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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id u14-20020a056a00158e00b005061eb330a1si10414325pfk.351.2022.05.28.12.19.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 May 2022 12:19:42 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=OjzABn4v; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 211BA483B5; Sat, 28 May 2022 11:52:06 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238712AbiE1RO1 (ORCPT + 99 others); Sat, 28 May 2022 13:14:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43454 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238561AbiE1ROZ (ORCPT ); Sat, 28 May 2022 13:14:25 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 67CE712D2D; Sat, 28 May 2022 10:14:24 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 05A75B801BF; Sat, 28 May 2022 17:14:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 60478C34100; Sat, 28 May 2022 17:14:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1653758061; bh=i1tX6uyAyQmWx3WtUEkfTOp6hj48zz27F+SBAk/tkrk=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=OjzABn4vqPt8RdqtjbC+KUzFsJGO6g434tzB4B2wOg5sMUHnr4fBsvB5uOUWdkLDx ksr5JIAVYe48EJGArGha8HdLNefJc39YPFeY8BcJGqkHhjSqILN1p+G77m7k+CKTlw 8xkH3DnFT2ntB4BFVa4RsXorOsvcLEDVi+KDDqtmZtCjrTLjEM2yrHidk8Rb/Ldtkk jW+vX7QnxAEpBYrXtFJgQB0UYajjehEEjVr0j6hVBhm1eAbBgbniuPIONs1lGF3rWX 4Fp4c47x0RjYSEXI+9eWgG7Mr6X7ef8+yUGN/Y6U/96svbHfye+P9t82wUKt+GMkjm DHTx6y7R1XMVA== Date: Sat, 28 May 2022 18:23:14 +0100 From: Jonathan Cameron To: LI Qingwu Cc: lars@metafoo.de, robh+dt@kernel.org, tomas.melin@vaisala.com, andy.shevchenko@gmail.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, thomas.haemmerle@leica-geosystems.com, linux-iio@vger.kernel.org Subject: Re: [PATCH V8 5/5] iio: accel: sca3300: Add inclination channels Message-ID: <20220528182314.0785a92b@jic23-huawei> In-Reply-To: <20220523062312.1401944-6-Qing-wu.Li@leica-geosystems.com.cn> References: <20220523062312.1401944-1-Qing-wu.Li@leica-geosystems.com.cn> <20220523062312.1401944-6-Qing-wu.Li@leica-geosystems.com.cn> X-Mailer: Claws Mail 4.1.0 (GTK 3.24.34; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-3.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 23 May 2022 06:23:12 +0000 LI Qingwu wrote: > Different from SCA3300, SCL3300 can output inclination angles. > Angles are formed from acceleration with following equations: > ANG_X = atan2(accx , sqrt(pow(accy , 2) + pow(accz , 2))) > ANG_Y = atan2(accy , sqrt(pow(accx , 2) + pow(accz , 2))) > ANG_Z = atan2(accz , sqrt(pow(accx , 2) + pow(accy , 2))) > > The commit adds the output of the raw value, scale > and scale_available of angles. > > New interfaces: > in_incli_scale > in_incli_scale_available > in_incli_x_raw > in_incli_y_raw > in_incli_z_raw > Data converted by application of scale to degrees. > > Signed-off-by: LI Qingwu > --- Hi, One comment inline. > struct sca3300_chip_info { > const char *name; > const unsigned long *scan_masks; > @@ -123,12 +167,16 @@ struct sca3300_chip_info { > u8 num_accel_scales; > const int (*accel_scale)[2]; > const int *accel_scale_map; > + const int (*incli_scale)[2]; > + const int *incli_scale_map; > + u8 num_incli_scales; > u8 num_freqs; > const int *freq_table; > const int *freq_map; > const int *avail_modes_table; > u8 num_avail_modes; > u8 chip_id; > + bool angle; "angle" is a bit vague. Perhaps "angle_supported"? Otherwise this looks good to me. Thanks, Jonathan