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 /* TODO: move this to include/linux/bug.h */
11 #define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
13 #include <linux/kernel.h>
14 #include <linux/types.h>
16 #define UNIPHIER_PINCTRL_PINMUX_BASE 0x0
17 #define UNIPHIER_PINCTRL_LOAD_PINMUX 0x700
18 #define UNIPHIER_PINCTRL_IECTRL 0xd00
20 #define UNIPHIER_PIN_ATTR_PACKED(iectrl) (iectrl)
22 static inline unsigned int uniphier_pin_get_iectrl(unsigned long data)
28 * struct uniphier_pinctrl_pin - pin data for UniPhier SoC
31 * @data: additional per-pin data
33 struct uniphier_pinctrl_pin {
39 * struct uniphier_pinctrl_group - pin group data for UniPhier SoC
41 * @name: pin group name
42 * @pins: array of pins that belong to the group
43 * @num_pins: number of pins in the group
44 * @muxvals: array of values to be set to pinmux registers
46 struct uniphier_pinctrl_group {
50 const unsigned *muxvals;
54 * struct uniphier_pinctrl_socdata - SoC data for UniPhier pin controller
56 * @pins: array of pin data
57 * @pins_count: number of pin data
58 * @groups: array of pin group data
59 * @groups_count: number of pin group data
60 * @functions: array of pinmux function names
61 * @functions_count: number of pinmux functions
62 * @mux_bits: bit width of each pinmux register
63 * @reg_stride: stride of pinmux register address
64 * @load_pinctrl: if true, LOAD_PINMUX register must be set to one for new
65 * values in pinmux registers to become really effective
67 struct uniphier_pinctrl_socdata {
68 const struct uniphier_pinctrl_pin *pins;
70 const struct uniphier_pinctrl_group *groups;
72 const char * const *functions;
79 #define UNIPHIER_PINCTRL_PIN(a, b) \
82 .data = UNIPHIER_PIN_ATTR_PACKED(b), \
85 #define UNIPHIER_PINCTRL_GROUP(grp) \
89 .num_pins = ARRAY_SIZE(grp##_pins), \
90 .muxvals = grp##_muxvals + \
91 BUILD_BUG_ON_ZERO(ARRAY_SIZE(grp##_pins) != \
92 ARRAY_SIZE(grp##_muxvals)), \
96 * struct uniphier_pinctrl_priv - private data for UniPhier pinctrl driver
98 * @base: base address of the pinctrl device
99 * @socdata: SoC specific data
101 struct uniphier_pinctrl_priv {
103 struct uniphier_pinctrl_socdata *socdata;
106 extern const struct pinctrl_ops uniphier_pinctrl_ops;
108 int uniphier_pinctrl_probe(struct udevice *dev,
109 struct uniphier_pinctrl_socdata *socdata);
111 int uniphier_pinctrl_remove(struct udevice *dev);
113 #endif /* __PINCTRL_UNIPHIER_H__ */