xhci: Enable RPM on controllers that support low-power states

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commit a5d6264b63 upstream.

Use the low-power states of the underlying platform to enable runtime PM.
If the platform doesn't support runtime D3, then enabling default RPM will
result in the controller malfunctioning, as in the case of hotplug devices
not being detected because of a failed interrupt generation.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20231019102924.2797346-16-mathias.nyman@linux.intel.com
Cc: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Basavaraj Natikar 2023-10-19 13:29:20 +03:00 • committed by Greg Kroah-Hartman

parent 72a90e7eb4

commit b50ca24c3e

1 changed files with 3 additions and 1 deletions

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drivers/usb/host/xhci-pci.c

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