cpufreq.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Thomas Renninger <trenn@suse.de>
To: viresh.kumar@linaro.org
Cc: rjw@rjwysocki.net, cpufreq@vger.kernel.org, thomas.mingarelli@hp.com
Subject: CPUFREQ: Try to load pcc driver on HP ProLiants automatically
Date: Wed, 23 Apr 2014 15:49:23 +0200	[thread overview]
Message-ID: <7669060.dKLoxkfpfu@skinner> (raw)

HP ProLiants are sold with CPU frequency controlled by BIOS by default.
The pcc-cpufreq driver still exports some frequency info to userspace and
should be tried to get loaded on these platforms.

Successfully tested on a recent ProLiant machine:
  - without this patch no pcc-cpufreq driver loaded, no frequency info
  - with this patch the driver got autoloaded

Signed-off-by: Thomas Renninger <trenn@suse.de>

diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c
index 728a2d8..ff1ebd0 100644
--- a/drivers/cpufreq/pcc-cpufreq.c
+++ b/drivers/cpufreq/pcc-cpufreq.c
@@ -603,6 +603,8 @@ static void __exit pcc_cpufreq_exit(void)
 	free_percpu(pcc_cpu_info);
 }
 
+MODULE_ALIAS("dmi:*:svnHP:pnProLiant*:*");
+
 MODULE_AUTHOR("Matthew Garrett, Naga Chumbalkar");
 MODULE_VERSION(PCC_VERSION);
 MODULE_DESCRIPTION("Processor Clocking Control interface driver");


             reply	other threads:[~2014-04-23 13:49 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-23 13:49 Thomas Renninger [this message]
2014-04-24  4:04 ` CPUFREQ: Try to load pcc driver on HP ProLiants automatically 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=7669060.dKLoxkfpfu@skinner \
    --to=trenn@suse.de \
    --cc=cpufreq@vger.kernel.org \
    --cc=rjw@rjwysocki.net \
    --cc=thomas.mingarelli@hp.com \
    --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).