On 10/19/2023 6:28 AM, Stephen Boyd wrote:
Quoting Krishna Kurapati (2023-10-17 06:19:44)
When runtime suspend happens in host mode, if cable is removed at this
instant, it triggers a resume where a xhci register access is done when
gdsc is not on leading to a crash. Keep usb30 prim gdsc as on during
runtime suspend to avoid this crash.
Signed-off-by: Krishna Kurapati <quic_kriskura@xxxxxxxxxxx>
---
Note: I am not sure if this is the right way or setting GDSC flags to
PWRSTS_RET_ON is the right approach. So for now made this change to
Does using PWRSTS_RET_ON work? Does the GDSC support being turned off or
is the lowest power state retention?
I didn't see any issue when I put it as PWRSTS_RET_ON. If the GDSC is
off, when we remove cable in host mode, we see a crash because of xhci
register access. But when I try putting PWRSTS_RET_ON /
CLK_RPM_ALWAYS_ON it doesn't crash.
Regard,
Krishna,
