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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 56D09C43603 for ; Thu, 19 Dec 2019 18:55:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1AFC02468A for ; Thu, 19 Dec 2019 18:55:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576781738; bh=qGRvROEzM3vlKI0jA+ExRsSkpch1HpLNnk6tlf+EM78=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=G+PCPGSOVxjxei4PciAo8EEuV0SXAcLIg1YgmZay4+BwjziFl/IkqjEI4ukUiqfRB o/J/SfvT0SS0Qmp2dnUvbyycLHrFheGKCfEU5WL6hX3BkPvK1i8WcL+vAMCbCsOKee Dcm71JrH0xvNuOrlLbdD2RI5qpTCtnXtTylj598E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730691AbfLSSzg (ORCPT ); Thu, 19 Dec 2019 13:55:36 -0500 Received: from mail.kernel.org ([198.145.29.99]:51642 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730671AbfLSSzd (ORCPT ); Thu, 19 Dec 2019 13:55:33 -0500 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 E4A2C24682; Thu, 19 Dec 2019 18:55:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576781733; bh=qGRvROEzM3vlKI0jA+ExRsSkpch1HpLNnk6tlf+EM78=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h3ceup8xJLbybHkcTJ+Uw3jNVYBGKSUPXJ9c6Ar7GGlvULWyd/Ffdt4+PgVvq9ctJ XdfL1SBVeimtKfxU2unE9upLAuEppr5PATFeIS35XyEp6f2pB8DpF7mJ6ZhZa0CFlE fO3pPL02X1CT2wM2Buq3JorORTJTJmI9V8LwAonU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, sheebab , Alim Akhtar , Vignesh Raghavendra , "Martin K. Petersen" Subject: [PATCH 5.4 58/80] scsi: ufs: Disable autohibern8 feature in Cadence UFS Date: Thu, 19 Dec 2019 19:34:50 +0100 Message-Id: <20191219183131.230267215@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191219183031.278083125@linuxfoundation.org> References: <20191219183031.278083125@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: sheebab commit d168001d14eccfda229b4a41a2c31a21e3c379da upstream. This patch disables autohibern8 feature in Cadence UFS. The autohibern8 feature has issues due to which unexpected interrupt trigger is happening. After the interrupt issue is sorted out, autohibern8 feature will be re-enabled Link: https://lore.kernel.org/r/1575367635-22662-1-git-send-email-sheebab@cadence.com Cc: Signed-off-by: sheebab Reviewed-by: Alim Akhtar Tested-by: Vignesh Raghavendra Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/ufs/cdns-pltfrm.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/drivers/scsi/ufs/cdns-pltfrm.c +++ b/drivers/scsi/ufs/cdns-pltfrm.c @@ -99,6 +99,12 @@ static int cdns_ufs_link_startup_notify( */ ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0); + /* + * Disabling Autohibern8 feature in cadence UFS + * to mask unexpected interrupt trigger. + */ + hba->ahit = 0; + return 0; }