On Fri, Oct 18, 2019 at 11:08:42AM +0200, Hans de Goede wrote:
> Commit 03c4749dd6c7 ("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux
> GPIO translation") has made the cherryview gpio numbers sparse, to get
> a 1:1 mapping between ACPI pin numbers and gpio numbers in Linux.
>
> This has greatly simplified things, but the code setting the
> irq_valid_mask was not updated for this, so the valid mask is still in
> the old "compressed" numbering with the gaps in the pin numbers skipped,
> which is wrong as irq_valid_mask needs to be expressed in gpio numbers.
>
> This results in the following error on devices using pin 24 (0x0018) on
> the north GPIO controller as an ACPI event source:
>
> [ 0.422452] cherryview-pinctrl INT33FF:01: Failed to translate GPIO to IRQ
>
> This has been reported (by email) to be happening on a Caterpillar CAT T20
> tablet and I've reproduced this myself on a Medion Akoya e2215t 2-in-1.
>
> This commit uses the pin number instead of the compressed index into
> community->pins to clear the correct bits in irq_valid_mask for GPIOs
> using GPEs for interrupts, fixing these errors and in case of the
> Medion Akoya e2215t also fixing the LID switch not working.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Cc: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
> Fixes: 03c4749dd6c7 ("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux GPIO translation")
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Applied to intel.git/fixes, thanks!
