linux-kernel - [PATCH v1 1/3] units: complement the set of Hz units

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Message-ID: <20220725184439.7618-2-ddrokosov@sberdevices.ru>
Date:   Mon, 25 Jul 2022 18:44:26 +0000
From:   Dmitry Rokosov <DDRokosov@...rdevices.ru>
To:     "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "andriy.shevchenko@...ux.intel.com" 
        <andriy.shevchenko@...ux.intel.com>,
        "daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
        "jic23@...nel.org" <jic23@...nel.org>,
        "wsa@...nel.org" <wsa@...nel.org>,
        "andy.shevchenko@...il.com" <andy.shevchenko@...il.com>,
        "lars@...afoo.de" <lars@...afoo.de>,
        "Michael.Hennerich@...log.com" <Michael.Hennerich@...log.com>,
        "jbhayana@...gle.com" <jbhayana@...gle.com>
CC:     "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        kernel <kernel@...rdevices.ru>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Dmitry Rokosov <DDRokosov@...rdevices.ru>
Subject: [PATCH v1 1/3] units: complement the set of Hz units

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@...rdevices.ru>
---
 include/linux/units.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/units.h b/include/linux/units.h
index 681fc652e3d7..900a642f0ff8 100644
--- a/include/linux/units.h
+++ b/include/linux/units.h
@@ -20,6 +20,9 @@
 #define PICO	1000000000000ULL
 #define FEMTO	1000000000000000ULL
 
+#define NHZ_PER_HZ		1000000000UL
+#define UHZ_PER_HZ		1000000UL
+#define MHZ_PER_HZ		1000UL
 #define HZ_PER_KHZ		1000UL
 #define KHZ_PER_MHZ		1000UL
 #define HZ_PER_MHZ		1000000UL
-- 
2.36.0