linux-kernel - Re: [PATCH v3 0/8] clk: sunxi-ng: Consider alternative parent rates when determining NKM clock rate

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Message-ID: <874jmls5f4.fsf@oltmanns.dev>
Date:   Mon, 03 Jul 2023 11:36:15 +0200
From:   Frank Oltmanns <frank@...manns.dev>
To:     Maxime Ripard <maxime@...no.tech>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Andre Przywara <andre.przywara@....com>,
        Roman Beranek <me@...y.cz>, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/8] clk: sunxi-ng: Consider alternative parent rates
 when determining NKM clock rate


On 2023-07-03 at 09:51:22 +0200, Maxime Ripard <maxime@...no.tech> wrote:
> [[PGP Signed Part:Undecided]]
> Hi,
>
> On Sun, Jul 02, 2023 at 07:55:19PM +0200, Frank Oltmanns wrote:
>> Changes in v3:
>>  - Use dedicated function for finding the best rate in cases where an
>>    nkm clock supports setting its parent's rate, streamlining it with
>>    the structure that is used in other sunxi-ng ccus such as ccu_mp
>>    (PATCH 1).
>>  - Therefore, remove the now obsolete comments that were introduced in
>>    v2 (PATCH 1).
>>  - Remove the dedicated function for calculating the optimal parent rate
>>    for nkm clocks that was introduced in v2. Instead use a simple
>>    calculation and require the parent clock to select the closest rate to
>>    achieve optimal results (PATCH 1).
>>  - Therefore, add support to set the closest rate for nm clocks (because
>>    pll-mipi's parent pll-video0 is an nm clock) and all clock types that
>>    are descendants of a64's pll-video0, i.e., nkm, mux, and div (PATCH 3
>>    et. seq.).
>>  - Link to v2: https://lore.kernel.org/all/20230611090143.132257-1-frank@oltmanns.dev/
>
> Thanks so much for that new version. I know it's been a long discussion,
> but it definitely moves in the right direction and we're fairly close to
> a final version now.
>

I think it was a good discussion. So, thank you for that! I appreciate
your feedback even though we don't always agree. :)

Thanks,
  Frank

>
> Maxime
>
> [[End of PGP Signed Part]]