[PATCH V5 2/5] dt-bindings: can: flexcan: add fsl,scu-index property to indicate a resource

From: Joakim Zhang <qiangqing.zhang@nxp.com>
To: mkl@pengutronix.de, robh+dt@kernel.org, shawnguo@kernel.org,
	s.hauer@pengutronix.de
Cc: kernel@pengutronix.de, linux-imx@nxp.com,
	linux-can@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH V5 2/5] dt-bindings: can: flexcan: add fsl,scu-index property to indicate a resource
Date: Fri,  6 Nov 2020 18:56:24 +0800	[thread overview]
Message-ID: <20201106105627.31061-3-qiangqing.zhang@nxp.com> (raw)
In-Reply-To: <20201106105627.31061-1-qiangqing.zhang@nxp.com>

For SoCs with SCU support, need setup stop mode via SCU firmware,
so this property can help indicate a resource in SCU firmware.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
---
 .../devicetree/bindings/net/can/fsl,flexcan.yaml      | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml b/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
index 8f4db883e16b..2631dad8f85f 100644
--- a/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
+++ b/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
@@ -105,6 +105,16 @@ properties:
     description:
       Enable CAN remote wakeup.
 
+  fsl,scu-index:
+    description: |
+      The scu index of CAN instance.
+      For SoCs with SCU support, need setup stop mode via SCU firmware, so this
+      property can help indicate a resource. It supports up to 3 CAN instances
+      now.
+    $ref: /schemas/types.yaml#/definitions/uint8
+    minimum: 0
+    maximum: 2
+
 required:
   - compatible
   - reg
@@ -132,4 +142,5 @@ examples:
         clocks = <&clks 1>, <&clks 2>;
         clock-names = "ipg", "per";
         fsl,stop-mode = <&gpr 0x34 28>;
+        fsl,scu-index = /bits/ 8 <1>;
     };
-- 
2.17.1

