Commit 4abe4537 authored Aug 29, 2018 by Grigor Tovmasyan Committed by Felipe Balbi Oct 02, 2018

usb: dwc2: gadget: enable WKUP_ALERT interrupt



WKUP_ALERT interrupt should be unmask when lpm mode is enabled.

This interrupt is asserted when the device is in L1 for the duration
mentioned in GREFCLK.SOF_CNN_WKUP_ALERT. This is used to alert SW to
initiate Remote wake up so that the device resumes in time in order not
to lose sync with the host frame number.

Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

parent 15d9dbf8

drivers/usb/dwc2/gadget.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -5003,6 +5003,10 @@ void dwc2_gadget_init_lpm(struct dwc2_hsotg *hsotg)
		val \|= hsotg->params.besl ? GLPMCFG_ENBESL : 0;
		dwc2_writel(hsotg, val, GLPMCFG);
		dev_dbg(hsotg->dev, "GLPMCFG=0x%08x\n", dwc2_readl(hsotg, GLPMCFG));

		/* Unmask WKUP_ALERT Interrupt */
		if (hsotg->params.service_interval)
		dwc2_set_bit(hsotg, GINTMSK2, GINTMSK2_WKUP_ALERT_INT_MSK);
		}

		/**

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