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authorGeert Uytterhoeven <geert+renesas@glider.be>2024-01-31 17:11:45 +0100
committerDaniel Lezcano <daniel.lezcano@linaro.org>2024-01-31 22:12:18 +0100
commit0076a37a426b6c850a0b41b814952760e4a70fcf (patch)
tree7867d923eec3e94a5ebf1f8bd7c57dfbfb466b2c
parent702107ed5d89e50499aa1d65fe499a028073b25e (diff)
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dt-bindings: timer: renesas,tmu: Document input capture interrupt
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@glider.be> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/8cb38b5236213a467c6c0073f97ccc4bfd5a39ff.1706717378.git.geert+renesas@glider.be
-rw-r--r--Documentation/devicetree/bindings/timer/renesas,tmu.yaml18
1 files changed, 16 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/timer/renesas,tmu.yaml b/Documentation/devicetree/bindings/timer/renesas,tmu.yaml
index a67e427a9e7e..84bbe15028a1 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>;