From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Bresticker Subject: [PATCH v8 6/9] mailbox: Add NVIDIA Tegra XUSB mailbox binding Date: Mon, 4 May 2015 10:36:39 -0700 Message-ID: <1430761002-9327-7-git-send-email-abrestic@chromium.org> References: <1430761002-9327-1-git-send-email-abrestic@chromium.org> Return-path: In-Reply-To: <1430761002-9327-1-git-send-email-abrestic-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Stephen Warren , Thierry Reding , Alexandre Courbot Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andrew Bresticker , Jon Hunter , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Jassi Brar List-Id: devicetree@vger.kernel.org Add device-tree bindings for the Tegra XUSB mailbox which will be used for communication between the Tegra xHCI controller's firmware and the host processor. Signed-off-by: Andrew Bresticker Cc: Rob Herring Cc: Pawel Moll Cc: Mark Rutland Cc: Ian Campbell Cc: Kumar Gala Cc: Jassi Brar --- Changes from v7: - Added back interrupts property. Changes from v6: - Removed reg/interrupts properties. No changes from v3/v4/v5. Changes from v2: - Dropped channel specifier. - Added pointer to mailbox documentation. Changes from v1: - Updated to use common mailbox bindings. --- .../bindings/mailbox/nvidia,tegra124-xusb-mbox.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/nvidia,tegra124-xusb-mbox.txt diff --git a/Documentation/devicetree/bindings/mailbox/nvidia,tegra124-xusb-mbox.txt b/Documentation/devicetree/bindings/mailbox/nvidia,tegra124-xusb-mbox.txt new file mode 100644 index 0000000..7eb72ce --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/nvidia,tegra124-xusb-mbox.txt @@ -0,0 +1,32 @@ +NVIDIA Tegra XUSB mailbox +========================= + +The Tegra XUSB mailbox is used by the Tegra xHCI controller's firmware to +communicate requests to the host and PHY drivers. + +Refer to ./mailbox.txt for generic information about mailbox device-tree +bindings. + +Required properties: +-------------------- + - compatible: For Tegra124, must contain "nvidia,tegra124-xusb-mbox". + Otherwise, must contain '"nvidia,-xusb-mbox", + "nvidia,tegra124-xusb-mbox"' where is tegra132. + - interrupts: Must contain the XUSB mailbox interrupt. + - #mbox-cells: Should be 0. There is only one physical channel. + +Example: +-------- + xusb_mbox: mailbox { + compatible = "nvidia,tegra124-xusb-mbox"; + interrupts = ; + + #mbox-cells = <0>; + }; + + usb-host@0,70090000 { + ... + mboxes = <&xusb_mbox>; + mbox-names = "xusb"; + ... + }; -- 2.2.0.rc0.207.ga3a616c -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html