OrgACRN
/
acrn-kernel
mirror of https://github.com/projectacrn/acrn-kernel.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Input: soc_button_array - add invalid acpi_index DMI quirk handling 

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@redhat.com>
Link: https://lore.kernel.org/r/20230414072116.4497-1-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Hans de Goede 2023-05-11 11:57:04 -07:00 committed by Dmitry Torokhov
parent 978134c4b1
commit 20a99a291d
1 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/input/misc/soc_button_array.c
View File

@ -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) {
/*