[PATCH v2] dt-bindings: timer: renesas,tmu: Document input capture interrupt

[PATCH v2] dt-bindings: timer: renesas,tmu: Document input capture interrupt

[Geert Uytterhoeven]

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>
---
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@glider.be
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

Re: [PATCH v2] dt-bindings: timer: renesas,tmu: Document input capture interrupt

[Niklas Söderlund]

Hi Geert,

Thanks for your work.

On 2024-01-31 17:11:45 +0100, Geert Uytterhoeven wrote:
> 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>

> ---
> 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@glider.be
> 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
> 
> 

-- 
Kind Regards,
Niklas Söderlund

Re: [PATCH v2] dt-bindings: timer: renesas,tmu: Document input capture interrupt

[Daniel Lezcano]

On 31/01/2024 19:00, Niklas Söderlund wrote:
> Hi Geert,
> 
> Thanks for your work.
> 
> On 2024-01-31 17:11:45 +0100, Geert Uytterhoeven wrote:
>> 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>
> 

Applied, thanks

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Re: [PATCH v2] dt-bindings: timer: renesas,tmu: Document input capture interrupt

[Wolfram Sang]

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On Wed, Jan 31, 2024 at 05:11:45PM +0100, Geert Uytterhoeven wrote:
> 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: Wolfram Sang <wsa+renesas@sang-engineering.com>


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