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Driver: isl9237: configures ACOK assertion to switching time

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Isl9237 default setting sets 1.3s debounce time from ACOK assertion
to switching. It's too long for EC being notified AC is present.
Change the value to 150ms.

BUG=none
BRANCH=glados
TEST=In Kunimitsu system, plug in Zinger and capture timestamp when EC
receive AC_PRESENT interrupt, it's reduced by ~1.2s.

Change-Id: I2b027eef816949527138f7b8b53d5408fc823093
Signed-off-by: li feng <li1.feng@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/326844
Commit-Ready: Li1 Feng <li1.feng@intel.com>
Tested-by: Li1 Feng <li1.feng@intel.com>
Reviewed-by: Shawn N <shawnn@chromium.org>
This commit is contained in:
li feng
2016-02-08 17:04:26 -08:00
committed by chrome-bot
parent d790358250
commit c7b96d514d
1 changed files with 3 additions and 1 deletions
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4
driver/charger/isl9237.c
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@@ -235,7 +235,9 @@ int charger_post_init(void)
return rv;
rv = raw_write16(ISL9237_REG_CONTROL2,
reg | ISL9237_C2_PROCHOT_DEBOUNCE_1000);
reg |
ISL9237_C2_PROCHOT_DEBOUNCE_1000 |
ISL9237_C2_ADAPTER_DEBOUNCE_150);
if (rv)
return rv;