Commit a102f07e authored by Alexander Stein's avatar Alexander Stein Committed by Greg Kroah-Hartman
Browse files

usb: dwc3: drd: Add support for usb-conn-gpio based usb-role-switch 



usb-conn-gpio devices are a subnode of the USB interface controller, which
needs to be populated.
This allows having a non-type-c connector providing dual-role.

Signed-off-by: default avatarAlexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20220105071407.2240302-1-alexander.stein@ew.tq-group.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7bd42fb9

drivers/usb/dwc3/drd.c

+13 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 


#include <linux/extcon.h>

#include <linux/of_graph.h>

#include <linux/of_platform.h>

#include <linux/platform_device.h>

#include <linux/property.h>
@@ -559,6 +560,18 @@ static int dwc3_setup_role_switch(struct dwc3 *dwc) 
	if (IS_ERR(dwc->role_sw))

		return PTR_ERR(dwc->role_sw);



	if (IS_ENABLED(CONFIG_OF)) {

		/* populate connector entry */

		int ret = devm_of_platform_populate(dwc->dev);



		if (ret) {

			usb_role_switch_unregister(dwc->role_sw);

			dwc->role_sw = NULL;

			dev_err(dwc->dev, "DWC3 platform devices creation failed: %i\n", ret);

			return ret;

		}

	}



	dwc3_set_mode(dwc, mode);

	return 0;

}