From: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Date: Wed, 7 Dec 2022 13:19:17 +0000 (+0100)
Subject: usb: dwc2: power on/off phy for peripheral mode in dual-role mode
X-Git-Tag: v6.2-rc1~70^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ade23d7b7ec5c38bd43ec44ccb753cb7ea8ac08a;p=thirdparty%2Fkernel%2Flinux.git

usb: dwc2: power on/off phy for peripheral mode in dual-role mode

The PHY power is handled for peripheral mode but only when the device is
forced into this peripheral mode. It is missing when the device is
operating in peripheral mode when dual-role mode is enabled, so let's
update the condition to match this scenario.

Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://lore.kernel.org/r/20221206-dwc2-gadget-dual-role-v1-2-36515e1092cd@theobroma-systems.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 8b15742d9e8aa..62fa6378d2d73 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -4549,7 +4549,8 @@ static int dwc2_hsotg_udc_start(struct usb_gadget *gadget,
 	hsotg->gadget.dev.of_node = hsotg->dev->of_node;
 	hsotg->gadget.speed = USB_SPEED_UNKNOWN;
 
-	if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) {
+	if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL ||
+	    (hsotg->dr_mode == USB_DR_MODE_OTG && dwc2_is_device_mode(hsotg))) {
 		ret = dwc2_lowlevel_hw_enable(hsotg);
 		if (ret)
 			goto err;
@@ -4611,7 +4612,8 @@ static int dwc2_hsotg_udc_stop(struct usb_gadget *gadget)
 	if (!IS_ERR_OR_NULL(hsotg->uphy))
 		otg_set_peripheral(hsotg->uphy->otg, NULL);
 
-	if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)
+	if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL ||
+	    (hsotg->dr_mode == USB_DR_MODE_OTG && dwc2_is_device_mode(hsotg)))
 		dwc2_lowlevel_hw_disable(hsotg);
 
 	return 0;
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 262c13b6362ac..23ef759968231 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -576,7 +576,8 @@ static int dwc2_driver_probe(struct platform_device *dev)
 	dwc2_debugfs_init(hsotg);
 
 	/* Gadget code manages lowlevel hw on its own */
-	if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)
+	if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL ||
+	    (hsotg->dr_mode == USB_DR_MODE_OTG && dwc2_is_device_mode(hsotg)))
 		dwc2_lowlevel_hw_disable(hsotg);
 
 #if IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) || \