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ARM: dts: stm32: Add missing detach mailbox for DHCOM SoM

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[ Upstream commit deb7edbc27a6ec4d8f5edfd8519b7ed13cbd2a52 ]

Add missing "detach" mailbox to this board to permit the CPU 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.

Without this mailbox, detach is not possible and kernel log contains the
following warning to, so make sure all the STM32MP15xx platform DTs are
in sync regarding the mailboxes to fix the detach issue and the warning:
"
stm32-rproc 10000000.m4: mbox_request_channel_byname() could not locate channel named "detach"
"

Fixes: 6257dfc1c4 ("ARM: dts: stm32: Add coprocessor detach mbox on stm32mp15x-dkx boards")
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Marek Vasut 2023-07-11 15:09:07 +02:00 committed by Greg Kroah-Hartman
parent e3c7b7ce7c
commit 0765a80c16
1 changed files with 2 additions and 2 deletions
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4
arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi
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@ -416,8 +416,8 @@ &iwdg2 {
&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";