From: Thierry Reding <thierry.reding@gmail.com>
To: JC Kuo <jckuo@nvidia.com>
Cc: gregkh@linuxfoundation.org, robh@kernel.org,
jonathanh@nvidia.com, kishon@ti.com, linux-tegra@vger.kernel.org,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, nkristam@nvidia.com
Subject: Re: [PATCH v6 3/5] dt-bindings: phy: tegra: Add Tegra194 support
Date: Mon, 17 Feb 2020 09:29:41 +0100 [thread overview]
Message-ID: <20200217082941.GB1339021@ulmo> (raw)
In-Reply-To: <20200212061133.11665-4-jckuo@nvidia.com>
[-- Attachment #1: Type: text/plain, Size: 1266 bytes --]
On Wed, Feb 12, 2020 at 02:11:31PM +0800, JC Kuo wrote:
> Extend the bindings to cover the set of features found in Tegra194.
> Note that, technically, there are four more supplies connected to the
> XUSB pad controller (DVDD_PEX, DVDD_PEX_PLL, HVDD_PEX and HVDD_PEX_PLL)
> , but the power sequencing requirements of Tegra194 require these to be
> under the control of the PMIC.
>
> Tegra194 XUSB PADCTL supports up to USB 3.1 Gen 2 speed, however, it
> is possible for some platforms have long signal trace that could not
> provide sufficient electrical environment for Gen 2 speed. This patch
> adds a "maximum-speed" property to usb3 ports which can be used to
> specify the maximum supported speed for any particular USB 3.1 port.
> For a port that is not capable of SuperSpeedPlus, "maximum-speed"
> property should carry "super-speed".
>
> Signed-off-by: JC Kuo <jckuo@nvidia.com>
> ---
> Changes in v6: none
> Changes in v5:
> - re-use "maximum-speed" instead of adding "nvidia,disable-gen2"
> Changes in v4: none
> Changes in v3: none
> Changes in v2:
> - fix a typo
>
> .../phy/nvidia,tegra124-xusb-padctl.txt | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
Acked-by: Thierry Reding <treding@nvidia.com>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
next prev parent reply other threads:[~2020-02-17 8:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-12 6:11 [PATCH v6 0/5] add Tegra194 XUSB host and pad controller support JC Kuo
2020-02-12 6:11 ` [PATCH v6 1/5] phy: tegra: xusb: Protect Tegra186 soc with config JC Kuo
2020-02-12 6:11 ` [PATCH v6 2/5] phy: tegra: xusb: Add Tegra194 support JC Kuo
2020-02-17 8:28 ` Thierry Reding
2020-02-12 6:11 ` [PATCH v6 3/5] dt-bindings: phy: tegra: " JC Kuo
2020-02-17 8:29 ` Thierry Reding [this message]
2020-02-18 20:47 ` Rob Herring
2020-02-12 6:11 ` [PATCH v6 4/5] arm64: tegra: Add XUSB and pad controller on Tegra194 JC Kuo
2020-02-17 8:31 ` Thierry Reding
2020-02-12 6:11 ` [PATCH v6 5/5] arm64: tegra: Enable XUSB host in P2972-0000 board JC Kuo
2020-02-17 8:33 ` Thierry Reding
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200217082941.GB1339021@ulmo \
--to=thierry.reding@gmail.com \
--cc=devicetree@vger.kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=jckuo@nvidia.com \
--cc=jonathanh@nvidia.com \
--cc=kishon@ti.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=nkristam@nvidia.com \
--cc=robh@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).