Messages in this thread | | | Date | Tue, 28 Oct 2014 08:57:46 -0700 | From | Darren Hart <> | Subject | Re: [PATCH] ACPI / GPIO: Pass index to acpi_get_gpiod_by_index() when using properties |
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On 10/28/14 4:15, Mika Westerberg wrote: > acpi_dev_add_driver_gpios() makes it possible to set up mapping between > properties and ACPI GpioIo resources in a driver, so we can take index > parameter in acpi_find_gpio() into use with _DSD device properties now. > > This index can be used to select a GPIO from a property with multiple > GPIOs: > > Package () { > "data-gpios", > Package () { > \_SB.GPIO, 0, 0, 0, > \_SB.GPIO, 1, 0, 0, > \_SB.GPIO, 2, 0, 1, > } > } > > In order to retrieve the last GPIO from a driver we can simply do: > > desc = devm_gpiod_get_index(dev, "data", 2); > > and so on. > > Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Nice, that was a gap that had been gnawing at me. Thanks Mika :-)
Acked-by: Darren Hart <dvhart@linux.intel.com>
-- Darren Hart Intel Open Source Technology Center
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