Re: [PATCH v5 02/15] scsi: ufs: avoid spurious UFS host controller interrupts

From	Hannes Reinecke <hare@suse.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH v5 02/15] scsi: ufs: avoid spurious UFS host controller interrupts
Date	2016-03-01 06:20 +0100
Message-ID	<r7KT0-4Ga-9@gated-at.bofh.it> (permalink)
References	<r79JL-30M-3@gated-at.bofh.it> <r79JO-30M-53@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On 02/28/2016 09:32 PM, Yaniv Gardi wrote:
> When control reaches to Linux UFS driver during UFS boot mode, UFS host
> controller interrupt status/enable registers may have left over
> settings.
> In order to avoid any spurious interrupts due to these left overs,
> it's important to clear these interrupt status/enable registers before
> enabling UFS interrupt handling.
> 
> Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
> Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
> 
> ---
>  drivers/scsi/ufs/ufshcd.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare@suse.de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[PATCH v5 00/15] add fixes, device quirks, error recovery, Yaniv Gardi <ygardi@codeaurora.org> - 2016-02-28 14:40 +0100
  [PATCH v5 03/15] scsi: ufs: implement scsi host timeout handler Yaniv Gardi <ygardi@codeaurora.org> - 2016-02-28 14:40 +0100
    Re: [PATCH v5 03/15] scsi: ufs: implement scsi host timeout handler Hannes Reinecke <hare@suse.de> - 2016-03-01 08:40 +0100
      Re: [PATCH v5 03/15] scsi: ufs: implement scsi host timeout handler ygardi@codeaurora.org - 2016-03-01 14:30 +0100
        Re: [PATCH v5 03/15] scsi: ufs: implement scsi host timeout handler Hannes Reinecke <hare@suse.de> - 2016-03-03 08:30 +0100
          Re: [PATCH v5 03/15] scsi: ufs: implement scsi host timeout handler ygardi@codeaurora.org - 2016-03-03 10:20 +0100
            Re: [PATCH v5 03/15] scsi: ufs: implement scsi host timeout handler Hannes Reinecke <hare@suse.de> - 2016-03-03 14:00 +0100
  [PATCH v5 08/15] scsi: ufs: make error handling bit faster Yaniv Gardi <ygardi@codeaurora.org> - 2016-02-28 14:40 +0100
    Re: [PATCH v5 08/15] scsi: ufs: make error handling bit faster Hannes Reinecke <hare@suse.de> - 2016-03-01 09:00 +0100
      Re: [PATCH v5 08/15] scsi: ufs: make error handling bit faster ygardi@codeaurora.org - 2016-03-01 11:00 +0100
        Re: [PATCH v5 08/15] scsi: ufs: make error handling bit faster Hannes Reinecke <hare@suse.de> - 2016-03-01 11:10 +0100
  [PATCH v5 11/15] scsi: ufs: handle non spec compliant bkops behaviour by device Yaniv Gardi <ygardi@codeaurora.org> - 2016-02-28 14:40 +0100
  [PATCH v5 02/15] scsi: ufs: avoid spurious UFS host controller interrupts Yaniv Gardi <ygardi@codeaurora.org> - 2016-02-28 14:40 +0100
    Re: [PATCH v5 02/15] scsi: ufs: avoid spurious UFS host controller  interrupts Hannes Reinecke <hare@suse.de> - 2016-03-01 06:20 +0100

csiph-web