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usb: dwc2: gadget: Replace dwc2_hsotg_corereset()

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

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
John Youn 2015-12-17 11:17:59 -08:00 committed by Felipe Balbi
parent 43e9034904
commit 241729baa9
1 changed files with 1 additions and 49 deletions
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50
drivers/usb/dwc2/gadget.c
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@ -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;
/*