PM: VDD2 OPPs

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

 



Hello,

With regards to the OMAP2 (or at least the 3530 EVM) -the TRM and
various whitepapers suggest that they are 3 OPP levels available for
VDD2 (L3). However, from looking at the sources (linux-omap-pm / pm
branch) it seems that only 2 OPP levels are supported (@166Mhz and
@83Mhz) and used. I also notice that these rates are different to those
in a whitepaper (166, 100 and 41.5). Is there any particular reason why
only 2 OPPs are used? 

I understand that the OPP level of VDD2 may be set by changes to the OPP
level of VDD1 (i.e. resource34xx.c:set_opp) - and modifying VDD1's OPP
via cpufreq seems to be the only way to adjust the VDD2 OPP from
user-land - is this correct?

Thanks,

Andrew Murray

--
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