usb: dwc3: make maximum-speed a per-instance attribute
in order to allow different instances of the
core work in different maximum speeds, we will
move the maximum_speed module_parameter to
both DeviceTree (making use the new maximum-speed
DT property) and platform_data.
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 033419b..4ca5706 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1525,10 +1525,25 @@
* STAR#9000525659: Clock Domain Crossing on DCTL in
* USB 2.0 Mode
*/
- if (dwc->revision < DWC3_REVISION_220A)
+ if (dwc->revision < DWC3_REVISION_220A) {
reg |= DWC3_DCFG_SUPERSPEED;
- else
- reg |= dwc->maximum_speed;
+ } else {
+ switch (dwc->maximum_speed) {
+ case USB_SPEED_LOW:
+ reg |= DWC3_DSTS_LOWSPEED;
+ break;
+ case USB_SPEED_FULL:
+ reg |= DWC3_DSTS_FULLSPEED1;
+ break;
+ case USB_SPEED_HIGH:
+ reg |= DWC3_DSTS_HIGHSPEED;
+ break;
+ case USB_SPEED_SUPER: /* FALLTHROUGH */
+ case USB_SPEED_UNKNOWN: /* FALTHROUGH */
+ default:
+ reg |= DWC3_DSTS_SUPERSPEED;
+ }
+ }
dwc3_writel(dwc->regs, DWC3_DCFG, reg);
dwc->start_config_issued = false;