From: Rob Herring <robh@kernel.org>
To: Sandeep Maheswaram <quic_c_sanm@quicinc.com>
Cc: Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Felipe Balbi <balbi@kernel.org>,
Stephen Boyd <swboyd@chromium.org>,
Doug Anderson <dianders@chromium.org>,
Matthias Kaehlcke <mka@chromium.org>,
Mathias Nyman <mathias.nyman@intel.com>,
devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
quic_pkondeti@quicinc.com, quic_ppratap@quicinc.com
Subject: Re: [PATCH v2 1/3] dt-bindings: usb: usb-xhci: Add bindings for usb-skip-phy-init property
Date: Fri, 12 Nov 2021 16:47:31 -0600 [thread overview]
Message-ID: <YY7vAzxj9aR/zBSB@robh.at.kernel.org> (raw)
In-Reply-To: <1636353710-25582-2-git-send-email-quic_c_sanm@quicinc.com>
On Mon, Nov 08, 2021 at 12:11:48PM +0530, Sandeep Maheswaram wrote:
> Adding bindings for usb-skip-phy-init property.
> Runtime suspend of phy drivers was failing from DWC3 driver as
> runtime usage value is 2 because the phy is initialized from
> DWC3 core and HCD core.
> Some controllers like DWC3 and CDNS3 manage phy in their core drivers.
> This property can be set to avoid phy initialization in HCD core.
You already know if you have a DWC3 and CDNS3 controller, so you don't
need more data in DT.
>
> Signed-off-by: Sandeep Maheswaram <quic_c_sanm@quicinc.com>
> ---
> Documentation/devicetree/bindings/usb/usb-xhci.yaml | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.yaml b/Documentation/devicetree/bindings/usb/usb-xhci.yaml
> index 965f87f..a64d29f 100644
> --- a/Documentation/devicetree/bindings/usb/usb-xhci.yaml
> +++ b/Documentation/devicetree/bindings/usb/usb-xhci.yaml
> @@ -25,6 +25,10 @@ properties:
> description: Set if the controller has broken port disable mechanism
> type: boolean
>
> + usb-skip-phy-init:
> + description: Set if the phy initialization is managed by controller
> + type: boolean
> +
> imod-interval-ns:
> description: Interrupt moderation interval
> default: 5000
> --
> 2.7.4
>
>
next prev parent reply other threads:[~2021-11-12 22:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-08 6:41 [PATCH v2 0/3] Skip phy initialization for DWC3 USB Controllers Sandeep Maheswaram
2021-11-08 6:41 ` [PATCH v2 1/3] dt-bindings: usb: usb-xhci: Add bindings for usb-skip-phy-init property Sandeep Maheswaram
2021-11-12 22:47 ` Rob Herring [this message]
2021-11-16 10:41 ` Sandeep Maheswaram
2021-11-17 5:27 ` Pavan Kondeti
2021-11-23 11:17 ` Sandeep Maheswaram
2021-11-08 6:41 ` [PATCH v2 2/3] usb: host: xhci-plat: Add device property to set XHCI_SKIP_PHY_INIT quirk Sandeep Maheswaram
2021-11-08 6:41 ` [PATCH v2 3/3] usb: dwc3: host: Set the property usb-skip-phy-init Sandeep Maheswaram
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