OMAP3+: voltage: add scalable flag to voltagedomain

Add a 'bool scalable' flag to the struct powerdomain and set it for
the scalable domains on OMAP3 and OMAP4.
Signed-off-by: Kevin Hilman <khilman@ti.com>

arch/arm/mach-omap2/voltage.c

@@ -1054,6 +1054,9 @@ int __init omap_voltage_late_init(void)
 		pr_err("%s: Unable to create voltage debugfs main dir\n",
 			__func__);
 	list_for_each_entry(voltdm, &voltdm_list, node) {
+		if (!voltdm->scalable)
+			continue;
+
 		if (voltdm->vdd) {
 			if (omap_vdd_data_configure(voltdm))
 				continue;

arch/arm/mach-omap2/voltage.h

@@ -53,11 +53,13 @@ struct omap_vfsm_instance_data {
 /**
  * struct voltagedomain - omap voltage domain global structure.
  * @name: Name of the voltage domain which can be used as a unique identifier.
+ * @scalable: Whether or not this voltage domain is scalable
  * @node: list_head linking all voltage domains
  * @vdd: to be removed
  */
 struct voltagedomain {
 	char *name;
+	bool scalable;
 	struct list_head node;
 	struct omap_vdd_info *vdd;
 };

arch/arm/mach-omap2/voltagedomains3xxx_data.c

@@ -61,11 +61,13 @@ static struct omap_vdd_info omap3_vdd2_info = {
 
 static struct voltagedomain omap3_voltdm_mpu = {
 	.name = "mpu_iva",
+	.scalable = true,
 	.vdd = &omap3_vdd1_info,
 };
 
 static struct voltagedomain omap3_voltdm_core = {
 	.name = "core",
+	.scalable = true,
 	.vdd = &omap3_vdd2_info,
 };
 

arch/arm/mach-omap2/voltagedomains44xx_data.c

@@ -70,16 +70,19 @@ static struct omap_vdd_info omap4_vdd_core_info = {
 
 static struct voltagedomain omap4_voltdm_mpu = {
 	.name = "mpu",
+	.scalable = true,
 	.vdd = &omap4_vdd_mpu_info,
 };
 
 static struct voltagedomain omap4_voltdm_iva = {
 	.name = "iva",
+	.scalable = true,
 	.vdd = &omap4_vdd_iva_info,
 };
 
 static struct voltagedomain omap4_voltdm_core = {
 	.name = "core",
+	.scalable = true,
 	.vdd = &omap4_vdd_core_info,
 };