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authorBhanu Prakash Maiya <bhanumaiya@chromium.org>2022-12-07 20:40:12 +0300
committerLee Jones <lee@kernel.org>2023-02-22 11:25:51 +0300
commit0c8884fe34bb3e2d739c883000691bb665c01843 (patch)
treee7cc1545c741758792dc7cc50782040b0e192348 /Documentation/devicetree
parent8cc5e62bae28d02f706a6abc8fd804609579964c (diff)
downloadlinux-0c8884fe34bb3e2d739c883000691bb665c01843.tar.xz
dt-bindings: mfd: cros-ec: Add compatible string for UART support
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> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221207104005.v10.2.I9e018ecb8bdf341648cb64417085978ff0d22a46@changeid
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/mfd/google,cros-ec.yaml20
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
index 3d5efa5578d1..cdf1d719efe9 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";
+ };
+ };
...