From: Amelie Delaunay <amelie.delaunay@st.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Tony Prisk <linux@prisktech.co.nz>,
Alan Stern <stern@rowland.harvard.edu>,
Roger Quadros <rogerq@ti.com>,
Felipe Balbi <felipe.balbi@linux.intel.com>,
Robin Murphy <robin.murphy@arm.com>
Cc: devicetree@vger.kernel.org,
Amelie Delaunay <amelie.delaunay@st.com>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 1/2] dt-bindings: usb: ehci: add optional external vbus supply property
Date: Thu, 1 Mar 2018 10:51:38 +0100 [thread overview]
Message-ID: <1519897899-8577-2-git-send-email-amelie.delaunay@st.com> (raw)
In-Reply-To: <1519897899-8577-1-git-send-email-amelie.delaunay@st.com>
On some boards, especially when vbus supply requires large current,
and the charge pump on the PHY isn't enough, an external vbus power switch
per port may be used.
Add portN_vbus-supply property to usb-ehci bindings. As the number of ports
depends on the ehci controller, and the port on which an external vbus
supply depends on the platform, <portN> is used to make it generic.
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
---
Documentation/devicetree/bindings/usb/usb-ehci.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/usb/usb-ehci.txt b/Documentation/devicetree/bindings/usb/usb-ehci.txt
index 3efde12..cd576db 100644
--- a/Documentation/devicetree/bindings/usb/usb-ehci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-ehci.txt
@@ -19,6 +19,7 @@ Optional properties:
- phys : phandle + phy specifier pair
- phy-names : "usb"
- resets : phandle + reset specifier pair
+ - portN_vbus-supply : phandle of regulator supplying vbus for port N
Example (Sequoia 440EPx):
ehci@e0000300 {
--
2.7.4
next prev parent reply other threads:[~2018-03-01 9:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-01 9:51 [PATCH v4 0/2] usb: host: ehci-platform: add support for optional external vbus supply Amelie Delaunay
2018-03-01 9:51 ` Amelie Delaunay [this message]
2018-03-06 1:57 ` [PATCH v4 1/2] dt-bindings: usb: ehci: add optional external vbus supply property Rob Herring
2018-03-06 14:09 ` Robin Murphy
2018-03-06 14:40 ` Rob Herring
2018-03-20 9:10 ` Amelie DELAUNAY
2018-03-01 9:51 ` [PATCH v4 2/2] usb: host: ehci-platform: add support for optional external vbus supply Amelie Delaunay
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