linux-kernel - Re: [PATCH v3 1/6] irqdomain: Add parent field to struct irqchip

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Message-ID: <20260115121751.00004b9f@huawei.com>
Date: Thu, 15 Jan 2026 12:17:51 +0000
From: Jonathan Cameron <jonathan.cameron@...wei.com>
To: Lorenzo Pieralisi <lpieralisi@...nel.org>
CC: "Rafael J. Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>,
	Robert Moore <robert.moore@...el.com>, Hanjun Guo <guohanjun@...wei.com>,
	Sudeep Holla <sudeep.holla@....com>, Marc Zyngier <maz@...nel.org>, "Bjorn
 Helgaas" <bhelgaas@...gle.com>, Thomas Gleixner <tglx@...nel.org>,
	<linux-acpi@...r.kernel.org>, <acpica-devel@...ts.linux.dev>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-pci@...r.kernel.org>
Subject: Re: [PATCH v3 1/6] irqdomain: Add parent field to struct
 irqchip_fwid

On Thu, 15 Jan 2026 10:50:47 +0100
Lorenzo Pieralisi <lpieralisi@...nel.org> wrote:

> The GICv5 driver IRQ domain hierarchy requires adding a parent field to
> struct irqchip_fwid so that core code can reference a fwnode_handle parent
> for a given fwnode.
> 
> Add a parent field to struct irqchip_fwid and update the related kernel API
> functions to initialize and handle it.
> 
> Signed-off-by: Lorenzo Pieralisi <lpieralisi@...nel.org>
> Cc: Thomas Gleixner <tglx@...nel.org>
> Cc: Marc Zyngier <maz@...nel.org>

Reviewed-by: Jonathan Cameron <jonathan.cameron@...wei.com>