linux-kernel - Re: [PATCH v10 1/7] scsi: ufs: Flush exception event before suspend

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Date:   Fri, 14 Feb 2020 10:48:35 +0800
From:   hongwus@...eaurora.org
To:     Can Guo <cang@...eaurora.org>
Cc:     asutoshd@...eaurora.org, nguyenb@...eaurora.org,
        rnayak@...eaurora.org, linux-scsi@...r.kernel.org,
        kernel-team@...roid.com, saravanak@...gle.com, salyzyn@...gle.com,
        Sayali Lokhande <sayalil@...eaurora.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Stanley Chu <stanley.chu@...iatek.com>,
        Bean Huo <beanhuo@...ron.com>,
        Bart Van Assche <bvanassche@....org>,
        Venkat Gopalakrishnan <venkatg@...eaurora.org>,
        Tomas Winkler <tomas.winkler@...el.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v10 1/7] scsi: ufs: Flush exception event before suspend

On 2020-02-11 11:40, Can Guo wrote:
> From: Sayali Lokhande <sayalil@...eaurora.org>
> 
> Exception event can be raised by the device when system
> suspend is in progress. This will result in unclocked
> register access in exception event handler as clocks will
> be turned off during suspend. This change makes sure to flush
> exception event handler work in suspend before disabling
> clocks to avoid unclocked register access issue.
> 
> Signed-off-by: Sayali Lokhande <sayalil@...eaurora.org>
> Signed-off-by: Asutosh Das <asutoshd@...eaurora.org>
> Signed-off-by: Can Guo <cang@...eaurora.org>
> Reviewed-by: Bean Huo <beanhuo@...ron.com>


Reviewed-by: Hongwu Su <hongwus@...ron.com>