diff options
Diffstat (limited to 'Documentation/devicetree/bindings/pwm/pwm-amlogic.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/pwm/pwm-amlogic.yaml | 50 |
1 files changed, 47 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/pwm/pwm-amlogic.yaml b/Documentation/devicetree/bindings/pwm/pwm-amlogic.yaml index a1d382aacb82..1d71d4f8f328 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-amlogic.yaml +++ b/Documentation/devicetree/bindings/pwm/pwm-amlogic.yaml @@ -21,23 +21,36 @@ properties: - amlogic,meson-g12a-ee-pwm - amlogic,meson-g12a-ao-pwm-ab - amlogic,meson-g12a-ao-pwm-cd - - amlogic,meson-s4-pwm + deprecated: true - items: - const: amlogic,meson-gx-pwm - const: amlogic,meson-gxbb-pwm + deprecated: true - items: - const: amlogic,meson-gx-ao-pwm - const: amlogic,meson-gxbb-ao-pwm + deprecated: true - items: - const: amlogic,meson8-pwm - const: amlogic,meson8b-pwm + deprecated: true + - enum: + - amlogic,meson8-pwm-v2 + - amlogic,meson-s4-pwm + - items: + - enum: + - amlogic,meson8b-pwm-v2 + - amlogic,meson-gxbb-pwm-v2 + - amlogic,meson-axg-pwm-v2 + - amlogic,meson-g12-pwm-v2 + - const: amlogic,meson8-pwm-v2 reg: maxItems: 1 clocks: minItems: 1 - maxItems: 2 + maxItems: 4 clock-names: minItems: 1 @@ -68,11 +81,14 @@ allOf: - amlogic,meson-g12a-ao-pwm-ab - amlogic,meson-g12a-ao-pwm-cd then: - # Historic bindings tied to the driver implementation + # Obsolete historic bindings tied to the driver implementation # The clocks provided here are meant to be matched with the input # known (hard-coded) in the driver and used to select pwm clock # source. Currently, the linux driver ignores this. + # This is kept to maintain ABI backward compatibility. properties: + clocks: + maxItems: 2 clock-names: oneOf: - items: @@ -81,6 +97,27 @@ allOf: - const: clkin0 - const: clkin1 + # Newer binding where clock describe the actual clock inputs of the pwm + # block. These are necessary but some inputs may be grounded. + - if: + properties: + compatible: + contains: + enum: + - amlogic,meson8-pwm-v2 + then: + properties: + clocks: + minItems: 1 + items: + - description: input clock 0 of the pwm block + - description: input clock 1 of the pwm block + - description: input clock 2 of the pwm block + - description: input clock 3 of the pwm block + clock-names: false + required: + - clocks + # Newer IP block take a single input per channel, instead of 4 inputs # for both channels - if: @@ -111,6 +148,13 @@ examples: #pwm-cells = <3>; }; - | + pwm@2000 { + compatible = "amlogic,meson8-pwm-v2"; + reg = <0x1000 0x10>; + clocks = <&xtal>, <0>, <&fdiv4>, <&fdiv5>; + #pwm-cells = <3>; + }; + - | pwm@1000 { compatible = "amlogic,meson-s4-pwm"; reg = <0x1000 0x10>; |