From patchwork Mon May 4 17:36:39 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Bresticker X-Patchwork-Id: 467766 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id CB7EC140317 for ; Tue, 5 May 2015 03:39:06 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752272AbbEDRiO (ORCPT ); Mon, 4 May 2015 13:38:14 -0400 Received: from mail-oi0-f73.google.com ([209.85.218.73]:34404 "EHLO mail-oi0-f73.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752125AbbEDRgx (ORCPT ); Mon, 4 May 2015 13:36:53 -0400 Received: by oiax69 with SMTP id x69so10272117oia.1 for ; Mon, 04 May 2015 10:36:52 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=8qQVYDMLRjxg4gwwbKsBlroQXV1O1UFhY0fX9jz4sGY=; b=lvwbrc5pLF79XAXhdFamcjIfHFh5qpWXR1oyKCkIGut5P8xMlGAR5nPpwc9gYfdSVC HVnPbFfC+dt5bZcgOnBognNhYpzfvX9daQGyrzqzt3M4NG2S3POmS7BhVax1HVHHdmCd tX3xNBrah/XRHXz7Sc/tisPNHG619avIvA+/9VLQNBmciWwbLYtZH7Ki9CXLZnfGJqPx 0g7L2q1fV8QJl6Z6ylOVyv5ZZt4HG1d9i7DVs9lCkUP5rHY2E7NVmM6XcZJNnVhw0JMU Sli9a/rmBY/ME/DIlmyW00uCaGcjIQchUqAoF9Bdk8qtT9cIZ0Zbrt2pkYgqMVQHw9bL PPbA== X-Gm-Message-State: ALoCoQmU1rcT5bKx0FQSktd1xZxuaejbRh2juarAznN8lLZ/zaQtY8o9GrRda8qf6BsGzPRv3i3G X-Received: by 10.182.108.196 with SMTP id hm4mr42960779obb.33.1430761012483; Mon, 04 May 2015 10:36:52 -0700 (PDT) Received: from corpmail-nozzle1-2.hot.corp.google.com ([100.108.1.103]) by gmr-mx.google.com with ESMTPS id v17si731441yhc.0.2015.05.04.10.36.51 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 04 May 2015 10:36:52 -0700 (PDT) Received: from abrestic.mtv.corp.google.com ([172.22.65.70]) by corpmail-nozzle1-2.hot.corp.google.com with ESMTP id 2HHtFqhR.2; Mon, 04 May 2015 10:36:52 -0700 Received: by abrestic.mtv.corp.google.com (Postfix, from userid 137652) id 318F8A4910; Mon, 4 May 2015 10:36:51 -0700 (PDT) From: Andrew Bresticker To: Stephen Warren , Thierry Reding , Alexandre Courbot Cc: devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Andrew Bresticker , Jon Hunter , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Jassi Brar 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> X-Mailer: git-send-email 2.2.0.rc0.207.ga3a616c In-Reply-To: <1430761002-9327-1-git-send-email-abrestic@chromium.org> References: <1430761002-9327-1-git-send-email-abrestic@chromium.org> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: 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 Reviewed-by: Benson Leung --- 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"; + ... + };