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| author | Gwendal Grignou <gwendal@chromium.org> | 2016-11-15 16:35:12 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-11-21 18:22:56 -0800 |
| commit | bcbeb89da1b1a906ba913a5a08ada343342781d7 (patch) | |
| tree | ca2458f602eef3e113e82fd95a07aee92e9b2b38 /core | |
| parent | 88685f6a667f1a3b283fd29d4f4269766be06e72 (diff) | |
| download | chrome-ec-bcbeb89da1b1a906ba913a5a08ada343342781d7.tar.gz | |
driver: bmi160: Remove unnecessary delay
Rereading the specification, remove delays when not needed:
- When we move the sensor out of suspend, we need to wait before
using it (BMI160 spec: 2.11.38 Register (0x7E) CMD)
When we do a softreset, we need just need to wait 300us for the
sensor to go in suspend, we will wait only when we change the rate
and enable the sensor.
- The timeout at fifo flush is not needed, it was added for debugging.
- Remove unnecessary printf when initializing the magnetometer.
BUG=chrome-os-partner:59188
BRANCH=glados, reef, strago
TEST=On reef, check the EC boot faster: time spend initializing the
sensors
decreased from 240ms to 133ms
Change-Id: Ia80232da42aa705df819a4988da483a344ffcbb4
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/411964
Commit-Ready: David Hendricks <dhendrix@chromium.org>
Tested-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'core')
0 files changed, 0 insertions, 0 deletions