include/linux/platform_data/pca953x.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LINUX_PCA953X_H
   3 #define _LINUX_PCA953X_H
   4
   5 #include <linux/types.h>
   6 #include <linux/i2c.h>
   7
   8 /* platform data for the PCA9539 16-bit I/O expander driver */
   9
  10 struct pca953x_platform_data {
  11         /* number of the first GPIO */
  12         unsigned        gpio_base;
  13
  14         /* initial polarity inversion setting */
  15         u32             invert;
  16
  17         /* interrupt base */
  18         int             irq_base;
  19
  20         void            *context;       /* param to setup/teardown */
  21
  22         int             (*setup)(struct i2c_client *client,
  23                                 unsigned gpio, unsigned ngpio,
  24                                 void *context);
  25         int             (*teardown)(struct i2c_client *client,
  26                                 unsigned gpio, unsigned ngpio,
  27                                 void *context);
  28         const char      *const *names;
  29 };
  30
  31 #endif /* _LINUX_PCA953X_H */