From patchwork Fri Jul 6 12:30:30 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Asutosh Das (asd)" X-Patchwork-Id: 10511583 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 721F360325 for ; Fri, 6 Jul 2018 12:40:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 643ED285FC for ; Fri, 6 Jul 2018 12:40:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 58C8B28600; Fri, 6 Jul 2018 12:40:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 09821285FC for ; Fri, 6 Jul 2018 12:40:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933026AbeGFMk2 (ORCPT ); Fri, 6 Jul 2018 08:40:28 -0400 Received: from alexa-out-blr-02.qualcomm.com ([103.229.18.198]:32534 "EHLO alexa-out-blr.qualcomm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933116AbeGFMin (ORCPT ); Fri, 6 Jul 2018 08:38:43 -0400 X-IronPort-AV: E=Sophos;i="5.51,316,1526322600"; d="scan'208";a="98690" Received: from ironmsg03-blr.qualcomm.com ([10.86.208.132]) by alexa-out-blr.qualcomm.com with ESMTP/TLS/AES256-SHA; 06 Jul 2018 18:00:51 +0530 X-IronPort-AV: E=McAfee;i="5900,7806,8945"; a="470256" Received: from asutoshd-linux.qualcomm.com ([10.206.24.163]) by ironmsg03-blr.qualcomm.com with ESMTP; 06 Jul 2018 18:00:51 +0530 Received: by asutoshd-linux.qualcomm.com (Postfix, from userid 92687) id 82DA82FAD; Fri, 6 Jul 2018 18:00:50 +0530 (IST) From: Asutosh Das To: subhashj@codeaurora.org, cang@codeaurora.org, vivek.gautam@codeaurora.org, rnayak@codeaurora.org, vinholikatti@gmail.com, jejb@linux.vnet.ibm.com, martin.petersen@oracle.com, linux-scsi@vger.kernel.org Cc: Sujit Reddy Thumma , linux-arm-msm@vger.kernel.org, Gilad Broner , Asutosh Das , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v1 3/9] scsi: ufs: Override auto suspend tunables for ufs Date: Fri, 6 Jul 2018 18:00:30 +0530 Message-Id: <6981189193244970a912c8b3f390a00bc37ed14a.1530880006.git.asutoshd@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sujit Reddy Thumma Override auto suspend tunables for UFS device LUNs during initialization so as to efficiently manage background operations and the power consumption. Signed-off-by: Sujit Reddy Thumma Signed-off-by: Gilad Broner Signed-off-by: Asutosh Das Acked-by: Adrian Hunter Reviewed-by: Subhash Jadavani --- drivers/scsi/ufs/ufshcd.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 77e2b3e..b03f3ea 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -89,6 +89,9 @@ /* Interrupt aggregation default timeout, unit: 40us */ #define INT_AGGR_DEF_TO 0x02 +/* default value of auto suspend is 3 seconds */ +#define UFSHCD_AUTO_SUSPEND_DELAY_MS 3000 /* millisecs */ + #define ufshcd_toggle_vreg(_dev, _vreg, _on) \ ({ \ int _ret; \ @@ -4528,6 +4531,9 @@ static int ufshcd_slave_configure(struct scsi_device *sdev) blk_queue_update_dma_pad(q, PRDT_DATA_BYTE_COUNT_PAD - 1); blk_queue_max_segment_size(q, PRDT_DATA_BYTE_COUNT_MAX); + sdev->autosuspend_delay = UFSHCD_AUTO_SUSPEND_DELAY_MS; + sdev->use_rpm_auto = 1; + return 0; }