From patchwork Tue Sep 28 09:06:12 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: 12522213 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86AE2C433EF for ; Tue, 28 Sep 2021 09:07:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6D5E260F44 for ; Tue, 28 Sep 2021 09:07:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239780AbhI1JJS (ORCPT ); Tue, 28 Sep 2021 05:09:18 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:18204 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239793AbhI1JJN (ORCPT ); Tue, 28 Sep 2021 05:09:13 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1632820054; h=References: In-Reply-To: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=8WntT5xGB4DvG/Btl80iJinvKCdTDOZQIHSQcSFgEIc=; b=ipWWLray3bzdsJj3bTMYHjlsqYz1UZmscL1iUeWRF03nVc4eguypuZogue+0/99HCCJeyh/C vrvbAimOHlWUXyNpB6ck56iD96G4hXAQ9yhmzAAFIeSrceOmGxIQ/ii7L/Jic/LD6gk39xZp eWwQxvG2bWyvRzOwv8WOfZMbxvA= 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-n04.prod.us-east-1.postgun.com with SMTP id 6152db16713d5d6f968f0957 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 28 Sep 2021 09:06:30 GMT Sender: nguyenb=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id AE4CBC4361A; Tue, 28 Sep 2021 09:06:29 +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 2ABE6C4338F; Tue, 28 Sep 2021 09:06:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org 2ABE6C4338F 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: linux-arm-msm@vger.kernel.org, "Bao D . Nguyen" , Alim Akhtar , Avri Altman , "James E.J. Bottomley" , Bean Huo , Stanley Chu , Bart Van Assche , Jaegeuk Kim , Adrian Hunter , Keoseong Park , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2 1/2] scsi: ufs: export hibern8 entry and exit Date: Tue, 28 Sep 2021 02:06:12 -0700 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Asutosh Das Qualcomm controllers need to be in hibern8 before scaling up or down the clocks. Hence, export the hibern8 entry and exit functions. Signed-off-by: Asutosh Das Signed-off-by: Bao D. Nguyen Reviewed-by: Bart Van Assche Reviewed-by: Alim Akhtar --- drivers/scsi/ufs/ufshcd.c | 4 ++-- drivers/scsi/ufs/ufshcd.h | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 3841ab49..f3aad32 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -227,7 +227,6 @@ static void ufshcd_hba_exit(struct ufs_hba *hba); static int ufshcd_clear_ua_wluns(struct ufs_hba *hba); static int ufshcd_probe_hba(struct ufs_hba *hba, bool async); static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on); -static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba); static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba); static int ufshcd_host_reset_and_restore(struct ufs_hba *hba); static void ufshcd_resume_clkscaling(struct ufs_hba *hba); @@ -4116,7 +4115,7 @@ int ufshcd_link_recovery(struct ufs_hba *hba) } EXPORT_SYMBOL_GPL(ufshcd_link_recovery); -static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba) +int ufshcd_uic_hibern8_enter(struct ufs_hba *hba) { int ret; struct uic_command uic_cmd = {0}; @@ -4138,6 +4137,7 @@ static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba) return ret; } +EXPORT_SYMBOL_GPL(ufshcd_uic_hibern8_enter); int ufshcd_uic_hibern8_exit(struct ufs_hba *hba) { diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 52ea6f3..124f50b 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -1001,6 +1001,7 @@ int ufshcd_init(struct ufs_hba *, void __iomem *, unsigned int); int ufshcd_link_recovery(struct ufs_hba *hba); int ufshcd_make_hba_operational(struct ufs_hba *hba); void ufshcd_remove(struct ufs_hba *); +int ufshcd_uic_hibern8_enter(struct ufs_hba *hba); int ufshcd_uic_hibern8_exit(struct ufs_hba *hba); void ufshcd_delay_us(unsigned long us, unsigned long tolerance); int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask,