[PATCH V3 1/7] dt-bindings: soc: add i.MX93 SRC
From: Peng Fan (OSS)
Date: Sun Jun 05 2022 - 21:49:00 EST
From: Peng Fan <peng.fan@xxxxxxx>
Add bindings for i.MX93 System Reset Controller(SRC). SRC supports
resets and power gating for mixes.
Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
---
.../bindings/power/fsl,imx93-src.yaml | 96 +++++++++++++++++++
include/dt-bindings/power/fsl,imx93-power.h | 11 +++
2 files changed, 107 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/fsl,imx93-src.yaml
create mode 100644 include/dt-bindings/power/fsl,imx93-power.h
diff --git a/Documentation/devicetree/bindings/power/fsl,imx93-src.yaml b/Documentation/devicetree/bindings/power/fsl,imx93-src.yaml
new file mode 100644
index 000000000000..880500a841f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/fsl,imx93-src.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/fsl,imx93-src.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX93 System Reset Controller
+
+maintainers:
+ - Peng Fan <peng.fan@xxxxxxx>
+
+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
+
+ slices:
+ type: object
+ description: list of power domains provided by this controller.
+
+ properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ patternProperties:
+ "power-domain@[0-9]$":
+ $ref: /schemas/power/power-domain.yaml#
+
+ 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
+ - slices
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx93-clock.h>
+ #include <dt-bindings/power/fsl,imx93-power.h>
+
+ system-controller@44460000 {
+ compatible = "fsl,imx93-src", "syscon";
+ reg = <0x44460000 0x10000>;
+
+ slices {
+ #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>;
+ };
+ };
+ };
diff --git a/include/dt-bindings/power/fsl,imx93-power.h b/include/dt-bindings/power/fsl,imx93-power.h
new file mode 100644
index 000000000000..27fb7df80f93
--- /dev/null
+++ b/include/dt-bindings/power/fsl,imx93-power.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ * Copyright 2022 NXP
+ */
+
+#ifndef __DT_BINDINGS_IMX93_POWER_H__
+#define __DT_BINDINGS_IMX93_POWER_H__
+
+#define IMX93_POWER_DOMAIN_MEDIAMIX 0
+
+#endif
--
2.25.1