From patchwork Tue Aug 22 13:12:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Zetao X-Patchwork-Id: 13360675 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 31966EE49A3 for ; Tue, 22 Aug 2023 13:13:26 +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=ew8gX9B8L6A7ZilsFDLSYGs6+0t/DMprwukg0SzD5/o=; b=Edpmtlv04C5xlE TXmdQtBHdML3vKPJfpeOITJWAZZjgrZKjUuQ/2haqXSXBNyfZdAB6aLUGrkU2DYMvEuomPz4va9Ot rYv/n5+OnLnEbtWaqsfLxsuhuftzp9UKsuMOCTTO/m5CEUzo5I6xMJR0elZLxTkRujhDwPOqHlRUB vjOc4MpjqC5HaV2VWOQNG11r2zrgLBPF5P6fDEZ3B/8Gbo+vLImW1TDXVtgRQJ7U3LrJgdlf9PneB /WcD3BEtMeOyaiI8FvQmVLOCZnZ0KTOj5wzkeKA5Vz4bRVKodcUeMThnrwwiwqhosFi1Uwo7HkeUe y4kV8YnTJAfOPNrrz2TA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYRBv-00FxXp-0H; Tue, 22 Aug 2023 13:13:03 +0000 Received: from szxga02-in.huawei.com ([45.249.212.188]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qYRBs-00FxVX-0I; Tue, 22 Aug 2023 13:13:02 +0000 Received: from kwepemi500012.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RVV6j1lnzzNnMw; Tue, 22 Aug 2023 21:09:17 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemi500012.china.huawei.com (7.221.188.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Tue, 22 Aug 2023 21:12:50 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH -next 02/25] spi: armada-3700: Use helper function devm_clk_get_prepared() Date: Tue, 22 Aug 2023 21:12:14 +0800 Message-ID: <20230822131237.1022815-3-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230822131237.1022815-1-lizetao1@huawei.com> References: <20230822131237.1022815-1-lizetao1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To kwepemi500012.china.huawei.com (7.221.188.12) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230822_061300_693220_10BC2325 X-CRM114-Status: GOOD ( 10.34 ) X-BeenThere: linux-amlogic@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-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Since commit 7ef9651e9792 ("clk: Provide new devm_clk helpers for prepared and enabled clocks"), devm_clk_get() and clk_prepare() can now be replaced by devm_clk_get_prepared() when driver prepares the clocks for the whole lifetime of the device. Moreover, it is no longer necessary to unprepare the clocks explicitly. Signed-off-by: Li Zetao --- drivers/spi/spi-armada-3700.c | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) diff --git a/drivers/spi/spi-armada-3700.c b/drivers/spi/spi-armada-3700.c index 0103ac0158c0..70113b9dab35 100644 --- a/drivers/spi/spi-armada-3700.c +++ b/drivers/spi/spi-armada-3700.c @@ -865,18 +865,12 @@ static int a3700_spi_probe(struct platform_device *pdev) init_completion(&spi->done); - spi->clk = devm_clk_get(dev, NULL); + spi->clk = devm_clk_get_prepared(dev, NULL); if (IS_ERR(spi->clk)) { dev_err(dev, "could not find clk: %ld\n", PTR_ERR(spi->clk)); goto error; } - ret = clk_prepare(spi->clk); - if (ret) { - dev_err(dev, "could not prepare clk: %d\n", ret); - goto error; - } - host->max_speed_hz = min_t(unsigned long, A3700_SPI_MAX_SPEED_HZ, clk_get_rate(spi->clk)); host->min_speed_hz = DIV_ROUND_UP(clk_get_rate(spi->clk), @@ -888,19 +882,17 @@ static int a3700_spi_probe(struct platform_device *pdev) dev_name(dev), host); if (ret) { dev_err(dev, "could not request IRQ: %d\n", ret); - goto error_clk; + goto error; } ret = devm_spi_register_controller(dev, host); if (ret) { dev_err(dev, "Failed to register host\n"); - goto error_clk; + goto error; } return 0; -error_clk: - clk_unprepare(spi->clk); error: spi_controller_put(host); out: @@ -909,10 +901,6 @@ static int a3700_spi_probe(struct platform_device *pdev) static void a3700_spi_remove(struct platform_device *pdev) { - struct spi_controller *host = platform_get_drvdata(pdev); - struct a3700_spi *spi = spi_controller_get_devdata(host); - - clk_unprepare(spi->clk); } static struct platform_driver a3700_spi_driver = {