root/drivers/pinctrl/aspeed/pinctrl-aspeed.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (C) 2016 IBM Corp.
   4  */
   5 
   6 #ifndef PINCTRL_ASPEED
   7 #define PINCTRL_ASPEED
   8 
   9 #include <linux/pinctrl/pinctrl.h>
  10 #include <linux/pinctrl/pinmux.h>
  11 #include <linux/pinctrl/pinconf.h>
  12 #include <linux/pinctrl/pinconf-generic.h>
  13 #include <linux/regmap.h>
  14 
  15 #include "pinmux-aspeed.h"
  16 
  17 /**
  18  * @param The pinconf parameter type
  19  * @pins The pin range this config struct covers, [low, high]
  20  * @reg The register housing the configuration bits
  21  * @mask The mask to select the bits of interest in @reg
  22  */
  23 struct aspeed_pin_config {
  24         enum pin_config_param param;
  25         unsigned int pins[2];
  26         unsigned int reg;
  27         u8 bit;
  28         u8 value;
  29 };
  30 
  31 #define ASPEED_PINCTRL_PIN(name_) \
  32         [name_] = { \
  33                 .number = name_, \
  34                 .name = #name_, \
  35                 .drv_data = (void *) &(PIN_SYM(name_)) \
  36         }
  37 
  38 struct aspeed_pinctrl_data {
  39         struct regmap *scu;
  40 
  41         const struct pinctrl_pin_desc *pins;
  42         const unsigned int npins;
  43 
  44         const struct aspeed_pin_config *configs;
  45         const unsigned int nconfigs;
  46 
  47         struct aspeed_pinmux_data pinmux;
  48 };
  49 
  50 /* Aspeed pinctrl helpers */
  51 int aspeed_pinctrl_get_groups_count(struct pinctrl_dev *pctldev);
  52 const char *aspeed_pinctrl_get_group_name(struct pinctrl_dev *pctldev,
  53                 unsigned int group);
  54 int aspeed_pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
  55                 unsigned int group, const unsigned int **pins,
  56                 unsigned int *npins);
  57 void aspeed_pinctrl_pin_dbg_show(struct pinctrl_dev *pctldev,
  58                 struct seq_file *s, unsigned int offset);
  59 int aspeed_pinmux_get_fn_count(struct pinctrl_dev *pctldev);
  60 const char *aspeed_pinmux_get_fn_name(struct pinctrl_dev *pctldev,
  61                 unsigned int function);
  62 int aspeed_pinmux_get_fn_groups(struct pinctrl_dev *pctldev,
  63                 unsigned int function, const char * const **groups,
  64                 unsigned int * const num_groups);
  65 int aspeed_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned int function,
  66                 unsigned int group);
  67 int aspeed_gpio_request_enable(struct pinctrl_dev *pctldev,
  68                 struct pinctrl_gpio_range *range,
  69                 unsigned int offset);
  70 int aspeed_pinctrl_probe(struct platform_device *pdev,
  71                 struct pinctrl_desc *pdesc,
  72                 struct aspeed_pinctrl_data *pdata);
  73 int aspeed_pin_config_get(struct pinctrl_dev *pctldev, unsigned int offset,
  74                 unsigned long *config);
  75 int aspeed_pin_config_set(struct pinctrl_dev *pctldev, unsigned int offset,
  76                 unsigned long *configs, unsigned int num_configs);
  77 int aspeed_pin_config_group_get(struct pinctrl_dev *pctldev,
  78                 unsigned int selector,
  79                 unsigned long *config);
  80 int aspeed_pin_config_group_set(struct pinctrl_dev *pctldev,
  81                 unsigned int selector,
  82                 unsigned long *configs,
  83                 unsigned int num_configs);
  84 
  85 #endif /* PINCTRL_ASPEED */