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From: "Peter Wang (王信友)" <peter.wang@mediatek.com>
To: "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	"bvanassche@acm.org" <bvanassche@acm.org>,
	"martin.petersen@oracle.com" <martin.petersen@oracle.com>
Cc: "Lin Gui (桂林)" <Lin.Gui@mediatek.com>,
	"Alice Chao (趙珮均)" <Alice.Chao@mediatek.com>,
	"CC Chou (周志杰)" <cc.chou@mediatek.com>,
	"Eddie Huang (黃智傑)" <eddie.huang@mediatek.com>,
	"Ed Tsai (蔡宗軒)" <Ed.Tsai@mediatek.com>,
	wsd_upstream <wsd_upstream@mediatek.com>,
	"Chaotian Jing (井朝天)" <Chaotian.Jing@mediatek.com>,
	"Chun-Hung Wu (巫駿宏)" <Chun-hung.Wu@mediatek.com>,
	"Yi-fan Peng (彭羿凡)" <Yi-fan.Peng@mediatek.com>,
	"Qilin Tan (谭麒麟)" <Qilin.Tan@mediatek.com>,
	"linux-mediatek@lists.infradead.org"
	<linux-mediatek@lists.infradead.org>,
	"Tun-yu Yu (游敦聿)" <Tun-yu.Yu@mediatek.com>,
	"Jiajie Hao (郝加节)" <jiajie.hao@mediatek.com>,
	"Naomi Chu (朱詠田)" <Naomi.Chu@mediatek.com>
Subject: Re: [PATCH v1 01/10] ufs: host: mediatek: Fix runtime suspend error deadlock
Date: Tue, 23 Sep 2025 05:56:48 +0000	[thread overview]
Message-ID: <c6aac69ab53de8026702264750d2b44e716d14b9.camel@mediatek.com> (raw)
In-Reply-To: <59dd8d29-48e8-4f45-b9f8-2f67b3f316b5@acm.org>

On Mon, 2025-09-22 at 11:27 -0700, Bart Van Assche wrote:
> 
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> 
> > 
> > @@ -6625,6 +6625,11 @@ static void ufshcd_err_handler(struct
> > work_struct *work)
> >          }
> >          spin_unlock_irqrestore(hba->host->host_lock, flags);
> > 
> > +       if (hba->pm_op_in_progress) {
> > +               ufshcd_link_recovery(hba);
> > +               return;
> > +       }
> > +
> >          ufshcd_err_handling_prepare(hba);
> 
> Yes, the above change is what I prefer. Please note that I haven't
> tested this change myself.
> > > > 
> > 
> > This is a limitation of MediaTek’s SoC.
> > If auto-hibernate is triggered concurrently with manual
> > hibernate, it may cause errors. Therefore, we disable
> > auto-hibernate before issuing a manual hibernate command.
> 
> How about adding a comment that explains this?
> 
> Thanks,
> 
> Bart.

Hi Bart,

Okay, I will submit another patch and include this comment.

Thanks
Peter



  reply	other threads:[~2025-09-23  5:57 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-18 10:36 [PATCH v1 00/10] Enhance UFS Mediatek Driver peter.wang
2025-09-18 10:36 ` [PATCH v1 01/10] ufs: host: mediatek: Fix runtime suspend error deadlock peter.wang
2025-09-18 18:27   ` Bart Van Assche
2025-09-19  8:11     ` Peter Wang (王信友)
2025-09-19 20:57       ` Bart Van Assche
2025-09-22  8:37         ` Peter Wang (王信友)
2025-09-22 18:27           ` Bart Van Assche
2025-09-23  5:56             ` Peter Wang (王信友) [this message]
2025-09-18 10:36 ` [PATCH v1 02/10] ufs: host: mediatek: Correct clock scaling with PM QoS flow peter.wang
2025-09-18 18:30   ` Bart Van Assche
2025-09-19  8:11     ` Peter Wang (王信友)
2025-09-19 21:02       ` Bart Van Assche
2025-09-22  8:39         ` Peter Wang (王信友)
2025-09-22 19:21           ` Bart Van Assche
2025-09-23  5:58             ` Peter Wang (王信友)
2025-09-18 10:36 ` [PATCH v1 03/10] ufs: host: mediatek: Adjust clock scaling for PM flow peter.wang
2025-09-18 10:36 ` [PATCH v1 04/10] ufs: host: mediatek: Handle clock scaling for high gear in " peter.wang
2025-09-18 10:36 ` [PATCH v1 05/10] ufs: host: mediatek: Adjust sync length for FASTAUTO mode peter.wang
2025-09-18 19:28   ` Bart Van Assche
2025-09-19  8:12     ` Peter Wang (王信友)
2025-09-18 10:36 ` [PATCH v1 06/10] ufs: host: mediatek: Enable interrupts for MCQ mode peter.wang
2025-09-18 18:34   ` Bart Van Assche
2025-09-19  8:14     ` Peter Wang (王信友)
2025-09-19 21:09       ` Bart Van Assche
2025-09-22  8:41         ` Peter Wang (王信友)
2025-09-22 19:26           ` Bart Van Assche
2025-09-23  5:59             ` Peter Wang (王信友)
2025-09-18 10:36 ` [PATCH v1 07/10] ufs: host: mediatek: Fix shutdown/suspend race condition peter.wang
2025-09-18 18:39   ` Bart Van Assche
2025-09-19  8:15     ` Peter Wang (王信友)
2025-09-19 21:10       ` Bart Van Assche
2025-09-18 10:36 ` [PATCH v1 08/10] ufs: host: mediatek: Remove duplicate function peter.wang
2025-09-18 19:29   ` Bart Van Assche
2025-09-18 10:36 ` [PATCH v1 09/10] ufs: host: mediatek: Add support for new platform with MMIO_OTSD_CTR peter.wang
2025-09-18 10:36 ` [PATCH v1 10/10] ufs: host: mediatek: Support new feature for MT6991 peter.wang
2025-09-18 19:32   ` Bart Van Assche
2025-09-19  8:17     ` Peter Wang (王信友)

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