[v2] dt-bindings: watchdog: da9062-wdt: convert txt to yaml

Convert txt file to yaml.
Add a mainterner block. Took a value from dlg,da9063 PMIC.

Signed-off-by: Nik Bune <n2h9z4@gmail.com>
---

Changes in v2:
- Updated filename to be equal to compatible value.
- Removed ">" in description fields. 
- Added optional properties to the example. 
- Removed reg property, as it is not present in the txt version. 


 .../bindings/watchdog/da9062-wdt.txt          | 34 -------------
 .../watchdog/dlg,da9062-watchdog.yaml         | 49 +++++++++++++++++++
 2 files changed, 49 insertions(+), 34 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/watchdog/da9062-wdt.txt
 create mode 100644 Documentation/devicetree/bindings/watchdog/dlg,da9062-watchdog.yaml

On Tue, Oct 10, 2023 at 11:14:39PM +0200, Nik Bune wrote:
> Convert txt file to yaml.
> Add a mainterner block. Took a value from dlg,da9063 PMIC.
> 
> Signed-off-by: Nik Bune <n2h9z4@gmail.com>
> ---
> 
> Changes in v2:
> - Updated filename to be equal to compatible value.
> - Removed ">" in description fields. 
> - Added optional properties to the example. 
> - Removed reg property, as it is not present in the txt version. 
> 
> 
>  .../bindings/watchdog/da9062-wdt.txt          | 34 -------------
>  .../watchdog/dlg,da9062-watchdog.yaml         | 49 +++++++++++++++++++
>  2 files changed, 49 insertions(+), 34 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/watchdog/da9062-wdt.txt
>  create mode 100644 Documentation/devicetree/bindings/watchdog/dlg,da9062-watchdog.yaml
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt b/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt
> deleted file mode 100644
> index 354314d854ef..000000000000
> --- a/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -* Dialog Semiconductor DA9062/61 Watchdog Timer
> -
> -Required properties:
> -
> -- compatible: should be one of the following valid compatible string lines:
> -	"dlg,da9061-watchdog", "dlg,da9062-watchdog"
> -	"dlg,da9062-watchdog"
> -
> -Optional properties:
> -- dlg,use-sw-pm: Add this property to disable the watchdog during suspend.
> -	Only use this option if you can't use the watchdog automatic suspend
> -	function during a suspend (see register CONTROL_B).
> -- dlg,wdt-sd: Set what happens on watchdog timeout. If this bit is set the
> -	watchdog timeout triggers SHUTDOWN, if cleared the watchdog triggers
> -	POWERDOWN. Can be 0 or 1. Only use this option if you want to change the
> -	default chip's OTP setting for WATCHDOG_SD bit. If this property is NOT
> -	set the WATCHDOG_SD bit and on timeout watchdog behavior will match the
> -	chip's OTP settings.
> -
> -Example: DA9062
> -
> -	pmic0: da9062@58 {
> -		watchdog {
> -			compatible = "dlg,da9062-watchdog";
> -		};
> -	};
> -
> -Example: DA9061 using a fall-back compatible for the DA9062 watchdog driver
> -
> -	pmic0: da9061@58 {
> -		watchdog {
> -			compatible = "dlg,da9061-watchdog", "dlg,da9062-watchdog";
> -		};
> -	};
> diff --git a/Documentation/devicetree/bindings/watchdog/dlg,da9062-watchdog.yaml b/Documentation/devicetree/bindings/watchdog/dlg,da9062-watchdog.yaml
> new file mode 100644
> index 000000000000..9b7ffdb01da0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/dlg,da9062-watchdog.yaml
> @@ -0,0 +1,49 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/dlg,da9062-watchdog.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Dialog Semiconductor DA9062/61 Watchdog Timer
> +
> +maintainers:
> +  - Steve Twiss <stwiss.opensource@diasemi.com>
> +
> +allOf:
> +  - $ref: watchdog.yaml#
> +
> +properties:
> +  compatible:
> +    enum: 
> +      - dlg,da9061-watchdog
> +      - dlg,da9062-watchdog
> +
> +  dlg,use-sw-pm:
> +    type: boolean
> +    description:
> +      Add this property to disable the watchdog during suspend.
> +      Only use this option if you can't use the watchdog automatic suspend
> +      function during a suspend (see register CONTROL_B).
> +  
> +  dlg,wdt-sd:
> +    type: boolean

This property is a boolean...

> +    description:
> +      Set what happens on watchdog timeout. If this bit is set the
> +      watchdog timeout triggers SHUTDOWN, if cleared the watchdog triggers
> +      POWERDOWN. Can be 0 or 1.

... but you say "can be 0 or 1". Does this refer to the bit value, or
the property? There are no in-kernel users of this property as far as a
quick grep shows so it is a bi hard to tell.

Otherwise, I'm happy with this.

Thanks,
Conor.

> Only use this option if you want to change the
> +      default chip's OTP setting for WATCHDOG_SD bit. If this property is NOT
> +      set the WATCHDOG_SD bit and on timeout watchdog behavior will match the
> +      chip's OTP settings.
> +
> +required:
> +  - compatible
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    watchdog {
> +      compatible = "dlg,da9062-watchdog";
> +      dlg,use-sw-pm;
> +      dlg,wdt-sd;
> +    };
> -- 
> 2.34.1
>

>This property is a boolean...
>
>> +    description:
>> +      Set what happens on watchdog timeout. If this bit is set the
>> +      watchdog timeout triggers SHUTDOWN, if cleared the watchdog triggers
>> +      POWERDOWN. Can be 0 or 1.
>
>... but you say "can be 0 or 1". Does this refer to the bit value, or
>the property? There are no in-kernel users of this property as far as a
>quick grep shows so it is a bi hard to tell.
>
>Otherwise, I'm happy with this.
>
>Thanks,
>Conor.

Hello, thank you for your review!

Good point. 
It looks like it is related to property itself. 

I checked other bindings, like https://www.kernel.org/doc/Documentation/devicetree/bindings/iio/adc/adi%2Cad7192.yaml . They have fields of type boolean with description “When this bit is set to 1”.
So I put it as boolean.

I have just checked a couple more, and looks like they are mostly uint32 types with enum, when it goes about 0, 1 bit value in a description.  
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1]

I will update. 

Thank you.

On Sat, Oct 14, 2023 at 06:49:42PM +0200, Nik Bune wrote:
> >This property is a boolean...
> >
> >> +    description:
> >> +      Set what happens on watchdog timeout. If this bit is set the
> >> +      watchdog timeout triggers SHUTDOWN, if cleared the watchdog triggers
> >> +      POWERDOWN. Can be 0 or 1.
> >
> >... but you say "can be 0 or 1". Does this refer to the bit value, or
> >the property? There are no in-kernel users of this property as far as a
> >quick grep shows so it is a bi hard to tell.
> >
> >Otherwise, I'm happy with this.
> >
> >Thanks,
> >Conor.
> 
> Hello, thank you for your review!
> 
> Good point. 
> It looks like it is related to property itself. 
> 
> I checked other bindings, like https://www.kernel.org/doc/Documentation/devicetree/bindings/iio/adc/adi%2Cad7192.yaml . They have fields of type boolean with description “When this bit is set to 1”.
> So I put it as boolean.
> 
> I have just checked a couple more, and looks like they are mostly uint32 types with enum, when it goes about 0, 1 bit value in a description.  
> $ref: /schemas/types.yaml#/definitions/uint32
> enum: [0, 1]

It _seems_ like the intention was for this to be an enum, now that I
re-read the description, since it is being used to override the
behaviour from the OTP.

With that changed
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

Thanks,
Conor.