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| author | Gwendal Grignou <gwendal@chromium.org> | 2017-10-27 15:07:19 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2017-10-30 14:03:10 -0700 |
| commit | 8a2d0a5de6fc03eeea79a65469b361ae0ca694c9 (patch) | |
| tree | 3e1c1825a8e3c054097fa8f4ce5b8b036ef25846 /board/poppy/board.c | |
| parent | a0f43d59d0b58390b22b7e9b58e2b7a799db4070 (diff) | |
| download | chrome-ec-8a2d0a5de6fc03eeea79a65469b361ae0ca694c9.tar.gz | |
driver: BMM150: Set max frequency based on repetitions setting
The compass uses oversampling to produce accurate values.
MAX_ODR is functions of the repetitions setting.
80Hz is too high, calculate the frequency based on preset setting.
Currently, we use 'SPECIAL' that was calculated for Ryu.
BUG=b:68394559
BRANCH=eve,reef,poppy
TEST=Check with ectool motionsense info 3 the frequency is around 30Hz.
Before:
Min Frequency: 781 mHz
Max Frequency: 80000 mHz
After:
Min Frequency: 781 mHz
Max Frequency: 29579 mHz
Check with AIDA64 the compass is not stuck and return changing values.
Fixup of CL/570482
Change-Id: Idcfed1418f59e755e5647d018351c6a7397ffe1b
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/742146
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Diffstat (limited to 'board/poppy/board.c')
| -rw-r--r-- | board/poppy/board.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/board/poppy/board.c b/board/poppy/board.c index f2027516f2..60cdff40dd 100644 --- a/board/poppy/board.c +++ b/board/poppy/board.c @@ -998,7 +998,7 @@ struct motion_sensor_t motion_sensors[] = { .default_range = 1 << 11, /* 16LSB / uT, fixed */ .rot_standard_ref = &mag_standard_ref, .min_frequency = BMM150_MAG_MIN_FREQ, - .max_frequency = BMM150_MAG_MAX_FREQ, + .max_frequency = BMM150_MAG_MAX_FREQ(SPECIAL), .config = { /* AP: by default shutdown all sensors */ [SENSOR_CONFIG_AP] = { |