Xu Yang cc509b6a47 usb: chipidea: core: handle power lost in workqueue ... When power is recycled in usb controller during system power management, the controller will recognize it and switch role if role has been changed during power lost. In current design, it will be completed in resume() function. However, this may bring issues since usb class devices have their pm operations too and these device's resume() functions are still not being called at this point. When usb controller recognized host role should be stopped, these usb class devices will be removed at this point. But these usb class devices can't be removed in some cases, such as scsi devices. Since scsi driver may sync data to U-disk, however it will block there because scsi drvier can only handle pm request when is in suspended state. Therefore, there may exist a dependency between ci_resume() and usb class device's resume(). To break this potential dependency, we need to handle power lost work in a workqueue. Fixes: 74494b3321 ("usb: chipidea: core: add controller resume support when controller is powered off") cc: stable@vger.kernel.org Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Link: https://lore.kernel.org/r/20240119123537.3614838-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-01-27 16:39:14 -08:00
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bits.h
ci.h
ci_hdrc_imx.c
ci_hdrc_imx.h
ci_hdrc_msm.c
ci_hdrc_npcm.c
ci_hdrc_pci.c
ci_hdrc_tegra.c
ci_hdrc_usb2.c
core.c
debug.c
host.c
host.h
Kconfig
Makefile
otg.c
otg.h
otg_fsm.c
otg_fsm.h
trace.c
trace.h
udc.c
udc.h
ulpi.c
usbmisc_imx.c