Re: [PATCH v4 14/16] power: supply: bd71828: Support wider register addresses

[Matti Vaittinen <mazziesaccount@gmail.com>]

Thanks Andreas,

On 14/11/2025 13:15, Andreas Kemnade wrote:
> On Thu, 13 Nov 2025 10:55:39 +0200
> Matti Vaittinen <matti.vaittinen@linux.dev> wrote:
> 
>> As a side note, we can reduce the "wasted space / member / instance" from
>> 3 bytes to 1 byte, by using u16 instead of the unsigned int if needed. I
>> rather use unsigned int to be initially prepared for devices with 32 bit
>> registers if there is no need to count bytes.
> 
> Well, this is totally internal to the module, so no ABI/API changes, so
> there is no advantage of using 32bit now I think. We can switch any time.

The only advantage is to avoid the churn if 32bit ICs are to be added.

> But we have 32bit stuff in the regmap cache anyways, so that is not above
> the general level of wasting space.

Exactly. And, I am not sure if sparing ~hundred bytes is worth the 
hassle - even if it is hassle internal to the driver. But yeah, we can 
squeeze a few bytes if it is seen beneficial. That's why I mentioned it 
here :)

Yours,
	-- Matti

---
Matti Vaittinen
Linux kernel developer at ROHM Semiconductors
Oulu Finland

~~ When things go utterly wrong vim users can always type :help! ~~