[PATCH v7 02/13] dt-bindings: Add bindings for peci-aspeed

From: Iwona Winiarska
Date: Wed Feb 02 2022 - 09:52:33 EST


Add device tree bindings for the peci-aspeed controller driver.

Co-developed-by: Jae Hyun Yoo <jae.hyun.yoo@xxxxxxxxxxxxxxx>
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@xxxxxxxxxxxxxxx>
Signed-off-by: Iwona Winiarska <iwona.winiarska@xxxxxxxxx>
Reviewed-by: Joel Stanley <joel@xxxxxxxxx>
---
.../devicetree/bindings/peci/peci-aspeed.yaml | 72 +++++++++++++++++++
1 file changed, 72 insertions(+)
create mode 100644 Documentation/devicetree/bindings/peci/peci-aspeed.yaml

diff --git a/Documentation/devicetree/bindings/peci/peci-aspeed.yaml b/Documentation/devicetree/bindings/peci/peci-aspeed.yaml
new file mode 100644
index 000000000000..1e68a801a92a
--- /dev/null
+++ b/Documentation/devicetree/bindings/peci/peci-aspeed.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/peci/peci-aspeed.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Aspeed PECI Bus Device Tree Bindings
+
+maintainers:
+ - Iwona Winiarska <iwona.winiarska@xxxxxxxxx>
+ - Jae Hyun Yoo <jae.hyun.yoo@xxxxxxxxxxxxxxx>
+
+allOf:
+ - $ref: peci-controller.yaml#
+
+properties:
+ compatible:
+ enum:
+ - aspeed,ast2400-peci
+ - aspeed,ast2500-peci
+ - aspeed,ast2600-peci
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ description:
+ Clock source for PECI controller. Should reference the external
+ oscillator clock.
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ cmd-timeout-ms:
+ minimum: 1
+ maximum: 1000
+ default: 1000
+
+ clock-frequency:
+ description:
+ The desired operation frequency of PECI controller in Hz.
+ minimum: 2000
+ maximum: 2000000
+ default: 1000000
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/ast2600-clock.h>
+ peci-controller@1e78b000 {
+ compatible = "aspeed,ast2600-peci";
+ reg = <0x1e78b000 0x100>;
+ interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&syscon ASPEED_CLK_GATE_REF0CLK>;
+ resets = <&syscon ASPEED_RESET_PECI>;
+ cmd-timeout-ms = <1000>;
+ clock-frequency = <1000000>;
+ };
+...
--
2.34.1