On Wed, Jan 27, 2021 at 05:24:46PM +0000, Andre Przywara wrote:

Currently the AXP chip requires to have its IRQ line connected to some
interrupt controller, and will fail probing when this is not the case.

On a new Allwinner SoC (H616) there is no NMI pin anymore, and at
least one board does not connect the AXP's IRQ pin to anything else,
so the interrupt functionality of the AXP chip is simply not available.

Check whether the interrupt line number returned by the platform code is
valid, before trying to register the irqchip. If not, we skip this
registration, to avoid the driver to bail out completely.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>

Acked-by: Maxime Ripard <mripard@kernel.org>

Maxime