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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 5CECCC2D0C2 for ; Sat, 4 Jan 2020 13:04:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2F76D22B48 for ; Sat, 4 Jan 2020 13:04:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725862AbgADNEe (ORCPT ); Sat, 4 Jan 2020 08:04:34 -0500 Received: from comms.puri.sm ([159.203.221.185]:45604 "EHLO comms.puri.sm" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725805AbgADNEe (ORCPT ); Sat, 4 Jan 2020 08:04:34 -0500 Received: from localhost (localhost [127.0.0.1]) by comms.puri.sm (Postfix) with ESMTP id D1734E035E; Sat, 4 Jan 2020 05:04:32 -0800 (PST) Received: from comms.puri.sm ([127.0.0.1]) by localhost (comms.puri.sm [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4Sk1f8rvVeie; Sat, 4 Jan 2020 05:04:31 -0800 (PST) Subject: Re: [PATCH] iio: imu: st_lsm6dsx: add mount matrix support To: Lorenzo Bianconi Cc: lorenzo.bianconi83@gmail.com, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, linux-iio@vger.kernel.org References: <20200103102630.17109-1-martin.kepplinger@puri.sm> <20200104113327.GA3725@new-host-3> From: Martin Kepplinger Autocrypt: addr=martin.kepplinger@puri.sm; keydata= mQINBFULfZABEADRxJqDOYAHfrp1w8Egcv88qoru37k1x0Ugy8S6qYtKLAAt7boZW+q5gPv3 Sj2KjfkWA7gotXpASN21OIfE/puKGwhDLAySY1DGNMQ0gIVakUO0ji5GJPjeB9JlmN5hbA87 Si9k3yKQQfv7Cf9Lr1iZaV4A4yjLP/JQMImaCVdC5KyqJ98Luwci1GbsLIGX3EEjfg1+MceO 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FmxNAJx7iiXaUY9KQ3snoEz3r37RxEDcvTY9KKahwxEzk2Mf58OPVaV4PEsRianrmErSUfmp l93agbtZK1r5LaxeItFOj+O2hWFLNDenJRlBYwXwlJCiHxM/O273hZZPoP8L5p54uXhaS5EJ uV2Xzgbi3VEbw3GZr+EnDC7XNE2wUrnlD/w2W6RzVYjVT6IX4SamNlV+MWX0/1fYCutfqZl8 6BSKmJjlWpfkPKzyzjhGQVZrTZYnKAu471hRv8/6Dx5JuZJgDCnYanNx3DDreRMu/nq6TfaO ekMtxgNYb/8oDry09UFHbGHLsWn6oBo= Message-ID: <849a753e-2b5a-f5c1-77dd-f6ce00d44621@puri.sm> Date: Sat, 4 Jan 2020 14:04:27 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 In-Reply-To: <20200104113327.GA3725@new-host-3> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org On 04.01.20 12:33, Lorenzo Bianconi wrote: >> Allow to read the mount-matrix device tree property and provide the >> mount_matrix file for userspace to read. >> >> Signed-off-by: Martin Kepplinger >> --- >> >> tested using the lsm9ds1 on the librem5-devkit (and userspace tools like >> iio-sensor-proxy) where this will be needed. >> >> thanks, >> >> martin >> >> >> >> drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h | 18 ++++++++++++++++++ >> drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 4 ++++ >> 2 files changed, 22 insertions(+) >> >> diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h >> index a763ff46f596..8483f770b233 100644 >> --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h >> +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h >> @@ -76,6 +76,7 @@ enum st_lsm6dsx_hw_id { >> .endianness = IIO_LE, \ >> }, \ >> .event_spec = &st_lsm6dsx_event, \ >> + .ext_info = st_lsm6dsx_accel_ext_info, \ >> .num_event_specs = 1, \ >> } >> >> @@ -406,6 +407,8 @@ struct st_lsm6dsx_hw { >> struct iio_dev *iio_devs[ST_LSM6DSX_ID_MAX]; >> >> const struct st_lsm6dsx_settings *settings; >> + >> + struct iio_mount_matrix orientation; > > Could you please add doc for orientation struct as we did for all other member > of st_lsm6dsx_hw? > >> }; >> >> static __maybe_unused const struct iio_event_spec st_lsm6dsx_event = { >> @@ -479,4 +482,19 @@ st_lsm6dsx_write_locked(struct st_lsm6dsx_hw *hw, unsigned int addr, >> return err; >> } >> >> +static const struct iio_mount_matrix * >> +st_lsm6dsx_get_mount_matrix(const struct iio_dev *iio_dev, >> + const struct iio_chan_spec *chan) > > static const inline struct iio_mount_matrix * > st_lsm6dsx_get_mount_matrix(const struct iio_dev *iio_dev > >> +{ >> + struct st_lsm6dsx_sensor *sensor = iio_priv(iio_dev); >> + struct st_lsm6dsx_hw *hw = sensor->hw; >> + >> + return &hw->orientation; >> +} >> + >> +static const struct iio_chan_spec_ext_info st_lsm6dsx_accel_ext_info[] = { >> + IIO_MOUNT_MATRIX(IIO_SHARED_BY_ALL, st_lsm6dsx_get_mount_matrix), >> + { } >> +}; >> + >> #endif /* ST_LSM6DSX_H */ >> diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c >> index 0c64e35c7599..587e02bb9be9 100644 >> --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c >> +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c >> @@ -2325,6 +2325,10 @@ int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, >> (pdata && pdata->wakeup_source)) >> device_init_wakeup(dev, true); >> >> + err = iio_read_mount_matrix(hw->dev, "mount-matrix", &hw->orientation); >> + if (err) >> + return err; >> + >> return 0; > > return iio_read_mount_matrix(hw->dev, "mount-matrix", > &hw->orientation); > >> } >> EXPORT_SYMBOL(st_lsm6dsx_probe); >> -- >> 2.20.1 >> thanks for reviewing Lorenzo. resending soon, martin