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* i2c_eeprom: include <linux/err.h> to fix build errorMasahiro Yamada2015-01-05-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/misc/i2c_eeprom.c fails to build unless CONFIG_FIT_SIGNATURE is defined. CC drivers/misc/i2c_eeprom.o drivers/misc/i2c_eeprom.c: In function 'i2c_eeprom_read': drivers/misc/i2c_eeprom.c:15:10: error: 'ENODEV' undeclared (first use in this function) drivers/misc/i2c_eeprom.c:15:10: note: each undeclared identifier is reported only once for each function it appears in drivers/misc/i2c_eeprom.c: In function 'i2c_eeprom_write': drivers/misc/i2c_eeprom.c:21:10: error: 'ENODEV' undeclared (first use in this function) drivers/misc/i2c_eeprom.c:22:1: warning: control reaches end of non-void function [-Wreturn-type] drivers/misc/i2c_eeprom.c: In function 'i2c_eeprom_read': drivers/misc/i2c_eeprom.c:16:1: warning: control reaches end of non-void function [-Wreturn-type] make[2]: *** [drivers/misc/i2c_eeprom.o] Error 1 make[1]: *** [drivers/misc] Error 2 make: *** [drivers] Error 2 By the way, Sandbox (enabling CONFIG_FIT_SIGNATURE) is luckily working depending on it. Sandbox includes include/asm-generic/errno.h from include/errno.h from include/u-boot/rsa-checksum.h from include/image.h from include/common.h from drivers/misc/i2c_eeprom.c Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: Add a simple EEPROM driverSimon Glass2014-12-11-0/+51
There seem to be a few EEPROM drivers around - perhaps we should have a single standard one? This simple driver is used for sandbox testing, but could be pressed into more active service. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>