text: /*
   * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  #ifndef __ASM_ARCH_MXC_MXC_I2C_H__
  #define __ASM_ARCH_MXC_MXC_I2C_H__
  #include <asm/imx-common/iomux-v3.h>
  
  struct i2c_pin_ctrl {
  	iomux_v3_cfg_t i2c_mode;
  	iomux_v3_cfg_t gpio_mode;
  	unsigned char gp;
  	unsigned char spare;
  };
  
  struct i2c_pads_info {
  	struct i2c_pin_ctrl scl;
  	struct i2c_pin_ctrl sda;
  };
  
  /*
   * Information about i2c controller
   * struct mxc_i2c_bus - information about the i2c[x] bus
   * @index: i2c bus index
   * @base: Address of I2C bus controller
   * @driver_data: Flags for different platforms, such as I2C_QUIRK_FLAG.
   * @speed: Speed of I2C bus
   * @pads_info: pinctrl info for this i2c bus, will be used when pinctrl is ok.
   * The following two is only to be compatible with non-DM part.
   * @idle_bus_fn: function to force bus idle
   * @idle_bus_data: parameter for idle_bus_fun
   */
  struct mxc_i2c_bus {
  	/*
  	 * board file can use this index to locate which i2c_pads_info is for
  	 * i2c_idle_bus. When pinmux is implement, this entry can be
  	 * discarded. Here we do not use dev->seq, because we do not want to
  	 * export device to board file.
  	 */
  	int index;
  	ulong base;
  	ulong driver_data;
  	int speed;
  	struct i2c_pads_info *pads_info;
  #ifndef CONFIG_DM_I2C
  	int (*idle_bus_fn)(void *p);
  	void *idle_bus_data;
  #endif
  };
  
  #if defined(CONFIG_MX6QDL)
  #define I2C_PADS(name, scl_i2c, scl_gpio, scl_gp, sda_i2c, sda_gpio, sda_gp) \
  	struct i2c_pads_info mx6q_##name = {		\
  		.scl = {				\
  			.i2c_mode = MX6Q_##scl_i2c,	\
  			.gpio_mode = MX6Q_##scl_gpio,	\
  			.gp = scl_gp,			\
  		},					\
  		.sda = {				\
  			.i2c_mode = MX6Q_##sda_i2c,	\
  			.gpio_mode = MX6Q_##sda_gpio,	\
  			.gp = sda_gp,			\
  		}					\
  	};						\
  	struct i2c_pads_info mx6s_##name = {		\
  		.scl = {				\
  			.i2c_mode = MX6DL_##scl_i2c,	\
  			.gpio_mode = MX6DL_##scl_gpio,	\
  			.gp = scl_gp,			\
  		},					\
  		.sda = {				\
  			.i2c_mode = MX6DL_##sda_i2c,	\
  			.gpio_mode = MX6DL_##sda_gpio,	\
  			.gp = sda_gp,			\
  		}					\
  	};
  
  
  #define I2C_PADS_INFO(name)	\
  	(is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D)) ? \
  					&mx6q_##name : &mx6s_##name
  #endif
  
  int setup_i2c(unsigned i2c_index, int speed, int slave_addr,
  	      struct i2c_pads_info *p);
  void bus_i2c_init(int index, int speed, int slave_addr,
  		int (*idle_bus_fn)(void *p), void *p);
  int force_idle_bus(void *priv);
  int i2c_idle_bus(struct mxc_i2c_bus *i2c_bus);
  #endif
  