OMAP4: powerdomain data: add voltage domains

Add voltage domain name to indicate which voltagedomain each
powerdomain is in.

The fixed voltage domain like ldo_wakeup for emu and wkup power
domain is added too.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
[khilman@ti.com]: renamed wakeup domain: s/ldo_wakeup/wakeup/
Signed-off-by: Kevin Hilman <khilman@ti.com>
diff --git a/arch/arm/mach-omap2/voltagedomains44xx_data.c b/arch/arm/mach-omap2/voltagedomains44xx_data.c
index 95e1ce5..9a17b5e 100644
--- a/arch/arm/mach-omap2/voltagedomains44xx_data.c
+++ b/arch/arm/mach-omap2/voltagedomains44xx_data.c
@@ -86,10 +86,15 @@
 	.vdd = &omap4_vdd_core_info,
 };
 
+static struct voltagedomain omap4_voltdm_wkup = {
+	.name = "wakeup",
+};
+
 static struct voltagedomain *voltagedomains_omap4[] __initdata = {
 	&omap4_voltdm_mpu,
 	&omap4_voltdm_iva,
 	&omap4_voltdm_core,
+	&omap4_voltdm_wkup,
 	NULL,
 };