From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:27:49 +0200
Subject: Adding upstream version 6.6.15.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../bindings/clock/renesas,rzg2l-cpg.yaml          | 88 ++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml

(limited to 'Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml')

diff --git a/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml b/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
new file mode 100644
index 0000000000..fe2fba18ae
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/renesas,rzg2l-cpg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/{G2L,V2L,V2M} Clock Pulse Generator / Module Standby Mode
+
+maintainers:
+  - Geert Uytterhoeven <geert+renesas@glider.be>
+
+description: |
+  On Renesas RZ/{G2L,V2L}-alike SoC's, the CPG (Clock Pulse Generator) and Module
+  Standby Mode share the same register block. On RZ/V2M, the functionality is
+  similar, but does not have Clock Monitor Registers.
+
+  They provide the following functionalities:
+    - The CPG block generates various core clocks,
+    - The Module Standby Mode block provides two functions:
+        1. Module Standby, providing a Clock Domain to control the clock supply
+           to individual SoC devices,
+        2. Reset Control, to perform a software reset of individual SoC devices.
+
+properties:
+  compatible:
+    enum:
+      - renesas,r9a07g043-cpg # RZ/G2UL{Type-1,Type-2} and RZ/Five
+      - renesas,r9a07g044-cpg # RZ/G2{L,LC}
+      - renesas,r9a07g054-cpg # RZ/V2L
+      - renesas,r9a09g011-cpg # RZ/V2M
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    description:
+      Clock source to CPG can be either from external clock input (EXCLK) or
+      crystal oscillator (XIN/XOUT).
+    const: extal
+
+  '#clock-cells':
+    description: |
+      - For CPG core clocks, the two clock specifier cells must be "CPG_CORE"
+        and a core clock reference, as defined in
+        <dt-bindings/clock/r9a0*-cpg.h>,
+      - For module clocks, the two clock specifier cells must be "CPG_MOD" and
+        a module number, as defined in <dt-bindings/clock/r9a0*-cpg.h>.
+    const: 2
+
+  '#power-domain-cells':
+    description:
+      SoC devices that are part of the CPG/Module Standby Mode Clock Domain and
+      can be power-managed through Module Standby should refer to the CPG device
+      node in their "power-domains" property, as documented by the generic PM
+      Domain bindings in Documentation/devicetree/bindings/power/power-domain.yaml.
+    const: 0
+
+  '#reset-cells':
+    description:
+      The single reset specifier cell must be the module number, as defined in
+      <dt-bindings/clock/r9a0*-cpg.h>.
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#clock-cells'
+  - '#power-domain-cells'
+  - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    cpg: clock-controller@11010000 {
+            compatible = "renesas,r9a07g044-cpg";
+            reg = <0x11010000 0x10000>;
+            clocks = <&extal_clk>;
+            clock-names = "extal";
+            #clock-cells = <2>;
+            #power-domain-cells = <0>;
+            #reset-cells = <1>;
+    };
-- 
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