linux-kernel - Re: [PATCH 1/3] drivers: misc: add omap

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Date:	Tue, 19 Oct 2010 10:16:51 -0700
From:	Kevin Hilman <khilman@...prootsystems.com>
To:	Ohad Ben-Cohen <ohad@...ery.com>
Cc:	<linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<akpm@...ux-foundation.org>, Greg KH <greg@...ah.com>,
	Tony Lindgren <tony@...mide.com>,
	Benoit Cousson <b-cousson@...com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Hari Kanigeri <h-kanigeri2@...com>, Suman Anna <s-anna@...com>,
	Simon Que <sque@...com>,
	"Krishnamoorthy\, Balaji T" <balajitk@...com>
Subject: Re: [PATCH 1/3] drivers: misc: add omap_hwspinlock driver

Ohad Ben-Cohen <ohad@...ery.com> writes:

> From: Simon Que <sque@...com>
>
> Add driver for OMAP's Hardware Spinlock module.
>
> The OMAP Hardware Spinlock module, initially introduced in OMAP4,
> provides hardware assistance for synchronization between the
> multiple processors in the device (Cortex-A9, Cortex-M3 and
> C64x+ DSP).

[...]

> diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
> index b743312..ce4b7a6 100644
> --- a/drivers/misc/Kconfig
> +++ b/drivers/misc/Kconfig
> @@ -390,6 +390,16 @@ config BMP085
>  	  To compile this driver as a module, choose M here: the
>  	  module will be called bmp085.
>  
> +config OMAP_HWSPINLOCK
> +	bool "OMAP Hardware Spinlock module"

Should be tristate so it can also be built as a module by default.

e.g., when building multi-OMAP kernels, no reason or this to be
built-in.  It can then be loaded as a module on OMAP4 only.

Kevin
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