linux-kernel - Re: [PATCH v7 4/5] ARM: tegra: Add efuse and apbmisc bindings

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Message-ID: <5390B9F3.8030108@wwwdotorg.org>
Date:	Thu, 05 Jun 2014 12:41:55 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Peter De Schrijver <pdeschrijver@...dia.com>
CC:	Russell King <linux@....linux.org.uk>,
	Thierry Reding <thierry.reding@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Wolfram Sang <wsa@...-dreams.de>,
	linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 4/5] ARM: tegra: Add efuse and apbmisc bindings

On 06/05/2014 07:09 AM, Peter De Schrijver wrote:
> Add efuse and apbmisc bindings for Tegra20, Tegra30, Tegra114 and Tegra124.

> diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi

> +	apbmisc@...00800 {
> +		compatible = "nvidia,tegra114-apbmisc", "nvidia,tegra20-apbmisc";

Is the Tegra114 APBMISC register layout 100% a backwards-compatible
superset of that in Tegra20? For both registers the code currently uses
*and* all possible registers the code could ever use? Since the APB MISC
is a bit of a dumping ground for random registers, that feels unlikely,
but perhaps it's possible.
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