From patchwork Mon Jul 12 14:20:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 473244 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF334C07E99 for ; Mon, 12 Jul 2021 14:20:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A131A61026 for ; Mon, 12 Jul 2021 14:20:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235192AbhGLOWy (ORCPT ); Mon, 12 Jul 2021 10:22:54 -0400 Received: from mga07.intel.com ([134.134.136.100]:21743 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233927AbhGLOWy (ORCPT ); Mon, 12 Jul 2021 10:22:54 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10042"; a="273821538" X-IronPort-AV: E=Sophos;i="5.84,234,1620716400"; d="scan'208";a="273821538" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jul 2021 07:20:05 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,234,1620716400"; d="scan'208";a="629677382" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga005.jf.intel.com with ESMTP; 12 Jul 2021 07:20:03 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 7D03BFF; Mon, 12 Jul 2021 17:20:30 +0300 (EEST) From: Andy Shevchenko To: Andy Shevchenko , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jarkko Nikula , Mika Westerberg , wsa@kernel.org Subject: [PATCH v3 1/3] units: Add SI metric prefix definitions Date: Mon, 12 Jul 2021 17:20:25 +0300 Message-Id: <20210712142027.22900-1-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Sometimes it's useful to have well-defined SI metric prefix to be used to self-describe the formulas or equations. List most popular ones in the units.h. Signed-off-by: Andy Shevchenko --- v3: converted to be unsigned values (Joe) include/linux/units.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/include/linux/units.h b/include/linux/units.h index dcc30a53fa93..4a25e0cc8fb3 100644 --- a/include/linux/units.h +++ b/include/linux/units.h @@ -4,6 +4,22 @@ #include +/* Metric prefixes in accordance with Système international (d'unités) */ +#define PETA 1000000000000000ULL +#define TERA 1000000000000ULL +#define GIGA 1000000000UL +#define MEGA 1000000UL +#define KILO 1000UL +#define HECTO 100UL +#define DECA 10UL +#define DECI 10UL +#define CENTI 100UL +#define MILLI 1000UL +#define MICRO 1000000UL +#define NANO 1000000000UL +#define PICO 1000000000000ULL +#define FEMTO 1000000000000000ULL + #define MILLIWATT_PER_WATT 1000L #define MICROWATT_PER_MILLIWATT 1000L #define MICROWATT_PER_WATT 1000000L