Merge "dwc3-msm: Add module param to override USB speed" (6611de34) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/usb/dwc3/dwc3-msm.c

+20 −0

Original line number	Diff line number	Diff line
		@@ -69,6 +69,11 @@ static int cpu_to_affin;
		module_param(cpu_to_affin, int, S_IRUGO\|S_IWUSR);
		MODULE_PARM_DESC(cpu_to_affin, "affin usb irq to this cpu");

		/* override for USB speed */
		static int override_usb_speed;
		module_param(override_usb_speed, int, 0644);
		MODULE_PARM_DESC(override_usb_speed, "override for USB speed");

		/* XHCI registers */
		#define USB3_HCSPARAMS1 (0x4)
		#define USB3_PORTSC (0x420)
		@@ -255,6 +260,15 @@ struct dwc3_msm {
		static void dwc3_pwr_event_handler(struct dwc3_msm *mdwc);
		static int dwc3_msm_gadget_vbus_draw(struct dwc3_msm *mdwc, unsigned int mA);
		static void dwc3_msm_notify_event(struct dwc3 *dwc, unsigned int event);

		static inline bool is_valid_usb_speed(struct dwc3 *dwc, int speed)
		{

		return (((speed == USB_SPEED_FULL) \|\| (speed == USB_SPEED_HIGH) \|\|
		(speed == USB_SPEED_SUPER) \|\| (speed == USB_SPEED_SUPER_PLUS))
		&& (speed <= dwc->maximum_speed));
		}

		/**
		*
		* Read register with debug info.
		@@ -2395,6 +2409,12 @@ static void dwc3_resume_work(struct work_struct *w)
		if (dwc->maximum_speed > dwc->max_hw_supp_speed)
		dwc->maximum_speed = dwc->max_hw_supp_speed;

		if (override_usb_speed &&
		is_valid_usb_speed(dwc, override_usb_speed)) {
		dwc->maximum_speed = override_usb_speed;
		dbg_event(0xFF, "override_speed", override_usb_speed);
		}

		dbg_event(0xFF, "speed", dwc->maximum_speed);

		ret = extcon_get_property(edev, extcon_id,