Commit 803b60b7 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski
Browse files

Merge tag 'samsung-dt-bindings-refactoring-and-google-gs101-6.8' into next/drivers

Samsung Devicetree bindings topic branch for v6.8

Topic branch collecting several changes to Samsung SoC Devicetree
bindings:

1. Add specific compatibles to all Samsung Exynos and Tesla FSD blocks,
   because that's what guidelines expect [1] and is generally
   recommended practice.  Existing compatibles are left untouched, thus
   no driver changes are needed.  The work only cleans things up, so any
   future contributions will use recommended style: specific and
   fallback compatibles.

2. Add bindings for new devices: Samsung ExynosAutov920 and Google
   GS101.

These bindings are needed for both DTS and drivers, e.g. clock drivers.
parents beea67c7 5b02a863
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+6 −0
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@@ -230,6 +230,12 @@ properties:
              - samsung,exynosautov9-sadk   # Samsung Exynos Auto v9 SADK
          - const: samsung,exynosautov9

      - description: Exynos Auto v920 based boards
        items:
          - enum:
              - samsung,exynosautov920-sadk   # Samsung Exynos Auto v920 SADK
          - const: samsung,exynosautov920

required:
  - compatible

+106 −0
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/google,gs101-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Google GS101 SoC clock controller

maintainers:
  - Peter Griffin <peter.griffin@linaro.org>

description: |
  Google GS101 clock controller is comprised of several CMU units, generating
  clocks for different domains. Those CMU units are modeled as separate device
  tree nodes, and might depend on each other. The root clock in that clock tree
  is OSCCLK (24.576 MHz). That external clock must be defined as a fixed-rate
  clock in dts.

  CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and
  dividers; all other leaf clocks (other CMUs) are usually derived from CMU_TOP.

  Each clock is assigned an identifier and client nodes can use this identifier
  to specify the clock which they consume. All clocks available for usage
  in clock consumer nodes are defined as preprocessor macros in
  'dt-bindings/clock/gs101.h' header.

properties:
  compatible:
    enum:
      - google,gs101-cmu-top
      - google,gs101-cmu-apm
      - google,gs101-cmu-misc

  clocks:
    minItems: 1
    maxItems: 2

  clock-names:
    minItems: 1
    maxItems: 2

  "#clock-cells":
    const: 1

  reg:
    maxItems: 1

required:
  - compatible
  - "#clock-cells"
  - clocks
  - clock-names
  - reg

allOf:
  - if:
      properties:
        compatible:
          contains:
            enum:
              - google,gs101-cmu-top
              - google,gs101-cmu-apm
    then:
      properties:
        clocks:
          items:
            - description: External reference clock (24.576 MHz)

        clock-names:
          items:
            - const: oscclk

  - if:
      properties:
        compatible:
          contains:
            const: google,gs101-cmu-misc

    then:
      properties:
        clocks:
          items:
            - description: Misc bus clock (from CMU_TOP)
            - description: Misc sss clock (from CMU_TOP)

        clock-names:
          items:
            - const: dout_cmu_misc_bus
            - const: dout_cmu_misc_sss

additionalProperties: false

examples:
  # Clock controller node for CMU_TOP
  - |
    #include <dt-bindings/clock/google,gs101.h>

    cmu_top: clock-controller@1e080000 {
        compatible = "google,gs101-cmu-top";
        reg = <0x1e080000 0x8000>;
        #clock-cells = <1>;
        clocks = <&ext_24_5m>;
        clock-names = "oscclk";
    };

...
+5 −0
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@@ -40,6 +40,11 @@ properties:
              - rockchip,rk3288-mali
              - samsung,exynos5433-mali
          - const: arm,mali-t760
      - items:
          - enum:
              - samsung,exynos7-mali
          - const: samsung,exynos5433-mali
          - const: arm,mali-t760
      - items:
          - enum:
              - rockchip,rk3399-mali
+15 −3
Original line number Diff line number Diff line
@@ -11,9 +11,21 @@ maintainers:

properties:
  compatible:
    enum:
    oneOf:
      - enum:
          - samsung,exynos4210-chipid
          - samsung,exynos850-chipid
      - items:
          - enum:
              - samsung,exynos5433-chipid
              - samsung,exynos7-chipid
          - const: samsung,exynos4210-chipid
      - items:
          - enum:
              - samsung,exynos7885-chipid
              - samsung,exynosautov9-chipid
              - samsung,exynosautov920-chipid
          - const: samsung,exynos850-chipid

  reg:
    maxItems: 1
+10 −1
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@@ -25,7 +25,16 @@ properties:
          - samsung,exynos5250-hsi2c    # Exynos5250 and Exynos5420
          - samsung,exynos5260-hsi2c    # Exynos5260
          - samsung,exynos7-hsi2c       # Exynos7
          - samsung,exynosautov9-hsi2c  # ExynosAutoV9 and Exynos850
          - samsung,exynosautov9-hsi2c
      - items:
          - enum:
              - samsung,exynos5433-hsi2c
              - tesla,fsd-hsi2c
          - const: samsung,exynos7-hsi2c
      - items:
          - enum:
              - samsung,exynos850-hsi2c
          - const: samsung,exynosautov9-hsi2c
      - const: samsung,exynos5-hsi2c    # Exynos5250 and Exynos5420
        deprecated: true

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