linux-kernel - Re: [PATCH 3/7] mmc: dw_mmc: add device tree support

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Message-ID: <CAJuYYwRpzBwTA2WkOgrnCtUFUwms4=eKjMOrOXQ9_uGiz80a3A@mail.gmail.com>
Date:	Thu, 10 May 2012 16:14:15 +0530
From:	Thomas Abraham <thomas.abraham@...aro.org>
To:	James Hogan <james@...anarts.com>
Cc:	linux-mmc@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	cjb@...top.org, grant.likely@...retlab.ca, rob.herring@...xeda.com,
	linux-samsung-soc@...r.kernel.org, kgene.kim@...sung.com,
	patches@...aro.org
Subject: Re: [PATCH 3/7] mmc: dw_mmc: add device tree support

On 10 May 2012 16:02, James Hogan <james@...anarts.com> wrote:
> Hi
>
> On 2 May 2012 06:07, Thomas Abraham <thomas.abraham@...aro.org> wrote:
>> Add device tree based discovery support.
>>
>> Signed-off-by: Thomas Abraham <thomas.abraham@...aro.org>
>> ---
>>  .../devicetree/bindings/mmc/synposis-dw-mshc.txt   |   85 +++++++++
>>  drivers/mmc/host/dw_mmc-pltfm.c                    |   24 +++
>>  drivers/mmc/host/dw_mmc.c                          |  181 +++++++++++++++++++-
>>  drivers/mmc/host/dw_mmc.h                          |   10 +
>>  include/linux/mmc/dw_mmc.h                         |    2 +
>>  5 files changed, 296 insertions(+), 6 deletions(-)
>>  create mode 100644 Documentation/devicetree/bindings/mmc/synposis-dw-mshc.txt
>>
>> diff --git a/Documentation/devicetree/bindings/mmc/synposis-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synposis-dw-mshc.txt
>> new file mode 100644
>> index 0000000..c1ed70e
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mmc/synposis-dw-mshc.txt
>> @@ -0,0 +1,85 @@
>> +* Synopsis Designware Mobile Storage Host Controller
>> +
>> +The Synopsis designware mobile storage host controller is used to interface
>> +a SoC with storage medium such as eMMC or SD/MMC cards.
>> +
>> +Required Properties:
>> +
>> +* compatible: should be one of the following
>> +       - synopsis,dw-mshc: for controllers compliant with synopsis dw-mshc.
>
> Note that although undocumented in
> Documentation/devicetree/bindings/vendor-prefixes.txt (which it
> probably should be), the designware uart already uses a different
> prefix:
> { .compatible = "snps,dw-apb-uart" },
> http://lxr.linux.no/#linux+v3.3.5/drivers/tty/serial/8250/8250_dw.c#L165

Thanks James for pointing this out. I will change the prefix for mshc
controller bindings to be consistent with that of the uart controller.

Thanks,
Thomas.

>
> Cheers
> James
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