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Re: [Qemu-devel] [PATCH v1 1/1] zynq_slcr: Change the comma to a undersc


From: Markus Armbruster
Subject: Re: [Qemu-devel] [PATCH v1 1/1] zynq_slcr: Change the comma to a underscore
Date: Wed, 09 Apr 2014 10:28:05 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.2 (gnu/linux)

Alistair Francis <address@hidden> writes:

> On Wed, Apr 9, 2014 at 11:14 AM, Peter Crosthwaite
> <address@hidden> wrote:
>> On Wed, Mar 26, 2014 at 1:05 PM, Alistair Francis
>> <address@hidden> wrote:
>>> This patch changes the comma in the "xilinx,zynq_slcr" to an
>>> underscore. This matches every other xilinx* peripheral and
>>> also makes parsing the device via the command line possible.
>>>
>>
>> I think its actually a case of this being slightly ahead and everyone
>> else being behind. The comma is probably ultimately wrong and I'm
>> guessing its awkward for your command-line work due to command line
>> character escaping. I am in favor of the "xlnx.foo" styling that is
>> more widely adopted:
>>
>> [qemu]$ git grep -c "xlnx\."
>> hw/arm/xilinx_zynq.c:1
>> hw/char/xilinx_uartlite.c:2
>> hw/dma/xilinx_axidma.c:2
>> hw/intc/xilinx_intc.c:2
>> hw/microblaze/petalogix_ml605_mmu.c:6
>> hw/microblaze/petalogix_s3adsp1800_mmu.c:5
>> hw/net/xilinx_axienet.c:3
>> hw/net/xilinx_ethlite.c:2
>> hw/ppc/virtex_ml507.c:2
>> hw/ssi/xilinx_spi.c:1
>> hw/ssi/xilinx_spips.c:2
>> hw/timer/xilinx_timer.c:2
>> target-microblaze/cpu.c:1
>>
>> will xlnx.zynq-slcr work? (fix the underscore while at it).
>
> Full stops are fine, just as long as it is not a comma

The most common separator in device model names is '-'.  There's a fair
number of '.', some '_', and a few ','.

The comma are probably rooted in device tree usage.  I doubt that buys
us anything but confusing command line trouble.

I suspect period breaks -global.

I very much recommend picking '-' whenever practical.



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