I'm currently running "linux-2.6.37-psp04.02.00.07" on DM3730.
I have read these wikis:
http://processors.wiki.ti.com/index.php/OMAP-L1_Linux_Drivers_Usage#Power_Management
http://processors.wiki.ti.com/index.php/DVFS_User_Guide#Voltage_Scaling
http://processors.wiki.ti.com/index.php/UserGuidePmic_PSP_03.00.00.05
mentioned in this post:
https://e2e.ti.com/support/embedded/linux/f/354/t/286591
By doing
echo -n "userspace" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
I did see significant decrease of power consumption. But I'm not sure IVA2.2's power is also scaled down at the same time.
In the "/cpufreq" directory, I see all the listings like "scaling_available_frequencies" are related to ARM core only, so I'm not sure whether further actions are required to scale down IVA's frequency and voltage to save more power.
If so, shall I do it via DSPLink module?
Thank you
