linux-kernel - Re: [PATCH v2 2/6] ARM: davinci: da850: add DT node for mdio device

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Message-ID: <CA+V-a8uMeG-=hTgTSOMRJ-Cr9mXwidu4mQaT5eQ+U7wiWj8MuQ@mail.gmail.com>
Date:	Sun, 3 Feb 2013 17:47:53 +0530
From:	Prabhakar Lad <prabhakar.csengg@...il.com>
To:	Sekhar Nori <nsekhar@...com>
Cc:	linux-arm-kernel@...ts.infradead.org,
	davinci-linux-open-source@...ux.davincidsp.com,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org, Heiko Schocher <hs@...x.de>,
	"Lad, Prabhakar" <prabhakar.lad@...com>
Subject: Re: [PATCH v2 2/6] ARM: davinci: da850: add DT node for mdio device

Sekhar,

On Sun, Feb 3, 2013 at 5:23 PM, Sekhar Nori <nsekhar@...com> wrote:
> On 1/28/2013 7:17 PM, Prabhakar Lad wrote:
>> From: Lad, Prabhakar <prabhakar.lad@...com>
>>
>> Add mdio device tree node information to da850 by
>> providing register details and bus frequency of mdio.
>>
>> Signed-off-by: Lad, Prabhakar <prabhakar.lad@...com>
>> Cc: linux-arm-kernel@...ts.infradead.org
>> Cc: linux-kernel@...r.kernel.org
>> Cc: davinci-linux-open-source@...ux.davincidsp.com
>> Cc: netdev@...r.kernel.org
>> Cc: devicetree-discuss@...ts.ozlabs.org
>> Cc: Sekhar Nori <nsekhar@...com>
>> Cc: Heiko Schocher <hs@...x.de>
>> ---
>>  arch/arm/boot/dts/da850-evm.dts |    3 +++
>>  arch/arm/boot/dts/da850.dtsi    |    7 +++++++
>>  2 files changed, 10 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
>> index 98c1a48..a319491 100644
>> --- a/arch/arm/boot/dts/da850-evm.dts
>> +++ b/arch/arm/boot/dts/da850-evm.dts
>> @@ -27,6 +27,9 @@
>>               serial2: serial@...d000 {
>>                       status = "okay";
>>               };
>> +             mdio: davinci_mdio@...4000 {
>
> This should just be:
>
> mdio: mdio@...4000
>
> inline with how we avoid adding davinci prefix to each node name.
>
Ok

>> +                     status = "okay";
>> +             };
>>       };
>>       nand_cs3@...00000 {
>>               status = "okay";
>> diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
>> index 7c84822..ba28f2d 100644
>> --- a/arch/arm/boot/dts/da850.dtsi
>> +++ b/arch/arm/boot/dts/da850.dtsi
>> @@ -81,6 +81,13 @@
>>                       interrupts = <61>;
>>                       status = "disabled";
>>               };
>> +             mdio: davinci_mdio@...4000 {
>> +                     compatible = "ti,davinci_mdio";
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     reg = <0x224000 0x1000>;
>> +                     bus_freq = <2200000>;
>
> The bus frequency is board specific and it is better this is defined in
> da850-evm.dts
>
Ok I'll move this to dts file.

Regards,
--Prabhakar

> Thanks,
> Sekhar
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