[RESEND,v6,4/8] dt-bindings: clock: mediatek: Add clock driver bindings for MT6795

Commit Message

AngeloGioacchino Del Regno Sept. 21, 2022, 9:14 a.m. UTC

Add the bindings for the clock drivers of the MediaTek Helio X10
MT6795 SoC.

Signed-off-by: AngeloGioacchino Del Regno <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
---
 .../bindings/clock/mediatek,mt6795-clock.yaml | 66 +++++++++++++++++++
 .../clock/mediatek,mt6795-sys-clock.yaml      | 54 +++++++++++++++
 2 files changed, 120 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mt6795-clock.yaml
 create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mt6795-sys-clock.yaml

Patch

diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt6795-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt6795-clock.yaml
new file mode 100644
index 000000000000..04469eabc8fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt6795-clock.yaml
@@ -0,0 +1,66 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt6795-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Functional Clock Controller for MT6795
+
+maintainers:
+  - AngeloGioacchino Del Regno <[e-mail]>
+  - Chun-Jie Chen <[e-mail]>
+
+description: |
+  The clock architecture in MediaTek like below
+  PLLs -->
+          dividers -->
+                      muxes
+                           -->
+                              clock gate
+
+  The devices provide clock gate control in different IP blocks.
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt6795-mfgcfg
+      - mediatek,mt6795-vdecsys
+      - mediatek,mt6795-vencsys
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        mfgcfg: clock-controller@13000000 {
+            compatible = "mediatek,mt6795-mfgcfg";
+            reg = <0 0x13000000 0 0x1000>;
+            #clock-cells = <1>;
+        };
+
+        vdecsys: clock-controller@16000000 {
+            compatible = "mediatek,mt6795-vdecsys";
+            reg = <0 0x16000000 0 0x1000>;
+            #clock-cells = <1>;
+        };
+
+        vencsys: clock-controller@18000000 {
+            compatible = "mediatek,mt6795-vencsys";
+            reg = <0 0x18000000 0 0x1000>;
+            #clock-cells = <1>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt6795-sys-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt6795-sys-clock.yaml
new file mode 100644
index 000000000000..378b761237d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt6795-sys-clock.yaml
@@ -0,0 +1,54 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt6795-sys-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek System Clock Controller for MT6795
+
+maintainers:
+  - AngeloGioacchino Del Regno <[e-mail]>
+  - Chun-Jie Chen <[e-mail]>
+
+description:
+  The Mediatek system clock controller provides various clocks and system
+  configuration like reset and bus protection on MT6795.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - mediatek,mt6795-apmixedsys
+          - mediatek,mt6795-infracfg
+          - mediatek,mt6795-pericfg
+          - mediatek,mt6795-topckgen
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+  '#reset-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        topckgen: clock-controller@10000000 {
+            compatible = "mediatek,mt6795-topckgen", "syscon";
+            reg = <0 0x10000000 0 0x1000>;
+            #clock-cells = <1>;
+        };
+    };