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

Message ID 20201106105627.31061-3-qiangqing.zhang@nxp.com
State New
Headers show
Series can: flexcan: add stop mode support for i.MX8QM | expand

Commit Message

Joakim Zhang Nov. 6, 2020, 10:56 a.m. UTC
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(+)
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Patch

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>;
     };