dt-bindings: clock: qcom: Add SM8450 video clock controller

Add device tree bindings for the video clock controller on Qualcomm
SM8450 platform.
Signed-off-by: Taniya Das <quic_tdas@quicinc.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230524140656.7076-2-quic_tdas@quicinc.com

Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8450-videocc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Video Clock & Reset Controller on SM8450
+
+maintainers:
+  - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+  Qualcomm video clock control module provides the clocks, resets and power
+  domains on SM8450.
+
+  See also:: include/dt-bindings/clock/qcom,videocc-sm8450.h
+
+properties:
+  compatible:
+    const: qcom,sm8450-videocc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Board XO source
+      - description: Video AHB clock from GCC
+
+  power-domains:
+    maxItems: 1
+    description:
+      MMCX power domain.
+
+  required-opps:
+    maxItems: 1
+    description:
+      A phandle to an OPP node describing required MMCX performance point.
+
+  '#clock-cells':
+    const: 1
+
+  '#reset-cells':
+    const: 1
+
+  '#power-domain-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - power-domains
+  - required-opps
+  - '#clock-cells'
+  - '#reset-cells'
+  - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-sm8450.h>
+    #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+    videocc: clock-controller@aaf0000 {
+      compatible = "qcom,sm8450-videocc";
+      reg = <0x0aaf0000 0x10000>;
+      clocks = <&rpmhcc RPMH_CXO_CLK>,
+               <&gcc GCC_VIDEO_AHB_CLK>;
+      power-domains = <&rpmhpd SM8450_MMCX>;
+      required-opps = <&rpmhpd_opp_low_svs>;
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+      #power-domain-cells = <1>;
+    };
+...

include/dt-bindings/clock/qcom,sm8450-videocc.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef _DT_BINDINGS_CLK_QCOM_VIDEO_CC_SM8450_H
+#define _DT_BINDINGS_CLK_QCOM_VIDEO_CC_SM8450_H
+
+/* VIDEO_CC clocks */
+#define VIDEO_CC_MVS0_CLK					0
+#define VIDEO_CC_MVS0_CLK_SRC					1
+#define VIDEO_CC_MVS0_DIV_CLK_SRC				2
+#define VIDEO_CC_MVS0C_CLK					3
+#define VIDEO_CC_MVS0C_DIV2_DIV_CLK_SRC				4
+#define VIDEO_CC_MVS1_CLK					5
+#define VIDEO_CC_MVS1_CLK_SRC					6
+#define VIDEO_CC_MVS1_DIV_CLK_SRC				7
+#define VIDEO_CC_MVS1C_CLK					8
+#define VIDEO_CC_MVS1C_DIV2_DIV_CLK_SRC				9
+#define VIDEO_CC_PLL0						10
+#define VIDEO_CC_PLL1						11
+
+/* VIDEO_CC power domains */
+#define VIDEO_CC_MVS0C_GDSC					0
+#define VIDEO_CC_MVS0_GDSC					1
+#define VIDEO_CC_MVS1C_GDSC					2
+#define VIDEO_CC_MVS1_GDSC					3
+
+/* VIDEO_CC resets */
+#define CVP_VIDEO_CC_INTERFACE_BCR				0
+#define CVP_VIDEO_CC_MVS0_BCR					1
+#define CVP_VIDEO_CC_MVS0C_BCR					2
+#define CVP_VIDEO_CC_MVS1_BCR					3
+#define CVP_VIDEO_CC_MVS1C_BCR					4
+#define VIDEO_CC_MVS0C_CLK_ARES					5
+#define VIDEO_CC_MVS1C_CLK_ARES					6
+
+#endif