Hi, Marek Szyprowski <[email protected]> writes: > On 2019-01-14 09:30, Felipe Balbi wrote: >> From: Bo He <[email protected]> >> >> We see dwc3 endpoint stopped by unwanted irq during >> suspend resume test, which is caused dwc3 ep can't be started >> with error "No Resource". >> >> Here, add synchronize_irq before suspend to sync the >> pending IRQ handlers complete. >> >> Signed-off-by: Bo He <[email protected]> >> Signed-off-by: Yu Wang <[email protected]> >> Signed-off-by: Felipe Balbi <[email protected]> > > This patch causes following kernel BUG on Samsung Exynos based platforms > during system suspend/resume cycle:
are you calling ->suspend() from ->suspend_noirq() time? Are we not allowed to call synchronize_irq() during ->suspend()? -- balbi
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