tree f21b06f8eb0c32902dffa285aee8eb665658fe4e
parent 9d4555204e4b06f7e9abcc0f231f55a482b706d6
author Zev Weiss <zev@bewilderbeest.net> 1645753452 +0000
committer Zev Weiss <zev@bewilderbeest.net> 1655324900 +0000

fru-device: add FRUReader EEPROM cache

This doesn't provide a huge benefit currently, but is a preparatory step
for adding support for a wider variety of FRU format parsers.  If
parsers for multiple formats are interested in reading the same areas of
an EEPROM, the caching provided by this abstraction avoids the redundant
bus traffic of all of them re-reading the same bytes over and over.

Tested: on an ASRock Rack romed8hm3, fru-device successfully recognizes
and parses the baseboard FRU EEPROM as it did prior to this patch.

Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Change-Id: I0d774508bc29dbda346309fe7fe42dbdf97bee43