linux-kernel - Re: (subset) [PATCH v3 0/3] spi: xilinx: switch to device properties and make IRQs optional

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Message-ID: <83b93899-8f48-47cb-a74a-b4e838cc463b@sirena.org.uk>
Date: Wed, 21 Jan 2026 11:39:26 +0000
From: Mark Brown <broonie@...nel.org>
To: Michal Simek <michal.simek@....com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Abdurrahman Hussain <abdurrahman@...thop.ai>,
	linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: (subset) [PATCH v3 0/3] spi: xilinx: switch to device properties
 and make IRQs optional

On Wed, Jan 21, 2026 at 09:15:02AM +0100, Michal Simek wrote:
> On 1/20/26 20:23, Mark Brown wrote:

> > [1/3] spi: dt-bindings: xilinx: make interrupts optional
> >        commit: b603500de20fbe15ee54580481c1df4212a4ec44

> Are you sure about this one based on my discussion with Rob in past?
> https://lore.kernel.org/all/20250605130331.GA2370690-robh@kernel.org/

> I don't really mind but would be good to do it in a consistent way.

My understanding was that the hardware doesn't require physically wiring
up the interrupt signal and can work in a polling only mode.  That's not
unknown for SPI controllers.  If the interrupt is actually a strong
requirement for the hardware (and especially if it is actually wired up
on this system) then we should drop these patches.

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