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path: root/drivers/usb/dwc2/gadget.c
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Diffstat (limited to 'drivers/usb/dwc2/gadget.c')
-rw-r--r--drivers/usb/dwc2/gadget.c54
1 files changed, 26 insertions, 28 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 0ba9c335b584..ce6071d65d51 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -1649,6 +1649,7 @@ static void s3c_hsotg_txfifo_flush(struct s3c_hsotg *hsotg, unsigned int idx)
dev_err(hsotg->dev,
"%s: timeout flushing fifo (GRSTCTL=%08x)\n",
__func__, val);
+ break;
}
udelay(1);
@@ -1901,7 +1902,7 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx,
static void s3c_hsotg_irq_enumdone(struct s3c_hsotg *hsotg)
{
u32 dsts = readl(hsotg->regs + DSTS);
- int ep0_mps = 0, ep_mps;
+ int ep0_mps = 0, ep_mps = 8;
/*
* This should signal the finish of the enumeration phase
@@ -2747,13 +2748,14 @@ static void s3c_hsotg_phy_enable(struct s3c_hsotg *hsotg)
dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev);
- if (hsotg->phy) {
- phy_init(hsotg->phy);
- phy_power_on(hsotg->phy);
- } else if (hsotg->uphy)
+ if (hsotg->uphy)
usb_phy_init(hsotg->uphy);
- else if (hsotg->plat->phy_init)
+ else if (hsotg->plat && hsotg->plat->phy_init)
hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);
+ else {
+ phy_init(hsotg->phy);
+ phy_power_on(hsotg->phy);
+ }
}
/**
@@ -2767,13 +2769,14 @@ static void s3c_hsotg_phy_disable(struct s3c_hsotg *hsotg)
{
struct platform_device *pdev = to_platform_device(hsotg->dev);
- if (hsotg->phy) {
- phy_power_off(hsotg->phy);
- phy_exit(hsotg->phy);
- } else if (hsotg->uphy)
+ if (hsotg->uphy)
usb_phy_shutdown(hsotg->uphy);
- else if (hsotg->plat->phy_exit)
+ else if (hsotg->plat && hsotg->plat->phy_exit)
hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type);
+ else {
+ phy_power_off(hsotg->phy);
+ phy_exit(hsotg->phy);
+ }
}
/**
@@ -2892,13 +2895,11 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget,
return -ENODEV;
/* all endpoints should be shutdown */
- for (ep = 0; ep < hsotg->num_of_eps; ep++)
+ for (ep = 1; ep < hsotg->num_of_eps; ep++)
s3c_hsotg_ep_disable(&hsotg->eps[ep].ep);
spin_lock_irqsave(&hsotg->lock, flags);
- s3c_hsotg_phy_disable(hsotg);
-
if (!driver)
hsotg->driver = NULL;
@@ -2941,7 +2942,6 @@ static int s3c_hsotg_pullup(struct usb_gadget *gadget, int is_on)
s3c_hsotg_phy_enable(hsotg);
s3c_hsotg_core_init(hsotg);
} else {
- s3c_hsotg_disconnect(hsotg);
s3c_hsotg_phy_disable(hsotg);
}
@@ -3441,13 +3441,6 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
hsotg->irq = ret;
- ret = devm_request_irq(&pdev->dev, hsotg->irq, s3c_hsotg_irq, 0,
- dev_name(dev), hsotg);
- if (ret < 0) {
- dev_err(dev, "cannot claim IRQ\n");
- goto err_clk;
- }
-
dev_info(dev, "regs %p, irq %d\n", hsotg->regs, hsotg->irq);
hsotg->gadget.max_speed = USB_SPEED_HIGH;
@@ -3488,9 +3481,6 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
if (hsotg->phy && (phy_get_bus_width(phy) == 8))
hsotg->phyif = GUSBCFG_PHYIF8;
- if (hsotg->phy)
- phy_init(hsotg->phy);
-
/* usb phy enable */
s3c_hsotg_phy_enable(hsotg);
@@ -3498,6 +3488,17 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
s3c_hsotg_init(hsotg);
s3c_hsotg_hw_cfg(hsotg);
+ ret = devm_request_irq(&pdev->dev, hsotg->irq, s3c_hsotg_irq, 0,
+ dev_name(dev), hsotg);
+ if (ret < 0) {
+ s3c_hsotg_phy_disable(hsotg);
+ clk_disable_unprepare(hsotg->clk);
+ regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies),
+ hsotg->supplies);
+ dev_err(dev, "cannot claim IRQ\n");
+ goto err_clk;
+ }
+
/* hsotg->num_of_eps holds number of EPs other than ep0 */
if (hsotg->num_of_eps == 0) {
@@ -3582,9 +3583,6 @@ static int s3c_hsotg_remove(struct platform_device *pdev)
usb_gadget_unregister_driver(hsotg->driver);
}
- s3c_hsotg_phy_disable(hsotg);
- if (hsotg->phy)
- phy_exit(hsotg->phy);
clk_disable_unprepare(hsotg->clk);
return 0;