diff options
| author | Keith Short <keithshort@chromium.org> | 2020-02-07 15:50:17 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-02-14 04:09:01 +0000 |
| commit | 4f748cf760dcc57b628f08ef705701235cb6c842 (patch) | |
| tree | c72bc9fc42d654a14ea6bd3c26a2c43766b8ede5 /driver/ppc/syv682x.h | |
| parent | d595bddb4c6576c9f5611d3a42c71424ebd3c1d7 (diff) | |
| download | chrome-ec-4f748cf760dcc57b628f08ef705701235cb6c842.tar.gz | |
syv682x: Enable smart discharge mode
The SYV682A device provides a smart discharge mode that automatically
discharges VBUS and VCHG when the channel is shutdown. This works better
than the manual dicharge mode which must be explicitly cleared after the
discharge completes.
This change also adds BUSY detection to the driver and performs a
register reset during initialization.
BUG=b:148870148, b:148467221
BRANCH=none
TEST=make buildall
TEST=Verify connection of SRC devices start battery charging, including
DRP devices.
TEST=Verify SNK devices are detected and reported by the kernel
TEST=Measture VBUS discharge times of 20 ms when disconnecting both SNK
and SRC devices.
TEST=Write non-default value in SYV682 register, reboot EC, verify
register updates to default plus EC changes.
Change-Id: I54a5367924f3ae5adc473cb4b0a11789476e7bc3
Signed-off-by: Keith Short <keithshort@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2051311
Reviewed-by: caveh jalali <caveh@chromium.org>
Diffstat (limited to 'driver/ppc/syv682x.h')
| -rw-r--r-- | driver/ppc/syv682x.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/driver/ppc/syv682x.h b/driver/ppc/syv682x.h index 4a76659f41..1bb2be4f5c 100644 --- a/driver/ppc/syv682x.h +++ b/driver/ppc/syv682x.h @@ -42,6 +42,8 @@ #define SYV682X_CONTROL_2_FDSG BIT(0) /* Control Register 3 */ +#define SYV682X_BUSY BIT(7) +#define SYV682X_RST_REG BIT(0) #define SYV682X_OVP_MASK 0x70 #define SYV682X_OVP_BIT_SHIFT 4 #define SYV682X_OVP_06_0 0 |