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

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@microchip.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

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@microchip.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@microchip.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@fffffe40 {
> +        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
>

On Thu, 25 May 2023 15:55:58 +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@microchip.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
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Error: Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.example.dts:29.29-30 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[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:1512: dt_binding_check] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230525125602.640855-2-claudiu.beznea@microchip.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.