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| author | Enrico Granata <egranata@chromium.org> | 2019-03-14 17:02:47 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-03-26 04:43:11 -0700 |
| commit | 184410c9ee7530404813f5bd0a80a0a9d21f2a5a (patch) | |
| tree | 44f76ee1cf0213cc673d0449de0eb49b6ae3e1c8 /common/ec_features.c | |
| parent | 5ea11347a3600d898ba473884735ff11f758fb9d (diff) | |
| download | chrome-ec-184410c9ee7530404813f5bd0a80a0a9d21f2a5a.tar.gz | |
motion: Split configuration for sensor FIFO and tight timestamps
CONFIG_ACCEL_FIFO was being used both to control the size of the
sensor FIFO, and the notion of tight timestamps. The latter is
related to the format the EC uses to send sensor event timestamps
and not to the size of the FIFO.
Split this latter portion into its own configuration flag,
CONFIG_SENSOR_TIGHT_TIMESTAMPS.
This defaults to enabled, and should be turned on for all new
boards. It will be selectively disabled on a few boards where
the AP-side filtering this enables does not perform optimally
due to jitter issues.
BUG=b:123700100
BRANCH=rammus
TEST=observe tight_timestamps on the sensor_ring device in kernel
be enabled/disabled depending on whether CONFIG_SENSOR_TIGHT_TIMESTAMPS
is #undef'ed or not
Change-Id: I806ba6bb45a0007512afec9151c57c60d30fd604
Signed-off-by: Enrico Granata <egranata@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1524666
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Alexandru M Stan <amstan@chromium.org>
Diffstat (limited to 'common/ec_features.c')
| -rw-r--r-- | common/ec_features.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/common/ec_features.c b/common/ec_features.c index 8d364118e0..fb45789a63 100644 --- a/common/ec_features.c +++ b/common/ec_features.c @@ -125,7 +125,7 @@ uint32_t get_feature_flags1(void) #ifdef CONFIG_CEC | EC_FEATURE_MASK_1(EC_FEATURE_CEC) #endif -#ifdef CONFIG_ACCEL_FIFO +#ifdef CONFIG_SENSOR_TIGHT_TIMESTAMPS | EC_FEATURE_MASK_1(EC_FEATURE_MOTION_SENSE_TIGHT_TIMESTAMPS) #endif #if defined(CONFIG_LID_ANGLE) && defined(CONFIG_TABLET_MODE) |