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 <[email protected]>
   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 #define STM32_CONFIG_NUM        (STM32_PIN_ANALOG + 1)
  21
  22 /*  package information */
  23 #define STM32MP_PKG_AA          BIT(0)
  24 #define STM32MP_PKG_AB          BIT(1)
  25 #define STM32MP_PKG_AC          BIT(2)
  26 #define STM32MP_PKG_AD          BIT(3)
  27
  28 struct stm32_desc_function {
  29         const char *name;
  30         const unsigned char num;
  31 };
  32
  33 struct stm32_desc_pin {
  34         struct pinctrl_pin_desc pin;
  35         const struct stm32_desc_function functions[STM32_CONFIG_NUM];
  36         const unsigned int pkg;
  37 };
  38
  39 #define STM32_PIN(_pin, ...)                                    \
  40         {                                                       \
  41                 .pin = _pin,                                    \
  42                 .functions = {  \
  43                         __VA_ARGS__},                   \
  44         }
  45
  46 #define STM32_PIN_PKG(_pin, _pkg, ...)                                  \
  47         {                                                       \
  48                 .pin = _pin,                                    \
  49                 .pkg  = _pkg,                           \
  50                 .functions = {  \
  51                         __VA_ARGS__},                   \
  52         }
  53 #define STM32_FUNCTION(_num, _name)             \
  54         [_num] = {                                              \
  55                 .num = _num,                                    \
  56                 .name = _name,                                  \
  57         }
  58
  59 struct stm32_pinctrl_match_data {
  60         const struct stm32_desc_pin *pins;
  61         const unsigned int npins;
  62         bool secure_control;
  63 };
  64
  65 struct stm32_gpio_bank;
  66
  67 int stm32_pctl_probe(struct platform_device *pdev);
  68 void stm32_pmx_get_mode(struct stm32_gpio_bank *bank,
  69                         int pin, u32 *mode, u32 *alt);
  70 int stm32_pinctrl_suspend(struct device *dev);
  71 int stm32_pinctrl_resume(struct device *dev);
  72
  73 #endif /* __PINCTRL_STM32_H */
  74