[PATCH v5 1/4] dt-bindings: rtc: Document NVIDIA VRS RTC

Shubhi Garg shgarg at nvidia.com
Fri Jul 25 08:58:32 PDT 2025



On 24/07/25 4:20 pm, Jon Hunter wrote:
> 
> On 24/07/2025 11:06, Krzysztof Kozlowski wrote:
>> On 24/07/2025 11:41, Jon Hunter wrote:
>>>
>>> On 24/07/2025 08:59, Krzysztof Kozlowski wrote:
>>>> On Wed, Jul 23, 2025 at 01:03:40PM +0000, Shubhi Garg wrote:
>>>>> +description:
>>>>> +  NVIDIA VRS (Voltage Regulator Specification) RTC provides 32kHz 
>>>>> RTC clock
>>>>> +  support with backup battery for system timing. It provides alarm 
>>>>> functionality
>>>>> +  to wake system from suspend and shutdown state. The device also 
>>>>> acts as an
>>>>> +  interrupt controller for managing interrupts from the VRS.
>>>>> +
>>>>> +properties:
>>>>> +  compatible:
>>>>> +    const: nvidia,vrs10-rtc
>>>>
>>>> Nothing improved. You never replied to comments and then replaced one
>>>> redundant word into other redundant word.
>>>>
>>>> Respond to review or implement it fully, not partially.
>>>>
>>>> Or add COMPLETE bindings, not partial ones. See writing bindings doc.
>>>
>>> OK, right so the DT binding should describe the overall PMIC device,
>>> even though the driver needs to support the RTC.

VRS-10 is the device name. VRS-10 has an I2C interface and implements a 
power sequencer, RTC , 32kHZ clock output. From software perspective, we 
are handling VRS-10 interrupts and providing RTC driver support. I will 
add complete VRS-10 information in bindings.

>>
>> This is not a driver patch. This is patch for hardware. Sending
>> incomplete pieces of a device, without complete picture is really not
>> the right way. Knowing this is part of PMIC this should be rejected, but
>> how can we decide on that if contributor never tells us this is a part
>> of PMIC?
> 
> Yes I understand that this is not a driver patch and must describe the 
> hardware. It is a simple misunderstanding because it was rejected as an 
> MFD, but we should not have then made the DT look like only a RTC 
> device. This is a mistake on our side and we will fix.
> 

I acknowledge, will improve bindings by describing VRS-10 hardware for 
clear understanding.

-- 
Regards,
Shubhi




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