dt-bindings: clock: add QCOM SM6115 display clock bindings

Add device tree bindings for display clock controller for
Qualcomm Technology Inc's SM6115 SoC.

Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
[bjorn: Minor fix of binding description]
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220911164635.182973-2-a39.skl@gmail.com

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

@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm6115-dispcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display Clock Controller for SM6115
+
+maintainers:
+  - Bjorn Andersson <andersson@kernel.org>
+
+description: |
+  Qualcomm display clock control module which supports the clocks and
+  power domains on SM6115.
+
+  See also:
+    include/dt-bindings/clock/qcom,sm6115-dispcc.h
+
+properties:
+  compatible:
+    enum:
+      - qcom,sm6115-dispcc
+
+  clocks:
+    items:
+      - description: Board XO source
+      - description: Board sleep clock
+      - description: Byte clock from DSI PHY0
+      - description: Pixel clock from DSI PHY0
+      - description: GPLL0 DISP DIV clock from GCC
+
+  '#clock-cells':
+    const: 1
+
+  '#reset-cells':
+    const: 1
+
+  '#power-domain-cells':
+    const: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#clock-cells'
+  - '#reset-cells'
+  - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,rpmcc.h>
+    #include <dt-bindings/clock/qcom,gcc-sm6115.h>
+    clock-controller@5f00000 {
+      compatible = "qcom,sm6115-dispcc";
+      reg = <0x5f00000 0x20000>;
+      clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
+               <&sleep_clk>,
+               <&dsi0_phy 0>,
+               <&dsi0_phy 1>,
+               <&gcc GCC_DISP_GPLL0_DIV_CLK_SRC>;
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+      #power-domain-cells = <1>;
+    };
+...

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

@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2022, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _DT_BINDINGS_CLK_QCOM_DISP_CC_SM6115_H
+#define _DT_BINDINGS_CLK_QCOM_DISP_CC_SM6115_H
+
+/* DISP_CC clocks */
+#define DISP_CC_PLL0			0
+#define DISP_CC_PLL0_OUT_MAIN		1
+#define DISP_CC_MDSS_AHB_CLK		2
+#define DISP_CC_MDSS_AHB_CLK_SRC	3
+#define DISP_CC_MDSS_BYTE0_CLK		4
+#define DISP_CC_MDSS_BYTE0_CLK_SRC	5
+#define DISP_CC_MDSS_BYTE0_DIV_CLK_SRC	6
+#define DISP_CC_MDSS_BYTE0_INTF_CLK	7
+#define DISP_CC_MDSS_ESC0_CLK		8
+#define DISP_CC_MDSS_ESC0_CLK_SRC	9
+#define DISP_CC_MDSS_MDP_CLK		10
+#define DISP_CC_MDSS_MDP_CLK_SRC	11
+#define DISP_CC_MDSS_MDP_LUT_CLK	12
+#define DISP_CC_MDSS_NON_GDSC_AHB_CLK	13
+#define DISP_CC_MDSS_PCLK0_CLK		14
+#define DISP_CC_MDSS_PCLK0_CLK_SRC	15
+#define DISP_CC_MDSS_ROT_CLK		16
+#define DISP_CC_MDSS_ROT_CLK_SRC	17
+#define DISP_CC_MDSS_VSYNC_CLK		18
+#define DISP_CC_MDSS_VSYNC_CLK_SRC	19
+#define DISP_CC_SLEEP_CLK		20
+#define DISP_CC_SLEEP_CLK_SRC		21
+
+/* DISP_CC GDSCR */
+#define MDSS_GDSC			0
+
+#endif