decouple platform_device from omap_device
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Cover letter [RFC/PATCH 0/7] decouple platform_device from omap_device
Quoted 38 lines · Manjunath Kondaiah
Quoted 37 lines · Kevin
Hi Manjunath,
Quoted 10 lines · Manjunath Kondaiah
Kevin,
Quoted 7 lines · Kevin Hilman
Here's a first whack, proof-of-concept on how we could start to decouple the
platform_devicefrom anomap_device.The main RFC is in the last patch, and everything leading up to it are misc.
omap_devicecleanups that make the last patch cleaner and clearer. ?It's really the last patch that does the decoupling.Quoted 6 lines
Quoted 4 lines
This will be necessary if we're going to decouple the
platform_devicecreation from the omap_device/omap_hwmod creation etc. ?This patch leaves them both done inomap_device_build(), but shows that they can be decoupled.Can you pls mention baseline used for these patches? I tried applying on latest mainline, v3.0 and ?git://git.pwsan.com/linux-2.6 prcm-devel-3.1
Oops, sorry. I forgot to mention it.
Due to some misc. dependencies (mainly on Beagle board file), I've temporarily based it on the for-next branch of the arm-soc tree[1] since that has everything already queued for the next merge window. I also based it on the
omap_devicepatch I posted which changes the pr_* prints to dev_*.For convenience, I've pushed this series to the 'wip/od-devres' branch of my tree[2].
Sorry for the confusion,
Kevin
[1]
git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc.git
Quoted 7 lines
Quoted 1 line
[2]
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm.gitThis series results in boot crash. However, it boots fine without this series. I have not tried to debug but it looks like from boot log, the res structure has invalid entries in mmc probe. As mentioned by Grant in 7/7, the scope of devres is not lifetime hence it needs to be fixed.
This limitation was also clearly described in the changelog of patch 7/7.
However, I don't think that problem should cause a problem on boot, only a from the driver core (which, suprisingly, I don't see in your bootlog.)
I suspect your crash is because you're not also testing with the MMC runtime PM series that is merging for v3.1.
Kevin