From patchwork Mon May 20 12:13:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 164609 Delivered-To: patch@linaro.org Received: by 2002:a92:9e1a:0:0:0:0:0 with SMTP id q26csp220438ili; Mon, 20 May 2019 05:24:48 -0700 (PDT) X-Google-Smtp-Source: APXvYqx2J2bxX+VnRWAKIJMHoRzncf/c8xtFMuiOKFlkO9axH3DDpjvd/8N6Fnq+hzvO+ZK8hcxz X-Received: by 2002:a63:2118:: with SMTP id h24mr76011720pgh.320.1558355088245; Mon, 20 May 2019 05:24:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1558355088; cv=none; d=google.com; s=arc-20160816; b=OrqA7WY+rODAXKfjX45zkyEbUg8D1q+KC7dJYmToVn2zpo0YhTxwCrAWvJleyjAhm6 VYtvTf0zluSb22Qj3+EvMe2e/OgCPOsCL9Qoon3gp31Eba+/16I4W7OoU3JOX4VIrwp5 2IZN/6kJl4Lphw5huZDro27+p4A6iQVJluHGGcxEuuuxPRfHpPS0mPI3WpqzTKTyhxgu xPtoQZKidWioiy7OWMizk7CrBFbOGZknBxCGXYJ5s7TlEdav9nKEX0ArDB6wjNtv9dcx xIyG1RtRLxyeOSiVEvYSMo7BjlgSLzsHVkhL+P1ryXQgjVZalDT9Uwv+oFlhi0nDWQI2 ZXlA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=MQsQd7JjODRrsK+dQeyghBZyBB4P818m4ncJkixtdw8=; b=WFUb5Y703vS4DQHno159wt5/Pf4FytGihac33iPijTV6qGpqw/hVXZYsSTsnbAvjW5 d0fHmpaNKPUCUOnbngMhS9LlNrr5OD7qU58m+ViV1xPBbTIoNrPVEn/YmUjF8rwxrIuj 5avllc2PR1PDKKT4y9ORFAalE8VunAU4ABzx13v7cZgaWUmFtSlQ7Rr8f3Py2Wd7OvSI Mf1PUerv71TrP9KUxj7oFhqPbuDZ79hNUd8kYrbWUazbxQ3AMs1vThvmapwWlWRvu5bi kSWoDQKTZ0XXgoZkUPcsPny7wJqHnk8T1cg8j80t51eL28cN/nIkzwbmptD9I2dNHlVg GmVQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=ahne2PDQ; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f61si13018507plf.46.2019.05.20.05.24.47; Mon, 20 May 2019 05:24:48 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=ahne2PDQ; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388914AbfETMYr (ORCPT + 30 others); Mon, 20 May 2019 08:24:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:39666 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388502AbfETMYp (ORCPT ); Mon, 20 May 2019 08:24:45 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3568421479; Mon, 20 May 2019 12:24:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558355084; bh=N9QFeO4yQVMQCWzkv0CVm3igV/vAF6zg1t8BEEZGIbY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ahne2PDQSWZq8HCKGvhI9xFDo26wLPwCLzV+WBr0bt4q1qC263BVV18NUbP2uqZjU qYzafox2TF8bwAMoSxp0nrVpUabnPxRR+OS0uQjresGdHxLkQiS9+fcjjhcpzW3opX PI9D0xuJoKMaaqf5mVh3QLs4Kc8SchpI79wc/vzE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ofir Drang , Gilad Ben-Yossef , Herbert Xu Subject: [PATCH 4.19 050/105] crypto: ccree - HOST_POWER_DOWN_EN should be the last CC access during suspend Date: Mon, 20 May 2019 14:13:56 +0200 Message-Id: <20190520115250.492893602@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190520115247.060821231@linuxfoundation.org> References: <20190520115247.060821231@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ofir Drang commit 3499efbeed39d114873267683b9e776bcb34b058 upstream. During power management suspend the driver need to prepare the device for the power down operation and as a last indication write to the HOST_POWER_DOWN_EN register which signals to the hardware that The ccree is ready for power down. Signed-off-by: Ofir Drang Signed-off-by: Gilad Ben-Yossef Cc: stable@vger.kernel.org # v4.19+ Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- drivers/crypto/ccree/cc_pm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/crypto/ccree/cc_pm.c +++ b/drivers/crypto/ccree/cc_pm.c @@ -25,13 +25,13 @@ int cc_pm_suspend(struct device *dev) int rc; dev_dbg(dev, "set HOST_POWER_DOWN_EN\n"); - cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE); rc = cc_suspend_req_queue(drvdata); if (rc) { dev_err(dev, "cc_suspend_req_queue (%x)\n", rc); return rc; } fini_cc_regs(drvdata); + cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE); cc_clk_off(drvdata); return 0; }