[PATCH] phy-core: Don't allow building phy-core as a module

[rogerq@ti.com (Roger Quadros)]

On 02/11/2014 06:03 PM, Hans de Goede wrote:
> include/phy/phy.h has stub code in there for when building without the
> phy-core enabled. This is useful for generic drivers such as ahci-platform,
> ehci-platoform and ohci-platform which have support for driving an optional
> phy passed to them through the devicetree.
> 
> Since on some boards this phy functionality is not needed, being able to
> disable the phy subsystem without needing a lot of #ifdef magic in the
> driver using it is quite useful.
> 
> However this breaks when the module using the phy subsystem is build-in and
> the phy-core is not, which leads to the build failing with missing symbol
> errors in the linking stage of the zImage.
> 
> Which leads to gems such as this being added to the Kconfig for achi_platform:
> 
> 	depends on GENERIC_PHY || !GENERIC_PHY
> 
> Rather then duplicating this code in a lot of places using the phy-core,
> I believe it is better to simply not allow the phy-core to be built as a
> module. The phy core is quite small and has no external dependencies, so
> always building it in when enabling it should not be an issue.
> 
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Acked-by: Roger Quadros <rogerq@ti.com>

--
cheers,
-roger

> ---
>  drivers/phy/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
> index 6070c99..6e336b4 100644
> --- a/drivers/phy/Kconfig
> +++ b/drivers/phy/Kconfig
> @@ -5,7 +5,7 @@
>  menu "PHY Subsystem"
>  
>  config GENERIC_PHY
> -	tristate "PHY Core"
> +	bool "PHY Core"
>  	help
>  	  Generic PHY support.
>  
>