From patchwork Mon Feb 20 21:12:29 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris Brezillon X-Patchwork-Id: 730217 X-Patchwork-Delegate: boris.brezillon@free-electrons.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3vRxGt5S8Mz9s8L for ; Tue, 21 Feb 2017 08:15:02 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="fkUQjD4j"; dkim-atps=neutral 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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=spRlwGMN4NYKmTwXh8OQd+ZqnbM0gib19jSMqlFNmo8=; b=fkUQjD4j3gKkgWAX6tpRY5alMT W5fvC9G+jaKM4pjHCrwXnzo9Cm40dVRSeuiByIroOgzgCMmQBKwCLiWWxlpyCWOKadeA4QgvQp8WH xgJHLwy9jbaQcJYraEvW9d3pXiPoUqixBC3FjDd0dgJlZ23ZVDY6rqNa92UgIV/5prmh/7aCAoBw9 5yZ2e/JlzGfDSNRAlM8yDoZBQHZZnjzoEieIXiSU1URo4KsYJuVgGz25K+0BsnPZr9onXTXJ6FGFo dkLQOLbfTVARJvNlFFgxCexxFP5DX0Fi/muEKdxsdJnG1rqIR74JsyYNPpS3lLdEceydv3hh05c+n YnquqlmQ==; 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 1cfvIQ-0001Ht-1U; Mon, 20 Feb 2017 21:14:58 +0000 Received: from mail.free-electrons.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cfvGq-0000Si-PN; Mon, 20 Feb 2017 21:13:23 +0000 Received: by mail.free-electrons.com (Postfix, from userid 110) id 00317207D7; Mon, 20 Feb 2017 22:12:59 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.free-electrons.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT, URIBL_BLOCKED shortcircuit=ham autolearn=disabled version=3.4.0 Received: from bbrezillon.home (LFbn-1-2159-240.w90-76.abo.wanadoo.fr [90.76.216.240]) by mail.free-electrons.com (Postfix) with ESMTPSA id A7962207C0; Mon, 20 Feb 2017 22:12:59 +0100 (CET) From: Boris Brezillon To: Boris Brezillon , Richard Weinberger , linux-mtd@lists.infradead.org, Sascha Hauer , Sergio Prado , Marc Gonzalez , Wenyou Yang , Josh Wu Subject: [RESEND PATCH 3/3] mtd: nand: atmel: Add PM ops Date: Mon, 20 Feb 2017 22:12:29 +0100 Message-Id: <1487625149-7234-4-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1487625149-7234-1-git-send-email-boris.brezillon@free-electrons.com> References: <1487625149-7234-1-git-send-email-boris.brezillon@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170220_131321_054692_AB77DC3A X-CRM114-Status: GOOD ( 11.32 ) X-Spam-Score: -1.9 (-) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-1.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, Krzysztof Kozlowski , Marek Vasut , Cyrille Pitchen , Brian Norris , David Woodhouse , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Provide a ->resume() hook to make sure the NAND timings are correctly restored by resetting all chips connected to the controller. Signed-off-by: Boris Brezillon --- drivers/mtd/nand/atmel/nand-controller.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/mtd/nand/atmel/nand-controller.c b/drivers/mtd/nand/atmel/nand-controller.c index ae46ef711d67..cd107e6edcbc 100644 --- a/drivers/mtd/nand/atmel/nand-controller.c +++ b/drivers/mtd/nand/atmel/nand-controller.c @@ -2575,6 +2575,24 @@ static int atmel_nand_controller_remove(struct platform_device *pdev) return nc->caps->ops->remove(nc); } +static int atmel_nand_controller_resume(struct device *dev) +{ + struct atmel_nand_controller *nc = dev_get_drvdata(dev); + struct atmel_nand *nand; + + list_for_each_entry(nand, &nc->chips, node) { + int i; + + for (i = 0; i < nand->numcs; i++) + nand_reset(&nand->base, i); + } + + return 0; +} + +static SIMPLE_DEV_PM_OPS(atmel_nand_controller_pm_ops, NULL, + atmel_nand_controller_resume); + static struct platform_driver atmel_nand_controller_driver = { .driver = { .name = "atmel-nand-controller",