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SubjectRe: [PATCH v2 1/2] dt-bindings: watchdog: Add Apple Watchdog
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On 02/12/2021 23.43, Guenter Roeck wrote:
> On Tue, Nov 30, 2021 at 05:18:08PM +0100, Sven Peter wrote:
>> Apple SoCs come with a simple embedded watchdog. This watchdog is also
>> required in order to reset the SoC.
>>
>> Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
>> Reviewed-by: Rob Herring <robh@kernel.org>
>> Signed-off-by: Sven Peter <sven@svenpeter.dev>
>
> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
>
>> ---
>> v1 --> v2:
>> - add Mark's and Rob's r-b tags
>>
>> .../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#"
>> +
>> +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 360e9aa0205d..859201bbd4e8 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -1750,6 +1750,7 @@ 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
>>
>

I've gone ahead and applied this patch to the asahi-soc/dt tree, so we
can build off of that to add the DT nodes.

Sven, can you spin a v3 with the MAINTAINERS split and just the driver
itself, without this patch? I imagine Guenter will want to take the
driver itself through the linux-watchdog tree.

--
Hector Martin (marcan@marcan.st)
Public Key: https://mrcn.st/pub

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