From: Sandeep Maheswaram <quic_c_sanm@quicinc.com>
To: Rob Herring <robh+dt@kernel.org>, 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>
Cc: <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>,
Sandeep Maheswaram <quic_c_sanm@quicinc.com>
Subject: [PATCH v2 1/3] dt-bindings: usb: usb-xhci: Add bindings for usb-skip-phy-init property
Date: Mon, 8 Nov 2021 12:11:48 +0530 [thread overview]
Message-ID: <1636353710-25582-2-git-send-email-quic_c_sanm@quicinc.com> (raw)
In-Reply-To: <1636353710-25582-1-git-send-email-quic_c_sanm@quicinc.com>
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.
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:[~2021-11-08 6:42 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 ` Sandeep Maheswaram [this message]
2021-11-12 22:47 ` [PATCH v2 1/3] dt-bindings: usb: usb-xhci: Add bindings for usb-skip-phy-init property Rob Herring
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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