irqchip/ls-extirq: Convert to a platform driver to make it work again

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Starting with the blamed commit, the ls-extirq driver stopped working. This
is because ls-extirq, being one of the interrupt-map property abusers, does
not pass the DT checks added by the referenced commit, making it unable to
determine its interrupt parent:

  irq-ls-extirq: Cannot find parent domain
  OF: of_irq_init: Failed to init /soc/syscon@1f70000/interrupt-controller@14
      		   ((____ptrval____)), parent 0000000000000000

Instead of reverting the referenced commit, convert the ls-extirq to a
platform driver to avoid the irqchip_init() -> of_irq_init() code path
completely.

As part of the conversion, use the managed resources APIs and
dev_err_probe() so that there is no need for a .remove() callback or for
complicated error handling.

Fixes: 1b1f04d827 ("of/irq: Ignore interrupt parent for nodes without interrupts")
Co-developed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260122134034.3274053-2-ioana.ciornei@nxp.com

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This commit is contained in:

Ioana Ciornei 2026-01-22 15:40:33 +02:00 • committed by Thomas Gleixner

parent 63804fed14

commit 05cd654829

1 changed files with 36 additions and 39 deletions

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drivers/irqchip/irq-ls-extirq.c

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