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(-) _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
