From: Eric Anholt <eric@anholt.net>
To: Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-arm-kernel@lists.infradead.org,
linux-rpi-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Lee Jones <lee@kernel.org>,
devicetree@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>
Subject: Re: [PATCH 3/4] irqchip: Add documentation for the bcm2836 interrupt controller.
Date: Fri, 10 Jul 2015 23:01:01 -0700 [thread overview]
Message-ID: <87io9r9qsi.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <55A0A251.1010301@wwwdotorg.org>
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Stephen Warren <swarren@wwwdotorg.org> writes:
> On 07/07/2015 03:13 PM, Eric Anholt wrote:
>> This is a new per-cpu root interrupt controller on the Raspberry Pi 2,
>> which will chain to the bcm2835 interrupt controller for peripheral
>> interrupts.
>
>> diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt
>
>> +local_intc: local_intc {
>
>> + interrupt-parent = <&local_intc>;
>
> I think that property shouldn't be there?
If you don't have it there, the core finds the interrupt-parent in the
parent node, and waits for that one before initializing (which is in
turn waiting for us). Note that for original 2835, you're finding the
parent node as well.
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WARNING: multiple messages have this Message-ID (diff)
From: Eric Anholt <eric@anholt.net>
To: Stephen Warren <swarren@wwwdotorg.org>
Cc: devicetree@vger.kernel.org, Jason Cooper <jason@lakedaemon.net>,
Lee Jones <lee@kernel.org>,
linux-kernel@vger.kernel.org,
linux-rpi-kernel@lists.infradead.org,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 3/4] irqchip: Add documentation for the bcm2836 interrupt controller.
Date: Fri, 10 Jul 2015 23:01:01 -0700 [thread overview]
Message-ID: <87io9r9qsi.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <55A0A251.1010301@wwwdotorg.org>
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Stephen Warren <swarren@wwwdotorg.org> writes:
> On 07/07/2015 03:13 PM, Eric Anholt wrote:
>> This is a new per-cpu root interrupt controller on the Raspberry Pi 2,
>> which will chain to the bcm2835 interrupt controller for peripheral
>> interrupts.
>
>> diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt
>
>> +local_intc: local_intc {
>
>> + interrupt-parent = <&local_intc>;
>
> I think that property shouldn't be there?
If you don't have it there, the core finds the interrupt-parent in the
parent node, and waits for that one before initializing (which is in
turn waiting for us). Note that for original 2835, you're finding the
parent node as well.
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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 3/4] irqchip: Add documentation for the bcm2836 interrupt controller.
Date: Fri, 10 Jul 2015 23:01:01 -0700 [thread overview]
Message-ID: <87io9r9qsi.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <55A0A251.1010301@wwwdotorg.org>
Stephen Warren <swarren@wwwdotorg.org> writes:
> On 07/07/2015 03:13 PM, Eric Anholt wrote:
>> This is a new per-cpu root interrupt controller on the Raspberry Pi 2,
>> which will chain to the bcm2835 interrupt controller for peripheral
>> interrupts.
>
>> diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt
>
>> +local_intc: local_intc {
>
>> + interrupt-parent = <&local_intc>;
>
> I think that property shouldn't be there?
If you don't have it there, the core finds the interrupt-parent in the
parent node, and waits for that one before initializing (which is in
turn waiting for us). Note that for original 2835, you're finding the
parent node as well.
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next prev parent reply other threads:[~2015-07-11 6:08 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-07 21:13 Raspberry Pi 2 support, part 1: Interrupt controller Eric Anholt
2015-07-07 21:13 ` Eric Anholt
2015-07-07 21:13 ` Eric Anholt
2015-07-07 21:13 ` [PATCH 1/4] irqchip: bcm2835: Refactor handle_IRQ() calls out of MAKE_HWIRQ Eric Anholt
2015-07-07 21:13 ` Eric Anholt
2015-07-07 21:13 ` Eric Anholt
2015-07-07 21:13 ` [PATCH 2/4] irqchip: bcm2835: If a parent interrupt is registered, chain from it Eric Anholt
2015-07-07 21:13 ` Eric Anholt
2015-07-07 21:13 ` [PATCH 3/4] irqchip: Add documentation for the bcm2836 interrupt controller Eric Anholt
2015-07-07 21:13 ` Eric Anholt
2015-07-07 21:13 ` Eric Anholt
2015-07-11 4:57 ` Stephen Warren
2015-07-11 4:57 ` Stephen Warren
2015-07-11 4:57 ` Stephen Warren
2015-07-11 6:01 ` Eric Anholt [this message]
2015-07-11 6:01 ` Eric Anholt
2015-07-11 6:01 ` Eric Anholt
2015-07-14 5:08 ` Stephen Warren
2015-07-14 5:08 ` Stephen Warren
2015-07-14 5:08 ` Stephen Warren
2015-07-07 21:13 ` [PATCH 4/4] irqchip: Add bcm2836 interrupt controller for Raspberry Pi 2 Eric Anholt
2015-07-07 21:13 ` Eric Anholt
2015-07-07 21:13 ` Eric Anholt
2015-07-11 5:13 ` Stephen Warren
2015-07-11 5:13 ` Stephen Warren
2015-07-11 5:13 ` Stephen Warren
2015-07-11 7:51 ` Thomas Gleixner
2015-07-11 7:51 ` Thomas Gleixner
2015-07-11 7:51 ` Thomas Gleixner
2015-07-13 16:06 ` Eric Anholt
2015-07-13 16:06 ` Eric Anholt
2015-07-14 5:09 ` Stephen Warren
2015-07-14 5:09 ` Stephen Warren
2015-07-14 5:09 ` Stephen Warren
2015-07-13 18:48 ` Eric Anholt
2015-07-13 18:48 ` Eric Anholt
2015-07-13 18:48 ` Eric Anholt
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