From: Rob Herring <robh@kernel.org>
To: Amelie Delaunay <amelie.delaunay@st.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.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>,
linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 1/2] dt-bindings: usb: ehci: add optional external vbus supply property
Date: Mon, 5 Mar 2018 19:57:43 -0600 [thread overview]
Message-ID: <20180306015743.uazy4e5quil2ijy2@rob-hp-laptop> (raw)
In-Reply-To: <1519897899-8577-2-git-send-email-amelie.delaunay@st.com>
On Thu, Mar 01, 2018 at 10:51:38AM +0100, Amelie Delaunay wrote:
> 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
Just make this an array with the index being the port (and drop
"portN_").
Rob
next prev parent reply other threads:[~2018-03-06 1:57 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 ` [PATCH v4 1/2] dt-bindings: usb: ehci: add optional external vbus supply property Amelie Delaunay
2018-03-06 1:57 ` Rob Herring [this message]
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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