diff options
| author | Gwendal Grignou <gwendal@chromium.org> | 2018-07-02 13:17:47 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-07-03 22:31:05 -0700 |
| commit | fec3c3c7ec17aaa92332b3128ce3afd352585bed (patch) | |
| tree | 59157ab3eac4cf5f6f0ffb6c395f2e78e0dbab45 /include | |
| parent | 797146cb4c63a00a9535ad92fcbb75e65d98d688 (diff) | |
| download | chrome-ec-fec3c3c7ec17aaa92332b3128ce3afd352585bed.tar.gz | |
sensor: Add flag for tight timestamping
Kernel needs to be aware of the the new timestamp code to apply proper
filtering/spreading.
This flag set means that timestamps are always after every sensor sample,
and both timestamps (sensor sample and fifo info) are recorded with
minimal latency and jitter.
TEST=Add 'dev_err(dev, "feature 36 = %d\n", cros_ec_check_features(ec, 36));'
in kernel/drivers/platform/chrome/cros_ec_dev.c
See the bit set (16, not 0) in dmesg.
BUG=b/111079027, b/109786990
Change-Id: Ia71703e035d7a6eac1e0a483caa62b7c75e5cb2a
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1123218
Diffstat (limited to 'include')
| -rw-r--r-- | include/ec_commands.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/ec_commands.h b/include/ec_commands.h index 3379fd7441..b67f93dde2 100644 --- a/include/ec_commands.h +++ b/include/ec_commands.h @@ -1265,6 +1265,8 @@ enum ec_feature_code { EC_FEATURE_EXEC_IN_RAM = 34, /* EC supports CEC commands */ EC_FEATURE_CEC = 35, + /* EC supports tight sensor timestamping. */ + EC_FEATURE_MOTION_SENSE_TIGHT_TIMESTAMPS = 36, }; #define EC_FEATURE_MASK_0(event_code) (1UL << (event_code % 32)) |