eeprom: at24: remove at24_platform_data

There are no more users of at24_platform_data. Remove the relevant
header and modify the driver code to not use it anymore.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

include/linux/platform_data/at24.h

@@ -1,60 +0,0 @@
-/*
- * at24.h - platform_data for the at24 (generic eeprom) driver
- * (C) Copyright 2008 by Pengutronix
- * (C) Copyright 2012 by Wolfram Sang
- * same license as the driver
- */
-
-#ifndef _LINUX_AT24_H
-#define _LINUX_AT24_H
-
-#include <linux/types.h>
-#include <linux/nvmem-consumer.h>
-#include <linux/bitops.h>
-
-/**
- * struct at24_platform_data - data to set up at24 (generic eeprom) driver
- * @byte_len: size of eeprom in byte
- * @page_size: number of byte which can be written in one go
- * @flags: tunable options, check AT24_FLAG_* defines
- * @setup: an optional callback invoked after eeprom is probed; enables kernel
-	code to access eeprom via nvmem, see example
- * @context: optional parameter passed to setup()
- *
- * If you set up a custom eeprom type, please double-check the parameters.
- * Especially page_size needs extra care, as you risk data loss if your value
- * is bigger than what the chip actually supports!
- *
- * An example in pseudo code for a setup() callback:
- *
- * void get_mac_addr(struct nvmem_device *nvmem, void *context)
- * {
- *	u8 *mac_addr = ethernet_pdata->mac_addr;
- *	off_t offset = context;
- *
- *	// Read MAC addr from EEPROM
- *	if (nvmem_device_read(nvmem, offset, ETH_ALEN, mac_addr) == ETH_ALEN)
- *		pr_info("Read MAC addr from EEPROM: %pM\n", mac_addr);
- * }
- *
- * This function pointer and context can now be set up in at24_platform_data.
- */
-
-struct at24_platform_data {
-	u32		byte_len;		/* size (sum of all addr) */
-	u16		page_size;		/* for writes */
-	u8		flags;
-#define AT24_FLAG_ADDR16	BIT(7)	/* address pointer is 16 bit */
-#define AT24_FLAG_READONLY	BIT(6)	/* sysfs-entry will be read-only */
-#define AT24_FLAG_IRUGO		BIT(5)	/* sysfs-entry will be world-readable */
-#define AT24_FLAG_TAKE8ADDR	BIT(4)	/* take always 8 addresses (24c00) */
-#define AT24_FLAG_SERIAL	BIT(3)	/* factory-programmed serial number */
-#define AT24_FLAG_MAC		BIT(2)	/* factory-programmed mac address */
-#define AT24_FLAG_NO_RDROL	BIT(1)	/* does not auto-rollover reads to */
-					/* the next slave address */
-
-	void		(*setup)(struct nvmem_device *nvmem, void *context);
-	void		*context;
-};
-
-#endif /* _LINUX_AT24_H */