[PATCH 0/5] Hide devices with non-available status from kernel
Deepak Saxena
deepak_saxena at mentor.com
Thu Dec 9 06:29:03 EST 2010
Device tree nodes can have a "status" property that is currently checked
for in several places in the kernel. This patch set centralizes handling
of the property and simply does not call a driver's probe() function
if a device is not available. This is of particular use in environments
where we may want to hide certain devices, for example, a multi-core
AMP environment where we are partitioning the system. The patchset
exposes all the devices in the system in /proc as that is a useful
debug tool to have in case the bootloader or user does something wrong.
Deepak Saxena (5):
of/device: Centralize checking of 'status' properties
of/device: make for_each_node* check status properties
of/device: Make of_get_next_child() check status properties
of/device: Create _of_get_next_child()
of/device: Show even unavailable nodes in procfs
arch/powerpc/kernel/pci_of_scan.c | 2 -
arch/powerpc/platforms/83xx/suspend.c | 3 --
arch/powerpc/platforms/83xx/usb.c | 2 +-
arch/powerpc/platforms/85xx/mpc85xx_mds.c | 13 +------
arch/powerpc/sysdev/fsl_pci.c | 5 ---
arch/powerpc/sysdev/ppc4xx_pci.c | 15 --------
drivers/mmc/host/sdhci-of-core.c | 3 --
drivers/net/gianfar.c | 2 +-
drivers/net/ibm_newemac/core.c | 2 +-
drivers/of/base.c | 55 +++++++++++++++++++++++++++--
drivers/of/platform.c | 7 +++-
fs/proc/proc_devtree.c | 2 +-
include/linux/of.h | 2 +
13 files changed, 65 insertions(+), 48 deletions(-)
More information about the devicetree-discuss
mailing list