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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 6CB03C10F14 for ; Thu, 18 Apr 2019 13:42:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3D5DE2083D for ; Thu, 18 Apr 2019 13:42:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389324AbfDRNma (ORCPT ); Thu, 18 Apr 2019 09:42:30 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:33788 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389054AbfDRNm3 (ORCPT ); Thu, 18 Apr 2019 09:42:29 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7C68180D; Thu, 18 Apr 2019 06:42:29 -0700 (PDT) Received: from e110176-lin.kfn.arm.com (e110176-lin.kfn.arm.com [10.50.4.178]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D41233F5AF; Thu, 18 Apr 2019 06:42:27 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" Cc: Ofir Drang , stable@vger.kernel.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 33/35] crypto: ccree: HOST_POWER_DOWN_EN should be the last CC access during suspend Date: Thu, 18 Apr 2019 16:39:08 +0300 Message-Id: <20190418133913.9122-34-gilad@benyossef.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190418133913.9122-1-gilad@benyossef.com> References: <20190418133913.9122-1-gilad@benyossef.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org From: Ofir Drang 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+ --- drivers/crypto/ccree/cc_pm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/ccree/cc_pm.c b/drivers/crypto/ccree/cc_pm.c index 9a5abe406996..77025da2dcb6 100644 --- 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; } -- 2.21.0