These pinconf/pinctrl definitions will be used by the next patches. The definitions was taken from public headers of linux-7.0. It's used by several linux pinctrl drivers, so it might be helpful for U-Boot as well.
Pinconf definitions are placed near the corresponding U-Boot definitions in file include/dm/pinctrl.h. Pin/group/function definitions stored within the same path as in linux (include/linux/pinctrl/pinctrl.h). Signed-off-by: Mikhail Kshevetskiy <[email protected]> --- include/dm/pinctrl.h | 28 +++++++++++++ include/linux/pinctrl/pinctrl.h | 74 +++++++++++++++++++++++++++++++++ 2 files changed, 102 insertions(+) create mode 100644 include/linux/pinctrl/pinctrl.h diff --git a/include/dm/pinctrl.h b/include/dm/pinctrl.h index e41baea6200..36db47802c7 100644 --- a/include/dm/pinctrl.h +++ b/include/dm/pinctrl.h @@ -481,6 +481,34 @@ enum pin_config_param { PIN_CONFIG_MAX = 255, /* 0xFF */ }; +/* + * Helpful configuration macro to be used in tables etc. + */ +#define PIN_CONF_PACKED(p, a) ((a << 8) | ((unsigned long) p & 0xffUL)) + +/* + * The following inlines stuffs a configuration parameter and data value + * into and out of an unsigned long argument, as used by the generic pin config + * system. We put the parameter in the lower 8 bits and the argument in the + * upper 24 bits. + */ + +static inline enum pin_config_param pinconf_to_config_param(unsigned long config) +{ + return (enum pin_config_param) (config & 0xffUL); +} + +static inline u32 pinconf_to_config_argument(unsigned long config) +{ + return (u32) ((config >> 8) & 0xffffffUL); +} + +static inline unsigned long pinconf_to_config_packed(enum pin_config_param param, + u32 argument) +{ + return PIN_CONF_PACKED(param, argument); +} + #if CONFIG_IS_ENABLED(PINCTRL_GENERIC) /** * pinctrl_generic_set_state() - Generic set_state operation diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h new file mode 100644 index 00000000000..32b56e0ab18 --- /dev/null +++ b/include/linux/pinctrl/pinctrl.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __LINUX_PINCTRL_PINCTRL_H +#define __LINUX_PINCTRL_PINCTRL_H + +#include <linux/types.h> + +/** + * struct pingroup - provides information on pingroup + * @name: a name for pingroup + * @pins: an array of pins in the pingroup + * @npins: number of pins in the pingroup + */ +struct pingroup { + const char *name; + const unsigned int *pins; + size_t npins; +}; + +/* Convenience macro to define a single named or anonymous pingroup */ +#define PINCTRL_PINGROUP(_name, _pins, _npins) \ +(struct pingroup) { \ + .name = _name, \ + .pins = _pins, \ + .npins = _npins, \ +} + +/** + * struct pinctrl_pin_desc - boards/machines provide information on their + * pins, pads or other muxable units in this struct + * @number: unique pin number from the global pin number space + * @name: a name for this pin + * @drv_data: driver-defined per-pin data. pinctrl core does not touch this + */ +struct pinctrl_pin_desc { + unsigned int number; + const char *name; + void *drv_data; +}; + +/* Convenience macro to define a single named or anonymous pin descriptor */ +#define PINCTRL_PIN(_number, _name) \ +(struct pinctrl_pin_desc) { \ + .number = _number, \ + .name = _name, \ +} + +#define PINCTRL_PIN_ANON(_number) \ +(struct pinctrl_pin_desc) { \ + .number = _number, \ +} + +/** + * struct pinfunction - Description about a function + * @name: Name of the function + * @groups: An array of groups for this function + * @ngroups: Number of groups in @groups + * @flags: Additional pin function flags + */ +struct pinfunction { + const char *name; + const char * const *groups; + size_t ngroups; +}; + +/* Convenience macro to define a single named pinfunction */ +#define PINCTRL_PINFUNCTION(_name, _groups, _ngroups) \ +(struct pinfunction) { \ + .name = (_name), \ + .groups = (_groups), \ + .ngroups = (_ngroups), \ +} + +#endif /* __LINUX_PINCTRL_PINCTRL_H */ -- 2.53.0
