On Mon, Jan 22, 2018 at 12:09 AM, David Lechner [off-list ref] wrote:

This adds support for the pinmux gpio ranges feature to the DaVinci gpio
driver. Only device tree is supported since the non-DT boards don't
use a generic pinmux controller.

Cc: Keerthy <j-keerthy@ti.com>
Cc: Linus Walleij <redacted>
Signed-off-by: David Lechner <david@lechnology.com>

Nice, patch applied!

+       if (of_property_read_bool(dev->of_node, "gpio-ranges")) {
+               chips->chip.request = gpiochip_generic_request;
+               chips->chip.free = gpiochip_generic_free;
+       }

If the backing pin controller can do things like debounce
or open drain pin control, consider using also the
gpiochip_generic_config() callback in the future.

Yours,
Linus Walleij