(i2s2_ws),
139 LPI_FUNCTION(i2s3_clk),
140 LPI_FUNCTION(i2s3_data),
141 LPI_FUNCTION(i2s3_ws),
142 LPI_FUNCTION(qua_mi2s_data),
143 LPI_FUNCTION(qua_mi2s_sclk),
144 LPI_FUNCTION(qua_mi2s_ws),
145 LPI_FUNCTION(swr_rx_clk),
146 LPI_FUNCTION(swr_rx_data),
147 LPI_FUNCTION(swr_tx_clk),
148 LPI_FUNCTION(swr_tx_data),
149 LPI_FUNCTION(wsa_swr_clk),
150 LPI_FUNCTION(wsa_swr_data),
151 LPI_FUNCTION(wsa2_swr_clk),
152 LPI_FUNCTION(wsa2_swr_data),
153 LPI_FUNCTION(ext_mclk1_a),
154 LPI_FUNCTION(ext_mclk1_b),
155 LPI_FUNCTION(ext_mclk1_c),
156};
157
158static const struct lpi_pinctrl_variant_data sc8280xp_lpi_data = {
159 .pins = sc8280xp_lpi_pins,
160 .npins = ARRAY_SIZE(sc8280xp_lpi_pins),
161 .groups = sc8280xp_groups,
162 .ngroups = ARRAY_SIZE(sc8280xp_groups),
163 .functions = sc8280xp_functions,
164 .nfunctions = ARRAY_SIZE(sc8280xp_functions),
165};
166
167static const struct of_device_id lpi_pinctrl_of_match[] = {
168 {
169 .compatible = "qcom,sc8280xp-lpass-lpi-pinctrl",
170 .data = &sc8280xp_lpi_data,
171 },
172 { }
173};
174MODULE_DEVICE_TABLE(of, lpi_pinctrl_of_match);
175
176static struct platform_driver lpi_pinctrl_driver = {
177 .driver = {
178 .name = "qcom-sc8280xp-lpass-lpi-pinctrl",
179 .of_match_table = lpi_pinctrl_of_match,
180 },
181 .probe = lpi_pinctrl_probe,
182 .remove = lpi_pinctrl_remove,
183};
184
185module_platform_driver(lpi_pinctrl_driver);
186MODULE_DESCRIPTION("QTI SC8280XP LPI GPIO pin control driver");
187MODULE_LICENSE("GPL");
188

source code of linux/drivers/pinctrl/qcom/pinctrl-sc8280xp-lpass-lpi.c