linux-kernel - Re: [PATCH v4 1/4] dt-bindings: mailbox: Document Hi6220 mailbox driver

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Message-ID: <CABb+yY0S18ShH3+sBnq=mOYMY=f4BNp947cUJae4YPfR=wPGGg@mail.gmail.com>
Date:	Fri, 16 Oct 2015 10:26:48 +0530
From:	Jassi Brar <jassisinghbrar@...il.com>
To:	Leo Yan <leo.yan@...aro.org>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Bintian Wang <bintian.wang@...wei.com>,
	Yiping Xu <xuyiping@...ilicon.com>,
	Haojian Zhuang <haojian.zhuang@...aro.org>,
	Wei Xu <xuwei5@...ilicon.com>,
	Devicetree List <devicetree@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 1/4] dt-bindings: mailbox: Document Hi6220 mailbox driver

On Mon, Oct 12, 2015 at 10:02 PM, Leo Yan <leo.yan@...aro.org> wrote:

> +
> +Mailbox Device Node:
> +====================
> +
> +Required properties:
> +--------------------
> +- compatible:          Shall be "hisilicon,hi6220-mbox"
> +- reg:                 Contains the mailbox register address range (base
> +                       address and length); the first item is for IPC
> +                       registers, the second item is shared buffer for
> +                       slots.
>
Is the shared-buffer a part of mailbox controller or just regular
memory that could be used for purposes other than mailbox also? If
latter, please remove it from here.

> +Mailbox client
> +===============
> +
> +"mboxes" and the optional "mbox-names" (please see
> +Documentation/devicetree/bindings/mailbox/mailbox.txt for details). Each value
> +of the mboxes property should contain a phandle to the mailbox controller
> +device node and second argument is the channel index. It must be 0 (hardware
> +support only one channel).
>
sorry, what must be 0?  You have MBOX_CHAN_MAX and MBOX_CHAN_NUM as 32
and 2 in the driver.
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