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SubjectRe: [PATCH RESEND V2 1/4] dt-bindings: fsl: scu: add watchdog binding
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On 2/22/19 11:52 AM, Rob Herring wrote:
> On Mon, Feb 18, 2019 at 06:53:48AM +0000, Anson Huang wrote:
>> Add i.MX8QXP system controller watchdog binding.
>>
>> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
>> ---
>> Changes since V1:
>> - update dts node name to "watchdog";
>> ---
>> Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt | 10 ++++++++++
>> 1 file changed, 10 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
>> index 4b79751..f388ec6 100644
>> --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
>> +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
>> @@ -136,6 +136,12 @@ Required properties:
>> resource id for thermal driver to get temperature via
>> SCU IPC.
>>
>> +Watchdog bindings based on SCU Message Protocol
>> +------------------------------------------------------------
>> +
>> +Required properties:
>> +- compatible: should be "fsl,imx8qxp-sc-wdt";
>> +
>> Example (imx8qxp):
>> -------------
>> lsio_mu1: mailbox@5d1c0000 {
>> @@ -188,6 +194,10 @@ firmware {
>> tsens-num = <1>;
>> #thermal-sensor-cells = <1>;
>> };
>> +
>> + watchdog: watchdog {
>> + compatible = "fsl,imx8qxp-sc-wdt";
>
> As-is, there's no reason for this to be in DT. The parent node's driver
> can instantiate the wdog.
>

As the driver is currently written, you are correct, since it doesn't accept
watchdog timeout configuration through devicetree.

Question is if that is intended. Is it ?

Thanks,
Guenter

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