OMAP2+: clock: add clockfw autoidle for iclks, OMAP2xxx
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Cover letter [PATCH 00/11] OMAP2+: clock: add clockfw autoidle for iclks, OMAP2xxx
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-----Original Message-----
From: Paul Walmsley [mailto:paul at pwsan.com]
Sent: Thursday, February 17, 2011 4:35 AM
To: Rajendra Nayak
Cc: linux-omap at vger.kernel.org; linux-arm-kernel at lists.infradead.org
Subject: RE: [PATCH 00/11] OMAP2+: clock: add clockfw autoidle for
iclks, OMAP2xxx
Quoted 10 lines · Rajendra Nayak
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Boot-tested on 3430sdp/4430sdp, with
CONFIG_PMand with !CONFIG_PM. suspend-offmode tested on 3430sdp and suspend-retmode on 4430sdp (with some out-of-tree patches)Thanks, will add Tested-by:s.
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Dynamic idle testing on 3430sdp showed me some very jerky debug
console
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the moment a 'echo 1 > /debug/pm_debug/sleep_while_idle' is done. This however seems to be the case even on 2.6.38-rc4 and not related to the current patch series.
Does enabling
CONFIG_OMAP2_DSSresolve the problem you're seeing?
Maybe, will try it out. Thanks for the tip.
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Will debug further, but seems to some 3430sdp specific issue, since
you
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did not see it on Beagleboard and seems it is not seen on OMAP3 zoom's either. Just out of curiosity, what dynamic-idle state where you able
to
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achieve on Beagle?
Full chip off. I use
omap2plus_defconfig, sometimes with
CONFIG_OMAP2_DSS
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depending on personal mood and what's being tested. I boot to a shell
and
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run the commands at the end of this message (some of which are probably superfluous).
Ok, thanks.
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- Paul
echo 1 > /debug/pm_debug/sleep_while_idle
echo 1 > /debug/pm_debug/enable_off_mode
echo 5 >/sys/devices/platform/omap/omap_uart.0/sleep_timeoutecho 5 >/sys/devices/platform/omap/omap_uart.1/sleep_timeoutecho 5 >/sys/devices/platform/omap/omap_uart.2/sleep_timeoutecho enabled >
/sys/devices/platform/omap/omap_uart.0/tty/ttyO0/power/wakeup
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echo enabled >
/sys/devices/platform/omap/omap_uart.1/tty/ttyO1/power/wakeup
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echo enabled >
/sys/devices/platform/omap/omap_uart.2/tty/ttyO2/power/wakeup