linux-kernel - Re: [PATCH RESEND v4] spi/pl022: add devicetree support

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Date:	Mon, 20 Aug 2012 10:53:35 -0500
From:	Rob Herring <robherring2@...il.com>
To:	Roland Stigge <stigge@...com.de>
CC:	Alexandre Pereira da Silva <aletes.xgr@...il.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Landley <rob@...dley.net>,
	devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	spi-devel-general@...ts.sourceforge.net,
	"Mark Brown (broonie@...nsource.wolfsonmicro.com)" 
	<broonie@...nsource.wolfsonmicro.com>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH RESEND v4] spi/pl022: add devicetree support

On 08/20/2012 10:33 AM, Roland Stigge wrote:
> On 08/20/2012 04:22 PM, Rob Herring wrote:
>>>  .../devicetree/bindings/spi/spi_pl022.txt          |   15 +++
>>>  drivers/spi/spi-pl022.c                            |  114 ++++++++++++++++----
>>>  2 files changed, 110 insertions(+), 19 deletions(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/spi/spi_pl022.txt b/Documentation/devicetree/bindings/spi/spi_pl022.txt
>>> index 306ec3f..b089ec7 100644
>>> --- a/Documentation/devicetree/bindings/spi/spi_pl022.txt
>>> +++ b/Documentation/devicetree/bindings/spi/spi_pl022.txt
>>> @@ -6,7 +6,22 @@ Required properties:
>>>  - interrupts : Should contain SPI controller interrupt
>>>  
>>>  Optional properties:
>>> +- pl022,num-chipselects : total number of chipselects
>>
>> We have this for other spi controllers too. Define a generic property.
> 
> Currently, we have:
> 
> num-cs
> ti,spi-num-cs
> fsl,spi-num-chipselects
> fsl,espi-num-chipselects
> (pl022,num-chipselects)
> 
> Would "num-cs" be the right one to use?

Well, it is either that or invent something new, so I think num-cs is fine.

Rob
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