From 907ed5dc3e5d48581b6868ff812be7827bc4fef9 Mon Sep 17 00:00:00 2001
From: Peng Fan <peng.fan@nxp.com>
Date: Mon, 23 May 2022 16:49:59 +0800
Subject: MLK-25894-1 dt-bindings: soc: add bindings for i.MX93 SRC

Add bindings for i.MX93 System Reset Controller(SRC). SRC supports
resets and power gating for mixes.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
---
 .../devicetree/bindings/soc/imx/fsl,imx93-src.yaml | 88 ++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml

(limited to 'Documentation/devicetree/bindings/soc')

diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml
new file mode 100644
index 000000000000..d45c1458b9c1
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/imx/fsl,imx93-src.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX9 System Reset Controller
+
+maintainers:
+  - Peng Fan <peng.fan@nxp.com>
+
+description: |
+  The System Reset Controller (SRC) is responsible for the generation of
+  all the system reset signals and boot argument latching.
+
+  Its main functions are as follows,
+  - Deals with all global system reset sources from other modules,
+    and generates global system reset.
+  - Responsible for power gating of MIXs (Slices) and their memory
+    low power control.
+
+properties:
+  compatible:
+    items:
+      - const: fsl,imx93-src
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  slice:
+    type: object
+    description: list of power domains provided by this controller.
+
+    patternProperties:
+      "power-domain@[0-9]$":
+        type: object
+        properties:
+
+          '#power-domain-cells':
+            const: 0
+
+          reg:
+            description: |
+              Power domain index. Valid values are defined in
+              include/dt-bindings/power/imx93-power.h for fsl,imx93-src
+            maxItems: 1
+
+          clocks:
+            description: |
+              A number of phandles to clocks that need to be enabled
+              during domain power-up sequencing to ensure reset
+              propagation into devices located inside this power domain.
+            minItems: 1
+            maxItems: 5
+
+        required:
+          - '#power-domain-cells'
+          - reg
+
+required:
+  - compatible
+  - reg
+  - slice
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx93-clock.h>
+    #include <dt-bindings/power/imx93-power.h>
+
+    src@44460000 {
+        compatible = "fsl,imx93-src", "syscon";
+        reg = <0x44460000 0x10000>;
+
+        slice {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                mediamix: power-domain@0 {
+                        reg = <IMX93_POWER_DOMAIN_MEDIAMIX>;
+                        #power-domain-cells = <0>;
+                        clocks = <&clk IMX93_CLK_MEDIA_AXI>,
+                                 <&clk IMX93_CLK_MEDIA_APB>;
+                };
+        };
+    };
-- 
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