linux-kernel - Re: [PATCH v7 24/31] of/irq: Add of_msi

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Message-ID: <CAL_JsqKejEoHhFNfybJVpimXwCGyc4_hqM4w8F54fFnEdMFb0Q@mail.gmail.com>
Date: Thu, 3 Jul 2025 09:52:59 -0500
From: Rob Herring <robh@...nel.org>
To: Lorenzo Pieralisi <lpieralisi@...nel.org>
Cc: Marc Zyngier <maz@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>, 
	Sascha Bischoff <sascha.bischoff@....com>, Jonathan Cameron <Jonathan.Cameron@...wei.com>, 
	Timothy Hayes <timothy.hayes@....com>, Bjorn Helgaas <bhelgaas@...gle.com>, 
	"Liam R. Howlett" <Liam.Howlett@...cle.com>, Peter Maydell <peter.maydell@...aro.org>, 
	Mark Rutland <mark.rutland@....com>, Jiri Slaby <jirislaby@...nel.org>, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH v7 24/31] of/irq: Add of_msi_xlate() helper function

On Thu, Jul 3, 2025 at 5:27 AM Lorenzo Pieralisi <lpieralisi@...nel.org> wrote:
>
> Add an of_msi_xlate() helper that maps a device ID and returns
> the device node of the MSI controller the device ID is mapped to.
>
> Required by core functions that need an MSI controller device node
> pointer at the same time as a mapped device ID, of_msi_map_id() is not
> sufficient for that purpose.
>
> Signed-off-by: Lorenzo Pieralisi <lpieralisi@...nel.org>
> Reviewed-by: Marc Zyngier <maz@...nel.org>
> Cc: Rob Herring <robh@...nel.org>
> Cc: Marc Zyngier <maz@...nel.org>
> ---
>  drivers/of/irq.c       | 22 +++++++++++++++++-----
>  include/linux/of_irq.h |  5 +++++
>  2 files changed, 22 insertions(+), 5 deletions(-)

Reviewed-by: Rob Herring (Arm) <robh@...nel.org>