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mvebu: pinctrl: sync compatible string with Linux 4.17-rc4
[u-boot] / drivers / pinctrl / pinctrl-sandbox.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2015  Masahiro Yamada <yamada.masahiro@socionext.com>
4  */
5
6 /* #define DEBUG */
7
8 #include <common.h>
9 #include <dm.h>
10 #include <dm/pinctrl.h>
11
12 static const char * const sandbox_pins[] = {
13         "SCL",
14         "SDA",
15         "TX",
16         "RX",
17 };
18
19 static const char * const sandbox_groups[] = {
20         "i2c",
21         "serial_a",
22         "serial_b",
23         "spi",
24 };
25
26 static const char * const sandbox_functions[] = {
27         "i2c",
28         "serial",
29         "spi",
30 };
31
32 static const struct pinconf_param sandbox_conf_params[] = {
33         { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
34         { "bias-high-impedance", PIN_CONFIG_BIAS_HIGH_IMPEDANCE, 0 },
35         { "bias-bus-hold", PIN_CONFIG_BIAS_BUS_HOLD, 0 },
36         { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
37         { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
38         { "bias-pull-pin-default", PIN_CONFIG_BIAS_PULL_PIN_DEFAULT, 1 },
39         { "drive-open-drain", PIN_CONFIG_DRIVE_OPEN_DRAIN, 0 },
40         { "drive-open-source", PIN_CONFIG_DRIVE_OPEN_SOURCE, 0 },
41         { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 },
42         { "input-enable", PIN_CONFIG_INPUT_ENABLE, 1 },
43         { "input-disable", PIN_CONFIG_INPUT_ENABLE, 0 },
44 };
45
46 static int sandbox_get_pins_count(struct udevice *dev)
47 {
48         return ARRAY_SIZE(sandbox_pins);
49 }
50
51 static const char *sandbox_get_pin_name(struct udevice *dev, unsigned selector)
52 {
53         return sandbox_pins[selector];
54 }
55
56 static int sandbox_get_groups_count(struct udevice *dev)
57 {
58         return ARRAY_SIZE(sandbox_groups);
59 }
60
61 static const char *sandbox_get_group_name(struct udevice *dev,
62                                           unsigned selector)
63 {
64         return sandbox_groups[selector];
65 }
66
67 static int sandbox_get_functions_count(struct udevice *dev)
68 {
69         return ARRAY_SIZE(sandbox_functions);
70 }
71
72 static const char *sandbox_get_function_name(struct udevice *dev,
73                                              unsigned selector)
74 {
75         return sandbox_functions[selector];
76 }
77
78 static int sandbox_pinmux_set(struct udevice *dev, unsigned pin_selector,
79                               unsigned func_selector)
80 {
81         debug("sandbox pinmux: pin = %d (%s), function = %d (%s)\n",
82               pin_selector, sandbox_get_pin_name(dev, pin_selector),
83               func_selector, sandbox_get_function_name(dev, func_selector));
84
85         return 0;
86 }
87
88 static int sandbox_pinmux_group_set(struct udevice *dev,
89                                     unsigned group_selector,
90                                     unsigned func_selector)
91 {
92         debug("sandbox pinmux: group = %d (%s), function = %d (%s)\n",
93               group_selector, sandbox_get_group_name(dev, group_selector),
94               func_selector, sandbox_get_function_name(dev, func_selector));
95
96         return 0;
97 }
98
99 static int sandbox_pinconf_set(struct udevice *dev, unsigned pin_selector,
100                                unsigned param, unsigned argument)
101 {
102         debug("sandbox pinconf: pin = %d (%s), param = %d, arg = %d\n",
103               pin_selector, sandbox_get_pin_name(dev, pin_selector),
104               param, argument);
105
106         return 0;
107 }
108
109 static int sandbox_pinconf_group_set(struct udevice *dev,
110                                      unsigned group_selector,
111                                      unsigned param, unsigned argument)
112 {
113         debug("sandbox pinconf: group = %d (%s), param = %d, arg = %d\n",
114               group_selector, sandbox_get_group_name(dev, group_selector),
115               param, argument);
116
117         return 0;
118 }
119
120 const struct pinctrl_ops sandbox_pinctrl_ops = {
121         .get_pins_count = sandbox_get_pins_count,
122         .get_pin_name = sandbox_get_pin_name,
123         .get_groups_count = sandbox_get_groups_count,
124         .get_group_name = sandbox_get_group_name,
125         .get_functions_count = sandbox_get_functions_count,
126         .get_function_name = sandbox_get_function_name,
127         .pinmux_set = sandbox_pinmux_set,
128         .pinmux_group_set = sandbox_pinmux_group_set,
129         .pinconf_num_params = ARRAY_SIZE(sandbox_conf_params),
130         .pinconf_params = sandbox_conf_params,
131         .pinconf_set = sandbox_pinconf_set,
132         .pinconf_group_set = sandbox_pinconf_group_set,
133         .set_state = pinctrl_generic_set_state,
134 };
135
136 static const struct udevice_id sandbox_pinctrl_match[] = {
137         { .compatible = "sandbox,pinctrl" },
138         { /* sentinel */ }
139 };
140
141 U_BOOT_DRIVER(sandbox_pinctrl) = {
142         .name = "sandbox_pinctrl",
143         .id = UCLASS_PINCTRL,
144         .of_match = sandbox_pinctrl_match,
145         .ops = &sandbox_pinctrl_ops,
146 };