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authorYan-Hsuan Chuang <[email protected]>2020-06-05 15:47:03 +0800
committerKalle Valo <[email protected]>2020-07-15 12:10:34 +0300
commit68aa716b7dd36f55e080da9e27bc594346334c41 (patch)
tree0783bd1cbea520cfbdb50609e3cb6ccbc854f327 /tools/perf/scripts/python
parentf745eb9ca5bf823bc5c0f82a434cefb41c57844e (diff)
rtw88: pci: disable aspm for platform inter-op with module parameter
Some platforms cannot read the DBI register successfully for the ASPM settings. After the read failed, the bus could be unstable, and the device just became unavailable [1]. For those platforms, the ASPM should be disabled. But as the ASPM can help the driver to save the power consumption in power save mode, the ASPM is still needed. So, add a module parameter for them to disable it, then the device can still work, while others can benefit from the less power consumption that brings by ASPM enabled. [1] https://bugzilla.kernel.org/show_bug.cgi?id=206411 [2] Note that my lenovo T430 is the same. Fixes: 3dff7c6e3749 ("rtw88: allows to enable/disable HCI link PS mechanism") Signed-off-by: Yan-Hsuan Chuang <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Link: https://lore.kernel.org/r/[email protected]
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