[PATCH v3 01/14] dt-bindings: spi: Document the IBM Power SPI controller

Eddie James
2024-04-25T21:37:21Z

The IBM Power chips have a basic SPI controller. Document it.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
---
.../devicetree/bindings/spi/ibm,p10-spi.yaml | 56 +++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 Documentation/devicetree/bindings/spi/ibm,p10-spi.yaml

diff --git a/Documentation/devicetree/bindings/spi/ibm,p10-spi.yaml b/Documentation/devicetree/bindings/spi/ibm,p10-spi.yaml
new file mode 100644
index 000000000000..9bf57b621c1f
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/ibm,p10-spi.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/ibm,p10-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: IBM SPI Controller
+
+maintainers:
+ - Eddie James <eajames@linux.ibm.com>
+
+description:
+ A basic SPI controller found on IBM Power chips, accessed over FSI. This
+ node will always be a child node of an ibm,fsi2spi node.
+
+properties:
+ compatible:
+ enum:
+ - ibm,p10-spi
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+allOf:
+ - $ref: spi-controller.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ fsi2spi@1c00 {
+ compatible = "ibm,fsi2spi";
+ reg = <0x1c00 0x400>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ spi@0 {
+ compatible = "ibm,p10-spi";
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eeprom@0 {
+ compatible = "atmel,at25";
+ reg = <0>;
+ size = <0x80000>;
+ address-width = <24>;
+ pagesize = <256>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+ };
--
2.39.3