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authorDaniel Lezcano <daniel.lezcano@linaro.org>2021-09-07 19:57:48 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-08 11:50:25 -0700
commite2c77032fcbe515194107994d12cd72ddb77b022 (patch)
tree46bc72d27a097c50af920eee5b2475540f2dd603 /include/linux/units.h
parentc9221919a2d2df5741ab074dfec5bdfc6f1e043b (diff)
units: add the HZ macros
The macros for the unit conversion for frequency are duplicated in different places. Provide these macros in the 'units' header, so they can be reused. Link: https://lkml.kernel.org/r/20210816114732.1834145-3-daniel.lezcano@linaro.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Christian Eggers <ceggers@arri.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Chanwoo Choi <cw00.choi@samsung.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Lukasz Luba <lukasz.luba@arm.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Miquel Raynal <miquel.raynal@bootlin.com> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/units.h')
-rw-r--r--include/linux/units.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/units.h b/include/linux/units.h
index ff51d3cfc6a0..8b8dc8a84d93 100644
--- a/include/linux/units.h
+++ b/include/linux/units.h
@@ -4,6 +4,10 @@
#include <linux/math.h>
+#define HZ_PER_KHZ 1000UL
+#define KHZ_PER_MHZ 1000UL
+#define HZ_PER_MHZ 1000000UL
+
#define MILLIWATT_PER_WATT 1000UL
#define MICROWATT_PER_MILLIWATT 1000UL
#define MICROWATT_PER_WATT 1000000UL