Re: [PATCH] add driver for DesignWare UFS Host Controller

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Hi,

On 1/8/2016 2:20 PM, Akinobu Mita wrote:
> 2016-01-07 18:44 GMT+09:00 Christoph Hellwig <hch@xxxxxxxxxxxxx>:
>>> This driver patch includes a core driver and glue drivers for pci and platform
>>> for the DesignWare UFS Host IP.
>>
>> Why doesn't this use the existing ufs core?  The architecture looks
>> completely backwards to me.
> 
> I agree.  The existing ufs driver can have variant specific operations
> (hba->vops) and also can define quirks.  So if DesignWare UFS host
> controller requires vendor specific register settings or DME operations
> in initialization, or needs special workarounds for the specific versions,
> it can use those mechanisms and shares common parts between other host
> controllers.
> 

I agree with you. We're already engaging internally a patch rework and so there
will be a new patch soon based on your comments.

Thank you for your comments.

Joao
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