From patchwork Tue Oct 5 12:45:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UGV0ZXIgV2FuZyAo546L5L+h5Y+LKQ==?= X-Patchwork-Id: 12536645 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 3D9EFC433EF for ; Tue, 5 Oct 2021 12:55:31 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0A02F61373 for ; Tue, 5 Oct 2021 12:55:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 0A02F61373 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=/CJ/AjZGK/MN4uNq7JNBqkYX/iV0qmqQtJCVnmH2sFs=; b=RrNDyNlfcNUyJ8 n/aalrFWRrm0f/7gy3Ju9nZqjw1Raj5X5jqVN4qiJHXJzVugfOGNCbbrQ6Lola8s6RrW0ewop/y0H JxtAs6F50ndM4pO3vbs90+wIO2bDw3yIYMMIlzFFV5XJq+RrHj9IxxpFqVhCKJGXF2X5OpoCnyT2p KY8ii4T9RKAhpTRULxkKn+1+4/Zf7Q1Kha/CHP5wuJN/qZciQbXnhlCRSk+Hynq9Xo2HgXZ2DEE48 NmTA/0APEBI2wZXOJ8tPtzxyWfeho9xa6eDc2/NK53E3TP3B5RK2t9P4FZG7ro1sTD1KKJh9OOaNe iWA486pyoM0r4GpMZv+A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mXjyX-00AVcL-9r; Tue, 05 Oct 2021 12:55:17 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mXjyU-00AVbJ-BI for linux-mediatek@lists.infradead.org; Tue, 05 Oct 2021 12:55:15 +0000 X-UUID: 61adc51279a34b2183efb2454ac5af6c-20211005 X-UUID: 61adc51279a34b2183efb2454ac5af6c-20211005 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1949246868; Tue, 05 Oct 2021 05:55:09 -0700 Received: from mtkmbs10n1.mediatek.inc (172.21.101.34) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 5 Oct 2021 05:45:07 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Tue, 5 Oct 2021 20:45:05 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 5 Oct 2021 20:45:05 +0800 From: To: , , , , , CC: , , , , , , , , , , , , Subject: [PATCH v1 1/2] scsi: ufs: support vops pre suspend Date: Tue, 5 Oct 2021 20:45:02 +0800 Message-ID: <20211005124503.14449-1-peter.wang@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211005_055514_421055_09C51E57 X-CRM114-Status: GOOD ( 11.46 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Peter Wang This patch introduce an solution to do pre suspned before SSU (sleep) command. Signed-off-by: Peter Wang --- drivers/scsi/ufs/ufshcd.c | 9 +++++++-- drivers/scsi/ufs/ufshcd.h | 8 +++++--- 2 files changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 188de6f91050..73eb626fa88f 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -8897,6 +8897,10 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op) flush_work(&hba->eeh_work); + ret = ufshcd_vops_suspend(hba, pm_op, PRE_CHANGE); + if (ret) + goto enable_scaling; + if (req_dev_pwr_mode != hba->curr_dev_pwr_mode) { if (pm_op != UFS_RUNTIME_PM) /* ensure that bkops is disabled */ @@ -8924,7 +8928,7 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op) * vendor specific host controller register space call them before the * host clocks are ON. */ - ret = ufshcd_vops_suspend(hba, pm_op); + ret = ufshcd_vops_suspend(hba, pm_op, POST_CHANGE); if (ret) goto set_link_active; goto out; @@ -9052,7 +9056,8 @@ static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) set_old_link_state: ufshcd_link_state_transition(hba, old_link_state, 0); vendor_suspend: - ufshcd_vops_suspend(hba, pm_op); + ufshcd_vops_suspend(hba, pm_op, PRE_CHANGE); + ufshcd_vops_suspend(hba, pm_op, POST_CHANGE); out: if (ret) ufshcd_update_evt_hist(hba, UFS_EVT_WL_RES_ERR, (u32)ret); diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index f0da5d3db1fa..e90320253d96 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -344,7 +344,8 @@ struct ufs_hba_variant_ops { enum ufs_notify_change_status); int (*apply_dev_quirks)(struct ufs_hba *hba); void (*fixup_dev_quirks)(struct ufs_hba *hba); - int (*suspend)(struct ufs_hba *, enum ufs_pm_op); + int (*suspend)(struct ufs_hba *, enum ufs_pm_op, + enum ufs_notify_change_status); int (*resume)(struct ufs_hba *, enum ufs_pm_op); void (*dbg_register_dump)(struct ufs_hba *hba); int (*phy_initialization)(struct ufs_hba *); @@ -1300,10 +1301,11 @@ static inline void ufshcd_vops_fixup_dev_quirks(struct ufs_hba *hba) hba->vops->fixup_dev_quirks(hba); } -static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op) +static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op, + enum ufs_notify_change_status status) { if (hba->vops && hba->vops->suspend) - return hba->vops->suspend(hba, op); + return hba->vops->suspend(hba, op, status); return 0; }