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Date:   Mon, 6 Feb 2017 09:57:12 +0530
From:   Anup Patel <>
To:     Jassi Brar <>
Cc:     Vinod Koul <>,
        Rob Herring <>,
        Mark Rutland <>,
        Herbert Xu <>,
        "David S . Miller" <>,
        Dan Williams <>,
        Ray Jui <>,
        Scott Branden <>,
        Jon Mason <>,
        Rob Rice <>,
        BCM Kernel Feedback <>,,
        Devicetree List <>,
        Linux Kernel Mailing List <>,,
        linux-raid <>
Subject: Re: [PATCH 1/6] mailbox: Add new API mbox_channel_device() for clients

On Fri, Feb 3, 2017 at 5:35 PM, Jassi Brar <> wrote:
> On Thu, Feb 2, 2017 at 10:17 AM, Anup Patel <> wrote:
>> The remote processor can have DMAENGINE capabilities and client
>> can pass data to be processed via main memory. In such cases,
>> the client will require DMAble memory for remote processor.
>> This patch adds new API mbox_channel_device() which can be
>> used by clients to get struct device pointer of underlying
>> mailbox controller. This struct device pointer of mailbox
>> controller can be used by clients to allocate DMAble memory
>> for remote processor.
> IIUC, DT already provides a way for what you need.

Thanks for the suggestion. I will explore in this direction and
try to avoid this patch in next revision.

Can you please have a look at FlexRM driver which I
had submitted previously?


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