From patchwork Tue Aug 1 04:54:30 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vignesh Raghavendra X-Patchwork-Id: 9873641 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 9BBF56038F for ; Tue, 1 Aug 2017 04:55:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8A96C285E3 for ; Tue, 1 Aug 2017 04:55:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 79FA228622; Tue, 1 Aug 2017 04:55:36 +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=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE 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 03D0F285E3 for ; Tue, 1 Aug 2017 04:55:35 +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=asyMDWsTGDgVbSde0EOYFEu6ghX+CPSQMr1ruKTKHbc=; b=XJ8qksGc3OWKmI aYSjl4uaz10WnFMm6ObhL2wgr2cY+dWUrh/9eZw+tKRvVAuS/OpyMJonZ+w7ZpM8Iz2rcJc7Nku6+ IYVfOmkXynudKftvfxNlFXVoxhtnm8C0BNFKOyxUYg3NgPAaiahKGLIm8uDBWaFmSrULkuSt9b7ML tOuFmnA/Ef1hhupyQNnewuhT17gkR5ODVcD37MhHy/Nsf19+KSbHvmC8if7wsFpw0vt79d3AX6uvR SZW88eM6ICrF1Tt4xPa2WXW9Ae2eVt92SZeQ6bkhoCEC9WIEp2dfsShGnbuQrxGJTUNhLA0G7M+KK hgJIET9JQZf3rzZ/No2w==; 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 1dcPDL-0001bE-P3; Tue, 01 Aug 2017 04:55:27 +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 1dcPDH-0000HL-VG; Tue, 01 Aug 2017 04:55:25 +0000 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by lelnx194.ext.ti.com (8.15.1/8.15.1) with ESMTP id v714sbJW011128; Mon, 31 Jul 2017 23:54:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1501563277; bh=hXKcwsMvyLD5foMV5dXJ5Ljuki/k+uGlkdBA47+7TH0=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=ynTQ6ed84oCnp1JrVzR1vSVkJTo4MdqLs/qxPw691LhZSDU1dQhUpZxGUTBjLbxOd O4HPBi8CvlLU+ZHdV2GgdqgF4ArPCKp+xHlfsjjds0XpDNDpu7/S5J86IuyuqTSQin QVw8MZj/e2giohqui1dvqFpRVVB0VpHblV8VI6Os= Received: from DLEE70.ent.ti.com (dlemailx.itg.ti.com [157.170.170.113]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id v714sbWh030999; Mon, 31 Jul 2017 23:54:37 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.3.294.0; Mon, 31 Jul 2017 23:54:37 -0500 Received: from a0132425.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id v714sN9I027903; Mon, 31 Jul 2017 23:54:34 -0500 From: Vignesh R To: Marek Vasut , Cyrille Pitchen , Rob Herring , Santosh Shilimkar Subject: [PATCH 3/7] mtd: spi-nor: cadence-quadspi: Add runtime PM support Date: Tue, 1 Aug 2017 10:24:30 +0530 Message-ID: <20170801045434.8733-4-vigneshr@ti.com> X-Mailer: git-send-email 2.13.3 In-Reply-To: <20170801045434.8733-1-vigneshr@ti.com> References: <20170801045434.8733-1-vigneshr@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170731_215524_169143_5DA652A9 X-CRM114-Status: GOOD ( 10.89 ) 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: devicetree@vger.kernel.org, Vignesh R , linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, Brian Norris , David Woodhouse , linux-arm-kernel@lists.infradead.org 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 297c86a2d4a7..1e432916e00b 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 @@ -1219,6 +1220,13 @@ 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"); @@ -1269,6 +1277,9 @@ 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; }