Hi Hauke

u32 bcma_chipco_gpio_in(struct bcma_drv_cc *cc, u32 mask)
  {
-	return bcma_cc_read32(cc, BCMA_CC_GPIOIN)&  mask;
+	unsigned long flags;
+	u32 res;
+
+	spin_lock_irqsave(&cc->gpio_lock, flags);
+	res = bcma_cc_read32(cc, BCMA_CC_GPIOIN)&  mask;
+	spin_unlock_irqrestore(&cc->gpio_lock, flags);
+
+	return res;
  }

Hi Hauke,

do you need to lock the read access ?

if bcma_cc_read32() is a simple memory read wrapper you most likely wont 
need the lock

	John