Shawn Nematbakhsh 395a284004 pd: Add error handling for pd_send_request_msg()
If we have already completed negotiation as a sink and
pd_send_request_msg() fails, issue a soft reset so we don't remain
indefinitely at our previously negotiated voltage.

BUG=chrome-os-partner:50346
BRANCH=glados
TEST=Manual on chell. Attach zinger to port 1, then attach zinger to
port 2. Verify that port 1 negotiated to 20V. Detach port 1 and verify
port 2 successfully negotiates to 20V and begins charging.

Change-Id: I4f8ff9a1e3ef49858f6ae5c3ccb5b5d4d847e2d1
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/332642
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
2016-03-14 20:11:28 -07:00
2016-03-14 20:11:25 -07:00
2016-03-11 15:17:28 -08:00
2015-05-07 00:00:47 +00:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2015-12-08 20:05:05 -08:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit

For instructions on building from source, refer to

http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly
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