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From: Philipp Zabel <p.zabel@pengutronix.de>
To: linux-pm@vger.kernel.org
Cc: Shawn Guo <shawn.guo@linaro.org>, Zhang Rui <rui.zhang@intel.com>,
	Eduardo Valentin <eduardo.valentin@ti.com>,
	kernel@pengutronix.de
Subject: [PATCH 0/2] SoC specific trip points and alarm interrupt for imx_thermal
Date: Thu,  1 Aug 2013 18:33:10 +0200	[thread overview]
Message-ID: <1375374792-32326-1-git-send-email-p.zabel@pengutronix.de> (raw)

Hi,

After trying Siarhei Siamashka's cpuburn[1] on a consumer rated i.MX6Q
without any cooling implements, I feel like the 2 second polling interval
is not fast enough for sudden outbursts of high CPU activity.

Here is a first shot at using the alarm value comparator interrupt to react
to trip points more quickly (in this version hardware triggers measurements
at 10 Hz). For safer testing I've also made the passive trip point user
configurable.

regards
Philipp

[1] http://ssvb.github.io/2012/04/10/cpuburn-arm-cortex-a9.html


             reply	other threads:[~2013-08-01 16:33 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-01 16:33 Philipp Zabel [this message]
2013-08-01 16:33 ` [PATCH 1/2] thermal: imx: dynamic passive and SoC specific critical trip points Philipp Zabel
2013-08-04 14:20   ` Shawn Guo
2013-08-01 16:33 ` [PATCH 2/2] thermal: imx: implement thermal alarm interrupt handling Philipp Zabel
2013-08-05  3:22   ` Shawn Guo
2013-08-05  7:50     ` Philipp Zabel
2013-08-05  9:10       ` Shawn Guo

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