Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
To:     Rob Herring <robh@kernel.org>,
        Alexandre Torgue <alexandre.torgue@foss.st.com>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>
CC:     <devicetree@vger.kernel.org>,
        <linux-stm32@st-md-mailman.stormreply.com>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-remoteproc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Subject: [PATCH 0/2] Add new IPCC mailbox to support the coprocessor detach on some stm32mp15x boards
Date:   Mon, 14 Jun 2021 18:49:38 +0200
Message-ID: <20210614164940.27153-1-arnaud.pouliquen@foss.st.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

Purpose:
  Add the IPCC channel 4 as "detach" mailbox to support the remoteproc the feature added in [1].

  The enable of this feature is a design choice. As consequence, the new mbox is declared
  only for stm32mp157c-ed1 & stm32mp15x-dkx boards maintained by ST Microelectronics.

Aim:
  Allow to send to the remote processor a HW signal on IPCC channel 4 when user space requests
  to detach the main processor from the remote processor (e.g. a reboot of the  Linux processor
  on a crash).

[1] https://patchwork.ozlabs.org/project/devicetree-bindings/cover/20210331073347.8293-1-arnaud.pouliquen@foss.st.com/

Arnaud Pouliquen (2):
  ARM: dts: stm32: Add coprocessor detach mbox on stm32mp157c-ed1 board
  ARM: dts: stm32: Add coprocessor detach mbox on stm32mp15x-dkx boards

 arch/arm/boot/dts/stm32mp157c-ed1.dts  | 4 ++--
 arch/arm/boot/dts/stm32mp15xx-dkx.dtsi | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

-- 
2.17.1