linux-kernel - Re: [PATCH] firmware: arm_scpi: Add hardware dependencies

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Message-ID: <20170125145037.14a790c4@endymion>
Date:   Wed, 25 Jan 2017 14:50:37 +0100
From:   Jean Delvare <jdelvare@...e.de>
To:     Sudeep Holla <sudeep.holla@....com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        "Jon Medhurst (Tixy)" <tixy@...aro.org>
Subject: Re: [PATCH] firmware: arm_scpi: Add hardware dependencies

On Wed, 25 Jan 2017 13:38:47 +0000, Sudeep Holla wrote:
> On 25/01/17 13:32, Jean Delvare wrote:
> > With a name like that, I assume that the ARM SCPI protocol is only
> > useful on the ARM architectures.
> > 
> > Signed-off-by: Jean Delvare <jdelvare@...e.de>
> > Fixes: 8f1498c03d15 ("firmware: arm_scpi: make it depend on MAILBOX instead of")
> > Cc: Sudeep Holla <sudeep.holla@....com>
> > Cc: Jon Medhurst (Tixy) <tixy@...aro.org>
> > ---
> > Please correct me if I'm wrong.
> 
> I won't say you are wrong but the reason why it's named arm_scpi is
> because the protocol was developed by ARM. It doesnn't mean only
> ARM/ARM64 needs to use it, it can be used on any architecture for
> inter-processor communication using any communication technique
> (currently mailbox is the only supported in the driver)

OK, thanks for the clarification. In practice, what other architectures
are using it?

-- 
Jean Delvare
SUSE L3 Support