From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_NEOMUTT 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 7C963C31E4C for ; Fri, 14 Jun 2019 16:32:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5521221841 for ; Fri, 14 Jun 2019 16:32:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="u0OqxJ8w" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726177AbfFNQcb (ORCPT ); Fri, 14 Jun 2019 12:32:31 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:42689 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725859AbfFNQcb (ORCPT ); Fri, 14 Jun 2019 12:32:31 -0400 Received: by mail-wr1-f65.google.com with SMTP id x17so3170995wrl.9; Fri, 14 Jun 2019 09:32:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=Bk25I9bYJ1QkQE44oNBhQvDFUFwOGY+qKAFcfRif1YY=; b=u0OqxJ8w+zUXf1Wq56t/UtX2iY9Bnt5XmPJgxTE76bhzUIwdkWTp/aq3zzK03/kx3G dBfQWt76sNup1zwZxbZF4HN6BCuOrCg5ab+ng6DvY8Ec1l+7n3mNR4nQVWp/m2Rsnquh QoODp8H8okYFK9mawBvo7m9h4/AIajPEQO766drLGTyaCWQqnVmwMuYqNiishkrjoL3S fc+ZqTQVs5pw9P/1bk0qTZnK2u3slwLYu4BZouFS/B3JZNkloh1uvgDxjOd37MGXVXQ7 XTwy8p01wNLRjcdPQiJjl//zitZjiGh3l+NUV7y3Uql76uRrJSGoaPJnyVH7Weg0pV7d M3IA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=Bk25I9bYJ1QkQE44oNBhQvDFUFwOGY+qKAFcfRif1YY=; b=n1mwd7eqhRlG4Z2Mtag+ELwKt1qaz1t2ekjH1xEXgbjP1fQJr2YeYgQnQWKzhZ5kNW RxH8fiRJH0cY3g4ifUnYWeYTf/JPiB9O0lqW7WZadTsN08Ue2dmQ1GyHhaCGj23Ner1f nAq33utULbOC4gWppFro2yKRCGD6C7LF2QrtaP0MeLTM6T2hniY9WF9vIGlfek0G7QNw KYBxeqIzY4vfo/pHklv9MEWaUdPEznLLqfnXNbrQPsCE/kJ+7mthLQoJw3bR3FP0JY+m VQTM3f7cy+UCWgUADHkTRr6A8Vp82yHkB/UJrSMjtszwpyql6FQCN8VsVexrv0xxBwRM 49IQ== X-Gm-Message-State: APjAAAUGydPmYHfkbDWgnHQwYLBl2908DOYx7szYAgmMUGQCBjiQ4hoE 1Et6S1IrSLlN+khSU4sUjIk= X-Google-Smtp-Source: APXvYqwCqZPFUEltPB18dZHXPPr0GSGxTfJkT0oIbrSP8s/I7DkUQUrJKgTZImT1/eaVo9AJ0TapSg== X-Received: by 2002:a5d:620f:: with SMTP id y15mr8792301wru.262.1560529949634; Fri, 14 Jun 2019 09:32:29 -0700 (PDT) Received: from smtp.gmail.com (1.77.115.89.rev.vodafone.pt. [89.115.77.1]) by smtp.gmail.com with ESMTPSA id d17sm4880775wrx.9.2019.06.14.09.32.28 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Fri, 14 Jun 2019 09:32:28 -0700 (PDT) Date: Fri, 14 Jun 2019 13:32:21 -0300 From: Melissa Wen To: Lars-Peter Clausen , Michael Hennerich , Stefan Popa , Jonathan Cameron , Hartmut Knaack , Peter Meerwald-Stadler , Greg Kroah-Hartman , Barry Song <21cnbao@gmail.com> Cc: linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, kernel-usp@googlegroups.com Subject: [PATCH v2 1/3] staging: iio: ad7150: use FIELD_GET and GENMASK Message-ID: <4f88fd66e478289006353645d84b7af1b5aa345c.1560529045.git.melissa.srw@gmail.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20180716 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Use the bitfield macro FIELD_GET, and GENMASK to do the shift and mask in one go. This makes the code more readable than explicit masking followed by a shift. Signed-off-by: Melissa Wen --- drivers/staging/iio/cdc/ad7150.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c index 8234da4b8c65..091aa33589d7 100644 --- a/drivers/staging/iio/cdc/ad7150.c +++ b/drivers/staging/iio/cdc/ad7150.c @@ -5,6 +5,7 @@ * Copyright 2010-2011 Analog Devices Inc. */ +#include #include #include #include @@ -45,6 +46,9 @@ #define AD7150_SN0 22 #define AD7150_ID 23 +/* AD7150 masks */ +#define AD7150_THRESHTYPE_MSK GENMASK(6, 5) + /** * struct ad7150_chip_info - instance specific chip data * @client: i2c client for this device @@ -137,7 +141,7 @@ static int ad7150_read_event_config(struct iio_dev *indio_dev, if (ret < 0) return ret; - threshtype = (ret >> 5) & 0x03; + threshtype = FIELD_GET(AD7150_THRESHTYPE_MSK, ret); adaptive = !!(ret & 0x80); switch (type) { -- 2.20.1