kernel_optimize_test/drivers/of
Alan Tull 39a842e22c of/overlay: add of overlay notifications
This patch add of overlay notifications.

When DT overlays are being added, some drivers/subsystems
need to see device tree overlays before the changes go into
the live tree.

This is distinct from reconfig notifiers that are
post-apply or post-remove and which issue very granular
notifications without providing access to the context
of a whole overlay.

The following 4 notificatons are issued:
  OF_OVERLAY_PRE_APPLY
  OF_OVERLAY_POST_APPLY
  OF_OVERLAY_PRE_REMOVE
  OF_OVERLAY_POST_REMOVE

In the case of pre-apply notification, if the notifier
returns error, the overlay will be rejected.

This patch exports two functions for registering/unregistering
notifications:
  of_overlay_notifier_register(struct notifier_block *nb)
  of_overlay_notifier_unregister(struct notifier_block *nb)

The of_mutex is held during these notifications. The
notification data includes pointers to the overlay target
and the overlay:

struct of_overlay_notify_data {
       struct device_node *overlay;
       struct device_node *target;
};

Signed-off-by: Alan Tull <atull@opensource.altera.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-10 17:03:35 +01:00
..
unittest-data
address.c of: use pr_fmt prefix for all console printing 2016-07-18 16:57:42 -05:00
base.c console: don't prefer first registered if DT specifies stdout-path 2016-10-07 18:46:30 -07:00
device.c iommu: of: enforce const-ness of struct iommu_ops 2016-05-09 15:33:29 +02:00
dynamic.c of: use pr_fmt prefix for all console printing 2016-07-18 16:57:42 -05:00
fdt_address.c of: use pr_fmt prefix for all console printing 2016-07-18 16:57:42 -05:00
fdt.c of/serial: move earlycon early_param handling to serial 2016-09-28 17:43:15 +02:00
irq.c of/irq: Break out msi-map lookup (again) 2016-09-16 09:34:14 +01:00
Kconfig mtd: Kill the OF_MTD Kconfig option 2016-09-23 09:35:16 +02:00
Makefile MTD updates for v4.7: 2016-05-24 11:00:20 -07:00
of_mdio.c of_mdio: Abstract a general interface for phy connect 2016-07-16 21:32:58 -07:00
of_net.c
of_numa.c of_numa: Use pr_fmt() 2016-09-09 14:59:09 +01:00
of_pci_irq.c
of_pci.c of/irq: Break out msi-map lookup (again) 2016-09-16 09:34:14 +01:00
of_private.h of: fix memory leak related to safe_name() 2016-06-24 15:16:10 -05:00
of_reserved_mem.c DeviceTree update for 4.8: 2016-07-30 11:32:01 -07:00
overlay.c of/overlay: add of overlay notifications 2016-11-10 17:03:35 +01:00
pdt.c
platform.c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-10-15 09:26:12 -07:00
resolver.c of: overlay: add resolver error prints 2016-07-18 17:18:36 -05:00
unittest.c of: unittest: use of_platform_default_populate() to populate default bus 2016-06-23 15:00:59 -05:00