regulator: of: setup initial suspend state

Setup initial suspend state to mem, if suspend state is defined for
mem state. This makes sure that the regulators are in proper mode
already from boot.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Signed-off-by: NDave Gerlach <d-gerlach@ti.com>
Signed-off-by: NKeerthy <j-keerthy@ti.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

drivers/regulator/of_regulator.c

@@ -163,6 +163,9 @@ static void of_get_regulation_constraints(struct device_node *np,
 					"regulator-suspend-microvolt", &pval))
 			suspend_state->uV = pval;
 
+		if (i == PM_SUSPEND_MEM)
+			constraints->initial_state = PM_SUSPEND_MEM;
+
 		of_node_put(suspend_np);
 		suspend_state = NULL;
 		suspend_np = NULL;