linux-kernel - Re: [PATCH v2 1/8] ARM: dts: dra7: Initialize USB

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Message-ID: <531DBEDD.9050400@ti.com>
Date:	Mon, 10 Mar 2014 15:32:13 +0200
From:	Roger Quadros <rogerq@...com>
To:	Tero Kristo <t-kristo@...com>, <tony@...mide.com>
CC:	<balbi@...com>, <kishon@...com>, <george.cherian@...com>,
	<linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-usb@...r.kernel.org>, Mike Turquette <mturquette@...aro.org>
Subject: Re: [PATCH v2 1/8] ARM: dts: dra7: Initialize USB_DPLL

On 03/10/2014 03:28 PM, Tero Kristo wrote:
> On 03/10/2014 02:49 PM, Roger Quadros wrote:
>> USB_DPLL must be initialized and locked at boot so that
>> USB modules can work.
>>
>> Program USB_DLL_M2 output to half rate as well.
>>
>> Patch depends on
>> https://www.mail-archive.com/linux-omap@vger.kernel.org/msg101300.html
>>
>> CC: Mike Turquette <mturquette@...aro.org>
>> CC: Tero Kristo <t-kristo@...com>
>> Signed-off-by: Roger Quadros <rogerq@...com>
>> ---
>>   arch/arm/boot/dts/dra7.dtsi | 8 ++++++++
>>   1 file changed, 8 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
>> index 597979b..f376923 100644
>> --- a/arch/arm/boot/dts/dra7.dtsi
>> +++ b/arch/arm/boot/dts/dra7.dtsi
>> @@ -815,3 +815,11 @@
>>   };
>>
>>   /include/ "dra7xx-clocks.dtsi"
>> +
>> +&dpll_usb_ck {
>> +        default-rate = <960000000>;
>> +};
>> +
>> +&dpll_usb_m2_ck {
>> +    default-rate = <480000000>;
>> +};
>>
> 
> You can add these directly under the dra7xx-clocks.dtsi file as well, as I don't think anybody needs to modify these. And the properties can be added directly under the nodes themselves.
> 
> However, this patch can't be acked yet as we have no feedback from Mike for the default-rate proposal.

OK. I'll wait for the "default-rate" patch to be approved first and then revise this patch based on your
suggestion. Thanks for the review.

cheers,
-roger
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