RE: [EXT] Re: [PATCH 1/2] dt-bindings: watchdog: marvell octeonTX2 GTI system atchdog driver

[Bharat Bhushan]

Please see inline 

> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Sent: Friday, April 14, 2023 5:02 PM
> To: Bharat Bhushan <bbhushan2@xxxxxxxxxxx>; wim@xxxxxxxxxxxxxxxxxx;
> linux@xxxxxxxxxxxx; robh+dt@xxxxxxxxxx; krzysztof.kozlowski+dt@xxxxxxxxxx;
> linux-watchdog@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx
> Subject: Re: [EXT] Re: [PATCH 1/2] dt-bindings: watchdog: marvell octeonTX2 GTI
> system atchdog driver
> 
> On 14/04/2023 13:29, Bharat Bhushan wrote:
> 
> >
> >>
> >>> +
> >>> +examples:
> >>> +  - |
> >>> +    soc {
> >>> +        #address-cells = <2>;
> >>> +        #size-cells = <2>;
> >>> +
> >>> +        watchdog@802000040000 {
> >>> +          compatible = "marvell-octeontx2-wdt";
> >>> +          reg = <0x8020 0x40000 0x0 0x20000>;
> >>
> >> Are you sure that this is correct DTS? 32-bit numbers are usually
> >> 8-digit long. Plus size of 0x20000 is crazy huge. And the unit
> >> address is a bit unusual. Are you sure dtc W=1 does not say about any errors in
> your DTS?
> >
> > Each cell is 32bit, so if we specify less than upper values becomes zeros (0s).
> 
> ... and what is the convention/coding style of your subarch? Is to have short or 0-
> padded reg addresses?
> 
> Anyway, I have doubts this was tested, so please confirm that dtbs W=1 and
> dtbs_check produce no errors on your DTS. BTW, where is the DTS?

Our device tree are part of firmware and not in Linux. I will check if dtb compilation used "W=1" flag.
With this device tree node driver works expectedly.

Thanks
-Bharat

> 
> Best regards,
> Krzysztof