linux-kernel - Re: [PATCH v3 0/3] Qualcomm Resource Power Manager driver

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Message-ID: <CAJAp7OgXDYh1VEZ43UBbs8L-d2P-7ub0Yg3s73BcqC6ekzEBJQ@mail.gmail.com>
Date:	Thu, 19 Jun 2014 21:59:28 -0700
From:	Bjorn Andersson <bjorn@...o.se>
To:	Jassi Brar <jaswinder.singh@...aro.org>
Cc:	Kevin Hilman <khilman@...aro.org>,
	Kumar Gala <galak@...eaurora.org>,
	Lee Jones <lee.jones@...aro.org>,
	Bjorn Andersson <bjorn.andersson@...ymobile.com>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Josh Cartwright <joshc@...eaurora.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-arm-msm <linux-arm-msm@...r.kernel.org>,
	Paul Walmsley <paul@...an.com>
Subject: Re: [PATCH v3 0/3] Qualcomm Resource Power Manager driver

On Thu, Jun 19, 2014 at 1:01 PM, Jassi Brar <jaswinder.singh@...aro.org> wrote:
[...]
> Mailbox isn't about how you program the h/w. Do whatever is needed to
> send a message across.
>

But there are no messages to get across here, each individual resource
is exposed directly in the address space of the Linux system.

> BTW I haven't looked closely, but probably you could push the data tables in DT?
>

The first RFC for this had all configuration in devicetree; we decided
not to go that path as this gave a cleaner abstraction and is less
error prone.

Regards,
Bjorn
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