dt-bindings: clock: Add Qcom SM6115 GPUCC

Add device tree bindings for graphics clock controller for Qualcomm
Technology Inc's SM6115 SoCs.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230208091340.124641-10-konrad.dybcio@linaro.org

Documentation/devicetree/bindings/clock/qcom,sm6115-gpucc.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm6115-gpucc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Graphics Clock & Reset Controller on SM6115
+
+maintainers:
+  - Konrad Dybcio <konrad.dybcio@linaro.org>
+
+description: |
+  Qualcomm graphics clock control module provides clocks, resets and power
+  domains on Qualcomm SoCs.
+
+  See also:: include/dt-bindings/clock/qcom,sm6115-gpucc.h
+
+properties:
+  compatible:
+    enum:
+      - qcom,sm6115-gpucc
+
+  clocks:
+    items:
+      - description: Board XO source
+      - description: GPLL0 main branch source
+      - description: GPLL0 main div source
+
+required:
+  - compatible
+  - clocks
+
+allOf:
+  - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-sm6115.h>
+    #include <dt-bindings/clock/qcom,rpmcc.h>
+
+    soc {
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        clock-controller@5990000 {
+            compatible = "qcom,sm6115-gpucc";
+            reg = <0x05990000 0x9000>;
+            clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
+                     <&gcc GCC_GPU_GPLL0_CLK_SRC>,
+                     <&gcc GCC_GPU_GPLL0_DIV_CLK_SRC>;
+            #clock-cells = <1>;
+            #reset-cells = <1>;
+            #power-domain-cells = <1>;
+        };
+    };
+...

include/dt-bindings/clock/qcom,sm6115-gpucc.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023, Linaro Limited
+ */
+
+#ifndef _DT_BINDINGS_CLK_QCOM_GPU_CC_SM6115_H
+#define _DT_BINDINGS_CLK_QCOM_GPU_CC_SM6115_H
+
+/* GPU_CC clocks */
+#define GPU_CC_PLL0			0
+#define GPU_CC_PLL0_OUT_AUX2		1
+#define GPU_CC_PLL1			2
+#define GPU_CC_PLL1_OUT_AUX		3
+#define GPU_CC_AHB_CLK			4
+#define GPU_CC_CRC_AHB_CLK		5
+#define GPU_CC_CX_GFX3D_CLK		6
+#define GPU_CC_CX_GMU_CLK		7
+#define GPU_CC_CX_SNOC_DVM_CLK		8
+#define GPU_CC_CXO_AON_CLK		9
+#define GPU_CC_CXO_CLK			10
+#define GPU_CC_GMU_CLK_SRC		11
+#define GPU_CC_GX_CXO_CLK		12
+#define GPU_CC_GX_GFX3D_CLK		13
+#define GPU_CC_GX_GFX3D_CLK_SRC		14
+#define GPU_CC_SLEEP_CLK		15
+#define GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK	16
+
+/* Resets */
+#define GPU_GX_BCR			0
+
+/* GDSCs */
+#define GPU_CX_GDSC			0
+#define GPU_GX_GDSC			1
+
+#endif