diff options
| author | Thang Q. Nguyen <[email protected]> | 2017-10-05 11:21:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2017-10-05 11:01:57 +0200 |
| commit | 4750bc78efdb126ddc40f1b34dbae7ce319344cb (patch) | |
| tree | e8beed27b739a1fafe3736d47b579c173f26dd2a /tools/perf/scripts/python | |
| parent | fb9bbce6e67a2c33a1902380b1c3d3d96e75af52 (diff) | |
usb: host: xhci support option to disable the xHCI USB2 HW LPM
XHCI specification 1.1 does not require xHCI-compliant controllers
to always enable hardware USB2 LPM. However, the current xHCI
driver always enable it when seeing HLC=1.
This patch supports an option for users to control disabling
USB2 Hardware LPM via DT/ACPI attribute.
This option is needed in case user would like to disable this
feature. For example, their xHCI controller has its USB2 HW LPM
broken.
Signed-off-by: Tung Nguyen <[email protected]>
Signed-off-by: Thang Q. Nguyen <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Mathias Nyman <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions