106b4501eSAnatolij Gustschin /* 206b4501eSAnatolij Gustschin * Module: eeprom_93xx46 306b4501eSAnatolij Gustschin * platform description for 93xx46 EEPROMs. 406b4501eSAnatolij Gustschin */ 5e0552573SFabio Estevam #include <linux/gpio/consumer.h> 63ca9b1acSCory Tusar 706b4501eSAnatolij Gustschin struct eeprom_93xx46_platform_data { 806b4501eSAnatolij Gustschin unsigned char flags; 906b4501eSAnatolij Gustschin #define EE_ADDR8 0x01 /* 8 bit addr. cfg */ 1006b4501eSAnatolij Gustschin #define EE_ADDR16 0x02 /* 16 bit addr. cfg */ 1106b4501eSAnatolij Gustschin #define EE_READONLY 0x08 /* forbid writing */ 1206b4501eSAnatolij Gustschin 13e1379b56SCory Tusar unsigned int quirks; 14e1379b56SCory Tusar /* Single word read transfers only; no sequential read. */ 15e1379b56SCory Tusar #define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ (1 << 0) 16e1379b56SCory Tusar /* Instructions such as EWEN are (addrlen + 2) in length. */ 17e1379b56SCory Tusar #define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH (1 << 1) 18e1379b56SCory Tusar 1906b4501eSAnatolij Gustschin /* 2006b4501eSAnatolij Gustschin * optional hooks to control additional logic 2106b4501eSAnatolij Gustschin * before and after spi transfer. 2206b4501eSAnatolij Gustschin */ 2306b4501eSAnatolij Gustschin void (*prepare)(void *); 2406b4501eSAnatolij Gustschin void (*finish)(void *); 253ca9b1acSCory Tusar struct gpio_desc *select; 2606b4501eSAnatolij Gustschin }; 27