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x-vs=clean score=-100 state=0 X-ME-VSCategory: clean X-CM-Envelope: MS4wfH4xbF4vAKu5WwhhzyV4LGpDEHkN42P2ez1gxLzMwamz77msuodfQyIut3B/eWKdppBf25jWFmSqrlWb8cqVFnfqYTZjDp8bzbNT0bykLlEvrl4CyugD 3HAHOm1KILV3umCjaSW8ZpBtQW5qcs8KgAPv1zyrDxTqHBPmk6SYX0+MqNBPPlqRrY14Q3Xgmd3ub6goOiQMWwxxK7ofHACrvjr9oTiApU0hMbe/ca/zLTCs X-CM-Analysis: v=2.3 cv=Tq3Iegfh c=1 sm=1 tr=0 a=UK1r566ZdBxH71SXbqIOeA==:117 a=UK1r566ZdBxH71SXbqIOeA==:17 a=kj9zAlcOel0A:10 a=VUJBJC2UJ8kA:10 a=Ikd4Dj_1AAAA:8 a=VwQbUJbxAAAA:8 a=b1CNDAZ_6rHJY3lQFZQA:9 a=CjuIK1q_8ugA:10 a=x8gzFH9gYPwA:10 a=AjGcO6oz07-iQ99wixmX:22 X-ME-CMScore: 0 X-ME-CMCategory: none Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752329AbeEVUUk (ORCPT ); Tue, 22 May 2018 16:20:40 -0400 Received: from mail-yw0-f193.google.com ([209.85.161.193]:34694 "EHLO mail-yw0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751528AbeEVUUi (ORCPT ); Tue, 22 May 2018 16:20:38 -0400 X-Google-Smtp-Source: AB8JxZrWTetcEmxf+Xe0YmIFEVJsJ/e/ZzfrfMKLwb6XcRivwgr311ylFLlVVNvjFu0KlaW6CUEaBA== Date: Tue, 22 May 2018 15:20:36 -0500 From: Rob Herring To: Mikko Perttunen Cc: mark.rutland@arm.com, jassisinghbrar@gmail.com, gregkh@linuxfoundation.org, thierry.reding@gmail.com, jonathanh@nvidia.com, araza@nvidia.com, devicetree@vger.kernel.org, linux-serial@vger.kernel.org, linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/8] dt-bindings: serial: Add bindings for nvidia,tegra194-tcu Message-ID: <20180522202036.GB24611@rob-hp-laptop> References: <20180508114403.14499-1-mperttunen@nvidia.com> <20180508114403.14499-3-mperttunen@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180508114403.14499-3-mperttunen@nvidia.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-serial-owner@vger.kernel.org X-Mailing-List: linux-serial@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Tue, May 08, 2018 at 02:43:57PM +0300, Mikko Perttunen wrote: > Add bindings for the Tegra Combined UART device used to talk to the > UART console on Tegra194 systems. > > Signed-off-by: Mikko Perttunen > --- > .../bindings/serial/nvidia,tegra194-tcu.txt | 35 ++++++++++++++++++++++ > 1 file changed, 35 insertions(+) > create mode 100644 Documentation/devicetree/bindings/serial/nvidia,tegra194-tcu.txt > > diff --git a/Documentation/devicetree/bindings/serial/nvidia,tegra194-tcu.txt b/Documentation/devicetree/bindings/serial/nvidia,tegra194-tcu.txt > new file mode 100644 > index 000000000000..86763bc5d74f > --- /dev/null > +++ b/Documentation/devicetree/bindings/serial/nvidia,tegra194-tcu.txt > @@ -0,0 +1,35 @@ > +NVIDIA Tegra Combined UART (TCU) > + > +The TCU is a system for sharing a hardware UART instance among multiple > +systems withing the Tegra SoC. It is implemented through a mailbox- s/withing/within/ Otherwise, Reviewed-by: Rob Herring > +based protocol where each "virtual UART" has a pair of mailboxes, one > +for transmitting and one for receiving, that is used to communicate > +with the hardware implementing the TCU. > + > +Required properties: > +- name : Should be tcu > +- compatible > + Array of strings > + One of: > + - "nvidia,tegra194-tcu" > +- mbox-names: > + "rx" - Mailbox for receiving data from hardware UART > + "tx" - Mailbox for transmitting data to hardware UART > +- mboxes: Mailboxes corresponding to the mbox-names. > + > +This node is a mailbox consumer. See the following files for details of > +the mailbox subsystem, and the specifiers implemented by the relevant > +provider(s): > + > +- .../mailbox/mailbox.txt > +- .../mailbox/nvidia,tegra186-hsp.txt > + > +Example bindings: > +----------------- > + > +tcu: tcu { > + compatible = "nvidia,tegra194-tcu"; > + mboxes = <&hsp_top0 TEGRA_HSP_MBOX_TYPE_SM 0>, > + <&hsp_aon TEGRA_HSP_MBOX_TYPE_SM 1>; > + mbox-names = "rx", "tx"; > +}; > -- > 2.16.1 >