This is a note to let you know that I've just added the patch titled
Input: soc_button_array - add invalid acpi_index DMI quirk handling
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
input-soc_button_array-add-invalid-acpi_index-dmi-qu.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 54fcb36a18124ca5981ce2c7228b504f8a6732a1
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Thu May 11 11:57:04 2023 -0700
Input: soc_button_array - add invalid acpi_index DMI quirk handling
[ Upstream commit 20a99a291d564a559cc2fd013b4824a3bb3f1db7 ]
Some devices have a wrong entry in their button array which points to
a GPIO which is required in another driver, so soc_button_array must
not claim it.
A specific example of this is the Lenovo Yoga Book X90F / X90L,
where the PNP0C40 home button entry points to a GPIO which is not
a home button and which is required by the lenovo-yogabook driver.
Add a DMI quirk table which can specify an ACPI GPIO resource index which
should be skipped; and add an entry for the Lenovo Yoga Book X90F / X90L
to this new DMI quirk table.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230414072116.4497-1-hdegoede@xxxxxxxxxx
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/input/misc/soc_button_array.c b/drivers/input/misc/soc_button_array.c
index 31c02c2019c1c..67a134c8448d2 100644
--- a/drivers/input/misc/soc_button_array.c
+++ b/drivers/input/misc/soc_button_array.c
@@ -108,6 +108,27 @@ static const struct dmi_system_id dmi_use_low_level_irq[] = {
{} /* Terminating entry */
};
+/*
+ * Some devices have a wrong entry which points to a GPIO which is
+ * required in another driver, so this driver must not claim it.
+ */
+static const struct dmi_system_id dmi_invalid_acpi_index[] = {
+ {
+ /*
+ * Lenovo Yoga Book X90F / X90L, the PNP0C40 home button entry
+ * points to a GPIO which is not a home button and which is
+ * required by the lenovo-yogabook driver.
+ */
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
+ },
+ .driver_data = (void *)1l,
+ },
+ {} /* Terminating entry */
+};
+
/*
* Get the Nth GPIO number from the ACPI object.
*/
@@ -137,6 +158,8 @@ soc_button_device_create(struct platform_device *pdev,
struct platform_device *pd;
struct gpio_keys_button *gpio_keys;
struct gpio_keys_platform_data *gpio_keys_pdata;
+ const struct dmi_system_id *dmi_id;
+ int invalid_acpi_index = -1;
int error, gpio, irq;
int n_buttons = 0;
@@ -154,10 +177,17 @@ soc_button_device_create(struct platform_device *pdev,
gpio_keys = (void *)(gpio_keys_pdata + 1);
n_buttons = 0;
+ dmi_id = dmi_first_match(dmi_invalid_acpi_index);
+ if (dmi_id)
+ invalid_acpi_index = (long)dmi_id->driver_data;
+
for (info = button_info; info->name; info++) {
if (info->autorepeat != autorepeat)
continue;
+ if (info->acpi_index == invalid_acpi_index)
+ continue;
+
error = soc_button_lookup_gpio(&pdev->dev, info->acpi_index, &gpio, &irq);
if (error || irq < 0) {
/*
