From patchwork Tue May 7 09:12:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin GAIGNARD X-Patchwork-Id: 10932575 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1079013AD for ; Tue, 7 May 2019 09:12:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EFF0C28889 for ; Tue, 7 May 2019 09:12:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EE2A628970; Tue, 7 May 2019 09:12:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 119E228889 for ; Tue, 7 May 2019 09:12:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=Ig/DYjFmYglrL4LxTekPDhfSNF/bhBZjuw1kuBXHsg8=; b=mmGdWQQLy3lgJc pdS3PiL7z/BtlO/97wH7M71MEGJ0DdYEgJ+Or7sRZckaDBFdMc5kxhJzSQoWPPrDXGuPQ+xWmSB8o mZtk/Uj8g5JYiICyh4KxdZ0rDha3Hvk8nr7PpyRjE7OoduUsZ9Ky5keT8DWB0PZcffsq/iEEvYURJ 90a9kLjP7YxHngfRBHIuuPmULjIiWzSqRBT13fgCFTPsFgdTsVhYuscViHTt3O6t4bjiO6LIYw2kJ HpbCvOvyKV6xWnejoyvCpFP31wPC2R0vRwMh29ZXjsZWCsqInXFBoE3KTq9iAPw81rBMJx/U5RftW 8TUigr0GwnKPO6XBSZ5Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hNw9Z-0006iZ-4f; Tue, 07 May 2019 09:12:49 +0000 Received: from mx07-00178001.pphosted.com ([62.209.51.94]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hNw9V-0006hz-Gw for linux-arm-kernel@lists.infradead.org; Tue, 07 May 2019 09:12:47 +0000 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x479BuXH003642; Tue, 7 May 2019 11:12:36 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=STMicroelectronics; bh=OSWmrVuuFcUHBeWLjxnCf2tM/b2q7fucVTqUAzYwn6s=; b=nzBY8knpfdJ1kGKaNdXZAbnUmSZj6Dhx3tukY+IqMN2WP7BYMgy/v+NWhObmJWNdno3+ al6KjFoR1w0UklWFG6j9B2SvbJXqkJL6mNHo2YL1RRm+J6Af3XKMH90g1tODLBF4QDN3 7PVoic2fvqu3n7gS78q8sPRtktCLUYQIwV9MQhoPk0+bF8HlLcKzT9hYrtW9PUBxEDZf AGRSQVy+GSx7OT6tC4b6dpFNw5uQ0B08BctSYCMTl+pezyFRo2QJR89XBi/4qUBTLJPv 58zb847uLbPevDp21NYyY02vnpD9kZ8E6Xct8BPk2IsOmVMrX8r+wl8KKf/bNylE4mXw ag== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2s94cdegpx-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Tue, 07 May 2019 11:12:36 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 7DB0946; Tue, 7 May 2019 09:12:35 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas21.st.com [10.75.90.44]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 5495318A8; Tue, 7 May 2019 09:12:35 +0000 (GMT) Received: from SAFEX1HUBCAS24.st.com (10.75.90.95) by SAFEX1HUBCAS21.st.com (10.75.90.44) with Microsoft SMTP Server (TLS) id 14.3.361.1; Tue, 7 May 2019 11:12:35 +0200 Received: from localhost (10.201.20.122) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.439.0; Tue, 7 May 2019 11:12:34 +0200 From: Benjamin Gaignard To: , , , , , Subject: [PATCH] IIO: stm32: Remove quadrature related functions from trigger driver Date: Tue, 7 May 2019 11:12:24 +0200 Message-ID: <20190507091224.17781-1-benjamin.gaignard@st.com> X-Mailer: git-send-email 2.15.0 MIME-Version: 1.0 X-Originating-IP: [10.201.20.122] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-05-07_05:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190507_021246_041739_DC5F7603 X-CRM114-Status: GOOD ( 13.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Benjamin Gaignard , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, alexandre.torgue@st.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Quadrature feature is now hosted on it own framework. Remove quadrature related code from stm32-trigger driver to avoid code duplication and simplify the ABI. Signed-off-by: Benjamin Gaignard --- .../ABI/testing/sysfs-bus-iio-timer-stm32 | 23 ------ drivers/iio/trigger/stm32-timer-trigger.c | 84 ---------------------- 2 files changed, 107 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 index 161c147d3c40..b7259234ad70 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 +++ b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 @@ -91,29 +91,6 @@ Description: When counting down the counter start from preset value and fire event when reach 0. -What: /sys/bus/iio/devices/iio:deviceX/in_count_quadrature_mode_available -KernelVersion: 4.12 -Contact: benjamin.gaignard@st.com -Description: - Reading returns the list possible quadrature modes. - -What: /sys/bus/iio/devices/iio:deviceX/in_count0_quadrature_mode -KernelVersion: 4.12 -Contact: benjamin.gaignard@st.com -Description: - Configure the device counter quadrature modes: - channel_A: - Encoder A input servers as the count input and B as - the UP/DOWN direction control input. - - channel_B: - Encoder B input serves as the count input and A as - the UP/DOWN direction control input. - - quadrature: - Encoder A and B inputs are mixed to get direction - and count with a scale of 0.25. - What: /sys/bus/iio/devices/iio:deviceX/in_count_enable_mode_available KernelVersion: 4.12 Contact: benjamin.gaignard@st.com diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c index ccf1ce653b25..a5dfe65cd9b9 100644 --- a/drivers/iio/trigger/stm32-timer-trigger.c +++ b/drivers/iio/trigger/stm32-timer-trigger.c @@ -608,86 +608,6 @@ static const struct iio_enum stm32_enable_mode_enum = { .get = stm32_get_enable_mode }; -static const char *const stm32_quadrature_modes[] = { - "channel_A", - "channel_B", - "quadrature", -}; - -static int stm32_set_quadrature_mode(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan, - unsigned int mode) -{ - struct stm32_timer_trigger *priv = iio_priv(indio_dev); - - regmap_update_bits(priv->regmap, TIM_SMCR, TIM_SMCR_SMS, mode + 1); - - return 0; -} - -static int stm32_get_quadrature_mode(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan) -{ - struct stm32_timer_trigger *priv = iio_priv(indio_dev); - u32 smcr; - int mode; - - regmap_read(priv->regmap, TIM_SMCR, &smcr); - mode = (smcr & TIM_SMCR_SMS) - 1; - if ((mode < 0) || (mode > ARRAY_SIZE(stm32_quadrature_modes))) - return -EINVAL; - - return mode; -} - -static const struct iio_enum stm32_quadrature_mode_enum = { - .items = stm32_quadrature_modes, - .num_items = ARRAY_SIZE(stm32_quadrature_modes), - .set = stm32_set_quadrature_mode, - .get = stm32_get_quadrature_mode -}; - -static const char *const stm32_count_direction_states[] = { - "up", - "down" -}; - -static int stm32_set_count_direction(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan, - unsigned int dir) -{ - struct stm32_timer_trigger *priv = iio_priv(indio_dev); - u32 val; - int mode; - - /* In encoder mode, direction is RO (given by TI1/TI2 signals) */ - regmap_read(priv->regmap, TIM_SMCR, &val); - mode = (val & TIM_SMCR_SMS) - 1; - if ((mode >= 0) || (mode < ARRAY_SIZE(stm32_quadrature_modes))) - return -EBUSY; - - return regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_DIR, - dir ? TIM_CR1_DIR : 0); -} - -static int stm32_get_count_direction(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan) -{ - struct stm32_timer_trigger *priv = iio_priv(indio_dev); - u32 cr1; - - regmap_read(priv->regmap, TIM_CR1, &cr1); - - return ((cr1 & TIM_CR1_DIR) ? 1 : 0); -} - -static const struct iio_enum stm32_count_direction_enum = { - .items = stm32_count_direction_states, - .num_items = ARRAY_SIZE(stm32_count_direction_states), - .set = stm32_set_count_direction, - .get = stm32_get_count_direction -}; - static ssize_t stm32_count_get_preset(struct iio_dev *indio_dev, uintptr_t private, const struct iio_chan_spec *chan, @@ -728,10 +648,6 @@ static const struct iio_chan_spec_ext_info stm32_trigger_count_info[] = { .read = stm32_count_get_preset, .write = stm32_count_set_preset }, - IIO_ENUM("count_direction", IIO_SEPARATE, &stm32_count_direction_enum), - IIO_ENUM_AVAILABLE("count_direction", &stm32_count_direction_enum), - IIO_ENUM("quadrature_mode", IIO_SEPARATE, &stm32_quadrature_mode_enum), - IIO_ENUM_AVAILABLE("quadrature_mode", &stm32_quadrature_mode_enum), IIO_ENUM("enable_mode", IIO_SEPARATE, &stm32_enable_mode_enum), IIO_ENUM_AVAILABLE("enable_mode", &stm32_enable_mode_enum), IIO_ENUM("trigger_mode", IIO_SEPARATE, &stm32_trigger_mode_enum),