xhci: Use pm_runtime_get to prevent RPM on unsupported systems

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commit 31004740e4 upstream.

Use pm_runtime_put in the remove function and pm_runtime_get to disable
RPM on platforms that don't support runtime D3, as re-enabling it through
sysfs auto power control may cause the controller to malfunction. This
can lead to issues such as hotplug devices not being detected due to
failed interrupt generation.

Fixes: a5d6264b63 ("xhci: Enable RPM on controllers that support low-power states")
Cc: stable <stable@kernel.org>
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20241024133718.723846-1-Basavaraj.Natikar@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Basavaraj Natikar 2024-10-24 19:07:18 +05:30 • committed by Greg Kroah-Hartman

parent 78a6caa022

commit c4f90f0971

1 changed files with 4 additions and 2 deletions

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drivers/usb/host/xhci-pci.c

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