linux-kernel - Re: [PATCH 4/4] mailbox: arm_mhu: Add ARM MHU doorbell driver

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Date:   Wed, 7 Oct 2020 11:35:25 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Sudeep Holla <sudeep.holla@....com>
Cc:     Jassi Brar <jassisinghbrar@...il.com>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        ALKML <linux-arm-kernel@...ts.infradead.org>,
        DTML <devicetree@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Frank Rowand <frowand.list@...il.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh@...nel.org>, Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH 4/4] mailbox: arm_mhu: Add ARM MHU doorbell driver

On 28-09-20, 12:44, Sudeep Holla wrote:
> The MHU drives the signal using a 32-bit register, with all 32 bits
> logically ORed together. The MHU provides a set of registers to enable
> software to set, clear, and check the status of each of the bits of this
> register independently. The use of 32 bits for each interrupt line
> enables software to provide more information about the source of the
> interrupt. For example, each bit of the register can be associated with
> a type of event that can contribute to raising the interrupt.
> 
> This patch adds a separate the MHU controller driver for doorbel mode
> of operation using the extended DT binding to add support the same.
> 
> Signed-off-by: Sudeep Holla <sudeep.holla@....com>
> ---
>  drivers/mailbox/Makefile     |   2 +-
>  drivers/mailbox/arm_mhu_db.c | 359 +++++++++++++++++++++++++++++++++++

Please put an entry in MAINTAINERS as well for this.

-- 
viresh