Problem registering the Platform ADC driver

[conn intel]

Dear Friends,

I am having issue with registering the platform device driver for ADC.

http://pastebin.com/Ym1NTkfL - Link contains the snip code of kernel
platform device  and driver registration code .

I have build the driver as module. When I load the driver as module, the
probe function is not called from the driver. Can any one suggest what is
missing in the code?

I tried to find and study over internet about how to create platform device
driver but in vain.

Output:

# insmod adc_at91.ko
<8>Under at91_adc_init

# rmmod adc_at91.ko
<8>Under at91_adc_exit

Thank you,
Ankur.
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