linux-kernel - RE: [PATCH 2/2] regmap: add DT endianness binding support.

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Message-ID: <db42049ab0384d9cb50a9d91ab504796@BY2PR03MB505.namprd03.prod.outlook.com>
Date:	Wed, 2 Apr 2014 10:13:07 +0000
From:	"Li.Xiubo@...escale.com" <Li.Xiubo@...escale.com>
To:	"Li.Xiubo@...escale.com" <Li.Xiubo@...escale.com>,
	"broonie@...nel.org" <broonie@...nel.org>
CC:	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 2/2] regmap: add DT endianness binding support.

Please discard this patch series:

There has some problems about the commit message, I will resend
this patch series.



> Subject: [PATCH 2/2] regmap: add DT endianness binding support.
> 
> For many drivers which will support rich endianness of CPU<-->Dev
> need define DT properties by itself without the binding support.
> 
> The value endianness using regmap-mmio, for example:
> Index    CPU       Device     Endianess flag for DT property
> ------------------------------------------------------------
> 1        LE        LE         -
> 2        LE        BE         'little-endian'


Should be 'big-endian' here.


> 3        BE        BE         -
> 4        BE        LE         'big-endian'
> 

Should be 'little-endian' here.


> ============
> 
> Here add DT endianness binding support will define two string
> properties of the register and value endiannesses:
> 
> 'reg-endian' and 'val-endian'.
> 
> And the value of them will be:
> 'LE' : REGMAP_ENDIAN_LITTLE
> 'BE' : REGMAP_ENDIAN_BIG
> 'NT' : REGMAP_ENDIAN_NATIVE
> Absent : REGMAP_ENDIAN_DEFAULT
> 
> The value endianness using regmap-mmio, for example:
> Index    CPU       Device     Endianess flag for DT property
> ------------------------------------------------------------
> 1        LE        LE         'NT' or absent
> 2        LE        BE         'LE'

Should be 'BE' here.


> 3        BE        BE         'NT' or absent
> 4        BE        LE         'BE'
> 

Should 'LE' here.



> Please see the following documetation for detail usage:
>     Documentation/devicetree/bindings/regmap/regmap-endianness.txt
> 

Thanks,

BRs
Xiubo


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