diff options
| author | Xin Ji <xji@analogixsemi.com> | 2022-01-19 15:01:26 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2022-02-08 07:13:16 +0000 |
| commit | edbca223efd0bdc6c734735430144e95024dd4d0 (patch) | |
| tree | 7038acdb30bcd6dfbb338ffd73bac99c1ec36713 /driver/tcpm/anx7447.c | |
| parent | 80e36d02d24d30030f4fff6774916dd5b71090cc (diff) | |
| download | chrome-ec-edbca223efd0bdc6c734735430144e95024dd4d0.tar.gz | |
tcpm: anx7447: Set vbus & vconn ADC threshold
To avoid report VBUS_VOLTAGE_ALARM_HI while no device attached, set VBUS
max threshold to around 25V. Set vconn maximum voltage threshold to 6V.
BUG=b:153989733, b:214893572
BRANCH=none
TEST=Tested on STM32 EVB board
Change-Id: Ieea3789cbb89a3c02a881cc6f1eda892072e273d
Signed-off-by: Xin Ji <xji@analogixsemi.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3400770
Reviewed-by: Diana Z <dzigterman@chromium.org>
Commit-Queue: Eric Yilun Lin <yllin@google.com>
Tested-by: Eric Yilun Lin <yllin@google.com>
Diffstat (limited to 'driver/tcpm/anx7447.c')
| -rw-r--r-- | driver/tcpm/anx7447.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/driver/tcpm/anx7447.c b/driver/tcpm/anx7447.c index 70b51feb07..93631d2c5c 100644 --- a/driver/tcpm/anx7447.c +++ b/driver/tcpm/anx7447.c @@ -346,14 +346,10 @@ static int anx7447_init(int port) if (rv) return rv; - /* - * Specifically disable voltage alarms, as VBUS_VOLTAGE_ALARM_HI may - * trigger repeatedly despite being masked (b/153989733) - */ - rv = tcpc_update16(port, TCPC_REG_POWER_CTRL, - TCPC_REG_POWER_CTRL_VBUS_VOL_MONITOR_DIS, MASK_SET); - if (rv) - return rv; + /* Set VBUS_VOLTAGE_ALARM_HI threshold */ + RETURN_ERROR(tcpc_write16(port, TCPC_REG_VBUS_VOLTAGE_ALARM_HI_CFG, 0x3FF)); + /* Set VCONN_VOLTAGE_ALARM_HI threshold to 6V */ + RETURN_ERROR(tcpc_write16(port, VCONN_VOLTAGE_ALARM_HI_CFG, 0xF0)); /* ADC enable, use to monitor VBUS voltage */ rv = tcpc_read(port, ANX7447_REG_ADC_CTRL_1, ®); |