ARM: dts: stm32: Add coprocessor detach mbox on stm32mp15x-dkx boards

To support the detach feature, add a new mailbox channel to inform
the remote processor on a detach. This signal allows the remote processor
firmware to stop IPC communication and to reinitialize the resources for
a re-attach.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

diff --git a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
index 59f1884..06c11ba 100644 (file)
--- a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
@@ -470,8 +470,8 @@
 &m4_rproc {
        memory-region = <&retram>, <&mcuram>, <&mcuram2>, <&vdev0vring0>,
                        <&vdev0vring1>, <&vdev0buffer>;
-       mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>;
-       mbox-names = "vq0", "vq1", "shutdown";
+       mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>, <&ipcc 3>;
+       mbox-names = "vq0", "vq1", "shutdown", "detach";
        interrupt-parent = <&exti>;
        interrupts = <68 1>;
        status = "okay";