From patchwork Tue May 11 07:18:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 12249973 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 B1F82C433B4 for ; Tue, 11 May 2021 07:19:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 92BF161490 for ; Tue, 11 May 2021 07:19:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231200AbhEKHUF (ORCPT ); Tue, 11 May 2021 03:20:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35870 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231151AbhEKHT4 (ORCPT ); Tue, 11 May 2021 03:19:56 -0400 Received: from mail-ed1-x52e.google.com (mail-ed1-x52e.google.com [IPv6:2a00:1450:4864:20::52e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8DA36C061345 for ; Tue, 11 May 2021 00:18:44 -0700 (PDT) Received: by mail-ed1-x52e.google.com with SMTP id b17so21651695ede.0 for ; Tue, 11 May 2021 00:18:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=deviqon.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=uc0zdIjPCIp6p3E6v5GazM0pebh4DygGLW4ST5XuVM0=; b=Aru7+pGXL6R0fKf9Jmg/OM2Euu4Z/QeHfRHArxk3rw3BwaumbAzRhOyoJe/N5Qu53W mN0FLGnp4HHB7MsxdV0AlYQBRfXkpBZqM+v/48mq3w+veteFNtYcUUKch7BZayL8bu/7 Ji2hxG7MOGP4im1WkWf8U9Syq5wkJIRlK79ylF2bPhqnySZZZ8U7F+Kce2F2RfHjbImp ZGdme/cWDsPP1b4JHMcsaXoBZF+nMV2aUl7aDAIw+4Pi9FCk9ldD7exJAvm0l7NgKhKL UN6v4bl5LR6GmNOCfTYI3vFwut0LVPKyW/ACqsrb7D9aUxPSOqDhpeVQ9tisKz616oRU 4HmQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=uc0zdIjPCIp6p3E6v5GazM0pebh4DygGLW4ST5XuVM0=; b=Qz7lX6FyatH7Fpio+P5zOPblAGHOhEXoPXJi9jCxzcmOASIO+7mk3TsLztrMvGm7DW b4OEu29/LlkGZMWQwcWaO4whi8CNaV/PNex8KEqfnjJn5AIzWecKWIQtDZzBilu3ESil +LP73INbOcslm+bjOuzEJ5jzPpdCcsjrmwmur9A73uGkRFwAAGnS1gSKSeZpcNvnjCub +bSv+DrPd7WTENSqxL0c1OtvWQc8c8IpCVeKGOJv8Xh/15ZmP+e5yoV77+JGBRbxGUN5 emqoCck2JEjZWPj1OMSRo//BtkaSrcIa8gbb6g5Qx+uuxakhzZm7LoL9ACvwulz0p2H+ muWA== X-Gm-Message-State: AOAM531VVY6Y5CwL2H9vnMctU5IlRyUrQNw/ZWlW3mwrKt5Xpds4vEGD Q1xb3Gjz9iQY/oZLg52L/qBnkal1KptJaHma X-Google-Smtp-Source: ABdhPJxMfpNCThxaSXxZu/zeq9MhUQEZSVfqasIONNR0kSUdu0iZVVxhvo+41a/bkv+W/g4FsDm4Kw== X-Received: by 2002:a05:6402:3587:: with SMTP id y7mr34772094edc.197.1620717523129; Tue, 11 May 2021 00:18:43 -0700 (PDT) Received: from neptune.. ([188.27.131.122]) by smtp.gmail.com with ESMTPSA id i6sm13871558eds.83.2021.05.11.00.18.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 May 2021 00:18:42 -0700 (PDT) From: Alexandru Ardelean To: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: jic23@kernel.org, Jonathan.Cameron@huawei.com, alexandru.tachici@analog.com, linux@deviqon.com, Alexandru Ardelean Subject: [PATCH v2 08/12] iio: adc: ad7780: convert to device-managed functions Date: Tue, 11 May 2021 10:18:27 +0300 Message-Id: <20210511071831.576145-9-aardelean@deviqon.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210511071831.576145-1-aardelean@deviqon.com> References: <20210511071831.576145-1-aardelean@deviqon.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org With the devm_ad_sd_setup_buffer_and_trigger() helper, it's a bit easier now to convert the probe of the AD7780 driver to use device-managed functions. Only the regulator disable requires a devm_add_action_or_reset() callback. This change does that, cleaning up the driver a bit. Signed-off-by: Alexandru Ardelean --- drivers/iio/adc/ad7780.c | 38 ++++++++++---------------------------- 1 file changed, 10 insertions(+), 28 deletions(-) diff --git a/drivers/iio/adc/ad7780.c b/drivers/iio/adc/ad7780.c index 42e7e8e595d1..42bb952f4738 100644 --- a/drivers/iio/adc/ad7780.c +++ b/drivers/iio/adc/ad7780.c @@ -300,6 +300,11 @@ static int ad7780_init_gpios(struct device *dev, struct ad7780_state *st) return 0; } +static void ad7780_reg_disable(void *reg) +{ + regulator_disable(reg); +} + static int ad7780_probe(struct spi_device *spi) { struct ad7780_state *st; @@ -318,8 +323,6 @@ static int ad7780_probe(struct spi_device *spi) st->chip_info = &ad7780_chip_info_tbl[spi_get_device_id(spi)->driver_data]; - spi_set_drvdata(spi, indio_dev); - indio_dev->name = spi_get_device_id(spi)->name; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->channels = &st->chip_info->channel; @@ -340,35 +343,15 @@ static int ad7780_probe(struct spi_device *spi) return ret; } - ret = ad_sd_setup_buffer_and_trigger(indio_dev); + ret = devm_add_action_or_reset(&spi->dev, ad7780_reg_disable, st->reg); if (ret) - goto error_disable_reg; + return ret; - ret = iio_device_register(indio_dev); + ret = devm_ad_sd_setup_buffer_and_trigger(&spi->dev, indio_dev); if (ret) - goto error_cleanup_buffer_and_trigger; - - return 0; - -error_cleanup_buffer_and_trigger: - ad_sd_cleanup_buffer_and_trigger(indio_dev); -error_disable_reg: - regulator_disable(st->reg); - - return ret; -} - -static int ad7780_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct ad7780_state *st = iio_priv(indio_dev); - - iio_device_unregister(indio_dev); - ad_sd_cleanup_buffer_and_trigger(indio_dev); - - regulator_disable(st->reg); + return ret; - return 0; + return devm_iio_device_register(&spi->dev, indio_dev); } static const struct spi_device_id ad7780_id[] = { @@ -385,7 +368,6 @@ static struct spi_driver ad7780_driver = { .name = "ad7780", }, .probe = ad7780_probe, - .remove = ad7780_remove, .id_table = ad7780_id, }; module_spi_driver(ad7780_driver);