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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>
This commit is contained in:
Quentin Schulz 2022-12-07 14:19:17 +01:00 committed by Greg Kroah-Hartman
parent 42a317d076
commit ade23d7b7e
2 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/usb/dwc2/gadget.c
View File

@ -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;

3
drivers/usb/dwc2/platform.c
View File

@ -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) || \