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List:       linux-pci
Subject:    Re: [PATCH v6 3/3] PCI: imx6: Add support for i.MX6 PCIe controller
From:       Sean Cross <xobs () kosagi ! com>
Date:       2013-09-27 3:54:40
Message-ID: 52450180.2070807 () kosagi ! com
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On 27/9/13 11:40 AM, Jingoo Han wrote:
> On Friday, September 27, 2013 11:19 AM, Shawn Guo wrote:
>> On Fri, Sep 27, 2013 at 01:38:39AM +0000, Zhu Richard-R65037 wrote:
>>> Hi Tim:
>>> Thanks for your tests.
>>> Yes, it is. There are some problems when the PCIe switch is used
>>> on the 3.1x kernel at my side too,
>> although the PCIe switch
>>> is ok on FSL imx_3.0.35 kernels.
>>> I'm debugging this issue now, and would summit the patches asap.
>>>
>>  From what I read, it seems Sean's series does not support PCIe switch.
>> At least, he hasn't got any device to test it.  And there is some
>> problem with PCIe switch running the latest kernel, which might not be
>> related to the controller driver.
>>
>> I suggest we ask Bjorn to merge the v7 I sent yesterday, so that people
>> can have a same base to work on, and add PCIe switch support with
>> incremental patches.   Does that sound good to you, Tim?
>>
> Hi Shawn Guo,
>
> I agree with your suggestion. :-)
> The PCIe switch support patches can be added later, after the v7 patch for
> i.MX6 PCIe controller driver is merged.
>
> Also, if the PCIe switch support patches modify the synopsys designware PCIe
> driver (pcie-designware.c), it should be confirmed by other related people.
>
Correct.  My series doesn't support PCIe switches mostly because I don't 
have one to test with.  It would be interesting to see if PCIe switches 
work with other Designware drivers.

---
Sean
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