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From: Viresh Kumar <viresh.kumar@linaro.org>
To: Jassi Brar <jassisinghbrar@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>, Rob Herring <robh+dt@kernel.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	Sudeep Holla <sudeep.holla@arm.com>,
	Devicetree List <devicetree@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [RFC] dt-bindings: mailbox: add doorbell support to ARM MHU
Date: Mon, 18 May 2020 13:05:14 +0530	[thread overview]
Message-ID: <20200518073514.tjodf6qxg3wjzyb4@vireshk-i7> (raw)
In-Reply-To: <CABb+yY1wJMzakpz0h6ZxAh4Z3OB718f+Wq3RP0R4NZ_U=vRMkw@mail.gmail.com>

On 15-05-20, 11:46, Jassi Brar wrote:
> As I asked you yesterday over the call, it may help if you could share
> some numbers to back up the doomsday scenario.

Yes, I have already asked Sudeep to get some numbers for this. He will
get back to us.

> > - With the current approach it isn't possible to assign different bits
> >   (or doorbell numbers) to clients from DT and the only way of doing
> >   that without adding new bindings is by extending #mbox-cells to accept
> >   a value of 2 as done in this patch.
> >
> I am afraid you are confused. You can use bit/doorbell-6 by passing
> 0x40 to mhu as the data to send.

That's how the code will do it, right I agree. What I was asking was
the way this information is passed from DT.

-- 
viresh

  reply	other threads:[~2020-05-18  7:43 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-15  5:17 [RFC] dt-bindings: mailbox: add doorbell support to ARM MHU Viresh Kumar
2020-05-15 16:46 ` Jassi Brar
2020-05-18  7:35   ` Viresh Kumar [this message]
2020-05-19  0:53     ` Jassi Brar
2020-05-19  4:39       ` Viresh Kumar
2020-05-19  1:29 ` Bjorn Andersson
2020-05-19  3:40   ` Viresh Kumar
2020-05-19  4:05     ` Jassi Brar
2020-06-03 18:31       ` Sudeep Holla
2020-06-03 18:42         ` Jassi Brar
2020-06-03 18:28   ` Sudeep Holla
2020-05-28 19:20 ` Rob Herring
2020-05-29  4:07   ` Viresh Kumar
2020-06-03 18:04     ` Sudeep Holla
2020-06-03 18:17       ` Sudeep Holla
2020-06-04  5:59         ` Viresh Kumar
2020-06-04  8:28           ` Sudeep Holla
2020-06-03 18:32       ` Jassi Brar
2020-06-04  9:20         ` Sudeep Holla
2020-06-04 15:15           ` Jassi Brar
2020-06-05  4:56             ` Sudeep Holla
2020-06-05  6:30               ` Jassi Brar
2020-06-05  8:58                 ` Sudeep Holla
2020-06-05 15:42                   ` Jassi Brar
2020-06-10  9:33                     ` Viresh Kumar
2020-06-11 10:00                       ` Sudeep Holla
2020-06-12  0:34                         ` Jassi Brar
2020-06-12  5:28                           ` Viresh Kumar
2020-09-08  9:14                             ` Arnd Bergmann
2020-09-08  9:27                               ` Viresh Kumar
2020-09-08 13:26                               ` Sudeep Holla
2020-09-09  3:23                               ` Jassi Brar
2020-09-09  4:46                                 ` Viresh Kumar
2020-09-09  9:31                                 ` Sudeep Holla
2020-05-29  5:20   ` Jassi Brar
2020-05-29  6:27     ` Viresh Kumar

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