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Commit 241729ba authored by John Youn's avatar John Youn Committed by Felipe Balbi
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usb: dwc2: gadget: Replace dwc2_hsotg_corereset() 



The dwc2_core_reset() function exists in the core so use that one
instead.

Signed-off-by: default avatarJohn Youn <johnyoun@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 43e90349

drivers/usb/dwc2/gadget.c

+1 −49
Original line number Diff line number Diff line
@@ -2243,54 +2243,6 @@ static void dwc2_hsotg_irq_fifoempty(struct dwc2_hsotg *hsotg, bool periodic) 
			GINTSTS_PTXFEMP |  \

			GINTSTS_RXFLVL)



/**

 * dwc2_hsotg_corereset - issue softreset to the core

 * @hsotg: The device state

 *

 * Issue a soft reset to the core, and await the core finishing it.

 */

static int dwc2_hsotg_corereset(struct dwc2_hsotg *hsotg)

{

	int timeout;

	u32 grstctl;



	dev_dbg(hsotg->dev, "resetting core\n");



	/* issue soft reset */

	dwc2_writel(GRSTCTL_CSFTRST, hsotg->regs + GRSTCTL);



	timeout = 10000;

	do {

		grstctl = dwc2_readl(hsotg->regs + GRSTCTL);

	} while ((grstctl & GRSTCTL_CSFTRST) && timeout-- > 0);



	if (grstctl & GRSTCTL_CSFTRST) {

		dev_err(hsotg->dev, "Failed to get CSftRst asserted\n");

		return -EINVAL;

	}



	timeout = 10000;



	while (1) {

		u32 grstctl = dwc2_readl(hsotg->regs + GRSTCTL);



		if (timeout-- < 0) {

			dev_info(hsotg->dev,

				 "%s: reset failed, GRSTCTL=%08x\n",

				 __func__, grstctl);

			return -ETIMEDOUT;

		}



		if (!(grstctl & GRSTCTL_AHBIDLE))

			continue;



		break;		/* reset done */

	}



	dev_dbg(hsotg->dev, "reset successful\n");

	return 0;

}



/**

 * dwc2_hsotg_core_init - issue softreset to the core

 * @hsotg: The device state
@@ -2307,7 +2259,7 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, 
	kill_all_requests(hsotg, hsotg->eps_out[0], -ECONNRESET);



	if (!is_usb_reset)

		if (dwc2_hsotg_corereset(hsotg))

		if (dwc2_core_reset(hsotg))

			return;



	/*