linux-kernel - Re: [PATCH v4 4/5] clk: twl: add clock driver for TWL6032

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Date:   Thu, 19 Oct 2023 09:18:35 +0200
From:   Andreas Kemnade <andreas@...nade.info>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     bcousson@...libre.com, conor+dt@...nel.org,
        devicetree@...r.kernel.org, dmitry.torokhov@...il.com,
        krzysztof.kozlowski+dt@...aro.org, lee@...nel.org,
        linux-clk@...r.kernel.org, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
        mturquette@...libre.com, robh+dt@...nel.org, tony@...mide.com
Subject: Re: [PATCH v4 4/5] clk: twl: add clock driver for TWL6032

Am Wed, 18 Oct 2023 18:20:22 -0700
schrieb Stephen Boyd <sboyd@...nel.org>:

> Quoting Andreas Kemnade (2023-09-16 03:05:14)
> > The TWL6032 has some clock outputs which are controlled like
> > fixed-voltage regulators, in some drivers for these chips
> > found in the wild, just the regulator api is abused for controlling
> > them, so simply use something similar to the regulator functions.
> > Due to a lack of hardware available for testing, leave out the
> > TWL6030-specific part of those functions.
> > 
> > Signed-off-by: Andreas Kemnade <andreas@...nade.info>
> > ---  
> 
> Did you want me to pick this up in clk tree?
> 
> Acked-by: Stephen Boyd <sboyd@...nel.org>
> 
Well, Lee has picked up 1-3 of this series, so I think it is a good idea
if you take it. I do not think it will make things any easier if it goes
through Tony's tree because part 5 is a bit tricky.
If picked up independently (of the whole set and not only part 4), there
will be a range of commits were WLAN will not work at all instead of
basically working randomly by the clock is enabled for some reason (can
happen if warm-booted from the vendor kernel).

So IMHO for part 5 we have to decide wether to decide if above is
considered to break bisectability and take the patch for 6.8 or
ignore that and take it for 6.7.

But no matter how we decide, that should not affect the route for this
part 4. So it is a good idea to have it through the clk tree.

Regrads,
Andreas