linux-kernel - Re: [PATCH] iio:adc:twl6030: Enable measurements of VUSB, VBAT and others

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Message-ID: <20221204212751.2de52084@aktux>
Date:   Sun, 4 Dec 2022 21:27:51 +0100
From:   Andreas Kemnade <andreas@...nade.info>
To:     Jonathan Cameron <jic23@...nel.org>
Cc:     lars@...afoo.de, jiasheng@...as.ac.cn, paul@...pouillou.net,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tony Lindgren <tony@...mide.com>
Subject: Re: [PATCH] iio:adc:twl6030: Enable measurements of VUSB, VBAT and
 others

On Sun, 4 Dec 2022 15:41:52 +0000
Jonathan Cameron <jic23@...nel.org> wrote:

> On Thu,  1 Dec 2022 19:16:35 +0100
> Andreas Kemnade <andreas@...nade.info> wrote:
> 
> > Some inputs need to be wired up to produce proper measurements,
> > without this change only near zero values are reported.
> > 
> > Signed-off-by: Andreas Kemnade <andreas@...nade.info>  
> 
> Sounds like a fix to me.  If so, Fixes tag?

seems to be there since the beginning, to it would be
Fixes: 1696f36482e70 ("iio: twl6030-gpadc: TWL6030, TWL6032 GPADC driver")

I think it was just not used with the charger (which is not in mainline yet),
so it was probably ignored.

> 
> Anything in here we should be turning off again if the driver is removed 
> or toggling on suspend? If not, other than the space below this looks fine to me.
> 
I would consider that as configuration, comparing with the nearest relative twl4030,
there a similar bit is set in the probe() without disabling it in the remove().

But I think we should set TWL6030_GPADCR in remove() as we do in suspend(),
but that is another fix.

Regards,
Andreas