UPSTREAM: usb: dwc2: gadget: Replace dwc2_hsotg_corereset()

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

Change-Id: I39a21bd4896221a6217d807f4a211af243686dd7
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Huang, Tao <huangtao@rock-chips.com>
(cherry picked from commit 241729baa932a69cd203dbaa81abbb8af5b77b65)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 5f63058f854ea5f5482c5fed8f5d8c0847ccb3df..628ba74d8e50af10ba75c15479db402850ab038d 100644 (file)
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -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;
 
        /*