From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
To: rjw@rjwysocki.net, viresh.kumar@linaro.org
Cc: linux-pm@vger.kernel.org,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Subject: [PATCH 2/2] Documentation: cpufreq: Additional interface for acpi-cpufreq
Date: Mon, 29 Feb 2016 16:10:09 -0800 [thread overview]
Message-ID: <1456791009-950-3-git-send-email-srinivas.pandruvada@linux.intel.com> (raw)
In-Reply-To: <1456791009-950-1-git-send-email-srinivas.pandruvada@linux.intel.com>
Added new file for acpi-cpufreq driver, with explanation for
base_frequency.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
---
Documentation/cpu-freq/acpi-cpufreq-addition.txt | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
create mode 100644 Documentation/cpu-freq/acpi-cpufreq-addition.txt
diff --git a/Documentation/cpu-freq/acpi-cpufreq-addition.txt b/Documentation/cpu-freq/acpi-cpufreq-addition.txt
new file mode 100644
index 0000000..40efb22
--- /dev/null
+++ b/Documentation/cpu-freq/acpi-cpufreq-addition.txt
@@ -0,0 +1,20 @@
+Additional sysfs attribute for acpi-cpufreq
+
+In addition to the standard sysfs interface as defined in the
+user-guide.txt under section "Preferred Interface: sysfs",
+acpi-cpufreq can have following additional sysfs attribute:
+
+base_frequency: Max non-turbo frequency
+For example:
+scaling_available_frequencies displays list of available frequencies which
+can be used to set max/min or current scaling frequency.
+>cat scaling_available_frequencies
+2301000 2300000 2200000 2000000 1900000 1800000 1700000 1500000 1400000
+1300000 1100000 1000000 900000 800000 600000 500000
+If the base_frequency attribute is present, then any frequency above is
+purely opportunistic or turbo frequency. For example
+>cat base_frequency
+2200000
+Then in the above displayed list of scaling_available_frequencies, any
+frequency 2300000 or 2301000 is opportunistic or turbo frequency.
+
--
2.5.0
next prev parent reply other threads:[~2016-03-01 0:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-01 0:10 [PATCH 0/2] acpi-cpufreq: introduce base_frequency Srinivas Pandruvada
2016-03-01 0:10 ` [PATCH 1/2] cpufreq: acpi_cpufreq: base frequency attribute support Srinivas Pandruvada
2016-03-01 0:10 ` Srinivas Pandruvada [this message]
2016-03-01 2:39 ` [PATCH 2/2] Documentation: cpufreq: Additional interface for acpi-cpufreq Viresh Kumar
2016-03-01 2:33 ` [PATCH 0/2] acpi-cpufreq: introduce base_frequency Viresh Kumar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1456791009-950-3-git-send-email-srinivas.pandruvada@linux.intel.com \
--to=srinivas.pandruvada@linux.intel.com \
--cc=linux-pm@vger.kernel.org \
--cc=rjw@rjwysocki.net \
--cc=viresh.kumar@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).