1. 根目录:
2. arch
3. arm
4. plat-omap
5. include
6. plat
7. i2c.h

/*
 * Helper module for board specific I2C bus registration
 *
 * Copyright (C) 2009 Nokia Corporation.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */
#ifndef __ASM__ARCH_OMAP_I2C_H
#define __ASM__ARCH_OMAP_I2C_H

#include <linux/i2c.h>
#include <linux/i2c-omap.h>

#if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
extern int omap_register_i2c_bus(int bus_id, u32 clkrate,
				 struct i2c_board_info const *info,
				 unsigned len);
#else
static inline int omap_register_i2c_bus(int bus_id, u32 clkrate,
				 struct i2c_board_info const *info,
				 unsigned len)
{
	return 0;
}
#endif

/**
 * i2c_dev_attr - OMAP I2C controller device attributes for omap_hwmod
 * @fifo_depth: total controller FIFO size (in bytes)
 * @flags: differences in hardware support capability
 *
 * @fifo_depth represents what exists on the hardware, not what is
 * actually configured at runtime by the device driver.
 */
struct omap_i2c_dev_attr {
	u8	fifo_depth;
	u32	flags;
};

void __init omap1_i2c_mux_pins(int bus_id);
void __init omap2_i2c_mux_pins(int bus_id);

struct omap_hwmod;
int omap_i2c_reset(struct omap_hwmod *oh);

#endif /* __ASM__ARCH_OMAP_I2C_H */