From 3dac9a79e1425069e7950bd46bd932e0b1c1d795 Mon Sep 17 00:00:00 2001
From: Varka Bhadram <varkabhadram@gmail.com>
Date: Mon, 16 Jun 2014 09:12:31 +0530
Subject: [PATCH] mrf24j40: separate h/w init and add checkings

separate the mrf24j40 hardware initialisation from probe()
and adds the sanity checkings.

These checkings are required if somebody hasn't a right spi configuration
the probe function should fail. So we have to return from there.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
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