linux-kernel - [PATCH v2 1/3] dt-bindings: reset: add schema for imx8ulp SIM reset

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Message-Id: <20240609125901.76274-2-laurentiumihalcea111@gmail.com>
Date: Sun,  9 Jun 2024 15:58:59 +0300
From: Laurentiu Mihalcea <laurentiumihalcea111@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Liu Ying <victor.liu@....com>,
	Sascha Hauer <s.hauer@...gutronix.de>
Cc: laurentiu.mihalcea@....com,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/3] dt-bindings: reset: add schema for imx8ulp SIM reset

From: Laurentiu Mihalcea <laurentiu.mihalcea@....com>

Add schema for imx8ulp's SIM reset controller.

Signed-off-by: Liu Ying <victor.liu@....com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
---
 .../bindings/reset/nxp,imx8ulp-sim-reset.yaml | 68 +++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/nxp,imx8ulp-sim-reset.yaml

diff --git a/Documentation/devicetree/bindings/reset/nxp,imx8ulp-sim-reset.yaml b/Documentation/devicetree/bindings/reset/nxp,imx8ulp-sim-reset.yaml
new file mode 100644
index 000000000000..e7faec55ff36
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/nxp,imx8ulp-sim-reset.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/nxp,imx8ulp-sim-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX8ULP System Integration Module Reset Controller
+
+maintainers:
+  - Liu Ying <victor.liu@....com>
+
+description: |
+  Some instances of i.MX8ULP's SIM may offer control
+  over the reset of some components of a certain domain
+  (e.g: AVD-SIM).
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - nxp,imx8ulp-avd-sim-reset
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  '#reset-cells':
+    const: 1
+
+  mux-controller:
+    $ref: ../mux/reg-mux.yaml
+
+required:
+  - compatible
+  - reg
+  - '#reset-cells'
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: nxp,imx8ulp-avd-sim-reset
+    then:
+      required:
+        - mux-controller
+        - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8ulp-clock.h>
+    syscon@...50000 {
+      compatible = "nxp,imx8ulp-avd-sim-reset", "syscon";
+      reg = <0x2da50000 0x38>;
+      clocks = <&pcc5 IMX8ULP_CLK_AVD_SIM>;
+      #reset-cells = <1>;
+
+      mux-controller {
+        compatible = "mmio-mux";
+        #mux-control-cells = <1>;
+        mux-reg-masks = <0x8 0x00000200>;
+      };
+    };
-- 
2.34.1