pinctrl/visconti/pinctrl-common.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * Copyright (c) 2020 TOSHIBA CORPORATION
0004  * Copyright (c) 2020 Toshiba Electronic Devices & Storage Corporation
0005  * Copyright (c) 2020 Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
0006  */
0007
0008 #ifndef __VISCONTI_PINCTRL_COMMON_H__
0009 #define __VISCONTI_PINCTRL_COMMON_H__
0010
0011 struct pinctrl_pin_desc;
0012
0013 /* PIN */
0014 #define VISCONTI_PINS(pins_name, ...)  \
0015     static const unsigned int pins_name ## _pins[] = { __VA_ARGS__ }
0016
0017 struct visconti_desc_pin {
0018     struct pinctrl_pin_desc pin;
0019     unsigned int dsel_offset;
0020     unsigned int dsel_shift;
0021     unsigned int pude_offset;
0022     unsigned int pudsel_offset;
0023     unsigned int pud_shift;
0024 };
0025
0026 #define VISCONTI_PIN(_pin, dsel, d_sh, pude, pudsel, p_sh)  \
0027 {                               \
0028     .pin = _pin,                        \
0029     .dsel_offset = dsel,                    \
0030     .dsel_shift = d_sh,                 \
0031     .pude_offset = pude,                    \
0032     .pudsel_offset = pudsel,                \
0033     .pud_shift = p_sh,                  \
0034 }
0035
0036 /* Group */
0037 #define VISCONTI_GROUPS(groups_name, ...)   \
0038     static const char * const groups_name ## _grps[] = { __VA_ARGS__ }
0039
0040 struct visconti_mux {
0041     unsigned int offset;
0042     unsigned int mask;
0043     unsigned int val;
0044 };
0045
0046 struct visconti_pin_group {
0047     const char *name;
0048     const unsigned int *pins;
0049     unsigned int nr_pins;
0050     struct visconti_mux mux;
0051 };
0052
0053 #define VISCONTI_PIN_GROUP(group_name, off, msk, v) \
0054 {                           \
0055     .name = __stringify(group_name) "_grp",     \
0056     .pins = group_name ## _pins,            \
0057     .nr_pins = ARRAY_SIZE(group_name ## _pins), \
0058     .mux = {                    \
0059         .offset = off,              \
0060         .mask = msk,                \
0061         .val = v,               \
0062     }                       \
0063 }
0064
0065 /* MUX */
0066 struct visconti_pin_function {
0067     const char *name;
0068     const char * const *groups;
0069     unsigned int nr_groups;
0070 };
0071
0072 #define VISCONTI_PIN_FUNCTION(func)     \
0073 {                       \
0074     .name = #func,              \
0075     .groups = func ## _grps,        \
0076     .nr_groups = ARRAY_SIZE(func ## _grps), \
0077 }
0078
0079 /* chip dependent data */
0080 struct visconti_pinctrl_devdata {
0081     const struct visconti_desc_pin *pins;
0082     unsigned int nr_pins;
0083     const struct visconti_pin_group *groups;
0084     unsigned int nr_groups;
0085     const struct visconti_pin_function *functions;
0086     unsigned int nr_functions;
0087
0088     const struct visconti_mux *gpio_mux;
0089
0090     void (*unlock)(void __iomem *base);
0091 };
0092
0093 int visconti_pinctrl_probe(struct platform_device *pdev,
0094                const struct visconti_pinctrl_devdata *devdata);
0095
0096 #endif /* __VISCONTI_PINCTRL_COMMON_H__ */