Hi Kevin,
On 15.02.2016 18:13, Kevin Smith wrote:
On 02/12/2016 06:46 AM, Stefan Roese wrote:
This patch adds a DM GPIO driver for the Marvell MVEBU SoCs. There are other non-DM drivers that might be used on these platforms. But this patch creates a new DM driver. Which will be used by all Armada XP/38x boards. Other MVEBU SoC (Kirkwood / Orion) may follow once they support DM as well.
Are there any GPIO functions on the db-88f6820-gp board that I can use to test this patch? I'm not seeing any "xxxx-gpios = <&gpioX ...>" nodes in the current device tree.
Correct. But there are the GPIO controller DT nodes. That will instantiate the GPIO DM interface. So you could use:
=> dm tree
to see the GPIO controllers listed (if enabled). And if you enable the GPIO commands (CONFIG_CMD_GPIO) then you can e.g. do:
=> gpio status -a
to list all GPIOs and there status. If a board / driver claims a GPIO (request_gpio) this should also be visible via this interface.
Thanks, Stefan