From patchwork Mon Mar 14 22:54:39 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Lechner X-Patchwork-Id: 8584301 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id C7562C0553 for ; Mon, 14 Mar 2016 22:58:58 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F15A4202A1 for ; Mon, 14 Mar 2016 22:58:57 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0F595202AE for ; Mon, 14 Mar 2016 22:58:57 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1afbQZ-0005Y5-US; Mon, 14 Mar 2016 22:57:31 +0000 Received: from vern.gendns.com ([206.190.152.46]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1afbPq-0005Cc-KP for linux-arm-kernel@lists.infradead.org; Mon, 14 Mar 2016 22:56:48 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lechnology.com; s=default; h=References:In-Reply-To:Message-Id:Date:Subject :Cc:To:From; bh=wwHWj6PYKmNG4pq/GER2bP+J/LVF/wG3195EnwH4LNg=; b=aw4MpeD/fCu20 qdMIMFigMa1TWKEpaqs20or6cTVls/94pmrc5NZO4n6rxQH9RdOss3ry7mnO/sU9+wN9Z9H/DC0Bi K9QXsyF6jTYCYScnKlPDQz/wD7SrertLBpSBcHw8hewY0/Cxjey/1lMIX+UHCmqga+1ZKMVUr+Vtt h+QQFI8DdQqGKse13JOshSOqSwWmztA0rAb/SbmJO0q078p8Ow+wHRvpdALMrSkDidYhm2QLJ3k3M 224QMaswz7UEVtv/cwcbmIAvaNiCZto5STRKsXns9jsByPRF+epD69yEIJy3pT1PXZRZzt78WJmPt 364aUwz/JeKF2oBLjJYGQ==; Received: from 108-198-5-147.lightspeed.okcbok.sbcglobal.net ([108.198.5.147]:51177 helo=freyr.lechnology.com) by vern.gendns.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-SHA256:128) (Exim 4.86_1) (envelope-from ) id 1afbPU-000pzK-22; Mon, 14 Mar 2016 18:56:24 -0400 From: David Lechner To: nsekhar@ti.com Subject: [PATCH v2 3/5] mmc: davinci: prepare clock Date: Mon, 14 Mar 2016 17:54:39 -0500 Message-Id: <1457996081-21975-4-git-send-email-david@lechnology.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1457996081-21975-1-git-send-email-david@lechnology.com> References: <56E6BF7E.7020401@ti.com> <1457996081-21975-1-git-send-email-david@lechnology.com> X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vern.gendns.com X-AntiAbuse: Original Domain - lists.infradead.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - lechnology.com X-Get-Message-Sender-Via: vern.gendns.com: authenticated_id: davidmain+lechnology.com/only user confirmed/virtual account not confirmed X-Authenticated-Sender: vern.gendns.com: davidmain@lechnology.com X-Source: X-Source-Args: X-Source-Dir: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160314_155646_877535_75D6EA88 X-CRM114-Status: UNSURE ( 8.26 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.0 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ulf.hansson@linaro.org, David Lechner , khilman@kernel.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When trying to use this driver with the common clock framework, enabling the clock fails because it was not prepared. This fixes the problem by calling clk_prepare and clk_enable in a single function. Ditto for clk_disable_unprepare. Signed-off-by: David Lechner Acked-by: Sekhar Nori --- v2 changes: use clk_disable_unprepare where applicable. drivers/mmc/host/davinci_mmc.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c index 6dd9562..8d10a92 100644 --- a/drivers/mmc/host/davinci_mmc.c +++ b/drivers/mmc/host/davinci_mmc.c @@ -1273,9 +1273,9 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev) ret = PTR_ERR(host->clk); goto clk_get_fail; } - ret = clk_enable(host->clk); + ret = clk_prepare_enable(host->clk); if (ret) - goto clk_enable_fail; + goto clk_prepare_enable_fail; host->mmc_input_clk = clk_get_rate(host->clk); @@ -1375,8 +1375,8 @@ mmc_add_host_fail: mmc_davinci_cpufreq_deregister(host); cpu_freq_fail: davinci_release_dma_channels(host); - clk_disable(host->clk); -clk_enable_fail: + clk_disable_unprepare(host->clk); +clk_prepare_enable_fail: clk_get_fail: ioremap_fail: mmc_free_host(mmc); @@ -1391,7 +1391,7 @@ static int __exit davinci_mmcsd_remove(struct platform_device *pdev) mmc_remove_host(host->mmc); mmc_davinci_cpufreq_deregister(host); davinci_release_dma_channels(host); - clk_disable(host->clk); + clk_disable_unprepare(host->clk); mmc_free_host(host->mmc); return 0;