diff options
Diffstat (limited to 'drivers/gpio/gpiolib-acpi.c')
| -rw-r--r-- | drivers/gpio/gpiolib-acpi.c | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index fbda452fb4d6..17a86bdd9609 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -437,6 +437,11 @@ static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares, if (!handler) return AE_OK; + if (acpi_gpio_in_ignore_list(ignore_interrupt, dev_name(chip->parent), pin)) { + dev_info(chip->parent, "Ignoring interrupt on pin %u\n", pin); + return AE_OK; + } + desc = acpi_request_own_gpiod(chip, agpio, 0, "ACPI:Event"); if (IS_ERR(desc)) { dev_err(chip->parent, @@ -461,11 +466,6 @@ static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares, goto fail_unlock_irq; } - if (acpi_gpio_in_ignore_list(ignore_interrupt, dev_name(chip->parent), pin)) { - dev_info(chip->parent, "Ignoring interrupt on pin %u\n", pin); - return AE_OK; - } - event = kzalloc(sizeof(*event), GFP_KERNEL); if (!event) goto fail_unlock_irq; @@ -1654,6 +1654,26 @@ static const struct dmi_system_id gpiolib_acpi_quirks[] __initconst = { .ignore_wake = "SYNA1202:00@16", }, }, + { + /* + * On the Peaq C1010 2-in-1 INT33FC:00 pin 3 is connected to + * a "dolby" button. At the ACPI level an _AEI event-handler + * is connected which sets an ACPI variable to 1 on both + * edges. This variable can be polled + cleared to 0 using + * WMI. But since the variable is set on both edges the WMI + * interface is pretty useless even when polling. + * So instead the x86-android-tablets code instantiates + * a gpio-keys platform device for it. + * Ignore the _AEI handler for the pin, so that it is not busy. + */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "PEAQ"), + DMI_MATCH(DMI_PRODUCT_NAME, "PEAQ PMM C1010 MD99187"), + }, + .driver_data = &(struct acpi_gpiolib_dmi_quirk) { + .ignore_interrupt = "INT33FC:00@3", + }, + }, {} /* Terminating entry */ }; |