Thread (12 messages) 12 messages, 3 authors, 2026-08-12

Re: [PATCH 4/5] pinctrl: baytrail: Propagate errors from optional IRQ lookup

From: Andy Shevchenko <hidden>
Date: 2026-08-10 06:57:11
Also in: linux-gpio, lkml

On Mon, Aug 10, 2026 at 8:32 AM [off-list ref] wrote:
From: bui duc phuc <redacted>

platform_get_irq_optional() returns a positive IRQ number on success or
a negative error code on failure. For an optional IRQ, -ENXIO indicates
that no optional IRQ is available, while other errors should be propagated.

Propagate all error codes returned by platform_get_irq_optional() other
than -ENXIO.
On this platform (ACPI-based) there are no other possibilities to get
something meaningful that can be returned (deferred probe). The rest
of the error codes will actually regress since the user won't have a
pin control driver at all, instead of having it IRQ-less (which is
doubtfully useful, though). Have you considered that scenario?

-- 
With Best Regards,
Andy Shevchenko
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