linux-kernel - Re: [PATCH v3 2/3] clk: divider: Switch from .round_rate to .determine

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Message-ID: <162507835549.3331010.7414706391498029785@swboyd.mtv.corp.google.com>
Date:   Wed, 30 Jun 2021 11:39:15 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        linux-clk@...r.kernel.org, mturquette@...libre.com
Cc:     narmstrong@...libre.com, jbrunet@...libre.com,
        khilman@...libre.com, linux-kernel@...r.kernel.org,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: Re: [PATCH v3 2/3] clk: divider: Switch from .round_rate to .determine_rate by default

Quoting Martin Blumenstingl (2021-06-27 15:39:58)
> .determine_rate is meant to replace .round_rate. The former comes with a
> benefit which is especially relevant on 32-bit systems: since
> .determine_rate uses an "unsigned long" (compared to a "signed long"
> which is used by .round_rate) the maximum value on 32-bit systems
> increases from 2^31 (or approx. 2.14GHz) to 2^32 (or approx. 4.29GHz).
> Switch to a .determine_rate implementation by default so 32-bit systems
> can benefit from the increased maximum value as well as so we have one
> fewer user of .round_rate.
> 
> Reviewed-by: Jerome Brunet <jbrunet@...libre.com>
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
> ---

Applied to clk-next