drivers/pinctrl/stm32/pinctrl-stm32.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (C) Maxime Coquelin 2015
   4  * Copyright (C) STMicroelectronics 2017
   5  * Author:  Maxime Coquelin <mcoquelin.stm32@gmail.com>
   6  */
   7 #ifndef __PINCTRL_STM32_H
   8 #define __PINCTRL_STM32_H
   9
  10 #include <linux/pinctrl/pinctrl.h>
  11 #include <linux/pinctrl/pinconf-generic.h>
  12
  13 #define STM32_PIN_NO(x) ((x) << 8)
  14 #define STM32_GET_PIN_NO(x) ((x) >> 8)
  15 #define STM32_GET_PIN_FUNC(x) ((x) & 0xff)
  16
  17 #define STM32_PIN_GPIO          0
  18 #define STM32_PIN_AF(x)         ((x) + 1)
  19 #define STM32_PIN_ANALOG        (STM32_PIN_AF(15) + 1)
  20
  21 /*  package information */
  22 #define STM32MP_PKG_AA          BIT(0)
  23 #define STM32MP_PKG_AB          BIT(1)
  24 #define STM32MP_PKG_AC          BIT(2)
  25 #define STM32MP_PKG_AD          BIT(3)
  26
  27 struct stm32_desc_function {
  28         const char *name;
  29         const unsigned char num;
  30 };
  31
  32 struct stm32_desc_pin {
  33         struct pinctrl_pin_desc pin;
  34         const struct stm32_desc_function *functions;
  35         const unsigned int pkg;
  36 };
  37
  38 #define STM32_PIN(_pin, ...)                                    \
  39         {                                                       \
  40                 .pin = _pin,                                    \
  41                 .functions = (struct stm32_desc_function[]){    \
  42                         __VA_ARGS__, { } },                     \
  43         }
  44
  45 #define STM32_PIN_PKG(_pin, _pkg, ...)                                  \
  46         {                                                       \
  47                 .pin = _pin,                                    \
  48                 .pkg  = _pkg,                           \
  49                 .functions = (struct stm32_desc_function[]){    \
  50                         __VA_ARGS__, { } },                     \
  51         }
  52 #define STM32_FUNCTION(_num, _name)             \
  53         {                                                       \
  54                 .num = _num,                                    \
  55                 .name = _name,                                  \
  56         }
  57
  58 struct stm32_pinctrl_match_data {
  59         const struct stm32_desc_pin *pins;
  60         const unsigned int npins;
  61 };
  62
  63 struct stm32_gpio_bank;
  64
  65 int stm32_pctl_probe(struct platform_device *pdev);
  66 void stm32_pmx_get_mode(struct stm32_gpio_bank *bank,
  67                         int pin, u32 *mode, u32 *alt);
  68 #endif /* __PINCTRL_STM32_H */
  69