From patchwork Fri Dec 19 13:55:25 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sylwester Nawrocki/Kernel \\(PLT\\) /SRPOL/Staff Engineer/Samsung Electronics" X-Patchwork-Id: 5519671 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id D6F0F9F30B for ; Fri, 19 Dec 2014 14:01:20 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 074342010E for ; Fri, 19 Dec 2014 14:01:20 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5341C20131 for ; Fri, 19 Dec 2014 14:01:14 +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 1Y1y4R-0003ME-38; Fri, 19 Dec 2014 13:58:19 +0000 Received: from mailout2.samsung.com ([203.254.224.25]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Y1y3s-0002ua-8N for linux-arm-kernel@lists.infradead.org; Fri, 19 Dec 2014 13:57:44 +0000 Received: from epcpsbgm1.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NGU00KTT1FMTV60@mailout2.samsung.com> for linux-arm-kernel@lists.infradead.org; Fri, 19 Dec 2014 22:57:22 +0900 (KST) X-AuditID: cbfee61a-f79c06d000004e71-05-54942ec2935a Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 3A.14.20081.2CE24945; Fri, 19 Dec 2014 22:57:22 +0900 (KST) Received: from amdc1344.digital.local ([106.116.147.32]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0NGU00HVQ1CREV30@mmp2.samsung.com>; Fri, 19 Dec 2014 22:57:22 +0900 (KST) From: Sylwester Nawrocki To: broonie@kernel.org, kgene@kernel.org, alsa-devel@alsa-project.org Subject: [PATCH v2 05/16] ASoC: samsung: i2s: Move clk_get() to platform driver probe() Date: Fri, 19 Dec 2014 14:55:25 +0100 Message-id: <1418997336-17777-6-git-send-email-s.nawrocki@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1418997336-17777-1-git-send-email-s.nawrocki@samsung.com> References: <1418997336-17777-1-git-send-email-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrELMWRmVeSWpSXmKPExsVy+t9jQd1DelNCDGYuV7e4cvEQk8XUh0/Y LOYfOcdq8Wj+Y2aL/sevmS02Pb7GajHj/D4mi983v7NZHH7TzmpxccUXJgcujw2fm9g8Fn3P 8ti0qpPNY/OSeo++LasYPT5vkgtgi+KySUnNySxLLdK3S+DK2POCq2COcEV/8wO2BsY7/F2M nBwSAiYS6w+eYISwxSQu3FvP1sXIxSEkMJ1R4t78NawQTgeTxPWvi1lBqtgEDCV6j/aBdYgI uEo8/n+TBaSIWeAao8SLT1PYuxg5OIQFIiUmH/UBMVkEVCUu9WuAlPMKuEls3XCVGSQsIaAg MWeSDYjJKeAusWypB0iFEFDF9hPb2SYw8i5gZFjFKJpakFxQnJSea6hXnJhbXJqXrpecn7uJ ERxyz6R2MK5ssDjEKMDBqMTD21E4OUSINbGsuDL3EKMEB7OSCO9H4SkhQrwpiZVVqUX58UWl OanFhxilOViUxHmV7NtChATSE0tSs1NTC1KLYLJMHJxSDYy8m9rjQ59zJ5n3v5dMfHLk9W7j ykunL8yb+Okdp036+6Y/herlXLkBwVxs7/S7ZP/xHsrwbZ+f/t7xXvNEwd9+vAknFiu2zpNw eDeb24OZSSPtx3b/zjkW2vq9x7PqAzNuzzQT/v6icu6TqF/Jc2b+DA7ykO+N4GGZ12LuW+m+ e2LcVH3LFiWW4oxEQy3mouJEAKsPl2Q1AgAA X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141219_055744_486268_05C266F5 X-CRM114-Status: GOOD ( 13.27 ) X-Spam-Score: -5.0 (-----) Cc: devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org, padma.v@samsung.com, sbkim73@samsung.com, drake@endlessm.com, Sylwester Nawrocki , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 Acquire the I2S interface clock in driver probe() callback as it's a per-device not a per-DAI clock. While at it switch to the resource managed clk_get(). Signed-off-by: Sylwester Nawrocki --- sound/soc/samsung/i2s.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index 6c7f956..7f967b2 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -971,18 +971,12 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai) struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai; int ret; - if (other && other->clk) { /* If this is probe on secondary */ + if (is_secondary(i2s)) { /* If this is probe on the secondary DAI */ samsung_asoc_init_dma_data(dai, &other->sec_dai->dma_playback, NULL); goto probe_exit; } - i2s->clk = clk_get(&i2s->pdev->dev, "iis"); - if (IS_ERR(i2s->clk)) { - dev_err(&i2s->pdev->dev, "failed to get i2s_clock\n"); - return PTR_ERR(i2s->clk); - } - ret = clk_prepare_enable(i2s->clk); if (ret != 0) { dev_err(&i2s->pdev->dev, "failed to enable clock: %d\n", ret); @@ -991,10 +985,6 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai) samsung_asoc_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture); - if (other) { - other->clk = i2s->clk; - } - if (i2s->quirks & QUIRK_NEED_RSTCLR) writel(CON_RSTCLR, i2s->addr + I2SCON); @@ -1032,7 +1022,6 @@ static int samsung_i2s_dai_remove(struct snd_soc_dai *dai) writel(0, i2s->addr + I2SCON); clk_disable_unprepare(i2s->clk); - clk_put(i2s->clk); } i2s->clk = NULL; @@ -1222,6 +1211,11 @@ static int samsung_i2s_probe(struct platform_device *pdev) regs_base = res->start; + pri_dai->clk = devm_clk_get(&pdev->dev, "iis"); + if (IS_ERR(pri_dai->clk)) { + dev_err(&pdev->dev, "Failed to get iis clock\n"); + return PTR_ERR(pri_dai->clk); + } pri_dai->dma_playback.dma_addr = regs_base + I2STXD; pri_dai->dma_capture.dma_addr = regs_base + I2SRXD; pri_dai->dma_playback.ch_name = "tx"; @@ -1253,6 +1247,7 @@ static int samsung_i2s_probe(struct platform_device *pdev) sec_dai->dma_playback.dma_size = 4; sec_dai->addr = pri_dai->addr; + sec_dai->clk = pri_dai->clk; sec_dai->quirks = quirks; sec_dai->idma_playback.dma_addr = idma_addr; sec_dai->pri_dai = pri_dai;