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From: Eric Anholt <eric@anholt.net>
To: Vince Weaver <vincent.weaver@maine.edu>
Cc: Florian Fainelli <f.fainelli@gmail.com>,
	linux-kernel@vger.kernel.org,
	bcm-kernel-feedback-list@broadcom.com,
	linux-rpi-kernel@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] arm: bcm2835: Add the PMU to the devicetree.
Date: Thu, 17 May 2018 15:30:11 +0100	[thread overview]
Message-ID: <87efia1hjg.fsf@anholt.net> (raw)
In-Reply-To: <alpine.DEB.2.21.1805171007260.7820@macbook-air>

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Vince Weaver <vincent.weaver@maine.edu> writes:

> On Thu, 17 May 2018, Eric Anholt wrote:
>
>> diff --git a/arch/arm/boot/dts/bcm2837.dtsi b/arch/arm/boot/dts/bcm2837.dtsi
>> index 7704bb029605..1f5e5c782835 100644
>> --- a/arch/arm/boot/dts/bcm2837.dtsi
>> +++ b/arch/arm/boot/dts/bcm2837.dtsi
>> @@ -17,6 +17,12 @@
>>  		};
>>  	};
>>  
>> +	arm-pmu {
>> +		compatible = "arm,cortex-a53-pmu", "arm,cortex-a7-pmu";
>> +		interrupt-parent = <&local_intc>;
>> +		interrupts = <9 IRQ_TYPE_LEVEL_HIGH>;
>> +	};
>> +
>
> why this and not
>
> arm-pmu {
> 	compatible = "arm,armv8-pmuv3";
> 	interrupt-parent = <&local_intc>;
> 	interrupts = <9>;
> };
>
> which works, though when I didn't get very far when I submitted the patch 
> to add this last August.

Is that better than a53?  I'm happy to switch to that.  The important
part to me is the a7, since basically everyone with this hw is running
arm32.

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WARNING: multiple messages have this Message-ID (diff)
From: eric@anholt.net (Eric Anholt)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm: bcm2835: Add the PMU to the devicetree.
Date: Thu, 17 May 2018 15:30:11 +0100	[thread overview]
Message-ID: <87efia1hjg.fsf@anholt.net> (raw)
In-Reply-To: <alpine.DEB.2.21.1805171007260.7820@macbook-air>

Vince Weaver <vincent.weaver@maine.edu> writes:

> On Thu, 17 May 2018, Eric Anholt wrote:
>
>> diff --git a/arch/arm/boot/dts/bcm2837.dtsi b/arch/arm/boot/dts/bcm2837.dtsi
>> index 7704bb029605..1f5e5c782835 100644
>> --- a/arch/arm/boot/dts/bcm2837.dtsi
>> +++ b/arch/arm/boot/dts/bcm2837.dtsi
>> @@ -17,6 +17,12 @@
>>  		};
>>  	};
>>  
>> +	arm-pmu {
>> +		compatible = "arm,cortex-a53-pmu", "arm,cortex-a7-pmu";
>> +		interrupt-parent = <&local_intc>;
>> +		interrupts = <9 IRQ_TYPE_LEVEL_HIGH>;
>> +	};
>> +
>
> why this and not
>
> arm-pmu {
> 	compatible = "arm,armv8-pmuv3";
> 	interrupt-parent = <&local_intc>;
> 	interrupts = <9>;
> };
>
> which works, though when I didn't get very far when I submitted the patch 
> to add this last August.

Is that better than a53?  I'm happy to switch to that.  The important
part to me is the a7, since basically everyone with this hw is running
arm32.
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  reply	other threads:[~2018-05-17 14:30 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-17 13:17 [PATCH] arm: bcm2835: Add the PMU to the devicetree Eric Anholt
2018-05-17 13:17 ` Eric Anholt
2018-05-17 14:11 ` Vince Weaver
2018-05-17 14:11   ` Vince Weaver
2018-05-17 14:30   ` Eric Anholt [this message]
2018-05-17 14:30     ` Eric Anholt
2018-05-17 16:02     ` Vince Weaver
2018-05-17 16:02       ` Vince Weaver
2018-05-17 16:06   ` Stefan Wahren
2018-05-17 16:06     ` Stefan Wahren
2018-05-17 15:59 ` Stefan Wahren
2018-05-17 15:59   ` Stefan Wahren
2018-05-17 16:34   ` Vince Weaver
2018-05-17 16:34     ` Vince Weaver
2018-05-17 16:55     ` Stefan Wahren
2018-05-17 16:55       ` Stefan Wahren
2018-05-17 18:07       ` Peter Zijlstra
2018-05-17 18:07         ` Peter Zijlstra
2018-05-17 18:27         ` Vince Weaver
2018-05-17 18:27           ` Vince Weaver
2018-05-17 19:31           ` Vince Weaver
2018-05-17 19:31             ` Vince Weaver
2018-05-17 19:59             ` Florian Fainelli
2018-05-17 19:59               ` Florian Fainelli
2018-05-18  8:07               ` Marc Zyngier
2018-05-18  8:07                 ` Marc Zyngier
2018-05-18  9:37                 ` Stefan Wahren
2018-05-18  9:37                   ` Stefan Wahren
2018-05-18  9:49                   ` Marc Zyngier
2018-05-18  9:49                     ` Marc Zyngier
2018-05-17 17:09     ` Eric Anholt
2018-05-17 17:09       ` Eric Anholt
2018-05-17 16:44 ` Peter Robinson
2018-05-17 16:44   ` Peter Robinson

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