From patchwork Sun Sep 24 10:59:24 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vignesh Raghavendra X-Patchwork-Id: 9967929 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 7B19F6020C for ; Sun, 24 Sep 2017 11:04:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6BCEC28D3A for ; Sun, 24 Sep 2017 11:04:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5D27828D44; Sun, 24 Sep 2017 11:04:59 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D907D28D3A for ; Sun, 24 Sep 2017 11:04:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=0rE0xBqbUxnBWem6HFXDRWliXh3EeG6n8x37wjSPyAQ=; b=ff7YbEk/YFi6AC n0yFXOTpSYYsdteUWO0CY4MCWX7pBYfb7Iak6DAb897nySuTVbvqgRoWJqv1l7NgOzbkOvVLvCt6E trub2C+xdsq+byzOdBjig/wn3c2Ax4lvXzCwrBxOeAFzYA4Zabf46NMYXdK+7ZIh51E8DcMyKogYf gBnj56efxbqgubf2nz6qtJW6rNokd/GQh6zP2rI10hpISz+YdnZU444p8zgZ7HghRj2VGMU0Tf4NU XCDINJ2Dy3PhwtOEquWcaMgNGc+y+Wo9QSldw8FtIJ+4HBX7g+R4o8REFckWYZfyknJX7V0YKObpy NuQQ4w8lz+P8C41eRNHA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dw4iT-0007ib-VT; Sun, 24 Sep 2017 11:04:54 +0000 Received: from lelnx193.ext.ti.com ([198.47.27.77]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dw4e0-0002v9-3r; Sun, 24 Sep 2017 11:00:21 +0000 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by lelnx193.ext.ti.com (8.15.1/8.15.1) with ESMTP id v8OAxPqD011996; Sun, 24 Sep 2017 05:59:25 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1506250765; bh=zV4c/4caPxwqj4yx7JMtImiEhyv3FIGveVJKMBmPfCo=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=G0oNaV8+4YqAIMiDbY0VdTUqofnnBEUFV50hoi8ykJCUi0qxusa+9n84XTdQyy4oA xY64A7LT9D4Qpg0kDIQeCYX+NGGPqFK3cdArjNpVAqAosltZFtiyJr7pcsVmAru+P/ GTZS28QzRTpX8d/Vsp1wqHDkTxOXeGCI4bEjlec0= Received: from DFLE109.ent.ti.com (dfle109.ent.ti.com [10.64.6.30]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id v8OAxPPP016147; Sun, 24 Sep 2017 05:59:25 -0500 Received: from DFLE105.ent.ti.com (10.64.6.26) by DFLE109.ent.ti.com (10.64.6.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.1.845.34; Sun, 24 Sep 2017 05:59:24 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DFLE105.ent.ti.com (10.64.6.26) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.845.34 via Frontend Transport; Sun, 24 Sep 2017 05:59:24 -0500 Received: from a0132425.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id v8OAx4DI027688; Sun, 24 Sep 2017 05:59:21 -0500 From: Vignesh R To: Marek Vasut , Cyrille Pitchen Subject: [PATCH v3 5/5] mtd: spi-nor: cadence-quadspi: Add runtime PM support Date: Sun, 24 Sep 2017 16:29:24 +0530 Message-ID: <20170924105924.23923-6-vigneshr@ti.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20170924105924.23923-1-vigneshr@ti.com> References: <20170924105924.23923-1-vigneshr@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170924_040017_427334_EF2CF0D5 X-CRM114-Status: UNSURE ( 9.93 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Boris Brezillon , Vignesh R , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Rob Herring , linux-mtd@lists.infradead.org, Brian Norris , David Woodhouse , linux-arm-kernel Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add pm_runtime* calls to cadence-quadspi driver. This is required to switch on QSPI power domain on TI 66AK2G SoC during probe. Signed-off-by: Vignesh R --- drivers/mtd/spi-nor/cadence-quadspi.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/mtd/spi-nor/cadence-quadspi.c b/drivers/mtd/spi-nor/cadence-quadspi.c index d9629e8f4798..2c8e6226d267 100644 --- a/drivers/mtd/spi-nor/cadence-quadspi.c +++ b/drivers/mtd/spi-nor/cadence-quadspi.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include @@ -1224,6 +1225,13 @@ static int cqspi_probe(struct platform_device *pdev) return -ENXIO; } + pm_runtime_enable(&pdev->dev); + ret = pm_runtime_get_sync(&pdev->dev); + if (ret < 0) { + pm_runtime_put_noidle(&pdev->dev); + return ret; + } + ret = clk_prepare_enable(cqspi->clk); if (ret) { dev_err(dev, "Cannot enable QSPI clock.\n"); @@ -1275,6 +1283,9 @@ static int cqspi_remove(struct platform_device *pdev) clk_disable_unprepare(cqspi->clk); + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); + return 0; }