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authorGwendal Grignou <gwendal@chromium.org>2019-11-19 15:45:46 +0300
committerEnric Balletbo i Serra <enric.balletbo@collabora.com>2019-11-21 13:23:14 +0300
commit05a3c420eaa6857cb20afe7e3a3c39ed94a3b2c1 (patch)
tree759954afc73e37fecba299388f1d6be0909a529e /drivers/ipack/devices
parentd60ac88a62df71cb12b2d60d2dae5658fb4eab43 (diff)
downloadlinux-05a3c420eaa6857cb20afe7e3a3c39ed94a3b2c1.tar.xz
platform/chrome: cros-ec: Record event timestamp in the hard irq
To improve sensor timestamp precision, given EC and AP are in different time domains, the AP needs to try to record the exact moment an event was signalled to the AP by the EC as soon as possible after it happens. First thing in the hard irq is the best place for this. Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@kernel.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
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