tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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};
25
26struct jh7110_gpio_irq_reg {
27 unsigned int is_reg_base;
28 unsigned int ic_reg_base;
29 unsigned int ibe_reg_base;
30 unsigned int iev_reg_base;
31 unsigned int ie_reg_base;
32 unsigned int ris_reg_base;
33 unsigned int mis_reg_base;
34};
35
36struct jh7110_pinctrl_soc_info {
37 const struct pinctrl_pin_desc *pins;
38 unsigned int npins;
39 unsigned int ngpios;
40 unsigned int gc_base;
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 /* generic pinmux */
54 int (*jh7110_set_one_pin_mux)(struct jh7110_pinctrl *sfp,
55 unsigned int pin,
56 unsigned int din, u32 dout,
57 u32 doen, u32 func);
58 /* gpio chip */
59 int (*jh7110_get_padcfg_base)(struct jh7110_pinctrl *sfp,
60 unsigned int pin);
61 void (*jh7110_gpio_irq_handler)(struct irq_desc *desc);
62 int (*jh7110_gpio_init_hw)(struct gpio_chip *gc);
63};
64
65void jh7110_set_gpiomux(struct jh7110_pinctrl *sfp, unsigned int pin,
66 unsigned int din, u32 dout, u32 doen);
67int jh7110_pinctrl_probe(struct platform_device *pdev);
68struct jh7110_pinctrl *jh7110_from_irq_desc(struct irq_desc *desc);
69
70#endif /* __PINCTRL_STARFIVE_JH7110_H__ */