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usb: dwc3: core: stop the core when it's removed

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If u-boot doesn't stop the core when it's finished with it then
linux can't find it.

Signed-off-by: Angus Ainslie <angus@akkea.ca>
This commit is contained in:
Angus Ainslie
2022-02-02 15:08:55 -08:00
committed by Marek Vasut
parent c08db05455
commit fb146fbc1a
1 changed files with 9 additions and 0 deletions
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9
drivers/usb/dwc3/core.c
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@@ -706,6 +706,14 @@ static void dwc3_gadget_run(struct dwc3 *dwc)
mdelay(100);
}
static void dwc3_core_stop(struct dwc3 *dwc)
{
u32 reg;
reg = dwc3_readl(dwc->regs, DWC3_DCTL);
dwc3_writel(dwc->regs, DWC3_DCTL, reg & ~(DWC3_DCTL_RUN_STOP));
}
static void dwc3_core_exit_mode(struct dwc3 *dwc)
{
switch (dwc->dr_mode) {
@@ -1128,6 +1136,7 @@ void dwc3_remove(struct dwc3 *dwc)
dwc3_core_exit_mode(dwc);
dwc3_event_buffers_cleanup(dwc);
dwc3_free_event_buffers(dwc);
dwc3_core_stop(dwc);
dwc3_core_exit(dwc);
kfree(dwc->mem);
}