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Fri, 18 Dec 2020 06:08:37 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id B7B51C433ED; Fri, 18 Dec 2020 06:08:37 +0000 (UTC) Received: from mail.codeaurora.org (localhost.localdomain [127.0.0.1]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: cang) by smtp.codeaurora.org (Postfix) with ESMTPSA id B3600C433CA; Fri, 18 Dec 2020 06:08:35 +0000 (UTC) MIME-Version: 1.0 Date: Fri, 18 Dec 2020 14:08:35 +0800 From: Can Guo To: Stanley Chu Subject: Re: [PATCH v2 1/4] scsi: ufs: Refactor cancelling clkscaling works In-Reply-To: <20201216131639.4128-2-stanley.chu@mediatek.com> References: <20201216131639.4128-1-stanley.chu@mediatek.com> <20201216131639.4128-2-stanley.chu@mediatek.com> Message-ID: <0a96e3c62a0a77c78285fe92f2db2cd3@codeaurora.org> X-Sender: cang@codeaurora.org User-Agent: Roundcube Webmail/1.3.9 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201218_010841_023729_7A1CA031 X-CRM114-Status: GOOD ( 14.90 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jiajie.hao@mediatek.com, linux-scsi@vger.kernel.org, martin.petersen@oracle.com, andy.teng@mediatek.com, jejb@linux.ibm.com, chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com, linux-kernel@vger.kernel.org, cc.chou@mediatek.com, avri.altman@wdc.com, alice.chao@mediatek.com, linux-mediatek@lists.infradead.org, peter.wang@mediatek.com, alim.akhtar@samsung.com, matthias.bgg@gmail.com, asutoshd@codeaurora.org, chaotian.jing@mediatek.com, bvanassche@acm.org, linux-arm-kernel@lists.infradead.org, beanhuo@micron.com Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 2020-12-16 21:16, Stanley Chu wrote: > Cancelling suspend_work and resume_work is only required while > suspending clk-scaling. Thus moving these two invokes into > ufshcd_suspend_clkscaling() function. > > Signed-off-by: Stanley Chu > --- > drivers/scsi/ufs/ufshcd.c | 17 ++++++----------- > 1 file changed, 6 insertions(+), 11 deletions(-) > > diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c > index 052479a56a6f..a91b73a1fc48 100644 > --- a/drivers/scsi/ufs/ufshcd.c > +++ b/drivers/scsi/ufs/ufshcd.c > @@ -1451,6 +1451,9 @@ static void ufshcd_suspend_clkscaling(struct > ufs_hba *hba) > if (!ufshcd_is_clkscaling_supported(hba)) > return; > > + cancel_work_sync(&hba->clk_scaling.suspend_work); > + cancel_work_sync(&hba->clk_scaling.resume_work); > + > spin_lock_irqsave(hba->host->host_lock, flags); > if (!hba->clk_scaling.is_suspended) { > suspend = true; > @@ -1514,9 +1517,6 @@ static ssize_t > ufshcd_clkscale_enable_store(struct device *dev, > pm_runtime_get_sync(hba->dev); > ufshcd_hold(hba, false); > > - cancel_work_sync(&hba->clk_scaling.suspend_work); > - cancel_work_sync(&hba->clk_scaling.resume_work); > - > if (value) { > ufshcd_resume_clkscaling(hba); > } else { > @@ -5663,11 +5663,8 @@ static void ufshcd_err_handling_prepare(struct > ufs_hba *hba) > ufshcd_vops_resume(hba, UFS_RUNTIME_PM); > } else { > ufshcd_hold(hba, false); > - if (hba->clk_scaling.is_enabled) { > - cancel_work_sync(&hba->clk_scaling.suspend_work); > - cancel_work_sync(&hba->clk_scaling.resume_work); > + if (hba->clk_scaling.is_enabled) > ufshcd_suspend_clkscaling(hba); > - } > } > down_write(&hba->clk_scaling_lock); > hba->clk_scaling.is_allowed = false; > @@ -8512,11 +8509,9 @@ static int ufshcd_suspend(struct ufs_hba *hba, > enum ufs_pm_op pm_op) > ufshcd_hold(hba, false); > hba->clk_gating.is_suspended = true; > > - if (hba->clk_scaling.is_enabled) { > - cancel_work_sync(&hba->clk_scaling.suspend_work); > - cancel_work_sync(&hba->clk_scaling.resume_work); > + if (hba->clk_scaling.is_enabled) > ufshcd_suspend_clkscaling(hba); > - } > + > down_write(&hba->clk_scaling_lock); > hba->clk_scaling.is_allowed = false; > up_write(&hba->clk_scaling_lock); Reviewed-by: Can Guo _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek 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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 DE92CC4361B for ; Fri, 18 Dec 2020 06:09:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8F67A23136 for ; Fri, 18 Dec 2020 06:09:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727257AbgLRGJe (ORCPT ); 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Fri, 18 Dec 2020 06:08:38 GMT Sender: cang=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 3C1FFC43466; Fri, 18 Dec 2020 06:08:37 +0000 (UTC) Received: from mail.codeaurora.org (localhost.localdomain [127.0.0.1]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: cang) by smtp.codeaurora.org (Postfix) with ESMTPSA id B3600C433CA; Fri, 18 Dec 2020 06:08:35 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Fri, 18 Dec 2020 14:08:35 +0800 From: Can Guo To: Stanley Chu Cc: linux-scsi@vger.kernel.org, martin.petersen@oracle.com, avri.altman@wdc.com, alim.akhtar@samsung.com, jejb@linux.ibm.com, beanhuo@micron.com, asutoshd@codeaurora.org, matthias.bgg@gmail.com, bvanassche@acm.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kuohong.wang@mediatek.com, peter.wang@mediatek.com, chun-hung.wu@mediatek.com, andy.teng@mediatek.com, chaotian.jing@mediatek.com, cc.chou@mediatek.com, jiajie.hao@mediatek.com, alice.chao@mediatek.com Subject: Re: [PATCH v2 1/4] scsi: ufs: Refactor cancelling clkscaling works In-Reply-To: <20201216131639.4128-2-stanley.chu@mediatek.com> References: <20201216131639.4128-1-stanley.chu@mediatek.com> <20201216131639.4128-2-stanley.chu@mediatek.com> Message-ID: <0a96e3c62a0a77c78285fe92f2db2cd3@codeaurora.org> X-Sender: cang@codeaurora.org User-Agent: Roundcube Webmail/1.3.9 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org On 2020-12-16 21:16, Stanley Chu wrote: > Cancelling suspend_work and resume_work is only required while > suspending clk-scaling. Thus moving these two invokes into > ufshcd_suspend_clkscaling() function. > > Signed-off-by: Stanley Chu > --- > drivers/scsi/ufs/ufshcd.c | 17 ++++++----------- > 1 file changed, 6 insertions(+), 11 deletions(-) > > diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c > index 052479a56a6f..a91b73a1fc48 100644 > --- a/drivers/scsi/ufs/ufshcd.c > +++ b/drivers/scsi/ufs/ufshcd.c > @@ -1451,6 +1451,9 @@ static void ufshcd_suspend_clkscaling(struct > ufs_hba *hba) > if (!ufshcd_is_clkscaling_supported(hba)) > return; > > + cancel_work_sync(&hba->clk_scaling.suspend_work); > + cancel_work_sync(&hba->clk_scaling.resume_work); > + > spin_lock_irqsave(hba->host->host_lock, flags); > if (!hba->clk_scaling.is_suspended) { > suspend = true; > @@ -1514,9 +1517,6 @@ static ssize_t > ufshcd_clkscale_enable_store(struct device *dev, > pm_runtime_get_sync(hba->dev); > ufshcd_hold(hba, false); > > - cancel_work_sync(&hba->clk_scaling.suspend_work); > - cancel_work_sync(&hba->clk_scaling.resume_work); > - > if (value) { > ufshcd_resume_clkscaling(hba); > } else { > @@ -5663,11 +5663,8 @@ static void ufshcd_err_handling_prepare(struct > ufs_hba *hba) > ufshcd_vops_resume(hba, UFS_RUNTIME_PM); > } else { > ufshcd_hold(hba, false); > - if (hba->clk_scaling.is_enabled) { > - cancel_work_sync(&hba->clk_scaling.suspend_work); > - cancel_work_sync(&hba->clk_scaling.resume_work); > + if (hba->clk_scaling.is_enabled) > ufshcd_suspend_clkscaling(hba); > - } > } > down_write(&hba->clk_scaling_lock); > hba->clk_scaling.is_allowed = false; > @@ -8512,11 +8509,9 @@ static int ufshcd_suspend(struct ufs_hba *hba, > enum ufs_pm_op pm_op) > ufshcd_hold(hba, false); > hba->clk_gating.is_suspended = true; > > - if (hba->clk_scaling.is_enabled) { > - cancel_work_sync(&hba->clk_scaling.suspend_work); > - cancel_work_sync(&hba->clk_scaling.resume_work); > + if (hba->clk_scaling.is_enabled) > ufshcd_suspend_clkscaling(hba); > - } > + > down_write(&hba->clk_scaling_lock); > hba->clk_scaling.is_allowed = false; > up_write(&hba->clk_scaling_lock); Reviewed-by: Can Guo