pinctrl-starfive-jh7110.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Pinctrl / GPIO driver for StarFive JH7110 SoC
 4 *
 5 * Copyright (C) 2022 StarFive Technology Co., Ltd.
 6 */
 7
 8#ifndef __PINCTRL_STARFIVE_JH7110_H__
 9#define __PINCTRL_STARFIVE_JH7110_H__
10
11#include <linux/pinctrl/pinconf-generic.h>
12#include <linux/pinctrl/pinmux.h>
13
14struct jh7110_pinctrl {
15	struct device *dev;
16	struct gpio_chip gc;
17	struct pinctrl_gpio_range gpios;
18	raw_spinlock_t lock;
19	void __iomem *base;
20	struct pinctrl_dev *pctl;
21	/* register read/write mutex */
22	struct mutex mutex;
23	const struct jh7110_pinctrl_soc_info *info;
24	u32 *saved_regs;
25};
26
27struct jh7110_gpio_irq_reg {
28	unsigned int is_reg_base;
29	unsigned int ic_reg_base;
30	unsigned int ibe_reg_base;
31	unsigned int iev_reg_base;
32	unsigned int ie_reg_base;
33	unsigned int ris_reg_base;
34	unsigned int mis_reg_base;
35};
36
37struct jh7110_pinctrl_soc_info {
38	const struct pinctrl_pin_desc *pins;
39	unsigned int npins;
40	unsigned int ngpios;
41
42	/* gpio dout/doen/din/gpioinput register */
43	unsigned int dout_reg_base;
44	unsigned int dout_mask;
45	unsigned int doen_reg_base;
46	unsigned int doen_mask;
47	unsigned int gpi_reg_base;
48	unsigned int gpi_mask;
49	unsigned int gpioin_reg_base;
50
51	const struct jh7110_gpio_irq_reg *irq_reg;
52
53	unsigned int nsaved_regs;
54
55	/* generic pinmux */
56	int (*jh7110_set_one_pin_mux)(struct jh7110_pinctrl *sfp,
57				      unsigned int pin,
58				      unsigned int din, u32 dout,
59				      u32 doen, u32 func);
60	/* gpio chip */
61	int (*jh7110_get_padcfg_base)(struct jh7110_pinctrl *sfp,
62				      unsigned int pin);
63	void (*jh7110_gpio_irq_handler)(struct irq_desc *desc);
64	int (*jh7110_gpio_init_hw)(struct gpio_chip *gc);
65};
66
67void jh7110_set_gpiomux(struct jh7110_pinctrl *sfp, unsigned int pin,
68			unsigned int din, u32 dout, u32 doen);
69int jh7110_pinctrl_probe(struct platform_device *pdev);
70struct jh7110_pinctrl *jh7110_from_irq_desc(struct irq_desc *desc);
71extern const struct dev_pm_ops jh7110_pinctrl_pm_ops;
72
73#endif /* __PINCTRL_STARFIVE_JH7110_H__ */