lkml.org 
[lkml]   [2022]   [Nov]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v7 06/17] dt-bindings: mfd: amd,pensando-elbasr: Add AMD Pensando Elba System Resource chip
Date
Add support for the AMD Pensando Elba SoC System Resource chip
using the SPI interface.

Signed-off-by: Brad Larson <blarson@amd.com>
---

v7:
- Use system-controller for the device with four chip-selects
connected over spi.
- Delete child by moving reset-controller into the parent.
- Updated and used dtschema-2022.11 and yamllint-1.28.0

v6:
- Expand description, rename nodes and change compatible usage

v5:
- Change to AMD Pensando instead of Pensando

v4:
- Change Maintained to Supported

.../bindings/mfd/amd,pensando-elbasr.yaml | 74 +++++++++++++++++++
1 file changed, 74 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/amd,pensando-elbasr.yaml

diff --git a/Documentation/devicetree/bindings/mfd/amd,pensando-elbasr.yaml b/Documentation/devicetree/bindings/mfd/amd,pensando-elbasr.yaml
new file mode 100644
index 000000000000..ac44d7d0a91a
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/amd,pensando-elbasr.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/amd,pensando-elbasr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMD Pensando Elba SoC Resource Controller bindings
+
+description: |
+ AMD Pensando Elba SoC Resource Controller functions are
+ accessed with four chip-selects. Reset control is on CS0.
+
+maintainers:
+ - Brad Larson <blarson@amd.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - amd,pensando-elbasr
+
+ "#reset-cells":
+ const: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - spi-max-frequency
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ num-cs = <4>;
+ status = "okay";
+
+ rstc: system-controller@0 {
+ compatible = "amd,pensando-elbasr";
+ reg = <0>;
+ spi-max-frequency = <12000000>;
+ #reset-cells = <1>;
+ };
+
+ system-controller@1 {
+ compatible = "amd,pensando-elbasr";
+ reg = <1>;
+ spi-max-frequency = <12000000>;
+ };
+
+ system-controller@2 {
+ compatible = "amd,pensando-elbasr";
+ reg = <2>;
+ spi-max-frequency = <12000000>;
+ interrupt-parent = <&porta>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ };
+
+ system-controller@3 {
+ compatible = "amd,pensando-elbasr";
+ reg = <3>;
+ spi-max-frequency = <12000000>;
+ };
+ };
--
2.17.1
\
 
 \ /
  Last update: 2022-11-16 02:05    [W:0.110 / U:0.352 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site