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units: complement the set of Hz units

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Currently, Hz units do not have milli, micro and nano Hz coefficients.
Some drivers (IIO especially) use their analogues to calculate
appropriate Hz values. This patch includes them to units.h definitions,
so they can be used from different kernel places.

Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Link: https://lore.kernel.org/r/20220812165243.22177-3-ddrokosov@sberdevices.ru
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Dmitry Rokosov 2022-08-12 16:52:26 +00:00 committed by Jonathan Cameron
parent 682ca76bc6
commit d2a4cbcb8b
1 changed files with 3 additions and 0 deletions
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3
include/linux/units.h
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@ -20,6 +20,9 @@
#define PICO 1000000000000ULL
#define FEMTO 1000000000000000ULL
#define NANOHZ_PER_HZ 1000000000UL
#define MICROHZ_PER_HZ 1000000UL
#define MILLIHZ_PER_HZ 1000UL
#define HZ_PER_KHZ 1000UL
#define KHZ_PER_MHZ 1000UL
#define HZ_PER_MHZ 1000000UL