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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/tesla,fsd-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Tesla FSD (Full Self-Driving) SoC clock controller
+
+maintainers:
+ - Alim Akhtar <alim.akhtar@samsung.com>
+ - linux-fsd@tesla.com
+
+description: |
+ FSD clock controller consist of several clock management unit
+ (CMU), which generates clocks for various inteernal SoC blocks.
+ The root clock comes from external OSC clock (24 MHz).
+
+ All available clocks are defined as preprocessor macros in
+ 'dt-bindings/clock/fsd-clk.h' header.
+
+properties:
+ compatible:
+ enum:
+ - tesla,fsd-clock-cmu
+ - tesla,fsd-clock-imem
+ - tesla,fsd-clock-peric
+ - tesla,fsd-clock-fsys0
+ - tesla,fsd-clock-fsys1
+ - tesla,fsd-clock-mfc
+ - tesla,fsd-clock-cam_csi
+
+ clocks:
+ minItems: 1
+ maxItems: 6
+
+ clock-names:
+ minItems: 1
+ maxItems: 6
+
+ "#clock-cells":
+ const: 1
+
+ reg:
+ maxItems: 1
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: tesla,fsd-clock-cmu
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24 MHz)
+ clock-names:
+ items:
+ - const: fin_pll
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: tesla,fsd-clock-imem
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24 MHz)
+ - description: IMEM TCU clock (from CMU_CMU)
+ - description: IMEM bus clock (from CMU_CMU)
+ - description: IMEM DMA clock (from CMU_CMU)
+ clock-names:
+ items:
+ - const: fin_pll
+ - const: dout_cmu_imem_tcuclk
+ - const: dout_cmu_imem_aclk
+ - const: dout_cmu_imem_dmaclk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: tesla,fsd-clock-peric
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24 MHz)
+ - description: Shared0 PLL div4 clock (from CMU_CMU)
+ - description: PERIC shared1 div36 clock (from CMU_CMU)
+ - description: PERIC shared0 div3 TBU clock (from CMU_CMU)
+ - description: PERIC shared0 div20 clock (from CMU_CMU)
+ - description: PERIC shared1 div4 DMAclock (from CMU_CMU)
+ clock-names:
+ items:
+ - const: fin_pll
+ - const: dout_cmu_pll_shared0_div4
+ - const: dout_cmu_peric_shared1div36
+ - const: dout_cmu_peric_shared0div3_tbuclk
+ - const: dout_cmu_peric_shared0div20
+ - const: dout_cmu_peric_shared1div4_dmaclk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: tesla,fsd-clock-fsys0
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24 MHz)
+ - description: Shared0 PLL div6 clock (from CMU_CMU)
+ - description: FSYS0 shared1 div4 clock (from CMU_CMU)
+ - description: FSYS0 shared0 div4 clock (from CMU_CMU)
+ clock-names:
+ items:
+ - const: fin_pll
+ - const: dout_cmu_pll_shared0_div6
+ - const: dout_cmu_fsys0_shared1div4
+ - const: dout_cmu_fsys0_shared0div4
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: tesla,fsd-clock-fsys1
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24 MHz)
+ - description: FSYS1 shared0 div8 clock (from CMU_CMU)
+ - description: FSYS1 shared0 div4 clock (from CMU_CMU)
+ clock-names:
+ items:
+ - const: fin_pll
+ - const: dout_cmu_fsys1_shared0div8
+ - const: dout_cmu_fsys1_shared0div4
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: tesla,fsd-clock-mfc
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24 MHz)
+ clock-names:
+ items:
+ - const: fin_pll
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: tesla,fsd-clock-cam_csi
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24 MHz)
+ clock-names:
+ items:
+ - const: fin_pll
+
+required:
+ - compatible
+ - "#clock-cells"
+ - clocks
+ - clock-names
+ - reg
+
+additionalProperties: false
+
+examples:
+ # Clock controller node for CMU_FSYS1
+ - |
+ #include <dt-bindings/clock/fsd-clk.h>
+
+ clock_fsys1: clock-controller@16810000 {
+ compatible = "tesla,fsd-clock-fsys1";
+ reg = <0x16810000 0x3000>;
+ #clock-cells = <1>;
+
+ clocks = <&fin_pll>,
+ <&clock_cmu DOUT_CMU_FSYS1_SHARED0DIV8>,
+ <&clock_cmu DOUT_CMU_FSYS1_SHARED0DIV4>;
+ clock-names = "fin_pll",
+ "dout_cmu_fsys1_shared0div8",
+ "dout_cmu_fsys1_shared0div4";
+ };
+
+...