From patchwork Mon Jun 4 08:46:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 10446111 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 720B9600CA for ; Mon, 4 Jun 2018 08:47:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5A43128B45 for ; Mon, 4 Jun 2018 08:47:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4CA5D28B9A; Mon, 4 Jun 2018 08:47:17 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 87CDE28B45 for ; Mon, 4 Jun 2018 08:47:11 +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: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:In-Reply-To:References: List-Owner; bh=ZwbD48WlhLa+T3ZY0avhKBTOSGwWj2bdbzxrRYcWaQQ=; b=N1msyzQ/R+deoj Vi72wT7S1Zgie37jCDTdmg/EMe5k79WnGrs8+lPX/ZFRNuxLSvGbwg4t/L5Mrgj7dI3EPrqwUHSs4 7D9sMn+VGEaJBELqGNP6rvguhgNVVqUCZlW7Nf+B++EyyeA32dNf+PswphPtyvKJwAQK+flxtKYP5 woKQ9kxNDxufnqzWgS8KEOG/TXdH3fRGxueZYHWe7HitMGuSboQvbMcNFTm9aoLOoeisP6IktK1go xaVnWNE+OvCU7oA5rHhBl165s9lVi/5UHdhYzV8ljrC1qfloDaLrxRYpD3izZXo7nqHZlswy65P5c cCL0at4QjglQXOJaVDAg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fPl8l-0006Xv-5c; Mon, 04 Jun 2018 08:46:59 +0000 Received: from esa2.microchip.iphmx.com ([68.232.149.84]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fPl8h-0006VV-MM; Mon, 04 Jun 2018 08:46:57 +0000 X-IronPort-AV: E=Sophos;i="5.49,476,1520924400"; d="scan'208";a="14820780" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa2.microchip.iphmx.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 04 Jun 2018 01:46:44 -0700 Received: from m18063-ThinkPad-T460p.microchip.com (10.10.76.4) by chn-sv-exch07.mchp-main.com (10.10.76.108) with Microsoft SMTP Server id 14.3.352.0; Mon, 4 Jun 2018 01:46:43 -0700 From: Claudiu Beznea To: , , , , , , Subject: [PATCH v2] mtd: atmel-quadspi: add suspend/resume hooks Date: Mon, 4 Jun 2018 11:46:33 +0300 Message-ID: <1528101993-4772-1-git-send-email-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180604_014655_792063_270CFD75 X-CRM114-Status: UNSURE ( 7.43 ) 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: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Claudiu Beznea 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 Implement suspend/resume hooks. Signed-off-by: Claudiu Beznea Reviewed-by: Tudor Ambarus --- Changes in v2: - use __maybe_unused instead of #ifdef CONFIG_PM_SLEEP drivers/mtd/spi-nor/atmel-quadspi.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/mtd/spi-nor/atmel-quadspi.c b/drivers/mtd/spi-nor/atmel-quadspi.c index 6c5708bacad8..ceaaef47f02e 100644 --- a/drivers/mtd/spi-nor/atmel-quadspi.c +++ b/drivers/mtd/spi-nor/atmel-quadspi.c @@ -737,6 +737,26 @@ static int atmel_qspi_remove(struct platform_device *pdev) return 0; } +static int __maybe_unused atmel_qspi_suspend(struct device *dev) +{ + struct atmel_qspi *aq = dev_get_drvdata(dev); + + clk_disable_unprepare(aq->clk); + + return 0; +} + +static int __maybe_unused atmel_qspi_resume(struct device *dev) +{ + struct atmel_qspi *aq = dev_get_drvdata(dev); + + clk_prepare_enable(aq->clk); + + return atmel_qspi_init(aq); +} + +static SIMPLE_DEV_PM_OPS(atmel_qspi_pm_ops, atmel_qspi_suspend, + atmel_qspi_resume); static const struct of_device_id atmel_qspi_dt_ids[] = { { .compatible = "atmel,sama5d2-qspi" }, @@ -749,6 +769,7 @@ static struct platform_driver atmel_qspi_driver = { .driver = { .name = "atmel_qspi", .of_match_table = atmel_qspi_dt_ids, + .pm = &atmel_qspi_pm_ops, }, .probe = atmel_qspi_probe, .remove = atmel_qspi_remove,