Hi Tobias,
On 2016-10-06 20:05, Tobias Jakobi wrote:
Hello Marek,
I'm using the patches from the v4.8-clocks-pm-v2 branch plus the ones
from the v4.8-clocks-pm-v2 branch on top of 4.8.0.
I see some warnings on boot coming from driver core. It appears that the
warnings are actually meaningful, since IOMMUs stop working completly.
E.g. if I modprobe s5p-mfc later, firmware loading fails because
apparantly the IOMMU domain isn't online.
WARNING: CPU: 0 PID: 1 at drivers/base/core.c:356 device_links_driver_bound+0x124/0x12c
I added some debug printk() to device_links_driver_bound(), to show the
link status. Apparantly it is always DEVICE_LINK_AVAILABLE.
Please note that some additional patches are needed to get IOMMU working
properly with both runtime-pm patches and deferred probe, which feature
in turn is needed to get it working after adding clocks-pm changes. I
will send such patch soon (as a new version of IOMMU deferred probe
support patches were posted a few days ago).
> (...)
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
