mfd / platform: cros_ec: Add sensor_count and make check_features public

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Add a new function to return the number of MEMS sensors available in a
ChromeOS Embedded Controller. It uses MOTIONSENSE_CMD_DUMP if available
or a specific memory map ACPI registers to find out.

Also, make check_features public as it can be useful for other drivers
to know what the Embedded Controller supports.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>

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Gwendal Grignou 2019-11-19 13:45:45 +01:00 • committed by Enric Balletbo i Serra

parent c9b465683a

commit a16b2e2819

3 changed files with 122 additions and 32 deletions

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include/linux/platform_data/cros_ec_proto.h

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