Re: [PATCH v1 1/1] gpio: Support interrupts in gpio-mlxbf2.c

[Andrew Lunn <andrew@xxxxxxx>]

> We cannot really pass it through the ACPI table because the ACPI
> table is common to all BlueField-2 boards.  And each board may have
> a different GPIO pin associated with a particular function. This is
> why we use ACPI properties instead of GpioInt(). So that the
> bootloader can change the GPIO pin value based on the board id
> detected at boot time.

That sounds very broken.

ACPI describes the hardware. If the hardware is different, you need
different ACPI. And i assume the ACPI spec says GpioInt() is the
correct way to do this, and does not say you can hack around
limitations of your bootloader using properties?

	    Andrew