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Revert "usb: dwc3: core: Stop processing of pending events if controller is halted"

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This reverts commit c2a8d1e8ba.
This commit is contained in:
Ksawlii 2024-11-24 00:22:55 +01:00
parent 1e8a8b3db9
commit 9156188795
3 changed files with 18 additions and 19 deletions
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22
drivers/usb/dwc3/core.c
View file

@ -459,7 +459,6 @@ static int dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned length)
int dwc3_event_buffers_setup(struct dwc3 *dwc)
{
struct dwc3_event_buffer *evt;
u32 reg;
if (!dwc->ev_buf)
return 0;
@ -472,10 +471,8 @@ int dwc3_event_buffers_setup(struct dwc3 *dwc)
upper_32_bits(evt->dma));
dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(0),
DWC3_GEVNTSIZ_SIZE(evt->length));
dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), 0);
/* Clear any stale event */
reg = dwc3_readl(dwc->regs, DWC3_GEVNTCOUNT(0));
dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), reg);
return 0;
}
@ -502,10 +499,7 @@ void dwc3_event_buffers_cleanup(struct dwc3 *dwc)
dwc3_writel(dwc->regs, DWC3_GEVNTADRHI(0), 0);
dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(0), DWC3_GEVNTSIZ_INTMASK
| DWC3_GEVNTSIZ_SIZE(0));
/* Clear any stale event */
reg = dwc3_readl(dwc->regs, DWC3_GEVNTCOUNT(0));
dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), reg);
dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(0), 0);
}
static int dwc3_alloc_scratch_buffers(struct dwc3 *dwc)
@ -2008,11 +2002,7 @@ static int dwc3_runtime_resume(struct device *dev)
switch (dwc->current_dr_role) {
case DWC3_GCTL_PRTCAP_DEVICE:
if (dwc->pending_events) {
pm_runtime_put(dwc->dev);
dwc->pending_events = false;
enable_irq(dwc->irq_gadget);
}
dwc3_gadget_process_pending_events(dwc);
break;
case DWC3_GCTL_PRTCAP_HOST:
default:
@ -2106,12 +2096,6 @@ static void dwc3_complete(struct device *dev)
static const struct dev_pm_ops dwc3_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(dwc3_suspend, dwc3_resume)
.complete = dwc3_complete,
/*
* Runtime suspend halts the controller on disconnection. It relies on
* platforms with custom connection notification to start the controller
* again.
*/
SET_RUNTIME_PM_OPS(dwc3_runtime_suspend, dwc3_runtime_resume,
dwc3_runtime_idle)
};

4
drivers/usb/dwc3/core.h
View file

@ -1621,6 +1621,7 @@ static inline void dwc3_otg_host_init(struct dwc3 *dwc)
#if !IS_ENABLED(CONFIG_USB_DWC3_HOST)
int dwc3_gadget_suspend(struct dwc3 *dwc);
int dwc3_gadget_resume(struct dwc3 *dwc);
void dwc3_gadget_process_pending_events(struct dwc3 *dwc);
#else
static inline int dwc3_gadget_suspend(struct dwc3 *dwc)
{
@ -1632,6 +1633,9 @@ static inline int dwc3_gadget_resume(struct dwc3 *dwc)
return 0;
}
static inline void dwc3_gadget_process_pending_events(struct dwc3 *dwc)
{
}
#endif /* !IS_ENABLED(CONFIG_USB_DWC3_HOST) */
#if IS_ENABLED(CONFIG_USB_DWC3_ULPI)

11
drivers/usb/dwc3/gadget.c
View file

@ -4735,3 +4735,14 @@ err1:
err0:
return ret;
}
void dwc3_gadget_process_pending_events(struct dwc3 *dwc)
{
if (dwc->pending_events) {
dwc3_interrupt(dwc->irq_gadget, dwc->ev_buf);
dwc3_thread_interrupt(dwc->irq_gadget, dwc->ev_buf);
pm_runtime_put(dwc->dev);
dwc->pending_events = false;
enable_irq(dwc->irq_gadget);
}
}