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driver: sensor: npcx: add tachometer sensor support.

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In NPCX7 series, it contains two tachometer (TACH) modules that contains
two Independent timers (counter 1 and 2). They are used to capture a
counter value when an event is detected via the external pads (TA or
TB).

The CL also includes:
— Add npcx tachometer device tree declarations.
— Zephyr sensor api implementation for tachometer.
— Enable "tach1" device in npcx7m6fb.dts for testing.

Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This commit is contained in:
Mulin Chao 2021-01-12 01:45:06 -08:00 • committed by Anas Nashif
commit 7c9d3f44f0
13 changed files with 573 additions and 0 deletions
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drivers/sensor/Kconfig
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@ -196,4 +196,6 @@ source "drivers/sensor/wsen_itds/Kconfig"
source "drivers/sensor/mcux_acmp/Kconfig"
source "drivers/sensor/nuvoton_tach_npcx/Kconfig"
endif # SENSOR