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-rw-r--r--Documentation/devicetree/bindings/firmware/arm,scmi.yaml54
1 files changed, 52 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index 4591523b51..7de2c29606 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -247,6 +247,37 @@ properties:
reg:
const: 0x18
+ protocol@19:
+ type: object
+ allOf:
+ - $ref: '#/$defs/protocol-node'
+ - $ref: /schemas/pinctrl/pinctrl.yaml
+
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ const: 0x19
+
+ patternProperties:
+ '-pins$':
+ type: object
+ allOf:
+ - $ref: /schemas/pinctrl/pincfg-node.yaml#
+ - $ref: /schemas/pinctrl/pinmux-node.yaml#
+ unevaluatedProperties: false
+
+ description:
+ A pin multiplexing sub-node describes how to configure a
+ set of pins in some desired function.
+ A single sub-node may define several pin configurations.
+ This sub-node is using the default pinctrl bindings to configure
+ pin multiplexing and using SCMI protocol to apply a specified
+ configuration.
+
+ required:
+ - reg
+
additionalProperties: false
$defs:
@@ -355,7 +386,7 @@ examples:
scmi_dvfs: protocol@13 {
reg = <0x13>;
- #clock-cells = <1>;
+ #power-domain-cells = <1>;
mboxes = <&mhuB 1 0>,
<&mhuB 1 1>;
@@ -401,6 +432,25 @@ examples:
scmi_powercap: protocol@18 {
reg = <0x18>;
};
+
+ scmi_pinctrl: protocol@19 {
+ reg = <0x19>;
+
+ i2c2-pins {
+ groups = "g_i2c2_a", "g_i2c2_b";
+ function = "f_i2c2";
+ };
+
+ mdio-pins {
+ groups = "g_avb_mdio";
+ drive-strength = <24>;
+ };
+
+ keys_pins: keys-pins {
+ pins = "gpio_5_17", "gpio_5_20", "gpio_5_22", "gpio_2_1";
+ bias-pull-up;
+ };
+ };
};
};
@@ -468,7 +518,7 @@ examples:
reg = <0x13>;
linaro,optee-channel-id = <1>;
shmem = <&cpu_optee_lpri0>;
- #clock-cells = <1>;
+ #power-domain-cells = <1>;
};
scmi_clk0: protocol@14 {