[PATCH v3] arm: omap4: hsmmc: check for null pointer

[Tony Lindgren]

* Balaji T K <balajitk at ti.com> [120425 04:57]:
> platform_device pdev can be NULL if CONFIG_MMC_OMAP_HS is not set.
> Add check for NULL pointer. while at it move the duplicated functions
> to omap4-common.c
> 
> Fixes the following boot crash seen with omap4sdp and omap4panda
> when MMC is disabled.

Thanks applying into fixes-non-critical, this is a bit too intrusive for
the -rc series.

Regards,

Tony