ARM: OMAP2+: pm: Do not init statically the SR and voltage layer with DT

In the case of DT, the PMIC and SR initialization will be done using
a completely different mechanism.

Disable this part if a DT blob is available.
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>

arch/arm/mach-omap2/pm.c

@@ -227,6 +227,14 @@ postcore_initcall(omap2_common_pm_init);
 
 static int __init omap2_common_pm_late_init(void)
 {
+	/*
+	 * In the case of DT, the PMIC and SR initialization will be done using
+	 * a completely different mechanism.
+	 * Disable this part if a DT blob is available.
+	 */
+	if (of_have_populated_dt())
+		return 0;
+
 	/* Init the voltage layer */
 	omap_pmic_late_init();
 	omap_voltage_late_init();