Mulin Chao aa2db44011 nuc: Add state machines to handle i2c master stall bus and call i2c_xfer again.
Create two state machines SMB_WRITE_SUSPEND and SMB_READ_SUSPEND to handle i2c
master stall bus and call i2c_xfer again. Notice we should disable i2c
interrupt since cannot read/write SDA reg to clear interrupt pending bit.

Modified drivers:
1. i2c.c: Modified to handle calling i2c_xfer twice or more.

BUG=chrome-os-partner:34346
TEST=make buildall -j; test nuvoton IC specific drivers
BRANCH=none

Change-Id: I781f6f8227867ea9c0e265b3064f48602c0f5f07
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Reviewed-on: https://chromium-review.googlesource.com/309381
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2015-11-01 10:08:50 -08:00
2015-10-30 23:02:23 -07:00
2015-10-25 07:40:31 -07:00
2015-05-07 00:00:47 +00:00
2015-08-15 01:32:39 +00:00
2015-10-30 23:02:23 -07:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2014-05-15 05:20:14 +00:00

For an overview of the Embedded Controller firmware, refer to

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