[PATCHv3 2/6] arm: introduce config HAS_BANDGAP

[Tony Lindgren]

* Eduardo Valentin <eduardo.valentin at ti.com> [130607 13:53]:
> Bandgap is a device used to measure temperature on
> electronic equipments. It is widely used in digital
> integrated circuits. It is based on the dependency
> between silicon voltage and temperature.
> 
> This patch introduce HAS_BANDGAP config entry.
> This config is a boolean value so that arch
> code can flag if they feature a bandgap device.
> 
> This config entry follows the same idea behind
> ARCH_HAS_CPUFREQ.

I suggest you add this to Russell's patch system:

Acked-by: Tony Lindgren <tony at atomide.com>
 
> Cc: Russell King <linux at arm.linux.org.uk>
> Cc: Tony Lindgren <tony at atomide.com>
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-omap at vger.kernel.org
> Cc: linux-kernel at vger.kernel.org
> Cc: Fabio Stevam <festevam at gmail.com>
> Signed-off-by: Eduardo Valentin <eduardo.valentin at ti.com>
> ---
>  arch/arm/Kconfig            | 3 +++
>  arch/arm/mach-omap2/Kconfig | 1 +
>  2 files changed, 4 insertions(+)
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index d423d58..bcbdec9 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -174,6 +174,9 @@ config ARCH_HAS_CPUFREQ
>  	  and that the relevant menu configurations are displayed for
>  	  it.
>  
> +config ARCH_HAS_BANDGAP
> +	bool
> +
>  config GENERIC_HWEIGHT
>  	bool
>  	default y
> diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
> index f49cd51..8620ab5 100644
> --- a/arch/arm/mach-omap2/Kconfig
> +++ b/arch/arm/mach-omap2/Kconfig
> @@ -4,6 +4,7 @@ config ARCH_OMAP
>  config ARCH_OMAP2PLUS
>  	bool "TI OMAP2/3/4/5 SoCs with device tree support" if (ARCH_MULTI_V6 || ARCH_MULTI_V7)
>  	select ARCH_HAS_CPUFREQ
> +	select ARCH_HAS_BANDGAP
>  	select ARCH_HAS_HOLES_MEMORYMODEL
>  	select ARCH_OMAP
>  	select ARCH_REQUIRE_GPIOLIB
> -- 
> 1.8.2.1.342.gfa7285d
>