Current File : //lib/modules/3.10.0-957.21.3.el7.centos.plus.x86_64/source/include/linux/platform_data/i2c-nomadik.h
/*
* Copyright (C) 2009 ST-Ericsson
*
* 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.
*/
#ifndef __PDATA_I2C_NOMADIK_H
#define __PDATA_I2C_NOMADIK_H
enum i2c_freq_mode {
I2C_FREQ_MODE_STANDARD, /* up to 100 Kb/s */
I2C_FREQ_MODE_FAST, /* up to 400 Kb/s */
I2C_FREQ_MODE_HIGH_SPEED, /* up to 3.4 Mb/s */
I2C_FREQ_MODE_FAST_PLUS, /* up to 1 Mb/s */
};
/**
* struct nmk_i2c_controller - client specific controller configuration
* @clk_freq: clock frequency for the operation mode
* @slsu: Slave data setup time in ns.
* The needed setup time for three modes of operation
* are 250ns, 100ns and 10ns respectively thus leading
* to the values of 14, 6, 2 for a 48 MHz i2c clk
* @tft: Tx FIFO Threshold in bytes
* @rft: Rx FIFO Threshold in bytes
* @timeout Slave response timeout(ms)
* @sm: speed mode
*/
struct nmk_i2c_controller {
u32 clk_freq;
unsigned short slsu;
unsigned char tft;
unsigned char rft;
int timeout;
enum i2c_freq_mode sm;
};
#endif /* __PDATA_I2C_NOMADIK_H */
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