dt-bindings: clock: Introduce QCOM Video clock bindings

Add device tree bindings for video clock controller for
Qualcomm Technology Inc's SoCs.
Signed-off-by: Amit Nischal <anischal@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Documentation/devicetree/bindings/clock/qcom,videocc.txt

+Qualcomm Video Clock & Reset Controller Binding
+-----------------------------------------------
+
+Required properties :
+- compatible : shall contain "qcom,sdm845-videocc"
+- reg : shall contain base register location and length
+- #clock-cells : from common clock binding, shall contain 1.
+- #power-domain-cells : from generic power domain binding, shall contain 1.
+
+Optional properties :
+- #reset-cells : from common reset binding, shall contain 1.
+
+Example:
+	videocc: clock-controller@ab00000 {
+		compatible = "qcom,sdm845-videocc";
+		reg = <0xab00000 0x10000>;
+		#clock-cells = <1>;
+		#power-domain-cells = <1>;
+	};

include/dt-bindings/clock/qcom,videocc-sdm845.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _DT_BINDINGS_CLK_SDM_VIDEO_CC_SDM845_H
+#define _DT_BINDINGS_CLK_SDM_VIDEO_CC_SDM845_H
+
+/* VIDEO_CC clock registers */
+#define VIDEO_CC_APB_CLK		0
+#define VIDEO_CC_AT_CLK			1
+#define VIDEO_CC_QDSS_TRIG_CLK		2
+#define VIDEO_CC_QDSS_TSCTR_DIV8_CLK	3
+#define VIDEO_CC_VCODEC0_AXI_CLK	4
+#define VIDEO_CC_VCODEC0_CORE_CLK	5
+#define VIDEO_CC_VCODEC1_AXI_CLK	6
+#define VIDEO_CC_VCODEC1_CORE_CLK	7
+#define VIDEO_CC_VENUS_AHB_CLK		8
+#define VIDEO_CC_VENUS_CLK_SRC		9
+#define VIDEO_CC_VENUS_CTL_AXI_CLK	10
+#define VIDEO_CC_VENUS_CTL_CORE_CLK	11
+#define VIDEO_PLL0			12
+
+/* VIDEO_CC Resets */
+#define VIDEO_CC_VENUS_BCR		0
+#define VIDEO_CC_VCODEC0_BCR		1
+#define VIDEO_CC_VCODEC1_BCR		2
+#define VIDEO_CC_INTERFACE_BCR		3
+
+/* VIDEO_CC GDSCRs */
+#define VENUS_GDSC			0
+#define VCODEC0_GDSC			1
+#define VCODEC1_GDSC			2
+
+#endif