linux-stable/include/linux/platform_data/i2c-gpio.h
Wolfram Sang 1e9d42194e i2c: gpio: move header to platform_data
This header only contains platform_data. Move it to the proper directory.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: James Hogan <jhogan@kernel.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
2018-05-17 16:27:09 +02:00

34 lines
1.2 KiB
C

/*
* i2c-gpio interface to platform code
*
* Copyright (C) 2007 Atmel 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.
*/
#ifndef _LINUX_I2C_GPIO_H
#define _LINUX_I2C_GPIO_H
/**
* struct i2c_gpio_platform_data - Platform-dependent data for i2c-gpio
* @udelay: signal toggle delay. SCL frequency is (500 / udelay) kHz
* @timeout: clock stretching timeout in jiffies. If the slave keeps
* SCL low for longer than this, the transfer will time out.
* @sda_is_open_drain: SDA is configured as open drain, i.e. the pin
* isn't actively driven high when setting the output value high.
* gpio_get_value() must return the actual pin state even if the
* pin is configured as an output.
* @scl_is_open_drain: SCL is set up as open drain. Same requirements
* as for sda_is_open_drain apply.
* @scl_is_output_only: SCL output drivers cannot be turned off.
*/
struct i2c_gpio_platform_data {
int udelay;
int timeout;
unsigned int sda_is_open_drain:1;
unsigned int scl_is_open_drain:1;
unsigned int scl_is_output_only:1;
};
#endif /* _LINUX_I2C_GPIO_H */