linux-kernel - [PATCH 1/2] dt-bindings: mailbox: fsl,mu: add new tx doorbell channel

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Message-Id: <20230917-imx95-mbox-v1-1-440245287356@nxp.com>
Date:   Sun, 17 Sep 2023 20:43:50 +0800
From:   "Peng Fan (OSS)" <peng.fan@....nxp.com>
To:     Jassi Brar <jassisinghbrar@...il.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Dong Aisheng <aisheng.dong@....com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: [PATCH 1/2] dt-bindings: mailbox: fsl,mu: add new tx doorbell
 channel

From: Peng Fan <peng.fan@....com>

Add new tx doorbell channel for i.MX95 SCMI mailbox usage.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 Documentation/devicetree/bindings/mailbox/fsl,mu.yaml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
index 191c1ce15009..12e7a7d536a3 100644
--- a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
+++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
@@ -72,9 +72,9 @@ properties:
       type      : Channel type
       channel   : Channel number
 
-      This MU support 5 type of unidirectional channels, each type
+      This MU support 6 type of unidirectional channels, each type
       has 4 channels except RST channel which only has 1 channel.
-      A total of 17 channels.  Following types are
+      A total of 21 channels.  Following types are
       supported:
       0 - TX channel with 32bit transmit register and IRQ transmit
           acknowledgment support.
@@ -82,6 +82,7 @@ properties:
       2 - TX doorbell channel. Without own register and no ACK support.
       3 - RX doorbell channel.
       4 - RST channel
+      5 - Tx doorbell channel. With S/W ACK from the other side.
     const: 2
 
   clocks:

-- 
2.37.1