2 * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
4 * SPDX-License-Identifier: GPL-2.0+
7 #ifndef __PINCTRL_UNIPHIER_H__
8 #define __PINCTRL_UNIPHIER_H__
10 #include <linux/bug.h>
11 #include <linux/kernel.h>
12 #include <linux/types.h>
14 #define UNIPHIER_PINCTRL_PINMUX_BASE 0x0
15 #define UNIPHIER_PINCTRL_LOAD_PINMUX 0x700
16 #define UNIPHIER_PINCTRL_IECTRL 0xd00
18 #define UNIPHIER_PIN_ATTR_PACKED(iectrl) (iectrl)
20 static inline unsigned int uniphier_pin_get_iectrl(unsigned long data)
26 * struct uniphier_pinctrl_pin - pin data for UniPhier SoC
29 * @data: additional per-pin data
31 struct uniphier_pinctrl_pin {
37 * struct uniphier_pinctrl_group - pin group data for UniPhier SoC
39 * @name: pin group name
40 * @pins: array of pins that belong to the group
41 * @num_pins: number of pins in the group
42 * @muxvals: array of values to be set to pinmux registers
44 struct uniphier_pinctrl_group {
48 const unsigned *muxvals;
52 * struct uniphier_pinctrl_socdata - SoC data for UniPhier pin controller
54 * @pins: array of pin data
55 * @pins_count: number of pin data
56 * @groups: array of pin group data
57 * @groups_count: number of pin group data
58 * @functions: array of pinmux function names
59 * @functions_count: number of pinmux functions
60 * @mux_bits: bit width of each pinmux register
61 * @reg_stride: stride of pinmux register address
62 * @load_pinctrl: if true, LOAD_PINMUX register must be set to one for new
63 * values in pinmux registers to become really effective
65 struct uniphier_pinctrl_socdata {
66 const struct uniphier_pinctrl_pin *pins;
68 const struct uniphier_pinctrl_group *groups;
70 const char * const *functions;
77 #define UNIPHIER_PINCTRL_PIN(a, b) \
80 .data = UNIPHIER_PIN_ATTR_PACKED(b), \
83 #define UNIPHIER_PINCTRL_GROUP(grp) \
87 .num_pins = ARRAY_SIZE(grp##_pins), \
88 .muxvals = grp##_muxvals + \
89 BUILD_BUG_ON_ZERO(ARRAY_SIZE(grp##_pins) != \
90 ARRAY_SIZE(grp##_muxvals)), \
94 * struct uniphier_pinctrl_priv - private data for UniPhier pinctrl driver
96 * @base: base address of the pinctrl device
97 * @socdata: SoC specific data
99 struct uniphier_pinctrl_priv {
101 struct uniphier_pinctrl_socdata *socdata;
104 extern const struct pinctrl_ops uniphier_pinctrl_ops;
106 int uniphier_pinctrl_probe(struct udevice *dev,
107 struct uniphier_pinctrl_socdata *socdata);
109 int uniphier_pinctrl_remove(struct udevice *dev);
111 #endif /* __PINCTRL_UNIPHIER_H__ */