This commit adds a basic driver for the TI SN5S330. This driver just
sets up the IC and provides an API to turn on or off the PP2 FET.
BUG=b:67663166, b:67663124
BRANCH=None
TEST=Enable code for zoombini; Flash a board which has the SN5S330
stuffed; Verify that we're able to perform PD negotiation and negotiate
all the way up to 20V.
TEST=Boot only on AC. sysjump to RW, verify that board does not
brownout.
Change-Id: I9c147ee8465eed878843cf902db301d62e8f627e
Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Reviewed-on: https://chromium-review.googlesource.com/722104
Commit-Ready: Aseda Aboagye <aaboagye@chromium.org>
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
