diff options
| author | Vijay Hiremath <vijay.p.hiremath@intel.com> | 2016-01-14 13:48:59 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-01-15 00:36:52 -0800 |
| commit | dda6f888dc597d7e3be3e75b65e20690ebfc26c6 (patch) | |
| tree | f8c40ad6a6991f92154c59e44d0ef6b3514a5a84 | |
| parent | 77abb5072e8a674d5908dd2366583148858e56c9 (diff) | |
| download | chrome-ec-dda6f888dc597d7e3be3e75b65e20690ebfc26c6.tar.gz | |
Driver: ISL9237: Configure Prochot# Debounce time to maximum
Configured the Prochot# Debounce time to maximum (1ms) to avoid false
triggers on the Prochot pin.
BUG=none
TEST=Manually tested on Kunimitsu, Prochot pin in not triggered when
the battery current ripples or the adapter current ripples are
less than 1ms.
BRANCH=none
Change-Id: I3ccebcfbced2285dcacff8a3750090c0500a102c
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/322292
Commit-Ready: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Tested-by: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Reviewed-by: Kevin K Wong <kevin.k.wong@intel.com>
Reviewed-by: Shawn N <shawnn@chromium.org>
| -rw-r--r-- | driver/charger/isl9237.c | 13 | ||||
| -rw-r--r-- | driver/charger/isl9237.h | 1 |
2 files changed, 13 insertions, 1 deletions
diff --git a/driver/charger/isl9237.c b/driver/charger/isl9237.c index 2d8c78190b..7ac3cdbd73 100644 --- a/driver/charger/isl9237.c +++ b/driver/charger/isl9237.c @@ -226,6 +226,19 @@ int charger_post_init(void) return rv; #endif + /* + * [10:9]: Prochot# Debounce time + * 11b: 1ms + */ + rv = raw_read16(ISL9237_REG_CONTROL2, ®); + if (rv) + return rv; + + rv = raw_write16(ISL9237_REG_CONTROL2, + reg | ISL9237_C2_PROCHOT_DEBOUNCE_1000); + if (rv) + return rv; + rv = charger_get_option(®); if (rv) return rv; diff --git a/driver/charger/isl9237.h b/driver/charger/isl9237.h index 4bca168ff4..27a3bab377 100644 --- a/driver/charger/isl9237.h +++ b/driver/charger/isl9237.h @@ -26,7 +26,6 @@ #define ISL9237_REG_OTG_CURRENT 0x4a #define ISL9237_REG_MANUFACTURER_ID 0xfe #define ISL9237_REG_DEVICE_ID 0xff -#define ISL9237_REG_PROCHOT_TIME 0x39 #define ISL9237_REG_CONTROL0 0x39 /* Sense resistor default values in mOhm */ |