From patchwork Mon Sep 20 21:07:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Bao D. Nguyen" X-Patchwork-Id: 12506333 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=-11.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, 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 6DF66C433EF for ; Mon, 20 Sep 2021 21:10:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3F79161019 for ; Mon, 20 Sep 2021 21:10:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231755AbhITVLa (ORCPT ); Mon, 20 Sep 2021 17:11:30 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:57466 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231410AbhITVJa (ORCPT ); Mon, 20 Sep 2021 17:09:30 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1632172082; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=G3IVzzBfVgZWkFH3uGqzVuYGW1kOFbgXfF9zYJWD7A0=; b=wWVS5vD7XRx+/PaNRF+uWnfjMPvHoisoUDb6mXiYxvEGdHn1uuc5B6YLypRTE77+nnJiB3sM A3vhTscWqXeMutVeiUlEGFHH84LpePNH+oiVnvuoml1xy2GL4kX+pTiRg930vU4ywqRgeCZM FO9KybyjCxb+6UqUievCWpXB0cs= X-Mailgun-Sending-Ip: 198.61.254.9 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n07.prod.us-east-1.postgun.com with SMTP id 6148f832507800c880eb2710 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Mon, 20 Sep 2021 21:08:02 GMT Sender: nguyenb=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 4AEE1C43460; Mon, 20 Sep 2021 21:08:00 +0000 (UTC) Received: from stor-berry.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: nguyenb) by smtp.codeaurora.org (Postfix) with ESMTPSA id 662F7C4338F; Mon, 20 Sep 2021 21:07:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org 662F7C4338F Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=codeaurora.org From: "Bao D. Nguyen" To: cang@codeaurora.org, asutoshd@codeaurora.org, martin.petersen@oracle.com, linux-scsi@vger.kernel.org Cc: "Bao D. Nguyen" , linux-arm-msm@vger.kernel.org Subject: [PATCH v1 0/2] Put Qualcomm's ufs controller to hibern8 during clock scaling Date: Mon, 20 Sep 2021 14:07:48 -0700 Message-Id: X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Asutosh Das tried to upstream this change about a year ago. We would like to resume his work because Qualcomm's ufs controller needs to be in hibern8 before scaling up/down the clocks. Just like ufshcd_uic_hibern8_exit() is already being exported, we would like to export ufshcd_uic_hibern8_enter() so that Qualcomm's ufs controller can be put in hibern8 state. Asutosh Das (2): scsi: ufs: export hibern8 entry and exit scsi: ufs-qcom: enter and exit hibern8 during clock scaling drivers/scsi/ufs/ufs-qcom.c | 12 +++++++++++- drivers/scsi/ufs/ufshcd.c | 4 ++-- drivers/scsi/ufs/ufshcd.h | 2 ++ 3 files changed, 15 insertions(+), 3 deletions(-)