linux-kernel - [PATCH v1 3/3] dt-bindings: mfd: sophgo: add misc MFD for Sophgo CV1800 series SoC.

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Date: Fri, 29 Dec 2023 17:06:43 +0800
From: Jingbao Qiu <qiujingbao.dlmu@...il.com>
To: a.zummo@...ertech.it,
	alexandre.belloni@...tlin.com,
	robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	conor+dt@...nel.org,
	paul.walmsley@...ive.com,
	palmer@...belt.com,
	aou@...s.berkeley.edu
Cc: linux-rtc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	dlan@...too.org,
	inochiama@...look.com,
	Jingbao Qiu <qiujingbao.dlmu@...il.com>
Subject: [PATCH v1 3/3] dt-bindings: mfd: sophgo: add misc MFD for Sophgo CV1800 series SoC.

Add devicetree binding to describe the MFD for Sophgo CV1800 SoC.

Signed-off-by: Jingbao Qiu <qiujingbao.dlmu@...il.com>
---
This patch depends on the clk driver
Clk driver link:
https://lore.kernel.org/all/IA1PR20MB49539CDAD9A268CBF6CA184BBB9FA@IA1PR20MB4953.namprd20.prod.outlook.com/

 .../bindings/mfd/sophgo,cv1800-misc.yaml      | 69 +++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/sophgo,cv1800-misc.yaml

diff --git a/Documentation/devicetree/bindings/mfd/sophgo,cv1800-misc.yaml b/Documentation/devicetree/bindings/mfd/sophgo,cv1800-misc.yaml
new file mode 100644
index 000000000000..6fd574a2a945
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sophgo,cv1800-misc.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/sophgo,cv1800-misc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo CV1800 SoC MISC hardware block
+
+maintainers:
+  - Jingbao Qiu <qiujingbao.dlmu@...il.com>
+
+description:
+  This hardware block is an independently powered module within
+  the CV1800 SoC. This hardware block contains RTC, Power-On-Reset/POR.
+
+properties:
+  compatible:
+    items:
+      - const: sophgo,cv1800-misc
+      - const: syscon
+      - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+  rtc:
+    # Child node
+    $ref: /schemas/rtc/sophgo,cv1800-rtc.yaml
+    type: object
+    description:
+      RTC for the SoC. This child node definition
+      should follow the bindings specified in
+      Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml.
+
+  por:
+    # Child node
+    $ref: /schemas/power/sophgo,cv1800-por.yaml
+    type: object
+    description:
+      Power-On-Reset/POR for the SoC. This child node definition
+      should follow the bindings specified in
+      Documentation/devicetree/bindings/power/sophgo,cv1800-por.yaml.
+
+required:
+  - compatible
+  - reg
+  - rtc
+  - por
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    misc@...5000 {
+      compatible = "sophgo,cv1800-misc", "syscon", "simple-mfd";
+      reg = <0x05025000 0x2000>;
+
+      rtc  {
+        compatible = "sophgo,cv1800-rtc";
+        interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clk 15>;
+      };
+
+      por  {
+        compatible = "sophgo,cv1800-por";
+      };
+    };
-- 
2.25.1