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Merge "usb: dwc3: debugfs: Add LPM check for ep_info_register"

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qctecmdr 2020-06-07 19:33:15 -07:00 • committed by Gerrit - the friendly Code Review server
commit cb9b03954c
1 changed files with 5 additions and 0 deletions
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5
drivers/usb/dwc3/debugfs.c
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@ -921,6 +921,11 @@ static int dwc3_ep_info_register_show(struct seq_file *s, void *unused)
u32 upper_32_bits;
u32 reg;
if (atomic_read(&dwc->in_lpm)) {
seq_puts(s, "USB device is powered off\n");
return 0;
}
spin_lock_irqsave(&dwc->lock, flags);
reg = DWC3_GDBGLSPMUX_EPSELECT(dep->number);
dwc3_writel(dwc->regs, DWC3_GDBGLSPMUX, reg);