1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Module: eeprom_93xx46 4 * platform description for 93xx46 EEPROMs. 5 */ 6 #include <linux/gpio/consumer.h> 7 8 struct eeprom_93xx46_platform_data { 9 unsigned char flags; 10 #define EE_ADDR8 0x01 /* 8 bit addr. cfg */ 11 #define EE_ADDR16 0x02 /* 16 bit addr. cfg */ 12 #define EE_READONLY 0x08 /* forbid writing */ 13 14 unsigned int quirks; 15 /* Single word read transfers only; no sequential read. */ 16 #define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ (1 << 0) 17 /* Instructions such as EWEN are (addrlen + 2) in length. */ 18 #define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH (1 << 1) 19 20 /* 21 * optional hooks to control additional logic 22 * before and after spi transfer. 23 */ 24 void (*prepare)(void *); 25 void (*finish)(void *); 26 struct gpio_desc *select; 27 }; 28