linux-kernel - Re: [PATCH RFC v1 3/3] clk: meson: pll: switch to determine

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Date:   Tue, 18 May 2021 22:17:19 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     Jerome Brunet <jbrunet@...libre.com>
Cc:     mturquette@...libre.com, sboyd@...nel.org,
        Neil Armstrong <narmstrong@...libre.com>,
        linux-clk@...r.kernel.org, khilman@...libre.com,
        linux-kernel@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH RFC v1 3/3] clk: meson: pll: switch to determine_rate for
 the PLL ops

Hi Jerome,

On Tue, May 18, 2021 at 9:50 AM Jerome Brunet <jbrunet@...libre.com> wrote:
>
>
> On Mon 17 May 2021 at 22:37, Martin Blumenstingl <martin.blumenstingl@...glemail.com> wrote:
>
> > This increases the maxmium supported frequency on 32-bit systems from
> > 2^31 (signed long as used by clk_ops.round_rate, maximum value:
> > approx. 2.14GHz) to 2^32 (unsigned long as used by
> > clk_ops.determine_rate, maximum value: approx. 4.29GHz).
> > On Meson8/8b/8m2 the HDMI PLL and it's OD (post-dividers) are
> > capable of running at up to 2.97GHz. So switch the divider
> > implementation in clk-regmap to clk_ops.determine_rate to support these
> > higher frequencies on 32-bit systems.
> >
> > Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
>
> Looks good. I see no reason to keep this one as RFC.
Great, thanks for checking!

> I can take it directly if this is OK with you ?
That would be amazing.
Obviously no objections from my side :-)


Best regards,
Martin