diff mbox series

[1/2] dt-bindings: watchdog: Add Apple Watchdog

Message ID 20211113094732.73889-1-sven@svenpeter.dev (mailing list archive)
State New, archived
Headers show
Series [1/2] dt-bindings: watchdog: Add Apple Watchdog | expand

Commit Message

Sven Peter Nov. 13, 2021, 9:47 a.m. UTC
Apple SoCs come with a simple embedded watchdog. This watchdog is also
required in order to reset the SoC.

Signed-off-by: Sven Peter <sven@svenpeter.dev>
---
 .../bindings/watchdog/apple,wdt.yaml          | 52 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 53 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/apple,wdt.yaml

Comments

Mark Kettenis Nov. 13, 2021, 9:07 p.m. UTC | #1
> From: Sven Peter <sven@svenpeter.dev>
> Date: Sat, 13 Nov 2021 10:47:31 +0100
> 
> Apple SoCs come with a simple embedded watchdog. This watchdog is also
> required in order to reset the SoC.
> 
> Signed-off-by: Sven Peter <sven@svenpeter.dev>
> ---
>  .../bindings/watchdog/apple,wdt.yaml          | 52 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 53 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
> new file mode 100644
> index 000000000000..e58c56a6fdf6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
> @@ -0,0 +1,52 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/apple,wdt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Apple SoC Watchdog
> +
> +allOf:
> +  - $ref: "watchdog.yaml#"

I believew this should be:

  - $ref: /schemas/watchdog/watchdog.yaml#

with that fixed:

Reviewed-by: Mark Kettenis <kettenis@openbsd.org>


> +
> +maintainers:
> +  - Sven Peter <sven@svenpeter.dev>
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - apple,t8103-wdt
> +          - apple,t6000-wdt
> +      - const: apple,wdt
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - interrupts
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/apple-aic.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    wdt: watchdog@50000000 {
> +        compatible = "apple,t8103-wdt", "apple,wdt";
> +        reg = <0x50000000 0x4000>;
> +        clocks = <&clk>;
> +        interrupts = <AIC_IRQ 123 IRQ_TYPE_LEVEL_HIGH>;
> +    };
> +
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 5b7a13f706fa..ba480837724d 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1749,6 +1749,7 @@ F:	Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
>  F:	Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
>  F:	Documentation/devicetree/bindings/pci/apple,pcie.yaml
>  F:	Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
> +F:	Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
>  F:	arch/arm64/boot/dts/apple/
>  F:	drivers/i2c/busses/i2c-pasemi-core.c
>  F:	drivers/i2c/busses/i2c-pasemi-platform.c
> -- 
> 2.25.1
> 
>
Sven Peter Nov. 14, 2021, 11:40 a.m. UTC | #2
On Sat, Nov 13, 2021, at 22:07, Mark Kettenis wrote:
>> From: Sven Peter <sven@svenpeter.dev>
>> Date: Sat, 13 Nov 2021 10:47:31 +0100
>> 
>> Apple SoCs come with a simple embedded watchdog. This watchdog is also
>> required in order to reset the SoC.
>> 
>> Signed-off-by: Sven Peter <sven@svenpeter.dev>
>> ---
>>  .../bindings/watchdog/apple,wdt.yaml          | 52 +++++++++++++++++++
>>  MAINTAINERS                                   |  1 +
>>  2 files changed, 53 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
>> 
>> diff --git a/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
>> new file mode 100644
>> index 000000000000..e58c56a6fdf6
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
>> @@ -0,0 +1,52 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/watchdog/apple,wdt.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Apple SoC Watchdog
>> +
>> +allOf:
>> +  - $ref: "watchdog.yaml#"
>
> I believew this should be:
>
>   - $ref: /schemas/watchdog/watchdog.yaml#
>
> with that fixed:
>
> Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
>

Thanks for the review!
Almost all the other YAML watchdog bindings just use '$ref: "watchdog.yaml#"'.
Only arm,sp805.yaml uses '$ref: /schemas/watchdog/watchdog.yaml#'.


Sven
Mark Kettenis Nov. 14, 2021, 11:58 a.m. UTC | #3
> Date: Sun, 14 Nov 2021 12:40:48 +0100
> From: "Sven Peter" <sven@svenpeter.dev>
> 
> On Sat, Nov 13, 2021, at 22:07, Mark Kettenis wrote:
> >> From: Sven Peter <sven@svenpeter.dev>
> >> Date: Sat, 13 Nov 2021 10:47:31 +0100
> >> 
> >> Apple SoCs come with a simple embedded watchdog. This watchdog is also
> >> required in order to reset the SoC.
> >> 
> >> Signed-off-by: Sven Peter <sven@svenpeter.dev>
> >> ---
> >>  .../bindings/watchdog/apple,wdt.yaml          | 52 +++++++++++++++++++
> >>  MAINTAINERS                                   |  1 +
> >>  2 files changed, 53 insertions(+)
> >>  create mode 100644 Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
> >> 
> >> diff --git a/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
> >> new file mode 100644
> >> index 000000000000..e58c56a6fdf6
> >> --- /dev/null
> >> +++ b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
> >> @@ -0,0 +1,52 @@
> >> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> >> +%YAML 1.2
> >> +---
> >> +$id: http://devicetree.org/schemas/watchdog/apple,wdt.yaml#
> >> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> >> +
> >> +title: Apple SoC Watchdog
> >> +
> >> +allOf:
> >> +  - $ref: "watchdog.yaml#"
> >
> > I believew this should be:
> >
> >   - $ref: /schemas/watchdog/watchdog.yaml#
> >
> > with that fixed:
> >
> > Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
> >
> 
> Thanks for the review!
> Almost all the other YAML watchdog bindings just use '$ref: "watchdog.yaml#"'.
> Only arm,sp805.yaml uses '$ref: /schemas/watchdog/watchdog.yaml#'.

Hmm, maybe it is ok since the file can be found in the same directory.
Guess it is up to robh then.  Feel free to keep my Reviewed-by
regardless.
Rob Herring Nov. 29, 2021, 9:23 p.m. UTC | #4
On Sun, Nov 14, 2021 at 12:58:20PM +0100, Mark Kettenis wrote:
> > Date: Sun, 14 Nov 2021 12:40:48 +0100
> > From: "Sven Peter" <sven@svenpeter.dev>
> > 
> > On Sat, Nov 13, 2021, at 22:07, Mark Kettenis wrote:
> > >> From: Sven Peter <sven@svenpeter.dev>
> > >> Date: Sat, 13 Nov 2021 10:47:31 +0100
> > >> 
> > >> Apple SoCs come with a simple embedded watchdog. This watchdog is also
> > >> required in order to reset the SoC.
> > >> 
> > >> Signed-off-by: Sven Peter <sven@svenpeter.dev>
> > >> ---
> > >>  .../bindings/watchdog/apple,wdt.yaml          | 52 +++++++++++++++++++
> > >>  MAINTAINERS                                   |  1 +
> > >>  2 files changed, 53 insertions(+)
> > >>  create mode 100644 Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
> > >> 
> > >> diff --git a/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
> > >> new file mode 100644
> > >> index 000000000000..e58c56a6fdf6
> > >> --- /dev/null
> > >> +++ b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
> > >> @@ -0,0 +1,52 @@
> > >> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > >> +%YAML 1.2
> > >> +---
> > >> +$id: http://devicetree.org/schemas/watchdog/apple,wdt.yaml#
> > >> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > >> +
> > >> +title: Apple SoC Watchdog
> > >> +
> > >> +allOf:
> > >> +  - $ref: "watchdog.yaml#"
> > >
> > > I believew this should be:
> > >
> > >   - $ref: /schemas/watchdog/watchdog.yaml#
> > >
> > > with that fixed:
> > >
> > > Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
> > >
> > 
> > Thanks for the review!
> > Almost all the other YAML watchdog bindings just use '$ref: "watchdog.yaml#"'.
> > Only arm,sp805.yaml uses '$ref: /schemas/watchdog/watchdog.yaml#'.
> 
> Hmm, maybe it is ok since the file can be found in the same directory.
> Guess it is up to robh then.  Feel free to keep my Reviewed-by
> regardless.

Either way is fine. It's just ../ paths I want to avoid.

Rob
Rob Herring Nov. 29, 2021, 9:24 p.m. UTC | #5
On Sat, 13 Nov 2021 10:47:31 +0100, Sven Peter wrote:
> Apple SoCs come with a simple embedded watchdog. This watchdog is also
> required in order to reset the SoC.
> 
> Signed-off-by: Sven Peter <sven@svenpeter.dev>
> ---
>  .../bindings/watchdog/apple,wdt.yaml          | 52 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 53 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
new file mode 100644
index 000000000000..e58c56a6fdf6
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
@@ -0,0 +1,52 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/apple,wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple SoC Watchdog
+
+allOf:
+  - $ref: "watchdog.yaml#"
+
+maintainers:
+  - Sven Peter <sven@svenpeter.dev>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - apple,t8103-wdt
+          - apple,t6000-wdt
+      - const: apple,wdt
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/apple-aic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    wdt: watchdog@50000000 {
+        compatible = "apple,t8103-wdt", "apple,wdt";
+        reg = <0x50000000 0x4000>;
+        clocks = <&clk>;
+        interrupts = <AIC_IRQ 123 IRQ_TYPE_LEVEL_HIGH>;
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 5b7a13f706fa..ba480837724d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1749,6 +1749,7 @@  F:	Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
 F:	Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
 F:	Documentation/devicetree/bindings/pci/apple,pcie.yaml
 F:	Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
+F:	Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
 F:	arch/arm64/boot/dts/apple/
 F:	drivers/i2c/busses/i2c-pasemi-core.c
 F:	drivers/i2c/busses/i2c-pasemi-platform.c