mirror of https://gitee.com/openkylin/linux.git
28 lines
776 B
C
28 lines
776 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Module: eeprom_93xx46
|
|
* platform description for 93xx46 EEPROMs.
|
|
*/
|
|
#include <linux/gpio/consumer.h>
|
|
|
|
struct eeprom_93xx46_platform_data {
|
|
unsigned char flags;
|
|
#define EE_ADDR8 0x01 /* 8 bit addr. cfg */
|
|
#define EE_ADDR16 0x02 /* 16 bit addr. cfg */
|
|
#define EE_READONLY 0x08 /* forbid writing */
|
|
|
|
unsigned int quirks;
|
|
/* Single word read transfers only; no sequential read. */
|
|
#define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ (1 << 0)
|
|
/* Instructions such as EWEN are (addrlen + 2) in length. */
|
|
#define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH (1 << 1)
|
|
|
|
/*
|
|
* optional hooks to control additional logic
|
|
* before and after spi transfer.
|
|
*/
|
|
void (*prepare)(void *);
|
|
void (*finish)(void *);
|
|
struct gpio_desc *select;
|
|
};
|