pinctrl-cv18xx.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2/*
  3 * Copyright (C) 2024 Inochi Amaoto <inochiama@outlook.com>
  4 */
  5
  6#ifndef _PINCTRL_SOPHGO_CV18XX_H
  7#define _PINCTRL_SOPHGO_CV18XX_H
  8
  9#include <linux/bits.h>
 10#include <linux/bitfield.h>
 11#include <linux/mutex.h>
 12#include <linux/spinlock.h>
 13#include <linux/platform_device.h>
 14#include <linux/pinctrl/pinctrl.h>
 15#include <linux/pinctrl/pinconf.h>
 16
 17#include "pinctrl-sophgo.h"
 18
 19enum cv1800_pin_io_type {
 20	IO_TYPE_1V8_ONLY = 0,
 21	IO_TYPE_1V8_OR_3V3 = 1,
 22	IO_TYPE_AUDIO = 2,
 23	IO_TYPE_ETH = 3
 24};
 25
 26#define CV1800_PINCONF_AREA_SYS		0
 27#define CV1800_PINCONF_AREA_RTC		1
 28
 29struct cv1800_pinmux {
 30	u16	offset;
 31	u8	area;
 32	u8	max;
 33};
 34
 35struct cv1800_pinmux2 {
 36	u16	offset;
 37	u8	area;
 38	u8	max;
 39	u8	pfunc;
 40};
 41
 42struct cv1800_pinconf {
 43	u16	offset;
 44	u8	area;
 45};
 46
 47#define	CV1800_PIN_HAVE_MUX2		BIT(0)
 48#define CV1800_PIN_IO_TYPE		GENMASK(2, 1)
 49
 50#define CV1800_PIN_FLAG_IO_TYPE(type)		\
 51	FIELD_PREP_CONST(CV1800_PIN_IO_TYPE, type)
 52struct cv1800_pin {
 53	struct sophgo_pin		pin;
 54	u8				power_domain;
 55	struct cv1800_pinmux		mux;
 56	struct cv1800_pinmux2		mux2;
 57	struct cv1800_pinconf		conf;
 58};
 59
 60#define sophgo_to_cv1800_pin(_pin)		\
 61	container_of((_pin), struct cv1800_pin, pin)
 62
 63#define PIN_POWER_STATE_1V8		1800
 64#define PIN_POWER_STATE_3V3		3300
 65
 66static inline enum cv1800_pin_io_type cv1800_pin_io_type(const struct cv1800_pin *pin)
 67{
 68	return FIELD_GET(CV1800_PIN_IO_TYPE, pin->pin.flags);
 69};
 70
 71extern const struct pinctrl_ops cv1800_pctrl_ops;
 72extern const struct pinmux_ops cv1800_pmx_ops;
 73extern const struct pinconf_ops cv1800_pconf_ops;
 74extern const struct sophgo_cfg_ops cv1800_cfg_ops;
 75
 76#define CV1800_FUNC_PIN(_id, _power_domain, _type,			\
 77			_mux_area, _mux_offset, _mux_func_max)		\
 78	{								\
 79		.pin = {						\
 80			.id = (_id),					\
 81			.flags = CV1800_PIN_FLAG_IO_TYPE(_type),	\
 82		},							\
 83		.power_domain = (_power_domain),			\
 84		.mux = {						\
 85			.area = (_mux_area),				\
 86			.offset = (_mux_offset),			\
 87			.max = (_mux_func_max),				\
 88		},							\
 89	}
 90
 91#define CV1800_GENERAL_PIN(_id, _power_domain, _type,			\
 92			   _mux_area, _mux_offset, _mux_func_max,	\
 93			   _conf_area, _conf_offset)			\
 94	{								\
 95		.pin = {						\
 96			.id = (_id),					\
 97			.flags = CV1800_PIN_FLAG_IO_TYPE(_type),	\
 98		},							\
 99		.power_domain = (_power_domain),			\
100		.mux = {						\
101			.area = (_mux_area),				\
102			.offset = (_mux_offset),			\
103			.max = (_mux_func_max),				\
104		},							\
105		.conf = {						\
106			.area = (_conf_area),				\
107			.offset = (_conf_offset),			\
108		},							\
109	}
110
111#define CV1800_GENERATE_PIN_MUX2(_id, _power_domain, _type,		\
112				 _mux_area, _mux_offset, _mux_func_max,	\
113				 _mux2_area, _mux2_offset,		\
114				 _mux2_func_max,			\
115				 _conf_area, _conf_offset)		\
116	{								\
117		.pin = {						\
118			.id = (_id),					\
119			.flags = CV1800_PIN_FLAG_IO_TYPE(_type) |	\
120				 CV1800_PIN_HAVE_MUX2,			\
121		},							\
122		.power_domain = (_power_domain),			\
123		.mux = {						\
124			.area = (_mux_area),				\
125			.offset = (_mux_offset),			\
126			.max = (_mux_func_max),				\
127		},							\
128		.mux2 = {						\
129			.area = (_mux2_area),				\
130			.offset = (_mux2_offset),			\
131			.max = (_mux2_func_max),			\
132		},							\
133		.conf = {						\
134			.area = (_conf_area),				\
135			.offset = (_conf_offset),			\
136		},							\
137	}
138
139#endif