Re: [PATCH v7 1/6] soundwire: bus: Allow SoundWire peripherals to register IRQ handlers

[andy.shevchenko@gmail.com]

Fri, Aug 04, 2023 at 11:45:57AM +0100, Charles Keepax kirjoitti:
> From: Lucas Tanure <tanureal@opensource.cirrus.com>
> 
> Currently the in-band alerts for SoundWire peripherals can only
> be communicated to the driver through the interrupt_callback
> function. This however is slightly inconvenient for devices that wish
> to share IRQ handling code between SoundWire and I2C/SPI, the later
> would normally register an IRQ handler with the IRQ subsystem. However
> there is no reason the SoundWire in-band IRQs can not also be
> communicated as an actual IRQ to the driver.
> 
> Add support for SoundWire peripherals to register a normal IRQ
> handler to receive SoundWire in-band alerts, allowing code to be
> shared across control buses. Note that we allow users to use both the
> interrupt_callback and the IRQ handler, this is useful for devices
> which must clear additional chip specific SoundWire registers that are
> not a part of the normal IRQ flow, or the SoundWire specification.

...

> +#include <linux/irqdomain.h>

Added code doesn't use anythitg from above. 
It can be fulfilled with a forward declaration.

-- 
With Best Regards,
Andy Shevchenko