From: Vlad Zakharov <Vladislav.Zakharov@synopsys.com>
To: "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"viresh.kumar@linaro.org" <viresh.kumar@linaro.org>,
"mturquette@baylibre.com" <mturquette@baylibre.com>,
"sboyd@codeaurora.org" <sboyd@codeaurora.org>,
"rjw@rjwysocki.net" <rjw@rjwysocki.net>,
"linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>,
"linux-snps-arc@lists.infradead.org"
<linux-snps-arc@lists.infradead.org>
Subject: cpufreq: get cpufreq_frequency_table from clk driver
Date: Tue, 21 Feb 2017 11:13:35 +0000 [thread overview]
Message-ID: <1487675614.25108.30.camel@synopsys.com> (raw)
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WARNING: multiple messages have this Message-ID (diff)
From: Vlad Zakharov <Vladislav.Zakharov@synopsys.com>
To: "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"viresh.kumar@linaro.org" <viresh.kumar@linaro.org>,
"mturquette@baylibre.com" <mturquette@baylibre.com>,
"sboyd@codeaurora.org" <sboyd@codeaurora.org>,
"rjw@rjwysocki.net" <rjw@rjwysocki.net>,
"linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>,
"linux-snps-arc@lists.infradead.org"
<linux-snps-arc@lists.infradead.org>
Subject: cpufreq: get cpufreq_frequency_table from clk driver
Date: Tue, 21 Feb 2017 11:13:35 +0000 [thread overview]
Message-ID: <1487675614.25108.30.camel@synopsys.com> (raw)
Hello,
I am trying to implement a cpufreq driver for ARCHS cpu.
And I faced with one question I am not able to answer myself. cpufreq framework allows us using cpufreq frequency tables
that store available for current policy range of frequencies with any additional data. As I understand for example it
can be clock configurations for this particular frequency.
Also I have a clk driver that manages actual cpu frequency. In fact it uses very similar tables that contain frequencies
and corresponding values of clock configurations registers that are to be set up with current frequency.
So the question is can I get such tables from clk driver somehow? I would be very convenient: this tables differs for
ARCHS CPU. E.g. on different boards it is clocked by different PLLs and oscillators.
Do you know any way to get the tables from clk driver? Any suggestions or comments might be very helpful.
Thanks!
--
Best regards,
Vlad Zakharov <vzakhar@synopsys.com>
WARNING: multiple messages have this Message-ID (diff)
From: Vladislav.Zakharov@synopsys.com (Vlad Zakharov)
To: linux-snps-arc@lists.infradead.org
Subject: cpufreq: get cpufreq_frequency_table from clk driver
Date: Tue, 21 Feb 2017 11:13:35 +0000 [thread overview]
Message-ID: <1487675614.25108.30.camel@synopsys.com> (raw)
Hello,
I am trying to implement a cpufreq driver for ARCHS cpu.
And I faced with one question I am not able to answer myself. cpufreq framework allows us using cpufreq frequency tables
that store available for current policy range of frequencies with any additional data. As I understand for example it
can be clock configurations for this particular frequency.
Also I have a clk driver that manages actual cpu frequency. In fact it uses very similar tables that contain frequencies
and corresponding values of clock configurations registers that are to be set up with current frequency.
So the question is can I get such tables from clk driver somehow? I would be very convenient: this tables differs for
ARCHS CPU. E.g. on different boards it is clocked by different PLLs and oscillators.
Do you know any way to get the tables from clk driver? Any suggestions or comments might be very helpful.
Thanks!
--
Best regards,
Vlad Zakharov <vzakhar at synopsys.com>
next reply other threads:[~2017-02-21 11:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-21 11:13 Vlad Zakharov [this message]
2017-02-21 11:13 ` cpufreq: get cpufreq_frequency_table from clk driver Vlad Zakharov
2017-02-21 11:13 ` Vlad Zakharov
2017-02-23 4:54 ` Viresh Kumar
2017-02-23 4:54 ` Viresh Kumar
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