gpio: max732x driver

This adds a driver supporting a family of I2C port expanders from Maxim,
which includes the MAX7319 and MAX7320-7327 chips.

[dbrownell@users.sourceforge.net: minor fixes]
Signed-off-by: Jack Ren <jack.ren@marvell.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Eric Miao 2008-07-25 01:46:14 -07:00 committed by Linus Torvalds
parent 7444a72eff
commit bbcd6d543d
4 changed files with 424 additions and 0 deletions

View file

@ -0,0 +1,19 @@
#ifndef __LINUX_I2C_MAX732X_H
#define __LINUX_I2C_MAX732X_H
/* platform data for the MAX732x 8/16-bit I/O expander driver */
struct max732x_platform_data {
/* number of the first GPIO */
unsigned gpio_base;
void *context; /* param to setup/teardown */
int (*setup)(struct i2c_client *client,
unsigned gpio, unsigned ngpio,
void *context);
int (*teardown)(struct i2c_client *client,
unsigned gpio, unsigned ngpio,
void *context);
};
#endif /* __LINUX_I2C_MAX732X_H */