diff mbox series

[v9,2/3] dt-bindings: mfd: Add compatible string for UART support

Message ID 20221205001932.v9.2.I9e018ecb8bdf341648cb64417085978ff0d22a46@changeid
State New
Headers
Series [v9,1/3] platform/chrome: cros_ec_uart: Add cros-ec-uart transport layer |

Commit Message

Mark Hasemeyer Dec. 5, 2022, 7:20 a.m. UTC 
  From: Bhanu Prakash Maiya <bhanumaiya@chromium.org>

Add a compatible string to support the UART implementation of the cros
ec interface. The driver does not support the reg and interrupt
properties, so exempt them from being required for UART compatible nodes.

Signed-off-by: Bhanu Prakash Maiya <bhanumaiya@chromium.org>
Co-developed-by: Mark Hasemeyer <markhas@chromium.org>
Signed-off-by: Mark Hasemeyer <markhas@chromium.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---

Changes in v9:
- Rebase onto for-next
- Update node-name from uart0 to serial
- Remove reg and interrupt property requirement for UART compatible
  nodes.
- Update authorship

Changes in v8:
- Update commit message

Changes in v7:
- No change

Changes in v6:
- No change

Changes in v5:
- No change

Changes in v4:
- Changes in commit message.

Changes in v3:
- Rebased changes on google,cros-ec.yaml

Changes in v2:
- No change

---
 .../bindings/mfd/google,cros-ec.yaml          | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
index 3d5efa5578d1b..cdf1d719efe9d 100644
--- a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
+++ b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
@@ -33,6 +33,9 @@  properties:
       - description:
           For implementations of the EC connected through RPMSG.
         const: google,cros-ec-rpmsg
+      - description:
+          For implementations of the EC connected through UART.
+        const: google,cros-ec-uart
 
   controller-data: true
 
@@ -187,6 +190,15 @@  allOf:
       properties:
         mediatek,rpmsg-name: false
 
+  - if:
+      properties:
+        compatible:
+          not:
+            contains:
+              enum:
+                - google,cros-ec-rpmsg
+                - google,cros-ec-uart
+    then:
       required:
         - reg
         - interrupts
@@ -299,4 +311,12 @@  examples:
         vdd-supply = <&pp3300_fp_mcu>;
       };
     };
+
+  # Example for UART
+  - |
+    serial {
+        cros-ec {
+            compatible = "google,cros-ec-uart";
+        };
+    };
 ...