ARM: dts: am43xx-epos-evm: Keep DCDC3 regulator on in suspend to memory

When going to suspend to ram mode (or rtc-only mode), the DDR regulator
must be told to stay on, else this rail will go down when the PMIC_EN
signal is deasserted.

Signed-off-by: Mike Erdahl <m-erdahl@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index 7db5cf3..606b848 100644 (file)
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -620,6 +620,12 @@
                        regulator-name = "vdcdc3";
                        regulator-boot-on;
                        regulator-always-on;
+                       regulator-state-mem {
+                               regulator-on-in-suspend;
+                       };
+                       regulator-state-disk {
+                               regulator-off-in-suspend;
+                       };
                };
 
                dcdc4: regulator-dcdc4 {