Re: [PATCH RFC] rtc: m41t80: Support SMBus adapters without I2C block transfers

[Maciej W. Rozycki]

On Tue, 3 Nov 2026, Florian Fainelli wrote:

> Maciej W. Rozycki proposed SMBus-only support for this RTC family in
> 2008. The same SiByte limitation was discussed again in 2018, including
> register latching, seconds rechecks and a possible regmap conversion.
> This change revisits that approach using the current I2C helpers.

 Thank you for following up on this.  I've always meant to get back to 
this stuff sometime, but given so many other outstanding matters to deal 
with I am really glad to get a helpful hand.

 Later I'll have a deeper look at and do some further verification of your 
proposal, however meanwhile here are corresponding lore.kernel.org links 
for the messages referred:

> Link: https://lkml.rescloud.iu.edu/hypermail/linux/kernel/0805.1/1778.html

Link: https://lore.kernel.org/r/Pine.LNX.4.55.0805130254420.535@xxxxxxxxxxxxxxxxxxx/

> Link: https://lkml.rescloud.iu.edu/1811.1/07408.html

Link: https://lore.kernel.org/r/alpine.LFD.2.21.1811141234140.21654@xxxxxxxxxxxxxxxxxxxx/

-- which I believe are preferable, since under our supervision.

  Maciej