kernel/linux.git/drivers/of/pdt.c, branch v3.4.52

of/pdt: fix section mismatch warning

2011-12-27T22:37:30+00:00

Fix the following section mismatch warning - seen when building sparc32: WARNING: vmlinux.o(.text+0x1ff9c0): Section mismatch in reference from the function kernel_tree_alloc() to the function .init.text:prom_early_alloc() The function kernel_tree_alloc() references the function __init prom_early_alloc(). This is often because kernel_tree_alloc lacks a __init annotation or the annotation of prom_early_alloc is wrong. prom_early_alloc() is annotated __init, and users of kernel_tree_alloc() is also annotated __init. So simply match the annoation of these to fix the warning. Signed-off-by: Sam Ravnborg Cc: Grant Likely Acked-by: David S. Miller Signed-off-by: Rob Herring

dt: add of_alias_scan and of_alias_get_id

2011-09-22T17:12:10+00:00

The patch adds function of_alias_scan to populate a global lookup table with the properties of 'aliases' node and function of_alias_get_id for drivers to find alias id from the lookup table. v3: Split out automatic addition of aliases on id lookup so that it can be debated separately from the core functionality. v2: - Add of_chosen/of_aliases populating and of_alias_scan() invocation for OF_PROMTREE. - Add locking - rework parse loop Signed-off-by: Shawn Guo Acked-by: David S. Miller Signed-off-by: Grant Likely

of/promtree: allow DT device matching by fixing 'name' brokenness (v5)

2011-03-02T20:45:19+00:00

Commit e2f2a93b, "of/promtree: add package-to-path support to pdt" changed dp->name from using the 'name' property to using package-to-path. This fixed /proc/device-tree creation by eliminating conflicts between names (the 'name' property provides names like 'battery', whereas package-to-path provides names like '/foo/bar/battery@0', which we stripped to 'battery@0'). However, it also breaks of_device_id table matching. The fix that we _really_ wanted was to keep dp->name based upon the name property ('battery'), but based dp->full_name upon package-to-path ('battery@0'). This patch does just that. This changes all users (except SPARC) of promtree to use the full result from package-to-path for full_name, rather than stripping the directory out. In practice, the strings end up being exactly the same; this change saves time, code, and memory. SPARC continues to use the existing build_path_component() code. v2: combine two patches and revert of_pdt_node_name to original version v3: use dp->phandle instead of passing around node v4: warn/bail out for non-sparc archs if pkg2path is not set v5: split of_pdt_build_full_name into sparc & non-sparc versions v6: Pass NULL to pkg2path before buf gets assigned. Drop check for pkg2path hook on each and every node. v7: Don't BUG() when unable to get the full_path; create a known-unique name instead. Signed-off-by: Andres Salomon Signed-off-by: Grant Likely

of/promtree: add package-to-path support to pdt

2010-10-13T03:58:08+00:00

package-to-path is a PROM function which tells us the real (full) name of the node. This provides a hook for that in the prom ops struct, and makes use of it in the pdt code when attempting to determine a node's name. If the hook is available, try using it (falling back to looking at the "name" property if it fails). Signed-off-by: Andres Salomon Signed-off-by: Grant Likely

of/promtree: add of_pdt namespace to pdt code

2010-10-13T03:58:00+00:00

For symbols still lacking namespace qualifiers, add an of_pdt_ prefix. Signed-off-by: Andres Salomon Acked-by: David S. Miller Signed-off-by: Grant Likely

of/promtree: no longer call prom_ functions directly; use an ops structure

2010-10-13T03:57:53+00:00

Rather than assuming an architecture defines prom_getchild and friends, define an ops struct with hooks for the various prom functions that pdt.c needs. This ops struct is filled in by the arch-(and sometimes firmware-)specific code, and passed to of_pdt_build_devicetree. Update sparc code to define the ops struct as well. Signed-off-by: Andres Salomon Acked-by: David S. Miller Signed-off-by: Grant Likely

of/promtree: make drivers/of/pdt.c no longer sparc-only

2010-10-11T03:53:30+00:00

Clean up pdt.c: - make build dependent upon config OF_PROMTREE - #ifdef out the sparc-specific stuff - create pdt-specific header Signed-off-by: Andres Salomon Acked-by: David S. Miller Signed-off-by: Grant Likely

sparc: break out some PROM device-tree building code out into drivers/of

2010-10-09T08:36:12+00:00

Transitioning into making this useful for architectures other than sparc. This is a verbatim copy of all functions/variables that've been moved. Signed-off-by: Andres Salomon Acked-by: David S. Miller Signed-off-by: Grant Likely