Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1714798

Re: [PATCH v5 1/1] usb:host:xhci support option to disable the xHCI USB2 HW LPM

From Mathias Nyman <mathias.nyman@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH v5 1/1] usb:host:xhci support option to disable the xHCI USB2 HW LPM
Date 2017-08-18 13:10 +0200
Message-ID <ufNk6-2O5-35@gated-at.bofh.it> (permalink)
References <uc4jv-2Eo-5@gated-at.bofh.it> <ufjvH-7pg-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On 17.08.2017 06:19, Thang Q. Nguyen wrote:
> On Tue, Aug 8, 2017 at 11:27 AM, Thang Q. Nguyen <tqnguyen@apm.com> wrote:
>> 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 <tunguyen@apm.com>
>> Signed-off-by: Thang Q. Nguyen <tqnguyen@apm.com>
>> Acked-by: Rob Herring <robh@kernel.org>
>> ---
...
>>
>
> Do you have any comments about this patch? Thanks.
> --

Looks good,
will send forward after 4.14-rc1

Thanks
Mathias

Back to linux.kernel | Previous | NextPrevious in thread | Find similar | Unroll thread


Thread

Re: [PATCH v5 1/1] usb:host:xhci support option to disable the xHCI  USB2 HW LPM "Thang Q. Nguyen" <tqnguyen@apm.com> - 2017-08-17 05:20 +0200
  Re: [PATCH v5 1/1] usb:host:xhci support option to disable the xHCI  USB2 HW LPM Mathias Nyman <mathias.nyman@linux.intel.com> - 2017-08-18 13:10 +0200

csiph-web