dt-bindings: clock: Add Qcom SM6125 GPUCC

Add device tree bindings for graphics clock controller for Qualcomm
Technology Inc's SM6125 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/20230208091340.124641-6-konrad.dybcio@linaro.org

Documentation/devicetree/bindings/clock/qcom,sm6125-gpucc.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm6125-gpucc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Graphics Clock & Reset Controller on SM6125
+
+maintainers:
+  - Konrad Dybcio <konrad.dybcio@linaro.org>
+
+description: |
+  Qualcomm graphics clock control module provides clocks and power domains on
+  Qualcomm SoCs.
+
+  See also:: include/dt-bindings/clock/qcom,sm6125-gpucc.h
+
+properties:
+  compatible:
+    enum:
+      - qcom,sm6125-gpucc
+
+  clocks:
+    items:
+      - description: Board XO source
+      - description: GPLL0 main branch source
+
+  '#clock-cells':
+    const: 1
+
+  '#power-domain-cells':
+    const: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#clock-cells'
+  - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-sm6125.h>
+    #include <dt-bindings/clock/qcom,rpmcc.h>
+
+    soc {
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        clock-controller@5990000 {
+            compatible = "qcom,sm6125-gpucc";
+            reg = <0x05990000 0x9000>;
+            clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
+                     <&gcc GCC_GPU_GPLL0_CLK_SRC>;
+            #clock-cells = <1>;
+            #power-domain-cells = <1>;
+        };
+    };
+...

include/dt-bindings/clock/qcom,sm6125-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_SM6125_H
+#define _DT_BINDINGS_CLK_QCOM_GPU_CC_SM6125_H
+
+/* Clocks */
+#define GPU_CC_PLL0_OUT_AUX2			0
+#define GPU_CC_PLL1_OUT_AUX2			1
+#define GPU_CC_CRC_AHB_CLK			2
+#define GPU_CC_CX_APB_CLK			3
+#define GPU_CC_CX_GFX3D_CLK			4
+#define GPU_CC_CX_GMU_CLK			5
+#define GPU_CC_CX_SNOC_DVM_CLK			6
+#define GPU_CC_CXO_AON_CLK			7
+#define GPU_CC_CXO_CLK				8
+#define GPU_CC_GMU_CLK_SRC			9
+#define GPU_CC_SLEEP_CLK			10
+#define GPU_CC_GX_GFX3D_CLK			11
+#define GPU_CC_GX_GFX3D_CLK_SRC			12
+#define GPU_CC_AHB_CLK				13
+#define GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK		14
+
+/* GDSCs */
+#define GPU_CX_GDSC				0
+#define GPU_GX_GDSC				1
+
+#endif