From patchwork Thu Sep 22 08:30:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 12984716 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4C8AC6FA82 for ; Thu, 22 Sep 2022 08:24:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229865AbiIVIYm (ORCPT ); Thu, 22 Sep 2022 04:24:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230266AbiIVIY2 (ORCPT ); Thu, 22 Sep 2022 04:24:28 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DCB7E1F9E6 for ; Thu, 22 Sep 2022 01:24:12 -0700 (PDT) Received: from dggpemm500023.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4MY7W63d0jzlXLv; Thu, 22 Sep 2022 16:20:02 +0800 (CST) Received: from dggpemm500007.china.huawei.com (7.185.36.183) by dggpemm500023.china.huawei.com (7.185.36.83) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Thu, 22 Sep 2022 16:24:10 +0800 Received: from huawei.com (10.175.103.91) by dggpemm500007.china.huawei.com (7.185.36.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Thu, 22 Sep 2022 16:24:10 +0800 From: Yang Yingliang To: CC: , Subject: [PATCH -next v2 1/6] spi: oc-tiny: Switch to use __devm_spi_alloc_controller() Date: Thu, 22 Sep 2022 16:30:58 +0800 Message-ID: <20220922083103.666157-2-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220922083103.666157-1-yangyingliang@huawei.com> References: <20220922083103.666157-1-yangyingliang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org With using __devm_spi_alloc_controller(), spi_controller_put() is called in devres_release_all() whenever the device is unbound, so the spi_master_put() in error path can be removed. Also replace spi_master_get_devdata() with spi_controller_get_devdata(). Signed-off-by: Yang Yingliang --- drivers/spi/spi-oc-tiny.c | 34 ++++++++++++++-------------------- 1 file changed, 14 insertions(+), 20 deletions(-) diff --git a/drivers/spi/spi-oc-tiny.c b/drivers/spi/spi-oc-tiny.c index 38c14c4e4e21..3514824f9f24 100644 --- a/drivers/spi/spi-oc-tiny.c +++ b/drivers/spi/spi-oc-tiny.c @@ -212,33 +212,31 @@ static int tiny_spi_probe(struct platform_device *pdev) { struct tiny_spi_platform_data *platp = dev_get_platdata(&pdev->dev); struct tiny_spi *hw; - struct spi_master *master; + struct spi_controller *ctlr; int err = -ENODEV; - master = spi_alloc_master(&pdev->dev, sizeof(struct tiny_spi)); - if (!master) + ctlr = __devm_spi_alloc_controller(&pdev->dev, sizeof(*hw), false); + if (!ctlr) return err; /* setup the master state. */ - master->bus_num = pdev->id; - master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; - master->setup = tiny_spi_setup; - master->use_gpio_descriptors = true; + ctlr->bus_num = pdev->id; + ctlr->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; + ctlr->setup = tiny_spi_setup; + ctlr->use_gpio_descriptors = true; - hw = spi_master_get_devdata(master); + hw = spi_controller_get_devdata(ctlr); platform_set_drvdata(pdev, hw); /* setup the state for the bitbang driver */ - hw->bitbang.master = master; + hw->bitbang.master = ctlr; hw->bitbang.setup_transfer = tiny_spi_setup_transfer; hw->bitbang.txrx_bufs = tiny_spi_txrx_bufs; /* find and map our resources */ hw->base = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(hw->base)) { - err = PTR_ERR(hw->base); - goto exit; - } + if (IS_ERR(hw->base)) + return PTR_ERR(hw->base); /* irq is optional */ hw->irq = platform_get_irq(pdev, 0); if (hw->irq >= 0) { @@ -246,7 +244,7 @@ static int tiny_spi_probe(struct platform_device *pdev) err = devm_request_irq(&pdev->dev, hw->irq, tiny_spi_irq, 0, pdev->name, hw); if (err) - goto exit; + return err; } /* find platform data */ if (platp) { @@ -255,20 +253,16 @@ static int tiny_spi_probe(struct platform_device *pdev) } else { err = tiny_spi_of_probe(pdev); if (err) - goto exit; + return err; } /* register our spi controller */ err = spi_bitbang_start(&hw->bitbang); if (err) - goto exit; + return err; dev_info(&pdev->dev, "base %p, irq %d\n", hw->base, hw->irq); return 0; - -exit: - spi_master_put(master); - return err; } static int tiny_spi_remove(struct platform_device *pdev)