diff options
| author | Caveh Jalali <caveh@chromium.org> | 2021-06-23 21:27:24 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-06-25 20:58:18 +0000 |
| commit | 917f3aa53a336bd89cc3bf7ed7b1508a0473967a (patch) | |
| tree | 4a1222347a8aa89d732c1beaf7ac22bd3046c2f9 /driver/tcpm | |
| parent | 65fd96d4c1900e31d6296e768743f421953fd026 (diff) | |
| download | chrome-ec-917f3aa53a336bd89cc3bf7ed7b1508a0473967a.tar.gz | |
TCPM: Add new LPM bypass TCPC accessors
This adds a set of light-weight TCPC register access functions for
special cases where the caller arranges for the TCPC to be accessible
and the complexity of fully taking a TCPC out of LPM mode is not
desirable. A typical use case is for alert service routines to be able
to peek at a TCPCs alert register to determine if further processing is
requested.
BRANCH=none
BUG=b:191531291
TEST=buildall passes
Change-Id: Ib5c9add95f04be311315808168b070793b51cb24
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2986601
Reviewed-by: Denis Brockus <dbrockus@chromium.org>
Reviewed-by: Diana Z <dzigterman@chromium.org>
Commit-Queue: Diana Z <dzigterman@chromium.org>
Diffstat (limited to 'driver/tcpm')
| -rw-r--r-- | driver/tcpm/tcpci.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/driver/tcpm/tcpci.c b/driver/tcpm/tcpci.c index 021afc070f..3bd5d1b5d0 100644 --- a/driver/tcpm/tcpci.c +++ b/driver/tcpm/tcpci.c @@ -175,10 +175,15 @@ int tcpc_addr_read(int port, int i2c_addr, int reg, int *val) int tcpc_addr_read16(int port, int i2c_addr, int reg, int *val) { - int rv; - pd_wait_exit_low_power(port); + return tcpc_addr_read16_no_lpm_exit(port, i2c_addr, reg, val); +} + +int tcpc_addr_read16_no_lpm_exit(int port, int i2c_addr, int reg, int *val) +{ + int rv; + rv = i2c_read16(tcpc_config[port].i2c_info.port, i2c_addr, reg, val); |