LXR linux/drivers/pinctrl/aspeed/pinctrl-aspeed.h

   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 */
  23struct 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
  38struct 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 */
  51int aspeed_pinctrl_get_groups_count(struct pinctrl_dev *pctldev);
  52const char *aspeed_pinctrl_get_group_name(struct pinctrl_dev *pctldev,
  53                unsigned int group);
  54int aspeed_pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
  55                unsigned int group, const unsigned int **pins,
  56                unsigned int *npins);
  57void aspeed_pinctrl_pin_dbg_show(struct pinctrl_dev *pctldev,
  58                struct seq_file *s, unsigned int offset);
  59int aspeed_pinmux_get_fn_count(struct pinctrl_dev *pctldev);
  60const char *aspeed_pinmux_get_fn_name(struct pinctrl_dev *pctldev,
  61                unsigned int function);
  62int aspeed_pinmux_get_fn_groups(struct pinctrl_dev *pctldev,
  63                unsigned int function, const char * const **groups,
  64                unsigned int * const num_groups);
  65int aspeed_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned int function,
  66                unsigned int group);
  67int aspeed_gpio_request_enable(struct pinctrl_dev *pctldev,
  68                struct pinctrl_gpio_range *range,
  69                unsigned int offset);
  70int aspeed_pinctrl_probe(struct platform_device *pdev,
  71                struct pinctrl_desc *pdesc,
  72                struct aspeed_pinctrl_data *pdata);
  73int aspeed_pin_config_get(struct pinctrl_dev *pctldev, unsigned int offset,
  74                unsigned long *config);
  75int aspeed_pin_config_set(struct pinctrl_dev *pctldev, unsigned int offset,
  76                unsigned long *configs, unsigned int num_configs);
  77int aspeed_pin_config_group_get(struct pinctrl_dev *pctldev,
  78                unsigned int selector,
  79                unsigned long *config);
  80int 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 */
  86