From 0f920690a82cc99ae08cab08bee2e5685b62fd04 Mon Sep 17 00:00:00 2001 From: Nick Hu Date: Fri, 21 Mar 2025 16:35:06 +0800 Subject: [PATCH] dt-bindings: timer: Add SiFive CLINT2 Add compatible string and property for the SiFive CLINT v2. 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 Link: https://lore.kernel.org/r/20250321083507.25298-1-nick.hu@sifive.com Signed-off-by: Daniel Lezcano --- .../bindings/timer/sifive,clint.yaml | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/Documentation/devicetree/bindings/timer/sifive,clint.yaml b/Documentation/devicetree/bindings/timer/sifive,clint.yaml index 73edde5d197f..653e2e0ca878 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 + 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 required: -- 2.25.1