[PATCH v6 1/2] dt-bindings: Add DT schema for Arm Mali Valhall GPU

[Nick Fan]

Add devicetree schema for Arm Mali Valhall GPU

Define a compatible string for the Mali Valhall GPU
for MediaTek's SoC platform.

Signed-off-by: Nick Fan <Nick.Fan at mediatek.com>
---
 .../bindings/gpu/arm,mali-valhall.yaml        | 201 ++++++++++++++++++
 1 file changed, 201 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpu/arm,mali-valhall.yaml

diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-valhall.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-valhall.yaml
new file mode 100644
index 000000000000..526384d1e3ff
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-valhall.yaml
@@ -0,0 +1,201 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2020 MediaTek Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpu/arm,mali-valhall.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM Mali Valhall GPU
+
+maintainers:
+  - Rob Herring <robh at kernel.org>
+
+properties:
+  $nodename:
+    pattern: '^gpu@[a-f0-9]+$'
+
+  compatible:
+    items:
+      - enum:
+          - mediatek,mt8192-mali
+      - const: arm,mali-valhall
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: Job interrupt
+      - description: MMU interrupt
+      - description: GPU interrupt
+
+  interrupt-names:
+    items:
+      - const: job
+      - const: mmu
+      - const: gpu
+
+  clocks:
+    minItems: 1
+
+  power-domains:
+    minItems: 1
+    maxItems: 5
+
+  mali-supply: true
+  sram-supply: true
+
+  operating-points-v2: true
+  opp-table: true
+
+  "#cooling-cells":
+    const: 2
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-names
+  - clocks
+
+additionalProperties: false
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt8192-mali
+    then:
+      properties:
+        power-domains:
+          minItems: 5
+          maxItems: 5
+
+        power-domain-names:
+          items:
+            - const: core0
+            - const: core1
+            - const: core2
+            - const: core3
+            - const: core4
+
+      required:
+        - sram-supply
+        - power-domains
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    gpu at 13000000 {
+        compatible = "mediatek,mt8192-mali", "arm,mali-valhall";
+        reg = <0x13000000 0x4000>;
+        interrupts =
+            <GIC_SPI 363 IRQ_TYPE_LEVEL_HIGH 0>,
+            <GIC_SPI 364 IRQ_TYPE_LEVEL_HIGH 0>,
+            <GIC_SPI 365 IRQ_TYPE_LEVEL_HIGH 0>;
+        interrupt-names =
+            "gpu",
+            "mmu",
+            "job";
+
+        clocks = <&mfgcfg 0>;
+
+        power-domains =
+            <&spm 4>,
+            <&spm 5>,
+            <&spm 6>,
+            <&spm 7>,
+            <&spm 8>;
+
+        operating-points-v2 = <&gpu_opp_table>;
+        mali-supply = <&mt6315_7_vbuck1>;
+        sram-supply = <&mt6359_vsram_others_ldo_reg>;
+        gpu_opp_table: opp_table {
+            compatible = "operating-points-v2";
+            opp-shared;
+
+            opp-358000000 {
+                opp-hz = /bits/ 64 <358000000>;
+                opp-microvolt = <606250>, <750000>;
+            };
+
+            opp-399000000 {
+                opp-hz = /bits/ 64 <399000000>;
+                opp-microvolt = <618750>, <750000>;
+            };
+
+            opp-440000000 {
+                opp-hz = /bits/ 64 <440000000>;
+                opp-microvolt = <631250>, <750000>;
+            };
+
+            opp-482000000 {
+                opp-hz = /bits/ 64 <482000000>;
+                opp-microvolt = <643750>, <750000>;
+            };
+
+            opp-523000000 {
+                opp-hz = /bits/ 64 <523000000>;
+                opp-microvolt = <656250>, <750000>;
+            };
+
+            opp-564000000 {
+                opp-hz = /bits/ 64 <564000000>;
+                opp-microvolt = <668750>, <750000>;
+            };
+
+            opp-605000000 {
+                opp-hz = /bits/ 64 <605000000>;
+                opp-microvolt = <681250>, <750000>;
+            };
+
+            opp-647000000 {
+                opp-hz = /bits/ 64 <647000000>;
+                opp-microvolt = <693750>, <750000>;
+            };
+
+            opp-688000000 {
+                opp-hz = /bits/ 64 <688000000>;
+                opp-microvolt = <706250>, <750000>;
+            };
+
+            opp-724000000 {
+                opp-hz = /bits/ 64 <724000000>;
+                opp-microvolt = <725000>, <750000>;
+            };
+
+            opp-748000000 {
+                opp-hz = /bits/ 64 <748000000>;
+                opp-microvolt = <737500>, <750000>;
+            };
+
+            opp-772000000 {
+                opp-hz = /bits/ 64 <772000000>;
+                opp-microvolt = <750000>, <750000>;
+            };
+
+            opp-795000000 {
+                opp-hz = /bits/ 64 <795000000>;
+                opp-microvolt = <762500>, <762500>;
+            };
+
+            opp-819000000 {
+                opp-hz = /bits/ 64 <819000000>;
+                opp-microvolt = <775000>, <775000>;
+            };
+
+            opp-843000000 {
+                opp-hz = /bits/ 64 <843000000>;
+                opp-microvolt = <787500>, <787500>;
+            };
+
+            opp-866000000 {
+                opp-hz = /bits/ 64 <866000000>;
+                opp-microvolt = <800000>, <800000>;
+            };
+        };
+    };
+...
-- 
2.18.0