[PATCH v5 1/4] dt-bindings: mfd: Add bindings for Ampere Altra SMPro MFD driver

Quan Nguyen
2021-07-13T06:00:28Z

Adds device tree bindings for SMPro MFD driver found on the Mt.Jade
hardware reference platform with Ampere's Altra Processor family.

The SMpro co-processor on Ampere Altra processor family is to monitor
and report various data included hwmon-related info, RAS errors, and
other miscellaneous information.

Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
---
Changes in v5:
+ Dropped ../bindings/hwmon/ampere,ac01-hwmon.yaml file [Quan]
+ Removed patternProperties section and child DT nodes in example
section [Quan]
+ Revised commit message [Quan]

Changes in v4:
+ Revised the commit message to clarify how the specific info will
be handled commented by Rob.

Changes in v3:
+ Supported list of compatible string [Rob]
+ Introduced reg property in DT to specify reg offset [Rob]
+ Updated description and other minor changes in yaml file [Rob]

Changes in v2:
+ Changed "ampere,ac01-smpro" to "ampere,smpro" [Quan]

.../devicetree/bindings/mfd/ampere,smpro.yaml | 52 +++++++++++++++++++
1 file changed, 52 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/ampere,smpro.yaml

diff --git a/Documentation/devicetree/bindings/mfd/ampere,smpro.yaml b/Documentation/devicetree/bindings/mfd/ampere,smpro.yaml
new file mode 100644
index 000000000000..8b48747e5de3
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/ampere,smpro.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/ampere,smpro.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ampere Altra SMPro firmware driver
+
+maintainers:
+ - Quan Nguyen <quan@os.amperecomputing.com>
+
+description: |
+ Ampere Altra SMPro firmware may contain different blocks like hardware
+ monitoring, error monitoring and other miscellaneous features.
+
+properties:
+ compatible:
+ enum:
+ - ampere,smpro
+
+ reg:
+ description:
+ I2C device address.
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+required:
+ - "#address-cells"
+ - "#size-cells"
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ smpro at 4f {
+ compatible = "ampere,smpro";
+ reg = <0x4f>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
--
2.28.0