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authorFelipe Balbi <balbi@ti.com>2013-06-30 13:29:51 +0200
committerFelipe Balbi <balbi@ti.com>2013-07-29 12:56:47 +0200
commitf7e846f0956917888b28b52726ee8779a39d84b6 (patch)
treee2571f968ea11e9ea92907943f9c6997db43d316 /drivers/usb/dwc3/gadget.c
parentusb: dwc3: let non-DT platforms pass tx-fifo-resize flag; (diff)
downloadlinux-f7e846f0956917888b28b52726ee8779a39d84b6.tar.xz
linux-f7e846f0956917888b28b52726ee8779a39d84b6.zip
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>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
-rw-r--r--drivers/usb/dwc3/gadget.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 033419be26d4..4ca5706f3a86 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1525,10 +1525,25 @@ static int dwc3_gadget_start(struct usb_gadget *g,
* 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;