Hi Santosh, On Tue, Jan 08, 2013 at 21:01:51, Shilimkar, Santosh wrote: > Vaibhav, > > On Monday 31 December 2012 06:36 PM, Vaibhav Bedia wrote: > > Hi, > > > > This is the second version of the patch series for adding suspend-resume > > support for AM33XX. Based on the feedback received on the previous patch > > series [1] almost all the patches have undergone a bit a rework. > > > > The 1st two patches depend on the changes for mailbox code migration > > from arch/arm/*-omap*/ to drivers/mailbox/ [2]. > > > > The patch series also depends on recent changes to the OMAP PM framework > > by Paul Walmsley. > > > > I found it easiest to apply the AM33XX suspend-resume patches on top of > > Paul's TEST_pwrdm_post_fpwrst_devel_a_3.9 branch + the patches @ [2]. > > > > With these dependencies met, the PM code uses the firmware interface > > and expects the userspace to load the WKUP_M3 binary before the > > suspend-resume functionality is made available. The binary file (and > > the source-code for WKUP_M3) can be obtained from the 'next' branch at > > [3]. The WKUP_M3 binary can either be loaded post bootup via > > the sysfs entry './sys/devices/ocp.2/wkup_m3.4/firmware' or > > it can be included in the kernel image as part of the build process. > > > > DDR3 specific changes have been skipped for now since mainline U-Boot > > exhibited stability issues on all the DDR3 based AM335x boards that i could > > lay my hands on. > > > > I have done basic testing along with power measurments on the different > > power rails on the AM335x EVM. PER domain transition on the BeagleBone fails > > if the CPSW driver is included in the kernel and is yet to be root caused. > > Along with this issue more extensive testing on other OMAP platforms is also > > pending right now. > > > > For more details on the AM335x suspend-resume support please refer to the > > changelog in the different patches. > > > I still haven't reviewed patch 15, 16 and 18 which adds suspend support. > Will do that in coming days since they need a bit a closer look. > > But as mentioned in some of the patches, you need to split this series > since except 15, 16 and 18 which adds suspend support, rest of the > patches are > - data file fixes > - timer suspend/resume update > - mailbox support, control module update. > > Would be good to split the series to help the reviews. > Sure. I'll split it up like you mentioned. Since all these changes are needed for a working suspend-resume I kept it in a single series to reduce dependencies and also to help set an initial context for the AM33xx PM changes. Regards, Vaibhav -- 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
