linux-kernel - Re: [PATCH v2 1/2] video, sm501: add OF binding to support SM501

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Date:	Mon, 13 Dec 2010 08:01:06 +0100
From:	Heiko Schocher <hs@...x.de>
To:	Randy Dunlap <rdunlap@...otime.net>
Cc:	linuxppc-dev@...ts.ozlabs.org, linux-fbdev@...r.kernel.org,
	devicetree-discuss@...abs.org, Ben Dooks <ben@...tec.co.uk>,
	Vincent Sanders <vince@...tec.co.uk>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] video, sm501: add OF binding to support SM501

Hello Randy,

Randy Dunlap wrote:
> On Sat, 11 Dec 2010 07:31:15 +0100 Heiko Schocher wrote:
> 
>> - add commandline options:
>>   sm501.fb_mode:
> 
>     sm501.mode:

Sorry, type, should be "sm501fb.mode", thanks!

>>     Specify resolution as "<xres>x<yres>[-<bpp>][@<refresh>]"
>>   sm501.bpp:

Here too, "sm501fb.bpp"

>>     Specify bit-per-pixel if not specified mode
>>
>> ---
>>
>>  Documentation/kernel-parameters.txt          |    7 +
>>  Documentation/powerpc/dts-bindings/sm501.txt |   30 +++
>>  drivers/mfd/sm501.c                          |  141 ++++++++------
>>  drivers/video/sm501fb.c                      |  264 +++++++++++++++++---------
>>  include/linux/sm501.h                        |    8 +
>>  5 files changed, 299 insertions(+), 151 deletions(-)
>>  create mode 100644 Documentation/powerpc/dts-bindings/sm501.txt
>>
>> diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
>> index cdd2a6e..6341541 100644
>> --- a/Documentation/kernel-parameters.txt
>> +++ b/Documentation/kernel-parameters.txt
>> @@ -2301,6 +2301,13 @@ and is between 256 and 4096 characters. It is defined in the file
>>  			merging on their own.
>>  			For more information see Documentation/vm/slub.txt.
>>  
>> +	sm501.bpp=	SM501 Display driver:
>> +			Specify bit-per-pixel if not specified mode
> 
> 			Specifiy bits-per-pixel if not specified by 'mode'
> 
>> +
>> +	sm501fb.mode=	SM501 Display driver:
> 
> Shouldn't that be sm501.mode ?

No, the name of the source file is sm501fb.c -> sm501fb is right here.
As the sm501 is a multifunction device, the "fb" is more precise here.

>> +			Specify resolution as
>> +			"<xres>x<yres>[-<bpp>][@<refresh>]"
>> +
>>  	smart2=		[HW]
>>  			Format: <io1>[,<io2>[,...,<io8>]]
> 
> 
> However, I think that these shouldn't be added to Documentation/kernel-parameters.txt
> but should be added to the Documentation/fb/ sub-directory either by adding to
> Documentation/fb/modedb.txt or by adding a new file Documentation/fb/sm501.txt.

Ok, do this. Thanks for the review!

bye,
Heiko
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