Linux GPIO subsystem development
 help / color / mirror / Atom feed
From: Werner Sembach <wse@tuxedocomputers.com>
To: mika.westerberg@linux.intel.com,
	andriy.shevchenko@linux.intel.com, linus.walleij@linaro.org,
	brgl@bgdev.pl, linux-gpio@vger.kernel.org,
	linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
	mario.limonciello@amd.com, alexander.deucher@amd.com
Subject: [PATCH v4] gpiolib: acpi: Add a ignore wakeup quirk for Clevo NH5xAx
Date: Wed, 15 Feb 2023 15:39:41 +0100	[thread overview]
Message-ID: <20230215143941.13247-1-wse@tuxedocomputers.com> (raw)

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/2d983050-f844-6c5e-8ae9-9f87ac68dfdd@tuxedocomputers.com/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 <wse@tuxedocomputers.com>
Cc: <stable@vger.kernel.org> # 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


             reply	other threads:[~2023-02-15 14:40 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-15 14:39 Werner Sembach [this message]
2023-02-15 15:00 ` [PATCH v4] gpiolib: acpi: Add a ignore wakeup quirk for Clevo NH5xAx Andy Shevchenko

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20230215143941.13247-1-wse@tuxedocomputers.com \
    --to=wse@tuxedocomputers.com \
    --cc=alexander.deucher@amd.com \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=brgl@bgdev.pl \
    --cc=linus.walleij@linaro.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-gpio@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mario.limonciello@amd.com \
    --cc=mika.westerberg@linux.intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox