From: Rob Herring <robh@kernel.org>
To: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Cc: John Youn <John.Youn@synopsys.com>,
Rob Herring <robh+dt@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Felipe Balbi <balbi@kernel.org>,
linux-usb@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH v4 06/12] usb: devicetree: Include USB SSP Gen X x Y
Date: Fri, 31 Jul 2020 14:21:43 -0600 [thread overview]
Message-ID: <20200731202143.GA715967@bogus> (raw)
In-Reply-To: <3cf8c20044d15dfa5e5113b3a532054b4f96c13f.1595727196.git.thinhn@synopsys.com>
On Sat, 25 Jul 2020 18:36:32 -0700, Thinh Nguyen wrote:
> According to the USB 3.2 spec, a super-speed-plus device can operate at
> gen2x2, gen2x1, or gen1x2. If the USB controller device supports
> multiple lanes at different transfer rates, the user can specify the HW
> capability via these new speed strings:
>
> "super-speed-plus-gen2x2"
> "super-speed-plus-gen2x1"
> "super-speed-plus-gen1x2"
>
> If the argument is simply "super-speed-plus", USB controllers should
> default to their maximum transfer rate and number of lanes.
>
> Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
> ---
> Changes in v4:
> - None
> Changes in v3:
> - Use "maximum-speed" to include both the num-lane and transfer rate for SSP
> - Remove "num-lanes" and "lane-speed-mantissa-gbps" properties
> Changes in v2:
> - Make "num-lanes" and "lane-speed-mantissa-gbps" common USB properties
>
> Documentation/devicetree/bindings/usb/generic.txt | 11 +++++++----
> 1 file changed, 7 insertions(+), 4 deletions(-)
>
Reviewed-by: Rob Herring <robh@kernel.org>
next prev parent reply other threads:[~2020-07-31 20:21 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-26 1:35 [PATCH v4 00/12] usb: Handle different sublink speeds Thinh Nguyen
2020-07-26 1:35 ` [PATCH v4 01/12] usb: ch9: Add sublink speed struct Thinh Nguyen
2020-07-26 1:36 ` [PATCH v4 02/12] usb: gadget: composite: Avoid using magic numbers Thinh Nguyen
2020-07-26 1:36 ` [PATCH v4 03/12] usb: gadget: Expose sublink speed attributes Thinh Nguyen
2020-07-26 1:36 ` [PATCH v4 04/12] usb: gadget: Set max speed for SSP devices Thinh Nguyen
2020-07-26 1:36 ` [PATCH v4 05/12] usb: composite: Properly report sublink speed Thinh Nguyen
2020-07-26 1:36 ` [PATCH v4 06/12] usb: devicetree: Include USB SSP Gen X x Y Thinh Nguyen
2020-07-31 20:21 ` Rob Herring [this message]
2020-08-01 2:36 ` Thinh Nguyen
2020-07-26 1:36 ` [PATCH v4 07/12] usb: common: Add and update common functions for SSP speeds Thinh Nguyen
2020-07-26 1:36 ` [PATCH v4 08/12] usb: dwc3: Initialize lane count and sublink speed Thinh Nguyen
2020-07-26 1:36 ` [PATCH v4 09/12] usb: dwc3: gadget: Report sublink speed capability Thinh Nguyen
2020-07-26 1:36 ` [PATCH v4 10/12] usb: dwc3: gadget: Implement setting of sublink speed Thinh Nguyen
2020-07-26 1:37 ` [PATCH v4 11/12] usb: dwc3: gadget: Track connected lane and " Thinh Nguyen
2020-07-26 1:37 ` [PATCH v4 12/12] usb: dwc3: gadget: Set speed only up to the max supported Thinh Nguyen
2020-09-05 0:53 ` [PATCH v4 00/12] usb: Handle different sublink speeds Thinh Nguyen
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