at86rf230: fix volatile regmap registers

These registers are also changed by transceiver and should be volatile
for right accessing via regmap debugfs.

Signed-off-by: Alexander Aring <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>

Author: alexaring

drivers/net/ieee802154/at86rf230.c

@@ -421,6 +421,8 @@ at86rf230_reg_volatile(struct device *dev, unsigned int reg)
 	case RG_PHY_ED_LEVEL:
 	case RG_IRQ_STATUS:
 	case RG_VREG_CTRL:
+	case RG_PLL_CF:
+	case RG_PLL_DCU:
 		return true;
 	default:
 		return false;