drivers/pinctrl/sprd/pinctrl-sprd.h

   1 /*
   2  * Driver header file for pin controller driver
   3  * Copyright (C) 2017 Spreadtrum  - http://www.spreadtrum.com
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * version 2 as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  */
  14
  15 #ifndef __PINCTRL_SPRD_H__
  16 #define __PINCTRL_SPRD_H__
  17
  18 struct platform_device;
  19
  20 #define NUM_OFFSET      (20)
  21 #define TYPE_OFFSET     (16)
  22 #define BIT_OFFSET      (8)
  23 #define WIDTH_OFFSET    (4)
  24
  25 #define SPRD_PIN_INFO(num, type, offset, width, reg)    \
  26                 (((num) & 0xFFF) << NUM_OFFSET |        \
  27                  ((type) & 0xF) << TYPE_OFFSET |        \
  28                  ((offset) & 0xFF) << BIT_OFFSET |      \
  29                  ((width) & 0xF) << WIDTH_OFFSET |      \
  30                  ((reg) & 0xF))
  31
  32 #define SPRD_PINCTRL_PIN(pin)   SPRD_PINCTRL_PIN_DATA(pin, #pin)
  33
  34 #define SPRD_PINCTRL_PIN_DATA(a, b)                             \
  35         {                                                       \
  36                 .name = b,                                      \
  37                 .num = (((a) >> NUM_OFFSET) & 0xfff),           \
  38                 .type = (((a) >> TYPE_OFFSET) & 0xf),           \
  39                 .bit_offset = (((a) >> BIT_OFFSET) & 0xff),     \
  40                 .bit_width = ((a) >> WIDTH_OFFSET & 0xf),       \
  41                 .reg = ((a) & 0xf)                              \
  42         }
  43
  44 enum pin_type {
  45         GLOBAL_CTRL_PIN,
  46         COMMON_PIN,
  47         MISC_PIN,
  48 };
  49
  50 struct sprd_pins_info {
  51         const char *name;
  52         unsigned int num;
  53         enum pin_type type;
  54
  55         /* for global control pins configuration */
  56         unsigned long bit_offset;
  57         unsigned long bit_width;
  58         unsigned int reg;
  59 };
  60
  61 int sprd_pinctrl_core_probe(struct platform_device *pdev,
  62                             struct sprd_pins_info *sprd_soc_pin_info,
  63                             int pins_cnt);
  64 int sprd_pinctrl_remove(struct platform_device *pdev);
  65 void sprd_pinctrl_shutdown(struct platform_device *pdev);
  66
  67 #endif /* __PINCTRL_SPRD_H__ */