From patchwork Fri Aug 25 10:57:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13365440 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 32C24C71133 for ; Fri, 25 Aug 2023 10:59:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=CQJ7qTgo1twSfJIrNKaYE4Gg3K9dGFomcvZDF86cd8s=; b=RdPyIjSZXFPL2Q uvwA8QvpbJt/uNBg46A6uUQMcOUEsUlHqCqM05l1tWar18FaB19j7i/HP56cJ0gxbIhjKGGzLHm9v dnPPYH3Hxdoh0ZFlW3HW+8+7wcQiy7QYkINPR6td/bUeUTcb8BhFY4ezgx95PZQlf6W1pZYLrffPI 9t2F5i/FO+OGZAnsHne7X73Cvl44uBxBLSeKw+k7MMtCv/KQYMZU16lUuAYt774VSSIUVOAfVha7j xgSis0TNMetKNvxENtaOZbBG98XG0VbedbuKnUL39APbX1fXbqZo/BjIsf47Wss2VeLYfxZLuPg7V OEcgEZzEGtBarKbRyXag==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZUWQ-004x2T-15; Fri, 25 Aug 2023 10:58:34 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qZUW6-004wmh-1U; Fri, 25 Aug 2023 10:58:17 +0000 Received: from kwepemi500008.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4RXGzj3jf7ztSJw; Fri, 25 Aug 2023 18:54:25 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemi500008.china.huawei.com (7.221.188.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Fri, 25 Aug 2023 18:58:11 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , CC: Subject: [PATCH -next 4/4] iio: frequency: adf4350: Use devm_clk_get_enabled() helper function Date: Fri, 25 Aug 2023 18:57:46 +0800 Message-ID: <20230825105746.2999548-5-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230825105746.2999548-1-ruanjinjie@huawei.com> References: <20230825105746.2999548-1-ruanjinjie@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemi500008.china.huawei.com (7.221.188.139) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230825_035814_721959_312F18F3 X-CRM114-Status: GOOD ( 11.29 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code. Signed-off-by: Jinjie Ruan --- drivers/iio/frequency/adf4350.c | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-) diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c index 85e289700c3c..22330d1768ff 100644 --- a/drivers/iio/frequency/adf4350.c +++ b/drivers/iio/frequency/adf4350.c @@ -491,20 +491,14 @@ static int adf4350_probe(struct spi_device *spi) } if (!pdata->clkin) { - clk = devm_clk_get(&spi->dev, "clkin"); + clk = devm_clk_get_enabled(&spi->dev, "clkin"); if (IS_ERR(clk)) - return -EPROBE_DEFER; - - ret = clk_prepare_enable(clk); - if (ret < 0) - return ret; + return PTR_ERR(clk); } indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); - if (indio_dev == NULL) { - ret = -ENOMEM; - goto error_disable_clk; - } + if (indio_dev == NULL) + return -ENOMEM; st = iio_priv(indio_dev); @@ -512,7 +506,7 @@ static int adf4350_probe(struct spi_device *spi) if (!IS_ERR(st->reg)) { ret = regulator_enable(st->reg); if (ret) - goto error_disable_clk; + return ret; } spi_set_drvdata(spi, indio_dev); @@ -564,8 +558,6 @@ static int adf4350_probe(struct spi_device *spi) error_disable_reg: if (!IS_ERR(st->reg)) regulator_disable(st->reg); -error_disable_clk: - clk_disable_unprepare(clk); return ret; } @@ -581,8 +573,6 @@ static void adf4350_remove(struct spi_device *spi) iio_device_unregister(indio_dev); - clk_disable_unprepare(st->clk); - if (!IS_ERR(reg)) regulator_disable(reg); }