1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 206b4501eSAnatolij Gustschin /* 306b4501eSAnatolij Gustschin * Module: eeprom_93xx46 406b4501eSAnatolij Gustschin * platform description for 93xx46 EEPROMs. 506b4501eSAnatolij Gustschin */ 6e0552573SFabio Estevam #include <linux/gpio/consumer.h> 73ca9b1acSCory Tusar 806b4501eSAnatolij Gustschin struct eeprom_93xx46_platform_data { 906b4501eSAnatolij Gustschin unsigned char flags; 1006b4501eSAnatolij Gustschin #define EE_ADDR8 0x01 /* 8 bit addr. cfg */ 1106b4501eSAnatolij Gustschin #define EE_ADDR16 0x02 /* 16 bit addr. cfg */ 1206b4501eSAnatolij Gustschin #define EE_READONLY 0x08 /* forbid writing */ 1306b4501eSAnatolij Gustschin 14e1379b56SCory Tusar unsigned int quirks; 15e1379b56SCory Tusar /* Single word read transfers only; no sequential read. */ 16e1379b56SCory Tusar #define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ (1 << 0) 17e1379b56SCory Tusar /* Instructions such as EWEN are (addrlen + 2) in length. */ 18e1379b56SCory Tusar #define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH (1 << 1) 19e1379b56SCory Tusar 2006b4501eSAnatolij Gustschin /* 2106b4501eSAnatolij Gustschin * optional hooks to control additional logic 2206b4501eSAnatolij Gustschin * before and after spi transfer. 2306b4501eSAnatolij Gustschin */ 2406b4501eSAnatolij Gustschin void (*prepare)(void *); 2506b4501eSAnatolij Gustschin void (*finish)(void *); 263ca9b1acSCory Tusar struct gpio_desc *select; 2706b4501eSAnatolij Gustschin }; 28