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=-8.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 31D04C43381 for ; Thu, 21 Feb 2019 17:03:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F1E652084D for ; Thu, 21 Feb 2019 17:03:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=goldelico.com header.i=@goldelico.com header.b="r8DwQJuC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728384AbfBURDE (ORCPT ); Thu, 21 Feb 2019 12:03:04 -0500 Received: from mo4-p03-ob.smtp.rzone.de ([85.215.255.100]:17816 "EHLO mo4-p03-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725823AbfBURDD (ORCPT ); Thu, 21 Feb 2019 12:03:03 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1550768579; s=strato-dkim-0002; d=goldelico.com; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=//btGGaAqs4z3lpgjAd0R0OMrIOkVfOP9OUmFGNPP7M=; b=r8DwQJuCm8tT5H6HvWXbtdLJQXrpoK58VTR7wX5b1/st+FDAseGuS0v1Wr1DZrDO/A QI4lwPPxmRkyIUFG74JVdzgOhcnmi0eYGVhORbv+hUswxJOz8rNxBbQ3sQfJLENfujJr d6QJ12bsCNvAfQTp9w9sJe9KKTV/U6c3lDM9AHoeGXEAoVuXlOHe17TTlVqTAYf3sZal 6OW7NqW+SlTJOxGUSyMkxmZJQPIBdlorhXoNN425Zu0711iDGxDw/+SZNvmJ0SucA1Oj qDBjpwi+MVQyF919tPBc9uLzsKkwQg4PF6gNetW4FQNoLkw4iZsdemi5Q+bItSw+d4OS RTWQ== X-RZG-AUTH: ":JGIXVUS7cutRB/49FwqZ7WcJeFKiMhflhwDubTJ9o1OAA2UNf2MzNl43D1ri" X-RZG-CLASS-ID: mo00 Received: from iMac.fritz.box by smtp.strato.de (RZmta 44.9 DYNA|AUTH) with ESMTPSA id 608499v1LH2wLXE (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (curve secp521r1 with 521 ECDH bits, eq. 15360 bits RSA)) (Client did not present a certificate); Thu, 21 Feb 2019 18:02:58 +0100 (CET) From: "H. Nikolaus Schaller" To: Linus Walleij , Jonathan Cameron , Rob Herring , Mark Rutland , "H. Nikolaus Schaller" , Andy Shevchenko , Charles Keepax , Song Qiang , Jean-Baptiste Maneyrol , Martin Kelly , Jonathan Marek , Brian Masney , Stephan Gerhold Cc: letux-kernel@openphoenux.org, Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 03/10] iio: accel: bmc150: add mount matrix support Date: Thu, 21 Feb 2019 18:02:48 +0100 Message-Id: <5d256b403997704072ea5f5889a63adfe67b3a86.1550768574.git.hns@goldelico.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch allows to read a mount-matrix device tree property and report to user-space or in-kernel iio clients. Signed-off-by: H. Nikolaus Schaller --- drivers/iio/accel/bmc150-accel-core.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c index 383c802eb5b8..b4e2d9b04e1d 100644 --- a/drivers/iio/accel/bmc150-accel-core.c +++ b/drivers/iio/accel/bmc150-accel-core.c @@ -204,6 +204,7 @@ struct bmc150_accel_data { int ev_enable_state; int64_t timestamp, old_timestamp; /* Only used in hw fifo mode. */ const struct bmc150_accel_chip_info *chip_info; + struct iio_mount_matrix orientation; }; static const struct { @@ -796,6 +797,20 @@ static ssize_t bmc150_accel_get_fifo_state(struct device *dev, return sprintf(buf, "%d\n", state); } +static const struct iio_mount_matrix * +bmc150_accel_get_mount_matrix(const struct iio_dev *indio_dev, + const struct iio_chan_spec *chan) +{ + struct bmc150_accel_data *data = iio_priv(indio_dev); + + return &data->orientation; +} + +static const struct iio_chan_spec_ext_info bmc150_accel_ext_info[] = { + IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, bmc150_accel_get_mount_matrix), + { } +}; + static IIO_CONST_ATTR(hwfifo_watermark_min, "1"); static IIO_CONST_ATTR(hwfifo_watermark_max, __stringify(BMC150_ACCEL_FIFO_LENGTH)); @@ -978,6 +993,7 @@ static const struct iio_event_spec bmc150_accel_event = { .shift = 16 - (bits), \ .endianness = IIO_LE, \ }, \ + .ext_info = bmc150_accel_ext_info, \ .event_spec = &bmc150_accel_event, \ .num_event_specs = 1 \ } @@ -1555,6 +1571,11 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq, data->regmap = regmap; + ret = iio_read_mount_matrix(dev, "mount-matrix", + &data->orientation); + if (ret) + return ret; + ret = bmc150_accel_chip_init(data); if (ret < 0) return ret; -- 2.19.1