linux-kernel - Re: [PATCH v5] pcie: Add Xilinx PCIe Host Bridge IP driver

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Message-ID: <CA+mB=1LeZn1k2VHNby2TRBcb1xuFFTQio=C845_xe2A=ZciYqg@mail.gmail.com>
Date:	Wed, 30 Jul 2014 16:54:49 +0530
From:	Srikanth Thokala <sthokal@...inx.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Srikanth Thokala <sthokal@...inx.com>,
	Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	svemula@...inx.com,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Michal Simek <michal.simek@...inx.com>,
	Grant Likely <grant.likely@...aro.org>, anirudh@...inx.com,
	Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [PATCH v5] pcie: Add Xilinx PCIe Host Bridge IP driver

Hi Arnd,

On Mon, Jul 28, 2014 at 6:32 PM, Arnd Bergmann <arnd@...db.de> wrote:
> On Monday 28 July 2014 18:04:34 Srikanth Thokala wrote:
>> Hi Arnd and Rob,
>>
>> I discussed with Bjorn and we believe this patch is in good shape to
>> apply.  And Bjorn requires ACKs to apply this patch.  So, could you
>> guys please review this patch and provided your ACKs to this patch.
>
> Looks great for the most part. I've looked through the whole driver
> again, and I have two small issues remaining:
>
> a) Please clarify in the changeset description why there is no support
>    for PCI I/O space.

Sure, I will add to my changeset.

>
> b) I think you should use the 'msi-parent' property, and the
>    of_pci_find_msi_chip_by_node() to find the msi_chip for the
>    PCI controller. This will make it possible to forward MSIs
>    to the main interrupt controller in the system, which is more
>    efficient. See the pcie-mvebu driver for an example of this.

Ok, I need to look into this and I will plan to implement on top of this patch.

>
> Other than these:
>
> Acked-by: Arnd Bergmann <arnd@...db.de>

Thanks Arnd for the Ack.

Srikanth

>
>         Arnd
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