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gpio: acpi: Skip _AEI entries without a handler rather then aborting the scan 

acpi_walk_resources will stop as soon as the callback passed in returns
an error status. On a x86 tablet I have the first GpioInt in the _AEI
resource list has no handler defined in the DSDT, causing
acpi_walk_resources to abort scanning the rest of the resource list,
which does define valid ACPI GPIO events.

This commit changes the return for not finding a handler from
AE_BAD_PARAMETER to AE_OK so that the rest of the resource list will
get scanned normally in case of missing event handlers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Hans de Goede 2017-06-23 09:26:13 +02:00 committed by Linus Walleij
parent ad537b8225
commit c06632ea05
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpiolib-acpi.c
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@ -201,7 +201,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
handler = acpi_gpio_irq_handler_evt;
}
if (!handler)
return AE_BAD_PARAMETER;
return AE_OK;
pin = acpi_gpiochip_pin_to_gpio_offset(chip->gpiodev, pin);
if (pin < 0)