gpio: pcf857x: Get rid of legacy platform data

Platform data is a legacy interface to supply device properties
to the driver. In this case we don't have in-kernel users for it.
Moreover it uses plain GPIO numbers which is no-no for a new code.

Just remove it for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

1 files changed, 0 insertions, 45 deletions

diff --git a/include/linux/platform_data/pcf857x.h b/include/linux/platform_data/pcf857x.h
deleted file mode 100644
index 01d0a3ea3aef..000000000000
--- a/include/linux/platform_data/pcf857x.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __LINUX_PCF857X_H
-#define __LINUX_PCF857X_H
-
-/**
- * struct pcf857x_platform_data - data to set up pcf857x driver
- * @gpio_base: number of the chip's first GPIO
- * @n_latch: optional bit-inverse of initial register value; if
- *	you leave this initialized to zero the driver will act
- *	like the chip was just reset
- * @setup: optional callback issued once the GPIOs are valid
- * @teardown: optional callback issued before the GPIOs are invalidated
- * @context: optional parameter passed to setup() and teardown()
- *
- * In addition to the I2C_BOARD_INFO() state appropriate to each chip,
- * the i2c_board_info used with the pcf875x driver must provide its
- * platform_data (pointer to one of these structures) with at least
- * the gpio_base value initialized.
- *
- * The @setup callback may be used with the kind of board-specific glue
- * which hands the (now-valid) GPIOs to other drivers, or which puts
- * devices in their initial states using these GPIOs.
- *
- * These GPIO chips are only "quasi-bidirectional"; read the chip specs
- * to understand the behavior.  They don't have separate registers to
- * record which pins are used for input or output, record which output
- * values are driven, or provide access to input values.  That must be
- * inferred by reading the chip's value and knowing the last value written
- * to it.  If you leave n_latch initialized to zero, that last written
- * value is presumed to be all ones (as if the chip were just reset).
- */
-struct pcf857x_platform_data {
-	unsigned	gpio_base;
-	unsigned	n_latch;
-
-	int		(*setup)(struct i2c_client *client,
-					int gpio, unsigned ngpio,
-					void *context);
-	void		(*teardown)(struct i2c_client *client,
-					int gpio, unsigned ngpio,
-					void *context);
-	void		*context;
-};
-
-#endif /* __LINUX_PCF857X_H */