linux-input.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Mario Limonciello <superm1@kernel.org>
To: Hans de Goede <hansg@kernel.org>,
	Mika Westerberg <westeri@kernel.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <brgl@bgdev.pl>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-gpio@vger.kernel.org (open list:GPIO ACPI SUPPORT),
	linux-acpi@vger.kernel.org (open list:GPIO ACPI SUPPORT),
	linux-kernel@vger.kernel.org (open list),
	linux-input@vger.kernel.org (open list:INPUT (KEYBOARD, MOUSE,
	JOYSTICK, TOUCHSCREEN)...),
	Mario Limonciello <mario.limonciello@amd.com>
Subject: [PATCH v2 2/3] gpiolib: acpi: Program debounce when finding GPIO
Date: Wed, 25 Jun 2025 13:13:41 -0500	[thread overview]
Message-ID: <20250625181342.3175969-3-superm1@kernel.org> (raw)
In-Reply-To: <20250625181342.3175969-1-superm1@kernel.org>

From: Mario Limonciello <mario.limonciello@amd.com>

When soc-button-array looks up the GPIO to use it calls acpi_find_gpio()
which will parse _CRS.

acpi_find_gpio.cold (drivers/gpio/gpiolib-acpi-core.c:953)
gpiod_find_and_request (drivers/gpio/gpiolib.c:4598 drivers/gpio/gpiolib.c:4625)
gpiod_get_index (drivers/gpio/gpiolib.c:4877)

The GPIO is setup basically, but the debounce information is discarded.
The platform will assert what debounce should be in _CRS, so program it
at the time it's available.

Cc: Hans de Goede <hansg@kernel.org>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
v2:
 * Make non fatal by using helper from patch 1 (Andy)
---
 drivers/gpio/gpiolib-acpi-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpiolib-acpi-core.c b/drivers/gpio/gpiolib-acpi-core.c
index 1895e45bd9f16..15222bfc25bb2 100644
--- a/drivers/gpio/gpiolib-acpi-core.c
+++ b/drivers/gpio/gpiolib-acpi-core.c
@@ -962,6 +962,7 @@ struct gpio_desc *acpi_find_gpio(struct fwnode_handle *fwnode,
 
 	acpi_gpio_update_gpiod_flags(dflags, &info);
 	acpi_gpio_update_gpiod_lookup_flags(lookupflags, &info);
+	acpi_set_debounce_timeout(desc, info.debounce);
 	return desc;
 }
 
-- 
2.43.0


  parent reply	other threads:[~2025-06-25 18:13 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-25 18:13 [PATCH v2 0/3] Fix soc-button-array debounce Mario Limonciello
2025-06-25 18:13 ` [PATCH v2 1/3] gpiolib: acpi: Add a helper for programming debounce Mario Limonciello
2025-06-25 18:58   ` Hans de Goede
2025-06-25 18:13 ` Mario Limonciello [this message]
2025-06-25 18:58   ` [PATCH v2 2/3] gpiolib: acpi: Program debounce when finding GPIO Hans de Goede
2025-06-25 18:13 ` [PATCH v2 3/3] Input: soc_button_array: Only debounce cherryview and baytrail systems Mario Limonciello
2025-06-25 19:03   ` Hans de Goede
2025-06-25 19:23     ` Mario Limonciello
2025-06-25 19:42       ` Hans de Goede
2025-06-25 20:34         ` Mario Limonciello
2025-06-26 18:27           ` Dmitry Torokhov
2025-06-26 18:30             ` Mario Limonciello
2025-06-26 18:53               ` Dmitry Torokhov
2025-06-26 18:58                 ` Mario Limonciello
2025-06-26 19:04                 ` Hans de Goede
2025-06-26 19:32                   ` Dmitry Torokhov
2025-06-26 19:37                     ` Mario Limonciello
2025-06-26 19:54                       ` Dmitry Torokhov
2025-06-26 21:39                         ` Mario Limonciello
2025-06-27  5:08                           ` Dmitry Torokhov

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=20250625181342.3175969-3-superm1@kernel.org \
    --to=superm1@kernel.org \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=brgl@bgdev.pl \
    --cc=dmitry.torokhov@gmail.com \
    --cc=hansg@kernel.org \
    --cc=linus.walleij@linaro.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-gpio@vger.kernel.org \
    --cc=linux-input@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mario.limonciello@amd.com \
    --cc=westeri@kernel.org \
    /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;
as well as URLs for NNTP newsgroup(s).