quoted

  	pdata = dev_get_platdata(ab8500->dev);
-	if (!pdata) {
-		dev_err(&pdev->dev, "null pdata\n");
+	if (!pdata&&  !np) {
+		dev_err(&pdev->dev, "null pdata and no device tree found\n");
  		return -EINVAL;
  	}

Neither should be mandatory.

Unfortunately, this has to reside, as without it I'd have to re-write 
the driver. Something with is completely out of scope of what I'm trying 
to achieve right now. It's something I'd be happy to do in the future, 
but not in this patch-set.

Kind regards,
Lee

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
M: +44 77 88 633 515
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