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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5AA6AC636CC for ; Tue, 31 Jan 2023 09:54:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231181AbjAaJyA (ORCPT ); Tue, 31 Jan 2023 04:54:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54964 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231795AbjAaJxk (ORCPT ); Tue, 31 Jan 2023 04:53:40 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D33083AB0 for ; Tue, 31 Jan 2023 01:53:38 -0800 (PST) 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 dfw.source.kernel.org (Postfix) with ESMTPS id 6C6AD61478 for ; Tue, 31 Jan 2023 09:53:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 71211C433D2; Tue, 31 Jan 2023 09:53:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1675158817; bh=JbR7VI3RYQnwOdEmyH6vcSNfhYD4JRIYG94lUXkBpo8=; h=Subject:To:From:Date:From; b=XLBvhIj4xwUS1D3uMJ188jgSfzP4UX1waHg2m5cX5p5aAUK7tegdcXnoXuRPyCmQE p/eLm2N3Ka7nP4xqoJop6an81lLKf8de/Wq2ihlYUGdkBgyXkHHJ+R2ca5mjidjeEn Smh1DzyqMJmrHY65j+m23bHuRi0pkbQ4Kdmi+a1E= Subject: patch "iio: imu: fxos8700: fix MAGN sensor scale and unit" added to char-misc-linus To: carlos.song@nxp.com, Jonathan.Cameron@huawei.com, Stable@vger.kernel.org From: Date: Tue, 31 Jan 2023 10:52:46 +0100 Message-ID: <1675158766214141@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This is a note to let you know that I've just added the patch titled iio: imu: fxos8700: fix MAGN sensor scale and unit to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From 2acd031347f645871959a799238a7caf6803aa18 Mon Sep 17 00:00:00 2001 From: Carlos Song Date: Wed, 18 Jan 2023 15:42:27 +0800 Subject: iio: imu: fxos8700: fix MAGN sensor scale and unit +/-1200uT is a MAGN sensor full measurement range. Magnetometer scale is the magnetic sensitivity parameter. It is referenced as 0.1uT according to datasheet and magnetometer channel unit is Gauss in sysfs-bus-iio documentation. Gauss and uTesla unit conversion relationship as follows: 0.1uT = 0.001Gs. Set magnetometer scale and available magnetometer scale as fixed 0.001Gs. Fixes: 84e5ddd5c46e ("iio: imu: Add support for the FXOS8700 IMU") Signed-off-by: Carlos Song Link: https://lore.kernel.org/r/20230118074227.1665098-5-carlos.song@nxp.com Cc: Signed-off-by: Jonathan Cameron --- drivers/iio/imu/fxos8700_core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/iio/imu/fxos8700_core.c b/drivers/iio/imu/fxos8700_core.c index 880b9bcb80ff..6d189c4b9ff9 100644 --- a/drivers/iio/imu/fxos8700_core.c +++ b/drivers/iio/imu/fxos8700_core.c @@ -351,7 +351,7 @@ static int fxos8700_set_scale(struct fxos8700_data *data, struct device *dev = regmap_get_device(data->regmap); if (t == FXOS8700_MAGN) { - dev_err(dev, "Magnetometer scale is locked at 1200uT\n"); + dev_err(dev, "Magnetometer scale is locked at 0.001Gs\n"); return -EINVAL; } @@ -396,7 +396,7 @@ static int fxos8700_get_scale(struct fxos8700_data *data, static const int scale_num = ARRAY_SIZE(fxos8700_accel_scale); if (t == FXOS8700_MAGN) { - *uscale = 1200; /* Magnetometer is locked at 1200uT */ + *uscale = 1000; /* Magnetometer is locked at 0.001Gs */ return 0; } @@ -588,7 +588,7 @@ static IIO_CONST_ATTR(in_accel_sampling_frequency_available, static IIO_CONST_ATTR(in_magn_sampling_frequency_available, "1.5625 6.25 12.5 50 100 200 400 800"); static IIO_CONST_ATTR(in_accel_scale_available, "0.000244 0.000488 0.000976"); -static IIO_CONST_ATTR(in_magn_scale_available, "0.000001200"); +static IIO_CONST_ATTR(in_magn_scale_available, "0.001000"); static struct attribute *fxos8700_attrs[] = { &iio_const_attr_in_accel_sampling_frequency_available.dev_attr.attr, -- 2.39.1