linux-kernel - Re: [PATCHv2] ARM: Push selects for TWD/SCU into machine entries

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Date:	Wed, 24 Oct 2012 11:54:54 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Stephen Boyd <sboyd@...eaurora.org>
CC:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	David Brown <davidb@...eaurora.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Russell King <linux@....linux.org.uk>,
	Sascha Hauer <kernel@...gutronix.de>,
	Shiraz Hashim <shiraz.hashim@...com>,
	Srinidhi Kasagar <srinidhi.kasagar@...ricsson.com>,
	Tony Lindgren <tony@...mide.com>
Subject: Re: [PATCHv2] ARM: Push selects for TWD/SCU into machine entries

On 10/24/2012 11:24 AM, Stephen Boyd wrote:
> The TWD and SCU configs are selected by default as long as
> MSM_SCORPIONMP is false and/or MCT is false. Implementing the
> logic this way certainly saves lines in the Kconfig but it
> precludes those machines which select MSM_SCORPIONMP or MCT from
> participating in the single zImage effort because when those
> machines are combined with other SMP capable machines the TWD and
> SCU are no longer selected by default.
> 
> Push the select out to the machine entries so that we can compile
> these machines together and still select the appropriate configs.

Acked-by: Stephen Warren <swarren@...dia.com>

> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig

> @@ -633,6 +633,8 @@ config ARCH_TEGRA
>  	select GENERIC_GPIO
>  	select HAVE_CLK
>  	select HAVE_SMP
> +	select HAVE_ARM_SCU if SMP
> +	select HAVE_ARM_TWD if LOCAL_TIMERS
>  	select MIGHT_HAVE_CACHE_L2X0
>  	select SPARSE_IRQ
>  	select USE_OF

Where will this patch be merged?

It probably won't happen for 3.8, but that config fragment will move to
arch/arm/mach-tegra/Kconfig when Tegra enables single zImage support, I
believe. So, it'd be good to make sure this patch gets merged somewhere
that could be used as a baseline for other arm-soc branches if needed,
to avoid merge conflicts.
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