diff options
| author | Rob Barnes <robbarnes@google.com> | 2021-04-20 12:35:07 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-04-22 22:40:37 +0000 |
| commit | 94af8e1d5e4203f0e5af0732b8adff0649241ddc (patch) | |
| tree | cceb510f9080c9ecad9c0c7edd2ebc91b13cee5d /driver/usb_mux/anx7451.h | |
| parent | 964d97811ecf157c5436288d0aad9ba399e4dd72 (diff) | |
| download | chrome-ec-94af8e1d5e4203f0e5af0732b8adff0649241ddc.tar.gz | |
ANX7451: Add power off and wake up routines
Add anx7451_power_off and anx7451_wake_up routines. ANX7451 is powered
off whenever both USB and DP are disabled. ANX7451 is woken up via i2c
before mux set or get.
BUG=b:184907521
TEST=Mux is powering off when nothing is connected.
Mux is waking up when cable is connected.
BRANCH=None
Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: Idf1343735cb94eb8bbaebe93794195d2f115b086
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2840056
Reviewed-by: Diana Z <dzigterman@chromium.org>
Diffstat (limited to 'driver/usb_mux/anx7451.h')
| -rw-r--r-- | driver/usb_mux/anx7451.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/driver/usb_mux/anx7451.h b/driver/usb_mux/anx7451.h index c8d302f5c9..cf7a701f6c 100644 --- a/driver/usb_mux/anx7451.h +++ b/driver/usb_mux/anx7451.h @@ -15,6 +15,10 @@ #define ANX7451_I2C_ADDR2_FLAGS 0x16 #define ANX7451_I2C_ADDR3_FLAGS 0x11 +/* This register is not documented in datasheet. */ +#define ANX7451_REG_POWER_CNTRL 0x2B +#define ANX7451_POWER_CNTRL_OFF 0xFF + /* * Ultra low power control register. * On ANX7451, this register should always be 0 (disabled). |