2023-02-15 14:40:06

by Werner Sembach

Subject: [PATCH v4] gpiolib: acpi: Add a ignore wakeup quirk for Clevo NH5xAx

commit 1796f808e4bb ("HID: i2c-hid: acpi: Stop setting wakeup_capable")
changed the policy such that I2C touchpads may be able to wake up the
system by default if the system is configured as such.

However for some devices there is a bug, that is causing the touchpad to
instantly wake up the device again once it gets deactivated. The root cause
is still under investigation:
https://lore.kernel.org/linux-acpi/[email protected]/T/#mb2e738787f6b6208d17b92aa6e72d4de846d4e4d

To workaround this problem for the time being, introduce a quirk for this
model that will prevent the wakeup capability for being set for GPIO 16.

Signed-off-by: Werner Sembach <[email protected]>
Cc: <[email protected]> # v6.1+
---
drivers/gpio/gpiolib-acpi.c | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index e2ab4d5253bea..82e8e43582eba 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -1612,6 +1612,18 @@ static const struct dmi_system_id gpiolib_acpi_quirks[] __initconst = {
.ignore_wake = "ELAN0415:00@9",
},
},
+ {
+ /*
+ * Spurious wakeups from TP_ATTN# pin
+ * Found in BIOS 1.7.7
+ */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "NH5xAx"),
+ },
+ .driver_data = &(struct acpi_gpiolib_dmi_quirk) {
+ .ignore_wake = "SYNA1202:00@16",
+ },
+ },
{} /* Terminating entry */
};

--
2.34.1

2023-02-15 15:01:29

by Andy Shevchenko

Subject: Re: [PATCH v4] gpiolib: acpi: Add a ignore wakeup quirk for Clevo NH5xAx

On Wed, Feb 15, 2023 at 03:39:41PM +0100, Werner Sembach wrote:
> commit 1796f808e4bb ("HID: i2c-hid: acpi: Stop setting wakeup_capable")
> changed the policy such that I2C touchpads may be able to wake up the
> system by default if the system is configured as such.
>
> However for some devices there is a bug, that is causing the touchpad to
> instantly wake up the device again once it gets deactivated. The root cause
> is still under investigation:
> https://lore.kernel.org/linux-acpi/[email protected]/T/#mb2e738787f6b6208d17b92aa6e72d4de846d4e4d
>
> To workaround this problem for the time being, introduce a quirk for this
> model that will prevent the wakeup capability for being set for GPIO 16.

I massaged a bit the commit message and pushed for fixes, thanks!

--
With Best Regards,
Andy Shevchenko