diff options
| author | Rong Chang <rongchang@chromium.org> | 2012-07-16 20:58:06 +0800 |
|---|---|---|
| committer | Gerrit <chrome-bot@google.com> | 2012-07-17 14:41:00 -0700 |
| commit | 9eb416e3159751fd4f83bffc5c693824df7405bf (patch) | |
| tree | adade8d01cd050de600ad975d259e01476993325 | |
| parent | ea1cde3971127c910d4f1c861c3136e38efde8f1 (diff) | |
| download | chrome-ec-9eb416e3159751fd4f83bffc5c693824df7405bf.tar.gz | |
Fix I2C arbitration timeout when chipset is suspended
When system is off or suspended, board_i2c_claim() should not wait
for AP's signal.
Signed-off-by: Rong Chang <rongchang@chromium.org>
BUG=chrome-os-partner:11285
TEST=manual
Put AP into suspend
Type 'i2c r 0x90 0' and see that no arbitration error is obtained.
Change-Id: I22243457fc29bc6c88f413ce0660c700e54f6761
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/27498
| -rw-r--r-- | board/snow/board.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/board/snow/board.c b/board/snow/board.c index 52a4cac8a8..ad951b4c37 100644 --- a/board/snow/board.c +++ b/board/snow/board.c @@ -200,8 +200,9 @@ int board_i2c_claim(int port) if (port != I2C_PORT_HOST) return EC_SUCCESS; - /* If AP is off, we have the bus */ - if (!chipset_in_state(CHIPSET_STATE_ON)) { + /* If AP is off or suspended, we have the bus */ + if (chipset_in_state(CHIPSET_STATE_ANY_OFF | + CHIPSET_STATE_SUSPEND)) { gpio_set_level(GPIO_EC_CLAIM, 0); return EC_SUCCESS; } |