From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 51FA5C3F2CD for ; Tue, 3 Mar 2020 02:50:32 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 10D5F246E7 for ; Tue, 3 Mar 2020 02:50:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="J7B+xuuo"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="E6pivyNM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 10D5F246E7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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=eTN/Det7eTxwgoR9SGM2XPl0U49YrVTJyX6ugFFlb+Y=; b=J7B+xuuoURQezs jf13UB0b+AYgJHckcdnNnr2lsyLg7fZ66AG7J6tZEDjpBYSKb0sYTzKR/5WweRixvD2W8neFjQwbl 1FGkNxy5E89V8JmgnQkgxxBy0Z7Yk23FfPLH4pI7eBrKuKfYCrdXv99XMaekFaTusjI4YOJetb1Oc I4CJzLltgIYuuQB5IfMKmNWGqMCJ/XfxEIUK2q8kv7USaaxx6LP5HpNAlMPJ6NlCQPS+C0YyNhJvv 55146+nJogEAcdgP5XdMekl2dw6eVZp+WfPQ8jPgt7KsX9YCKQXhj2FjoB0TIpPzPFmhVIrKExdtD caUzXjSFFGD+I0pGVeRw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j8xdf-0000Dl-IN; Tue, 03 Mar 2020 02:50:31 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j8xcz-00070z-MA for linux-arm-kernel@lists.infradead.org; Tue, 03 Mar 2020 02:49:51 +0000 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8A8FD24680; Tue, 3 Mar 2020 02:49:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583203788; bh=xrSwneQSyxbFcrpnGduhSn7IJJUdsBkAyHBLcwBerkc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=E6pivyNMi54ql+3wdJ95o6iZeZu317Hl3v6BFLrv/Pbh1jaZX0fT1qp9WBWN202Lw oeeOf4nLEp2pqWb0C7E8ORpq7yV8JvggsL/xakC3s/qEABdVHAYQ1nCE6odA7YfuxM XmPTtVm0ZGbzKNiUbFh60UwsdsmNSIhfBoFUYznk= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 11/22] net: phy: restore mdio regs in the iproc mdio driver Date: Mon, 2 Mar 2020 21:49:22 -0500 Message-Id: <20200303024933.10371-11-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200303024933.10371-1-sashal@kernel.org> References: <20200303024933.10371-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200302_184949_784700_5881A9DF X-CRM114-Status: GOOD ( 12.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , Andrew Lunn , Florian Fainelli , Scott Branden , netdev@vger.kernel.org, Arun Parameswaran , "David S . Miller" , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Arun Parameswaran [ Upstream commit 6f08e98d62799e53c89dbf2c9a49d77e20ca648c ] The mii management register in iproc mdio block does not have a retention register so it is lost on suspend. Save and restore value of register while resuming from suspend. Fixes: bb1a619735b4 ("net: phy: Initialize mdio clock at probe function") Signed-off-by: Arun Parameswaran Signed-off-by: Scott Branden Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/phy/mdio-bcm-iproc.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/net/phy/mdio-bcm-iproc.c b/drivers/net/phy/mdio-bcm-iproc.c index 46fe1ae919a30..51ce3ea17fb37 100644 --- a/drivers/net/phy/mdio-bcm-iproc.c +++ b/drivers/net/phy/mdio-bcm-iproc.c @@ -188,6 +188,23 @@ static int iproc_mdio_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_SLEEP +int iproc_mdio_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct iproc_mdio_priv *priv = platform_get_drvdata(pdev); + + /* restore the mii clock configuration */ + iproc_mdio_config_clk(priv->base); + + return 0; +} + +static const struct dev_pm_ops iproc_mdio_pm_ops = { + .resume = iproc_mdio_resume +}; +#endif /* CONFIG_PM_SLEEP */ + static const struct of_device_id iproc_mdio_of_match[] = { { .compatible = "brcm,iproc-mdio", }, { /* sentinel */ }, @@ -198,6 +215,9 @@ static struct platform_driver iproc_mdio_driver = { .driver = { .name = "iproc-mdio", .of_match_table = iproc_mdio_of_match, +#ifdef CONFIG_PM_SLEEP + .pm = &iproc_mdio_pm_ops, +#endif }, .probe = iproc_mdio_probe, .remove = iproc_mdio_remove, -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel