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The SiFive CLINT v2 is incompatible with the SiFive CLINT v0 due to differences in their control methods. Signed-off-by: Nick Hu Reviewed-by: Samuel Holland Acked-by: Conor Dooley --- - v3 changes: - Add the reason for the incompatibility between sifive,clint2 and sifive,clint0. - v2 changes: - Don't allow sifive,clint2 by itself. Add '-{}' to the first entry - Mark the sifive,fine-ctr-bits as the required property when the compatible includes the sifive,clint2 .../bindings/timer/sifive,clint.yaml | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/Documentation/devicetree/bindings/timer/sifive,clint.yaml b/Do= cumentation/devicetree/bindings/timer/sifive,clint.yaml index 76d83aea4e2b..34684cda8b15 100644 --- a/Documentation/devicetree/bindings/timer/sifive,clint.yaml +++ b/Documentation/devicetree/bindings/timer/sifive,clint.yaml @@ -36,6 +36,12 @@ properties: - starfive,jh7110-clint # StarFive JH7110 - starfive,jh8100-clint # StarFive JH8100 - const: sifive,clint0 # SiFive CLINT v0 IP block + - items: + - {} + - const: sifive,clint2 # SiFive CLINT v2 IP block + description: + SiFive CLINT v2 is the HRT that supports the Zicntr. The control= of sifive,clint2 + differs from that of sifive,clint0, making them incompatible. - items: - enum: - allwinner,sun20i-d1-clint @@ -62,6 +68,22 @@ properties: minItems: 1 maxItems: 4095 =20 + sifive,fine-ctr-bits: + maximum: 15 + description: The width in bits of the fine counter. + +if: + properties: + compatible: + contains: + const: sifive,clint2 +then: + required: + - sifive,fine-ctr-bits +else: + properties: + sifive,fine-ctr-bits: false + additionalProperties: false =20 required: --=20 2.17.1