From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 3/4] ARM: dts: UniPhier: add support for UniPhier SoCs and boards
Date: Fri, 17 Apr 2015 17:56:02 +0200 [thread overview]
Message-ID: <2809229.iRV9NgGGKe@wuerfel> (raw)
In-Reply-To: <1429285698-11829-4-git-send-email-yamada.masahiro@socionext.com>
On Saturday 18 April 2015 00:48:17 Masahiro Yamada wrote:
> +
> + smp_syscon at 59801208 {
> + compatible = "socionext,uniphier-smp-reg", "syscon";
> + reg = <0x59801208 0x4>;
> + };
> +
>
Using syscon here is a good idea, but please name the register area
according to what it is called in the data sheet, not according to how
it is used in Linux, and list all the registers that belong in this
device. It's quite possible that another driver needs a second
register from the same syscon.
E.g. if there is a device called a foo controller, make this device
foo-controller at 0x59800000 {
compatible = "socionext,uniphier-foo-controller", "syscon";
reg = <0x59800000 0x4000>;
};
then hardcode the 0x1208 offset in the smp code, or add it as an
argument to the property containing the phandle.
Arnd
next prev parent reply other threads:[~2015-04-17 15:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-17 15:48 [PATCH v3 0/4] ARM: SoC: add a new platform, UniPhier (arch/arm/mach-uniphier) Masahiro Yamada
2015-04-17 15:48 ` [PATCH v3 1/4] ARM: UniPhier: add basic support for UniPhier architecture Masahiro Yamada
2015-04-17 15:48 ` [PATCH v3 2/4] ARM: multi_v7_defconfig: enable UniPhier SoC family Masahiro Yamada
2015-04-17 15:48 ` [PATCH v3 3/4] ARM: dts: UniPhier: add support for UniPhier SoCs and boards Masahiro Yamada
2015-04-17 15:56 ` Arnd Bergmann [this message]
2015-04-21 7:23 ` Masahiro Yamada
2015-04-17 15:48 ` [PATCH v3 4/4] MAINTAINERS: add myself as ARM/UniPhier maintainer Masahiro Yamada
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