LXR linux/include/linux/platform

   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
  10struct 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 */
  32