[PATCH 00/03] OMAP3 PM: CPUFreq driver for OMAP3

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

This patch set implements the CPUFreq driver for OMAP3 platforms. I have these patches 
validated on 3430SDP using the omap_3430sdp_min_defconfig.

These patches apply on top of pm-20081106 (commit 0994b2df775ac04806ed) 
+ [PATCH 00/08] OMAP3 SRF: OPP and Frequency resources.
"CPUFreq" and "PM layer implemented using SRF" are selected by default now in 
the omap_3430sdp_min_defconfig.

CPUFreq driver now scales only between OPP1 and OPP4 (110% overdrive). 
By default the governor selected is "perforamance" hence the bootup happens at OPP4.
After bootup use this command to switch to ondemand governor
echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

The ondemand governor can be tuned for sampling rate (rate at which CPU load samples are taken)
and up threshold using the following 
/sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate
/sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold

regards,
Rajendra




  


--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux