linux-kernel - Re: [PATCH V3 0/4] [SCSI] ufs: Adds glue drivers to ufshcd

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Message-ID: <CAKVbJB_EL=h5y0BJC4nt60DcVZ2i7tSP9vS2gw+WQEGHCC1z5w@mail.gmail.com>
Date:	Thu, 26 Jul 2012 17:14:39 +0530
From:	vinayak holikatti <vinholikatti@...il.com>
To:	"S, Venkatraman" <svenkatr@...com>
Cc:	James.Bottomley@...senpartnership.com, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org, patches@...aro.org,
	linux-samsung-soc@...r.kernel.org, arnd@...aro.org,
	girish.shivananjappa@...aro.org, saugata.das@...aro.org,
	vishak.g@...sung.com, venkat@...aro.org, k.rajesh@...sung.com,
	dsaxena@...aro.org, ilho215.lee@...sung.com, nala.la@...sung.com,
	sreekumar.c@...sung.com
Subject: Re: [PATCH V3 0/4] [SCSI] ufs: Adds glue drivers to ufshcd

On Thu, Jul 26, 2012 at 5:05 PM, S, Venkatraman <svenkatr@...com> wrote:
> On Thu, Jul 26, 2012 at 4:42 PM, vinayak holikatti
> <vinholikatti@...il.com> wrote:
>> On Thu, Jul 26, 2012 at 4:02 PM, S, Venkatraman <svenkatr@...com> wrote:
>>> On Thu, Jul 26, 2012 at 2:12 PM, Vinayak Holikatti
>>> <vinholikatti@...il.com> wrote:
>>>> This patch set adds following features
>>>>  - Seggregate PCI specific code in ufshcd.c
>>>>  - Adds PCI glue driver ufshcd-pci.c and ufshcd.c become core module
>>>>  - Adds Platform glue driver ufshcd-pltfrm.c
>>>>  - Update correct transfer size in Command UPIU
>>>>
>>>> Vinayak Holikatti (4):
>>>>   [SCSI] drivers/scsi/ufs: Seggregate PCI Specific Code
>>>>   [SCSI] drivers/scsi/ufs: Separate PCI code into glue driver
>>>>   [SCSI] ufs: Add Platform glue driver for ufshcd
>>>>   [SCSI] ufs: Correct the expected data transfer size
>>>>
>>>>  drivers/scsi/ufs/Kconfig         |   37 +++-
>>>>  drivers/scsi/ufs/Makefile        |    2 +
>>>>  drivers/scsi/ufs/ufshcd-pci.c    |  228 ++++++++++++++++++++
>>>>  drivers/scsi/ufs/ufshcd-pltfrm.c |  222 ++++++++++++++++++++
>>>>  drivers/scsi/ufs/ufshcd.c        |  422 ++++++--------------------------------
>>>>  drivers/scsi/ufs/ufshcd.h        |  206 +++++++++++++++++++
>>>>  drivers/scsi/ufs/ufshcd_common.h |   53 +++++
>>>>  7 files changed, 813 insertions(+), 357 deletions(-)
>>>
>>> Two minor observations..
>>> 1) If both pci and platform have to do the exact same thing in their
>>> _suspend() and _resume() routines, perhaps there is scope for making
>>> them as common (the steps outlined in them should be done in core
>>> ufshcd) ?
>> Both will not have to do the exact same thing. We have plan to implement
>> ufshcd_suspend and ufshcd_resume which will be generic and will be part
>> of ufshcd core, as you said.
>
> Thanks. The comments in the driver files don't reflect this; it'd be
> wise to create
> the placeholder for core_suspend()/resume() in ufshcd.c, instead of
> the platform drivers.
Ok, I will make a place holder in ufshcd.c in next version of patch.
>
>>>
>>> 2) Need to include ufshcd_common.h in ufshcd.c so that the prototypes
>>> are supplied for the exported functions.
>> Thank you, I will make necessary changes in next version of patches.
>>
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