Some Timer Unit (TMU) instances with 3 channels support a fourth interrupt: an input capture interrupt for the third channel. While at it, document the meaning of the four interrupts, and add "interrupt-names" for clarity. Update the example to match reality. Inspired by a patch by Yoshinori Sato for SH. Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> --- v2: - Reword interrupt descriptions. The corresponding DTS updates can be found in series "[PATCH 0/2] ARM/arm64: dts: renesas: Improve TMU interrupt descriptions". https://lore.kernel.org/r/cover.1705325654.git.geert+renesas@xxxxxxxxx Once the DTS updates are upstream, "interrupt-names" can be made required. --- .../devicetree/bindings/timer/renesas,tmu.yaml | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/timer/renesas,tmu.yaml b/Documentation/devicetree/bindings/timer/renesas,tmu.yaml index a67e427a9e7e22aa..84bbe15028a1de94 100644 --- a/Documentation/devicetree/bindings/timer/renesas,tmu.yaml +++ b/Documentation/devicetree/bindings/timer/renesas,tmu.yaml @@ -46,7 +46,19 @@ properties: interrupts: minItems: 2 - maxItems: 3 + items: + - description: Underflow interrupt, channel 0 + - description: Underflow interrupt, channel 1 + - description: Underflow interrupt, channel 2 + - description: Input capture interrupt, channel 2 + + interrupt-names: + minItems: 2 + items: + - const: tuni0 + - const: tuni1 + - const: tuni2 + - const: ticpi2 clocks: maxItems: 1 @@ -100,7 +112,9 @@ examples: reg = <0xffd80000 0x30>; interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>, - <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>; + <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "tuni0", "tuni1", "tuni2", "ticpi2"; clocks = <&mstp0_clks R8A7779_CLK_TMU0>; clock-names = "fck"; power-domains = <&sysc R8A7779_PD_ALWAYS_ON>; -- 2.34.1
