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usb: dwc2: gadget: initialize controller in pullup callback 

USB reset interrupt is no more used to reset the controller.
Thus, reset the controller in pullup callback as described by
Synopsys programming guide. Otherwise enumeration sometimes
fails when usb configuration is switched without physical
disconnection.

Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Gregory Herrero 2015-01-30 09:09:37 +01:00 committed by Felipe Balbi
parent f889f23d1c
commit b4c2378df6
1 changed files with 1 additions and 0 deletions
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drivers/usb/dwc2/gadget.c
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@ -3162,6 +3162,7 @@ static int s3c_hsotg_pullup(struct usb_gadget *gadget, int is_on)
if (is_on) {
clk_enable(hsotg->clk);
hsotg->enabled = 1;
s3c_hsotg_core_init_disconnected(hsotg, false);
s3c_hsotg_core_connect(hsotg);
} else {
s3c_hsotg_core_disconnect(hsotg);