Shawn Nematbakhsh d43ced8c8d mec1322: i2c: Unwedge controller on transaction timeout ...

If clk or dat aren't pulled up for an extended period, the i2c
controller may get into a wedged state that requires a controller reset
to recover from. There are no outward signs of the controller being in
such a state, other than transaction timeouts. Therefore, on a
transaction timeout, reset the controller.

BUG=chrome-os-partner:43270
TEST=Manual on glados:
- Run `gpioset PP3300_USB_PD_EN 0` on PD console and wait several seconds
- Run `gpioset PP3300_USB_PD_EN 1` on PD console
- Run `i2cscan` and verify all ports / devices ack
- Repeat above several times
BRANCH=None

Change-Id: I2ae42762ee6c961224ff50309a448475b67854b5
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/295404
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

2015-08-26 00:17:46 +00:00

..

g

cr50: add plumbing for signing CR50 RO images

2015-08-25 21:31:33 +00:00

host

tasks: Remove most task_start_called() calls.

2015-08-01 02:52:37 +00:00

it83xx

nds32: use INT_MASK instead of GIE

2015-08-20 01:37:56 +00:00

lm4

lm4: Add debug output for overlapping HCs.

2015-08-05 19:40:13 +00:00

mec1322

mec1322: i2c: Unwedge controller on transaction timeout

2015-08-26 00:17:46 +00:00

npcx

nuc:

2015-08-19 08:10:27 +00:00

nrf51

cleanup: GPIO: Use common macro for converting mask to GPIO

2015-07-19 20:38:37 +00:00

stm32

USART: Add DMA based receiver

2015-08-24 19:08:35 +00:00