netdev - Re: [Patch v4 01/12] microblaze: irqchip: Move intc driver to irqchip

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Message-ID: <03e1ee8a-3053-8823-751d-7513b0e316dc@imgtec.com>
Date:   Fri, 2 Sep 2016 12:46:20 +0100
From:   Zubair Lutfullah Kakakhel <Zubair.Kakakhel@...tec.com>
To:     Michal Simek <michal.simek@...inx.com>, <monstr@...str.eu>,
        <ralf@...ux-mips.org>, <tglx@...utronix.de>,
        <jason@...edaemon.net>, <marc.zyngier@....com>
CC:     <soren.brinkmann@...inx.com>, <linux-kernel@...r.kernel.org>,
        <linux-mips@...ux-mips.org>, <netdev@...r.kernel.org>
Subject: Re: [Patch v4 01/12] microblaze: irqchip: Move intc driver to irqchip

Hi,

Thanks for the valuable feedback.
Comments inline


On 09/02/2016 11:27 AM, Michal Simek wrote:
> On 2.9.2016 12:06, Zubair Lutfullah Kakakhel wrote:
>> Hi,
>>
>> On 09/02/2016 07:25 AM, Michal Simek wrote:
>>> On 1.9.2016 18:50, Zubair Lutfullah Kakakhel wrote:
>>>> The Xilinx AXI Interrupt Controller IP block is used by the MIPS
>>>> based xilfpga platform.
>>>>
>>>> Move the interrupt controller code out of arch/microblaze so that
>>>> it can be used by everyone
>>>>
>>>> Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@...tec.com>
>>>>
>>>> ---
>>>> V3 -> V4
>>>> No change
>>>>
>>>> V2 -> V3
>>>> No change here. Cleanup patches follow after this patch.
>>>> Its debatable to cleanup before/after move. Decided to place cleanup
>>>> after move to put history in new place.
>>>>
>>>> V1 -> V2
>>>>
>>>> Renamed irq-xilinx to irq-axi-intc
>>>> Renamed CONFIG_XILINX_INTC to CONFIG_XILINX_AXI_INTC
>>>
>>>
>>> I see that this was suggested by Jason Cooper but using axi name here is
>>> not correct.
>>> There is xps-intc name which is the name used on old OPB hardware
>>> designs. It means this driver can be still used only on system which
>>> uses it.
>>
>> Wouldn't axi-intc be more suitable moving forwards?
>> The IP block is now known as axi intc for 5 years as far as I can tell.
>>
>> Searching "axi intc" online results in the right docs for current and
>> future platforms.
>
> yes but we still should support older platform and it is more then this.
> This is soft-IP core and in future when there is new bus then IP will
> just change bus interface, etc.

That makes sense. I'll rename the driver to irq-xps-intc.c
and CONFIG_XILINX_XPS_INTC

Please shout now if anybody has issues with this.

Regards,
ZubairLK