linux-kernel - Re: [PATCH 1/5] dt-bindings: timer: atmel,at91sam9260-pit: convert to yaml

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Message-ID: <20230525-renewal-proposal-9620d5520437@spud>
Date:   Thu, 25 May 2023 18:10:52 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Claudiu Beznea <claudiu.beznea@...rochip.com>
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, nicolas.ferre@...rochip.com,
        alexandre.belloni@...tlin.com, daniel.lezcano@...aro.org,
        tglx@...utronix.de, wim@...ux-watchdog.org, linux@...ck-us.net,
        sebastian.reichel@...labora.com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-watchdog@...r.kernel.org
Subject: Re: [PATCH 1/5] dt-bindings: timer: atmel,at91sam9260-pit: convert
 to yaml

On Thu, May 25, 2023 at 03:55:58PM +0300, Claudiu Beznea wrote:
> Convert Atmel PIT to YAML. Along with it clock binding has been added as
> the driver enables it to ensure proper hardware functionality.
> 
> Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
> ---
>  .../devicetree/bindings/arm/atmel-sysregs.txt |  6 ---
>  .../bindings/timer/atmel,at91sam9260-pit.yaml | 51 +++++++++++++++++++
>  2 files changed, 51 insertions(+), 6 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml
> 
> diff --git a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
> index 67a66bf74895..7024839c5da2 100644
> --- a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
> +++ b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
> @@ -4,12 +4,6 @@ Chipid required properties:
>  - compatible: Should be "atmel,sama5d2-chipid" or "microchip,sama7g5-chipid"
>  - reg : Should contain registers location and length
>  
> -PIT Timer required properties:
> -- compatible: Should be "atmel,at91sam9260-pit"
> -- reg: Should contain registers location and length
> -- interrupts: Should contain interrupt for the PIT which is the IRQ line
> -  shared across all System Controller members.
> -
>  PIT64B Timer required properties:
>  - compatible: Should be "microchip,sam9x60-pit64b"
>  - reg: Should contain registers location and length
> diff --git a/Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml b/Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml
> new file mode 100644
> index 000000000000..f304cd68acd5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml
> @@ -0,0 +1,51 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/timer/atmel,at91sam9260-pit.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Atmel Periodic Interval Timer (PIT)
> +
> +maintainers:
> +  - Claudiu Beznea <claudiu.beznea@...rochip.com>
> +
> +description:
> +  Atmel periodic interval timer provides the operating system’s scheduler
> +  interrupt. It is designed to offer maximum accuracy and efficient management,
> +  even for systems with long response time.
> +
> +properties:
> +  compatible:
> +    const: atmel,at91sam9260-pit
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    description:
> +      Contain interrupt for the PIT which is the IRQ line shared across all
> +      System Controller members.
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/at91.h>
> +
> +    pit: timer@...ffe40 {
> +        compatible = "atmel,at91sam9260-pit";
> +        reg = <0xfffffe40 0x10>;
> +        interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;

make dt_binding_check W=1 -j 30 DT_SCHEMA_FILES=atmel,at91sam9260-pit.yaml
  LINT    Documentation/devicetree/bindings
  DTEX    Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.example.dts
  CHKDT   Documentation/devicetree/bindings/processed-schema.json
  SCHEMA  Documentation/devicetree/bindings/processed-schema.json
  DTC_CHK Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.example.dtb
Error: Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.example.dts:26.29-30 syntax error
FATAL ERROR: Unable to parse input tree
make[1]: *** [scripts/Makefile.lib:419: Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.example.dtb] Error 1
make: *** [Makefile:1512: dt_binding_check] Error 2

Think you're missing the header for IRQ_TYPE_LEVEL_HIGH

> +        clocks = <&pmc PMC_TYPE_CORE PMC_MCK>;
> +    };
> +...
> -- 
> 2.34.1
> 

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