usb: dwc2: Prevent core suspend when port connection flag is 0

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commit 93f672804b upstream.

In host mode port connection status flag is "0" when loading
the driver. After loading the driver system asserts suspend
which is handled by "_dwc2_hcd_suspend()" function. Before
the system suspend the port connection status is "0". As
result need to check the "port_connect_status" if it is "0",
then skipping entering to suspend.

Cc: <stable@vger.kernel.org> # 5.2
Fixes: 6f6d70597c ("usb: dwc2: bus suspend/resume for hosts with DWC2_POWER_DOWN_PARAM_NONE")
Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Link: https://lore.kernel.org/r/20210326102510.BDEDEA005D@mailhost.synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Artur Petrosyan 2021-03-26 14:25:09 +04:00 • committed by Greg Kroah-Hartman

parent 4e28aca967

commit 137dfed155

1 changed files with 2 additions and 1 deletions

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drivers/usb/dwc2/hcd.c

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