From patchwork Wed Aug 16 04:50:53 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vignesh Raghavendra X-Patchwork-Id: 9902985 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 941E860231 for ; Wed, 16 Aug 2017 05:04:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7F50228862 for ; Wed, 16 Aug 2017 05:04:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7406428966; Wed, 16 Aug 2017 05:04:02 +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=-2.6 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_LOW 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 2358228862 for ; Wed, 16 Aug 2017 05:04:01 +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=ktpBJv8DflXk4HqpJ8fKs2i+ftc2O9FspdLkrPkULqg=; b=XsiUtDxTnIySeV E2NUaBcG0O/VXUoIXzo4GJdrKbpeNJGw2u7cPlAUAbHAuOYqM+5mU73N+wsZVsblTAiO4igYnkcKE r71gGtM3MX8yPKMymJeLe0V2ISdSj6jb4wev7jlhnb/vBbY7gNAU/3VxEciez5uhsWBcB7dYvXvxz 695GBew5YIVKLaQIkMFJ/z7J2fjQ8gEo+6wT0K9iWs6AyE3or1CwYFQgBgg/gbFrYR/BIdz8A+VcV llkI7lq45z3cbM2UCn/7hpUcujqaoRf0cNeMWSvEQju+z20td5Dd3/lbArN1AD0Y2O+PMgnmdSb6k fej/Xhj9bngW2l6uyCxQ==; 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 1dhqUc-00082A-HJ; Wed, 16 Aug 2017 05:03:46 +0000 Received: from lelnx194.ext.ti.com ([198.47.27.80]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dhqIr-0000Al-7W; Wed, 16 Aug 2017 04:51:46 +0000 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by lelnx194.ext.ti.com (8.15.1/8.15.1) with ESMTP id v7G4ovsL031529; Tue, 15 Aug 2017 23:50:57 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1502859057; bh=DNOQJSUbcrE+PRAWfqtRoEJMJNYt+FELCaVsX/SIWpo=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=q2xEeRu7zF34XEdbhwhn8hPIiK/1QI3tIOxP7qLjT7ROV8K3BUlb7MFOn5zoPCjVh DXzctpUXG5CdsEYyn6Q5EenzrD9/SKbXOZ+I4YN1ufRW2FGsAm7KSOkRPw9ETqHVr4 E/jxdMMBNOIaK4KxZL8xsNBT6iEPbZfMPrSEs3wo= Received: from DLEE101.ent.ti.com (dlee101.ent.ti.com [157.170.170.31]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id v7G4ouPt013196; Tue, 15 Aug 2017 23:50:56 -0500 Received: from DLEE101.ent.ti.com (157.170.170.31) by DLEE101.ent.ti.com (157.170.170.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.1.845.34; Tue, 15 Aug 2017 23:50:56 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DLEE101.ent.ti.com (157.170.170.31) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.845.34 via Frontend Transport; Tue, 15 Aug 2017 23:50:56 -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 v7G4oXQD031788; Tue, 15 Aug 2017 23:50:53 -0500 From: Vignesh R To: Marek Vasut , Cyrille Pitchen , Rob Herring Subject: [PATCH v2 5/5] mtd: spi-nor: cadence-quadspi: Add runtime PM support Date: Wed, 16 Aug 2017 10:20:53 +0530 Message-ID: <20170816045053.15492-6-vigneshr@ti.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20170816045053.15492-1-vigneshr@ti.com> References: <20170816045053.15492-1-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-20170815_215137_539661_15AF5A4F X-CRM114-Status: GOOD ( 10.16 ) 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, Richard Weinberger , linux-kernel@vger.kernel.org, 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 c11ced529ddd..4fd6fb9c83b3 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; }