linux-kernel - Re: [PATCH] of/irq: Handle explicit interrupt parent

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Message-ID: <71a2ecf1-a6dc-450d-8d94-1d03294746b6@sirena.org.uk>
Date: Wed, 19 Nov 2025 14:25:23 +0000
From: Mark Brown <broonie@...nel.org>
To: Geert Uytterhoeven <geert+renesas@...der.be>
Cc: Rob Herring <robh@...nel.org>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Marc Zyngier <maz@...nel.org>,
	devicetree@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] of/irq: Handle explicit interrupt parent

On Wed, Nov 19, 2025 at 02:19:11PM +0100, Geert Uytterhoeven wrote:
> If an interrupt controller is used as a proxy, it may have an
> "interrupt-parent" property, but lack "interrupts" and
> "interrupts-extended" properties.  In that case, the "interrupt-parent"
> property in the interrupt controller node is ignored, causing the
> interrupt controller to fail to probe, and leading to system boot
> failures or crashes.

This fixes x15:

Tested-by: Mark Brown <broonie@...nel.org>

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