Re: [PATCH] platform/x86/amd/pmc: Add spurious_8042 to ASUS ROG Flow Z13 GZ302EA

[Mario Limonciello <superm1@kernel.org>]

On 9/29/26 13:16, Matthew Schwartz wrote:
> The ASUS ROG Flow Z13 (GZ302EA/GZ302EAC) wakes up from suspend-to-idle
> without any user input. With PM debug messages enabled, each unexpected
> wakeup shows the EC raising IRQ1 at the same time as the ACPI SCI:
> 
>    PM: Triggering wakeup from IRQ 9
>    PM: Triggering wakeup from IRQ 1
>    ACPI: EC: Query(0xa3) started
>    ACPI: PM: Wakeup after ACPI Notify sync
> 
> EC query 0xa3 only notifies the battery of a status change, which
> happens when it transitions between Charging and Full while on AC.
> The ACPI core correctly treats that as a non-wakeup event and cancels
> the SCI wakeup, but the IRQ1 wakeup remains pending and resumes the
> system. i8042 debugging confirms that the keyboard controller has no
> data at that point ("Interrupt 1, without any data").
> 
> The detachable keyboard on this device is a USB device, so disabling
> the i8042 wakeup source does not result in any functional loss. With
> serio0 wakeup disabled, the same battery event is processed during
> suspend-to-idle and the system stays asleep.
> 
> Add the spurious_8042 quirk for it. The GZ302EAC reports sys_vendor
> "ASUS" while the GZ302EA reports "ASUSTeK COMPUTER INC.", so match on
> "ASUS" and on the "GZ302EA" board name to cover both models.
> 
> Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>

Good analysis of this issue.  It sounds like the right direction for 
this problem.

Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>

> ---
>   drivers/platform/x86/amd/pmc/pmc-quirks.c | 8 ++++++++
>   1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/platform/x86/amd/pmc/pmc-quirks.c b/drivers/platform/x86/amd/pmc/pmc-quirks.c
> index 09a30f333759..ff5c90510c0c 100644
> --- a/drivers/platform/x86/amd/pmc/pmc-quirks.c
> +++ b/drivers/platform/x86/amd/pmc/pmc-quirks.c
> @@ -143,6 +143,14 @@ static const struct dmi_system_id fwbug_list[] = {
>   			DMI_MATCH(DMI_BOARD_NAME, "RC73YA"),
>   		}
>   	},
> +	{
> +		.ident = "ASUS ROG Flow Z13 GZ302EA",
> +		.driver_data = &quirk_spurious_8042,
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "ASUS"),
> +			DMI_MATCH(DMI_BOARD_NAME, "GZ302EA"),
> +		}
> +	},
>   	/* https://bugzilla.kernel.org/show_bug.cgi?id=218024 */
>   	{
>   		.ident = "V14 G4 AMN",