From patchwork Thu May 13 12:07:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 12255719 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 2969BC43460 for ; Thu, 13 May 2021 12:08:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 087CB611CC for ; Thu, 13 May 2021 12:08:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233627AbhEMMKD (ORCPT ); Thu, 13 May 2021 08:10:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40056 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233694AbhEMMJR (ORCPT ); Thu, 13 May 2021 08:09:17 -0400 Received: from mail-ed1-x52a.google.com (mail-ed1-x52a.google.com [IPv6:2a00:1450:4864:20::52a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A46F9C06138B for ; Thu, 13 May 2021 05:08:07 -0700 (PDT) Received: by mail-ed1-x52a.google.com with SMTP id b17so30716607ede.0 for ; Thu, 13 May 2021 05:08:07 -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=uQxvMGRCpOgSDyhSi99qzEO+Zt/+Ct8uEX5NstuSgr8=; b=sDl7yIMm4pEWQCTDiSVISdETV1aBbqNJuPkuYhkGporIoLkGNWG5+OfEvqrd5J7IOJ 2lMlz6Y4xi6tregmjPhnR90NJ6eKlr+OdGk/JZjQxb9WyJ9fUAaOsOeFpEx/48wmIqTV VqIZM2MWY8XrFDgm6uyB8uldiiaffeK2HjQtlwRSsqrOIPxWhZj3l2eNRq24F+IlbSq/ tcpv9/BOSGfPli+jIwRyADo338UIvr0sx+XfhorJ7xHgQf5Iv+tv76Y1cn2417rVHEFK O2RBwhuKxzRF8NQ7wcgfmCh9iqSYTCuMyZVpCXQeSn3Hd8afN6hUldjSgrnyllRjGNat X/Qg== 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=uQxvMGRCpOgSDyhSi99qzEO+Zt/+Ct8uEX5NstuSgr8=; b=UoPcRPIgCZcbbHwrGQpfbP8FKlVotfns+tyeSocTK2QSMffxH7lXESe+x+7x0PnOIK FFnRxTUvmuzh7Xct2PblXDJZxl0IIK9Ur4E1ObFLys0xLcWeDOHN2DzY9vMHwoHZ8sb2 Q26CKSxlFEuUgYKxj/0UkR9w2md0m6iCf4ob3+lxECn+BxjyeoMZRouNu3snGM7EiqEO egx3xoS9Z/IbZDJxHDyL7pT0DDKMUQd7bq4iuTOusejlSaMjQsUsLlM7xRDKUTlzdS8R mURjJ2ia5f2fSBo/gIKUzbQmL36zpn/G6zLKhM1QM6SbsWmEa1iLWJmkKYvNmA3IdWaT hRNg== X-Gm-Message-State: AOAM530mMfnwTgGTi3umgYMcZ16JK1r0HDilgt/nD0tmeSksCMPRz9P5 hc2enlGaDxk9s9TOwHT6QysD66nyeKkn2w== X-Google-Smtp-Source: ABdhPJxXlwbk4geynRS/x1HxuA+bLiCAXit3sXMtZNMNe9uYPyHRcU+H4FrDR+2YMT8G6sVKEQ4w7w== X-Received: by 2002:a50:f9cc:: with SMTP id a12mr50595743edq.24.1620907686069; Thu, 13 May 2021 05:08:06 -0700 (PDT) Received: from neptune.. ([5.2.193.191]) by smtp.gmail.com with ESMTPSA id ga28sm1717809ejc.20.2021.05.13.05.08.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 May 2021 05:08:05 -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 v4 07/12] iio: adc: ad7791: convert to device-managed functions Date: Thu, 13 May 2021 15:07:47 +0300 Message-Id: <20210513120752.90074-8-aardelean@deviqon.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210513120752.90074-1-aardelean@deviqon.com> References: <20210513120752.90074-1-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 AD7791 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/ad7791.c | 44 ++++++++++++---------------------------- 1 file changed, 13 insertions(+), 31 deletions(-) diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c index d57ad966e17c..cb579aa89f39 100644 --- a/drivers/iio/adc/ad7791.c +++ b/drivers/iio/adc/ad7791.c @@ -394,6 +394,11 @@ static int ad7791_setup(struct ad7791_state *st, st->mode); } +static void ad7791_reg_disable(void *reg) +{ + regulator_disable(reg); +} + static int ad7791_probe(struct spi_device *spi) { struct ad7791_platform_data *pdata = spi->dev.platform_data; @@ -420,11 +425,13 @@ static int ad7791_probe(struct spi_device *spi) if (ret) return ret; + ret = devm_add_action_or_reset(&spi->dev, ad7791_reg_disable, st->reg); + if (ret) + return ret; + st->info = &ad7791_chip_infos[spi_get_device_id(spi)->driver_data]; ad_sd_init(&st->sd, indio_dev, spi, &ad7791_sigma_delta_info); - 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->info->channels; @@ -434,39 +441,15 @@ static int ad7791_probe(struct spi_device *spi) else indio_dev->info = &ad7791_no_filter_info; - ret = ad_sd_setup_buffer_and_trigger(indio_dev); + ret = devm_ad_sd_setup_buffer_and_trigger(&spi->dev, indio_dev); if (ret) - goto error_disable_reg; + return ret; ret = ad7791_setup(st, pdata); if (ret) - goto error_remove_trigger; - - ret = iio_device_register(indio_dev); - if (ret) - goto error_remove_trigger; - - return 0; - -error_remove_trigger: - ad_sd_cleanup_buffer_and_trigger(indio_dev); -error_disable_reg: - regulator_disable(st->reg); - - return ret; -} - -static int ad7791_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct ad7791_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 ad7791_spi_ids[] = { @@ -484,7 +467,6 @@ static struct spi_driver ad7791_driver = { .name = "ad7791", }, .probe = ad7791_probe, - .remove = ad7791_remove, .id_table = ad7791_spi_ids, }; module_spi_driver(ad7791_driver);