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 unsigned int gc_base;
42
43 /* gpio dout/doen/din/gpioinput register */
44 unsigned int dout_reg_base;
45 unsigned int dout_mask;
46 unsigned int doen_reg_base;
47 unsigned int doen_mask;
48 unsigned int gpi_reg_base;
49 unsigned int gpi_mask;
50 unsigned int gpioin_reg_base;
51
52 const struct jh7110_gpio_irq_reg *irq_reg;
53
54 unsigned int nsaved_regs;
55
56 /* generic pinmux */
57 int (*jh7110_set_one_pin_mux)(struct jh7110_pinctrl *sfp,
58 unsigned int pin,
59 unsigned int din, u32 dout,
60 u32 doen, u32 func);
61 /* gpio chip */
62 int (*jh7110_get_padcfg_base)(struct jh7110_pinctrl *sfp,
63 unsigned int pin);
64 void (*jh7110_gpio_irq_handler)(struct irq_desc *desc);
65 int (*jh7110_gpio_init_hw)(struct gpio_chip *gc);
66};
67
68void jh7110_set_gpiomux(struct jh7110_pinctrl *sfp, unsigned int pin,
69 unsigned int din, u32 dout, u32 doen);
70int jh7110_pinctrl_probe(struct platform_device *pdev);
71struct jh7110_pinctrl *jh7110_from_irq_desc(struct irq_desc *desc);
72extern const struct dev_pm_ops jh7110_pinctrl_pm_ops;
73
74#endif /* __PINCTRL_STARFIVE_JH7110_H__ */
75

source code of linux/drivers/pinctrl/starfive/pinctrl-starfive-jh7110.h