[PATCH] of/irq: Convert of_msi_map_id() callers to of_msi_xlate()
Rob Herring
robh at kernel.org
Wed Aug 13 11:52:44 PDT 2025
On Tue, Aug 05, 2025 at 03:34:43PM +0200, Lorenzo Pieralisi wrote:
> With the introduction of the of_msi_xlate() function, the OF layer
> provides an API to map a device ID and retrieve the MSI controller
> node the ID is mapped to with a single call.
>
> of_msi_map_id() is currently used to map a deviceID to a specific
> MSI controller node; of_msi_xlate() can be used for that purpose
> too, there is no need to keep the two functions.
>
> Convert of_msi_map_id() to of_msi_xlate() calls and update the
> of_msi_xlate() documentation to describe how the struct device_node
> pointer passed in should be set-up to either provide the MSI controller
> node target or receive its pointer upon mapping completion.
>
> Signed-off-by: Lorenzo Pieralisi <lpieralisi at kernel.org>
> Cc: Thomas Gleixner <tglx at linutronix.de>
> Cc: Rob Herring <robh at kernel.org>
> Cc: Marc Zyngier <maz at kernel.org>
> ---
> As suggested by RobH:
>
> https://lore.kernel.org/lkml/20250627213241.GA168190-robh@kernel.org/
>
> drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c | 2 +-
> drivers/of/irq.c | 25 +++++----------------
> drivers/pci/msi/irqdomain.c | 2 +-
> include/linux/of_irq.h | 6 -----
> 4 files changed, 7 insertions(+), 28 deletions(-)
Looks good to me. I'm happy to take it with some acks.
Rob
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