linux-kernel - Re: [PATCH 3/3] ARM64: dts: enable clock support for Broadcom NS2

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Message-ID: <564D134E.8070205@broadcom.com>
Date:	Wed, 18 Nov 2015 16:09:50 -0800
From:	Ray Jui <rjui@...adcom.com>
To:	Florian Fainelli <f.fainelli@...il.com>,
	Jon Mason <jonmason@...adcom.com>,
	Hauke Mehrtens <hauke@...ke-m.de>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	"Kumar Gala" <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>
CC:	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>,
	<bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [PATCH 3/3] ARM64: dts: enable clock support for Broadcom NS2



On 11/18/2015 4:07 PM, Florian Fainelli wrote:
> On 18/11/15 16:03, Ray Jui wrote:
>>
>>
>> On 11/18/2015 3:13 PM, Jon Mason wrote:
>>> Add device tree entries for clock support for Broadcom Northstar 2 SoC
>>>
>>> Signed-off-by: Jon Mason <jonmason@...adcom.com>
>>> ---
>>>    arch/arm64/boot/dts/broadcom/ns2.dtsi | 80
>>> ++++++++++++++++++++++++++++++++++-
>>>    1 file changed, 79 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/arch/arm64/boot/dts/broadcom/ns2.dtsi
>>> b/arch/arm64/boot/dts/broadcom/ns2.dtsi
>>> index 9610822..a510d3a 100644
>>> --- a/arch/arm64/boot/dts/broadcom/ns2.dtsi
>>> +++ b/arch/arm64/boot/dts/broadcom/ns2.dtsi
>>> @@ -31,6 +31,7 @@
>>>     */
>>>
>>>    #include <dt-bindings/interrupt-controller/arm-gic.h>
>>> +#include <dt-bindings/clock/bcm-ns2.h>
>>>
>>>    /memreserve/ 0x84b00000 0x00000008;
>>>
>>> @@ -109,6 +110,33 @@
>>>                         <&A57_3>;
>>>        };
>>>
>>> +    clocks {
>>
>> Is this a new convention? That is, group all clocks without a base
>> register address in a node named "clocks", but at the same time, put all
>> other clocks with base register address under a bus node.
>
> I do not think that is new, lots of platforms do that. The clock
> providers/controllers would typically be in the 'bus' nodes because it
> has a register interface, while the synthetic clocks would be under
> 'clocks'.
>

Okay that's very good to know. Thanks!

Ray
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