ARM: dts: AM33xx: Add ti,mbox-send-noirq to wkup_m3 mailbox

Add ti,mbox-send-noirq to wkup_m3 mailbox so that messages using
wkup_m3 mailbox are sent without triggering any further interrupts.
This is needed to achieve lower power numbers during CPU idle on
AM33xx.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
[s-anna@ti.com: revise commit description]
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index d23e252..ee26e2a 100644 (file)
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -399,6 +399,7 @@
                        ti,mbox-num-users = <4>;
                        ti,mbox-num-fifos = <8>;
                        mbox_wkupm3: wkup_m3 {
+                               ti,mbox-send-noirq;
                                ti,mbox-tx = <0 0 0>;
                                ti,mbox-rx = <0 0 3>;
                        };