Commits
Kai-Heng Feng committed 582ee9c5ad2
USB: Disable USB2 LPM at shutdown The QCA Rome USB Bluetooth controller has several issues once LPM gets enabled: - Fails to get enumerated in coldboot. [1] - Drains more power (~ 0.2W) when the system is in S5. [2] - Disappears after a warmboot. [2] The issue happens because the device lingers at LPM L1 in S5, so device can't get enumerated even after a reboot. Disable LPM at shutdown to solve the issue. [1] https://bugs.launchpad.net/bugs/1757218 [2] https://patchwork.kernel.org/patch/10607097/ Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20190805142412.23965-1-kai.heng.feng@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>