[PATCH 1/4] pinctrl: dove: Prevent NULL dereference if of_match_device returns NULL

[thomas.petazzoni@free-electrons.com (Thomas Petazzoni)]

Dear Axel Lin,

On Thu, 15 Nov 2012 21:44:07 +0800, Axel Lin wrote:

> BTW, I found there is no way to compile the dove and kirkwood pinctrl
> drivers.
> I need add below patch to compile these two drivers, how do you think about
> below patch?
> ( In dove, the USE_OF is optional, it is selected only when MACH_DOVE_DT is
> enabled )
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 14f8160..dda6785 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -531,6 +531,8 @@ config ARCH_DOVE
>         select CPU_V7
>         select GENERIC_CLOCKEVENTS
>         select MIGHT_HAVE_PCI
> +       select PINCTRL
> +       select PINCTRL_DOVE if USE_OF
>         select PLAT_ORION_LEGACY
>         select USB_ARCH_HAS_EHCI
>         help
> @@ -542,6 +544,8 @@ config ARCH_KIRKWOOD
>         select CPU_FEROCEON
>         select GENERIC_CLOCKEVENTS
>         select PCI
> +       select PINCTRL
> +       select PINCTRL_KIRKWOOD
>         select PLAT_ORION_LEGACY
>         help
>           Support for the following Marvell Kirkwood series SoCs:

See "[PATCH 1/5] ARM: Kirkwood: Allow use of pinctrl" and "[PATCH 4/5]
ARM: Dove: Make use of pinctrl driver" which have been posted by Andrew
Lunn on October, 24th.

Best regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com