dt-bindings: clock: Add SM8350 VIDEOCC

SM8350, like most recent higher-end chips has a separate clock
controller block just for the Venus IP. Document it.

The binding was separated as the driver, unlike the earlier ones, doesn't
expect clock-names to keep it easier to maintain.

Signed-off-by: Konrad Dybcio <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Bjorn Andersson <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

Documentation/devicetree/bindings/clock/qcom,sm8350-videocc.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8350-videocc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM8350 Video Clock & Reset Controller
+
+maintainers:
+  - Konrad Dybcio <[e-mail]>
+
+description: |
+  Qualcomm video clock control module provides the clocks, resets and power
+  domains on Qualcomm SoCs.
+
+  See also::
+    include/dt-bindings/clock/qcom,videocc-sm8350.h
+    include/dt-bindings/reset/qcom,videocc-sm8350.h
+
+properties:
+  compatible:
+    const: qcom,sm8350-videocc
+
+  clocks:
+    items:
+      - description: Board XO source
+      - description: Board active XO source
+      - description: Board sleep clock
+
+  power-domains:
+    description:
+      A phandle and PM domain specifier for the MMCX power domain.
+    maxItems: 1
+
+  required-opps:
+    description:
+      A phandle to an OPP node describing required MMCX performance point.
+    maxItems: 1
+
+required:
+  - compatible
+  - clocks
+  - power-domains
+  - required-opps
+
+allOf:
+  - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+
+    clock-controller@abf0000 {
+      compatible = "qcom,sm8350-videocc";
+      reg = <0x0abf0000 0x10000>;
+      clocks = <&rpmhcc RPMH_CXO_CLK>,
+               <&rpmhcc RPMH_CXO_CLK_A>,
+               <&sleep_clk>;
+      power-domains = <&rpmhpd SM8350_MMCX>;
+      required-opps = <&rpmhpd_opp_low_svs>;
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+      #power-domain-cells = <1>;
+    };
+...

include/dt-bindings/clock/qcom,sm8350-videocc.h

···
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023, Linaro Limited
+ */
+
+#ifndef _DT_BINDINGS_CLK_QCOM_VIDEO_CC_SM8350_H
+#define _DT_BINDINGS_CLK_QCOM_VIDEO_CC_SM8350_H
+
+/* Clocks */
+#define VIDEO_CC_AHB_CLK_SRC					0
+#define VIDEO_CC_MVS0_CLK					1
+#define VIDEO_CC_MVS0_CLK_SRC					2
+#define VIDEO_CC_MVS0_DIV_CLK_SRC				3
+#define VIDEO_CC_MVS0C_CLK					4
+#define VIDEO_CC_MVS0C_DIV2_DIV_CLK_SRC				5
+#define VIDEO_CC_MVS1_CLK					6
+#define VIDEO_CC_MVS1_CLK_SRC					7
+#define VIDEO_CC_MVS1_DIV2_CLK					8
+#define VIDEO_CC_MVS1_DIV_CLK_SRC				9
+#define VIDEO_CC_MVS1C_CLK					10
+#define VIDEO_CC_MVS1C_DIV2_DIV_CLK_SRC				11
+#define VIDEO_CC_SLEEP_CLK					12
+#define VIDEO_CC_SLEEP_CLK_SRC					13
+#define VIDEO_CC_XO_CLK_SRC					14
+#define VIDEO_PLL0						15
+#define VIDEO_PLL1						16
+
+/* GDSCs */
+#define MVS0C_GDSC						0
+#define MVS1C_GDSC						1
+#define MVS0_GDSC						2
+#define MVS1_GDSC						3
+
+#endif

include/dt-bindings/reset/qcom,sm8350-videocc.h

···
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023, Linaro Limited
+ */
+
+#ifndef _DT_BINDINGS_RESET_QCOM_VIDEO_CC_SM8350_H
+#define _DT_BINDINGS_RESET_QCOM_VIDEO_CC_SM8350_H
+
+#define VIDEO_CC_CVP_INTERFACE_BCR				0
+#define VIDEO_CC_CVP_MVS0_BCR					1
+#define VIDEO_CC_MVS0C_CLK_ARES					2
+#define VIDEO_CC_CVP_MVS0C_BCR					3
+#define VIDEO_CC_CVP_MVS1_BCR					4
+#define VIDEO_CC_MVS1C_CLK_ARES					5
+#define VIDEO_CC_CVP_MVS1C_BCR					6
+
+#endif