Re: [PATCH v1 2/2] regulator: pf9453: Allow shared IRQ

[Mark Brown]

On Wed, Feb 18, 2026 at 11:25:15AM +0100, Franz Schnyder wrote:

> Set the IRQF_SHARED to be able to share the interrupt line with
> other devices.

This won't actually work properly, the existing interrupt handler
unconditionally returns IRQ_HANDLED so it will flag as having handled
the interrupt even if it was another device that triggered the
interrupt.  The driver needs to be changed to return IRQ_NONE if there
were no interrupts flagged by the device so that other devices sharing
the line get a chance to run.

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