pinctrl-amdisp.h

 1/* SPDX-License-Identifier: GPL-2.0+ */
 2/*
 3 * AMD ISP Pinctrl Driver
 4 *
 5 * Copyright (C) 2025 Advanced Micro Devices, Inc. All rights reserved.
 6 *
 7 */
 8
 9static const struct pinctrl_pin_desc amdisp_pins[] = {
10	PINCTRL_PIN(0, "GPIO_0"), /* sensor0 control */
11	PINCTRL_PIN(1, "GPIO_1"), /* sensor1 control */
12	PINCTRL_PIN(2, "GPIO_2"), /* sensor2 control */
13};
14
15#define AMDISP_GPIO_PINS(pin) \
16static const unsigned int gpio##pin##_pins[] = { pin }
17AMDISP_GPIO_PINS(0);
18AMDISP_GPIO_PINS(1);
19AMDISP_GPIO_PINS(2);
20
21static const unsigned int amdisp_range_pins[] = {
22	0, 1, 2
23};
24
25static const char * const amdisp_range_pins_name[] = {
26	"gpio0", "gpio1", "gpio2"
27};
28
29enum amdisp_functions {
30	mux_gpio,
31	mux_NA
32};
33
34static const char * const gpio_groups[] = {
35	"gpio0", "gpio1", "gpio2"
36};
37
38/**
39 * struct amdisp_function - a pinmux function
40 * @name:    Name of the pinmux function.
41 * @groups:  List of pingroups for this function.
42 * @ngroups: Number of entries in @groups.
43 */
44struct amdisp_function {
45	const char *name;
46	const char * const *groups;
47	unsigned int ngroups;
48};
49
50#define FUNCTION(fname)					\
51	[mux_##fname] = {				\
52		.name = #fname,				\
53		.groups = fname##_groups,		\
54		.ngroups = ARRAY_SIZE(fname##_groups),	\
55	}
56
57static const struct amdisp_function amdisp_functions[] = {
58	FUNCTION(gpio),
59};
60
61/**
62 * struct amdisp_pingroup - a pinmux group
63 * @name:  Name of the pinmux group.
64 * @pins:  List of pins for this group.
65 * @npins: Number of entries in @pins.
66 * @funcs: List of functions belongs to this group.
67 * @nfuncs: Number of entries in @funcs.
68 * @offset: Group offset in amdisp pinmux groups.
69 */
70struct amdisp_pingroup {
71	const char *name;
72	const unsigned int *pins;
73	unsigned int npins;
74	unsigned int *funcs;
75	unsigned int nfuncs;
76	unsigned int offset;
77};
78
79#define PINGROUP(id, f0)					\
80	{							\
81		.name = "gpio" #id,				\
82		.pins = gpio##id##_pins,			\
83		.npins = ARRAY_SIZE(gpio##id##_pins),		\
84		.funcs = (int[]){				\
85			mux_##f0,				\
86		},						\
87		.nfuncs = 1,					\
88		.offset = id,					\
89	}
90
91static const struct amdisp_pingroup amdisp_groups[] = {
92	PINGROUP(0, gpio),
93	PINGROUP(1, gpio),
94	PINGROUP(2, gpio),
95};