From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com>,
"Mike Turquette" <mturquette@linaro.org>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Russell King" <linux@arm.linux.org.uk>,
"Stephen Boyd" <sboyd@codeaurora.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"Michal Simek" <michal.simek@xilinx.com>,
"cpufreq@vger.kernel.org" <cpufreq@vger.kernel.org>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [RFC PATCH 2/5] clk: Introduce 'clk_round_rate_nearest()'
Date: Mon, 26 May 2014 13:47:44 +0200 [thread overview]
Message-ID: <9956935.0oj56vcaUh@vostro.rjw.lan> (raw)
In-Reply-To: <CAKohpomam0qKdkMMMRDOfWN9QnZ3DzCviV=RuZ5f_7JbmYNDNw@mail.gmail.com>
On Monday, May 26, 2014 04:37:13 PM Viresh Kumar wrote:
> On 26 May 2014 16:52, Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
> > I agree as far as the 64-bit thing goes, but is switching to Hz really
> > necessary?
>
> Don't really know that.. It seems that there will always be problems with
> close enough frequencies whenever rounding is done.
Well, rounding errors are a problem, but question is if that is enough of
a problem to justify expanding the storage size twice. Also, that'd be
a performance hit on 32-bit systems.
> More can be elaborated by Soren.
OK
Rafael
next prev parent reply other threads:[~2014-05-26 11:47 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-14 22:30 [RFC PATCH 0/5] Frequency resolution in CCF vs. cpufreq Soren Brinkmann
2014-05-14 22:30 ` [RFC PATCH 1/5] cpufreq: stats: Allow small rounding errors Soren Brinkmann
2014-05-14 22:30 ` [RFC PATCH 2/5] clk: Introduce 'clk_round_rate_nearest()' Soren Brinkmann
2014-05-15 7:38 ` Uwe Kleine-König
2014-05-15 14:10 ` Sören Brinkmann
2014-05-19 0:51 ` Sören Brinkmann
2014-05-19 16:19 ` Uwe Kleine-König
2014-05-19 16:41 ` Sören Brinkmann
2014-05-19 17:29 ` Sören Brinkmann
2014-05-20 7:51 ` Uwe Kleine-König
2014-05-20 7:33 ` Uwe Kleine-König
2014-05-20 16:01 ` Sören Brinkmann
2014-05-20 17:48 ` Stephen Boyd
2014-05-20 21:48 ` Sören Brinkmann
2014-05-21 7:34 ` Uwe Kleine-König
2014-05-21 15:58 ` Sören Brinkmann
2014-05-21 18:23 ` Uwe Kleine-König
2014-05-21 20:19 ` Sören Brinkmann
2014-05-21 20:33 ` Mike Turquette
2014-05-22 18:03 ` Sören Brinkmann
2014-05-22 18:20 ` Uwe Kleine-König
2014-05-22 20:32 ` Sören Brinkmann
2014-05-22 21:03 ` Mike Turquette
2014-05-22 23:44 ` Sören Brinkmann
2014-05-23 1:37 ` Mike Turquette
2014-05-23 16:14 ` Sören Brinkmann
2014-05-26 6:29 ` Viresh Kumar
2014-05-26 11:22 ` Rafael J. Wysocki
2014-05-26 11:07 ` Viresh Kumar
2014-05-26 11:47 ` Rafael J. Wysocki [this message]
2014-05-26 21:52 ` Sören Brinkmann
2014-05-28 2:05 ` Mike Turquette
2014-05-28 16:17 ` Rafael J. Wysocki
2014-06-07 0:44 ` Sören Brinkmann
2014-05-14 22:30 ` [RFC PATCH 3/5] cpufreq: cpu0: Use clk_round_rate_nearest() Soren Brinkmann
2014-05-14 22:30 ` [RFC PATCH 4/5] ARM: zynq: dt: Use properly rounded frequencies in OPPs Soren Brinkmann
2014-05-14 22:30 ` [RFC PATCH 5/5] net: macb: Use clk_round_rate_nearest() API Soren Brinkmann
2014-05-15 6:12 ` [RFC PATCH 0/5] Frequency resolution in CCF vs. cpufreq Viresh Kumar
2014-05-15 14:05 ` Sören Brinkmann
2014-05-15 7:47 ` Uwe Kleine-König
2014-05-15 12:14 ` Nishanth Menon
2014-05-15 14:00 ` Sören Brinkmann
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