linux-kernel - Re: [PATCH 1/2] dt-bindings: rtc: nxp,pcf85063: add 'no-battery' property

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Message-ID: <652aa23b-ba12-42c3-94b7-8d0bbe548aec@oss.nxp.com>
Date: Thu, 10 Apr 2025 17:51:06 +0300
From: Ciprian Marian Costea <ciprianmarian.costea@....nxp.com>
To: Frank Li <Frank.li@....com>
Cc: Alexandre Belloni <alexandre.belloni@...tlin.com>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Alexander Stein <alexander.stein@...tq-group.com>,
 linux-rtc@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, s32@....com, imx@...ts.linux.dev,
 Christophe Lizzi <clizzi@...hat.com>, Alberto Ruiz <aruizrui@...hat.com>,
 Enric Balletbo <eballetb@...hat.com>, Eric Chanudet <echanude@...hat.com>,
 Larisa Grigore <larisa.grigore@....com>
Subject: Re: [PATCH 1/2] dt-bindings: rtc: nxp,pcf85063: add 'no-battery'
 property

On 4/10/2025 5:46 PM, Frank Li wrote:
> On Thu, Apr 10, 2025 at 11:25:47AM +0300, Ciprian Costea wrote:
>> From: Ciprian Marian Costea <ciprianmarian.costea@....nxp.com>
>>
>> In case the RTC is not linked to any battery, the oscillator will
>> be stopped at startup, triggering a SW reset command for the PCF85063 RTC.
>> For this setup, introduce 'no-battery' property which can be used to
>> manually start the oscillator.
>>
>> Co-developed-by: Larisa Grigore <larisa.grigore@....com>
>> Signed-off-by: Larisa Grigore <larisa.grigore@....com>
>> Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@....nxp.com>
>> ---
>>   Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml | 5 +++++
>>   1 file changed, 5 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
>> index 2f892f8640d1..b342eb13fb2e 100644
>> --- a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
>> +++ b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
>> @@ -36,6 +36,11 @@ properties:
>>       enum: [7000, 12500]
>>       default: 7000
>>
>> +  no-battery:
>> +    description: Used in case the RTC is not linked to any battery so the
>> +      oscillator is stopped at startup.
>> +    type: boolean
> 
> Can you use optional regulator such as, vbat-supply?
> 
> Frank
> 

Hello Frank,

Please disregard this patchset, as stated in the next patch review [1]

[1] 
https://lore.kernel.org/all/e64083ee-3374-4bdf-92a3-ce91e1402b13@oss.nxp.com/

Regards,
Ciprian

>> +
>>     clock:
>>       $ref: /schemas/clock/fixed-clock.yaml
>>       description:
>> --
>> 2.45.2
>>