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UPSTREAM: usb: dwc2: gadget: Prevent handling of host interrupts

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In host slave mode, the core asserts the rxready, txfifoempty interrupts
that get serviced in the gadget irq handler. Prevent servicing of these
when not in the gadget mode of operation.

Change-Id: I821c48399f876de045649507435bf2a3e9cf4cc5
Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Huang, Tao <huangtao@rock-chips.com>
(cherry picked from commit ee3de8d750)
This commit is contained in:
Vardan Mikayelyan
2016-04-27 20:20:48 -07:00
committed by Huang, Tao
parent 4e026285ea
commit 83ecfee1ac
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/dwc2/gadget.c
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@@ -2425,6 +2425,9 @@ static irqreturn_t dwc2_hsotg_irq(int irq, void *pw)
u32 gintsts;
u32 gintmsk;
if (!dwc2_is_device_mode(hsotg))
return IRQ_NONE;
spin_lock(&hsotg->lock);
irq_retry:
gintsts = dwc2_readl(hsotg->regs + GINTSTS);