From mboxrd@z Thu Jan  1 00:00:00 1970
From: Arnd Bergmann <arnd@arndb.de>
Subject: Re: [RFC PATCH for Juno 0/2] Drivers for Juno to boot from ACPI
Date: Mon, 01 Sep 2014 17:29:05 +0200
Message-ID: <353732273.2TKdyNJ83M@wuerfel>
References: <1409583961-7466-1-git-send-email-hanjun.guo@linaro.org>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7Bit
Return-path: <linux-acpi-owner@vger.kernel.org>
Received: from mout.kundenserver.de ([212.227.17.24]:62958 "EHLO
	mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1751665AbaIAPaJ (ORCPT
	<rfc822;linux-acpi@vger.kernel.org>); Mon, 1 Sep 2014 11:30:09 -0400
In-Reply-To: <1409583961-7466-1-git-send-email-hanjun.guo@linaro.org>
Sender: linux-acpi-owner@vger.kernel.org
List-Id: linux-acpi@vger.kernel.org
To: Hanjun Guo <hanjun.guo@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>, "Rafael J. Wysocki" <rjw@rjwysocki.net>, Mark Rutland <mark.rutland@arm.com>, Olof Johansson <olof@lixom.net>, Grant Likely <grant.likely@linaro.org>, Graeme Gregory <graeme.gregory@linaro.org>, Sudeep Holla <Sudeep.Holla@arm.com>, Will Deacon <will.deacon@arm.com>, Jason Cooper <jason@lakedaemon.net>, Marc Zyngier <marc.zyngier@arm.com>, Bjorn Helgaas <bhelgaas@google.com>, Daniel Lezcano <daniel.lezcano@linaro.org>, Mark Brown <broonie@kernel.org>, Rob Herring <robh@kernel.org>, Robert Richter <rric@kernel.org>, Lv Zheng <lv.zheng@intel.com>, Robert Moore <robert.moore@intel.com>, Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>, Liviu Dudau <Liviu.Dudau@arm.com>, Randy Dunlap <rdunlap@infradead.org>, Charles.Garcia-Tobin@arm.com, linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.or

On Monday 01 September 2014 23:05:59 Hanjun Guo wrote:
> This patch set is example of the sort of driver changes needed to boot
> Juno using ACPI tables, which using the ACPI tables devloped for MS
> Windows and published by ARM [1].

What about platform support?

I see that there is a patch in your git tree at
https://git.linaro.org/leg/acpi/acpi.git/commitdiff/b9a635e3b4cb167d399
that exposes the raw system registers in the same way that the DT support
does, which I guess is not how you plan to do it for ACPI when you are
done.

Is that still work in progress? How do you plan to abstract things
like the hwmon, LEDs, GPIO etc that are handled through the
sysregs in hardware?

	Arnd