[PATCH V6 1/4] dt-bindings: mailbox: imx-mu: add SCU MU support

From: peng . fan
Date: Wed Mar 04 2020 - 00:56:03 EST


From: Peng Fan <peng.fan@xxxxxxx>

i.MX8/8X SCU MU is dedicated for communication between SCU
and Cortex-A cores from hardware design, it could not be reused
for other purpose. To use SCU MU more effectivly, add "fsl,imx8-scu-mu"
compatile to support fast IPC.

Reviewed-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
---
V6:
Add R-b tag
V5:
None
V4:
None
V3:
New patch

Documentation/devicetree/bindings/mailbox/fsl,mu.txt | 2 ++
1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.txt b/Documentation/devicetree/bindings/mailbox/fsl,mu.txt
index 9c43357c5924..31486c9f6443 100644
--- a/Documentation/devicetree/bindings/mailbox/fsl,mu.txt
+++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.txt
@@ -23,6 +23,8 @@ Required properties:
be included together with SoC specific compatible.
There is a version 1.0 MU on imx7ulp, use "fsl,imx7ulp-mu"
compatible to support it.
+ To communicate with i.MX8 SCU, "fsl,imx8-mu-scu" could be
+ used for fast IPC
- reg : Should contain the registers location and length
- interrupts : Interrupt number. The interrupt specifier format depends
on the interrupt controller parent.
--
2.16.4