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path: root/include/linux/of.h
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* of: Fix comparison of "compatible" propertiesGrant Likely2010-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 7c7b60cb87547b1664a4385c187f029bf514a737 "of: put default string compare and #a/s-cell values into common header" Breaks various things on powerpc due to using strncasecmp instead of strcasecmp for comparing against "compatible" strings. This causes things like the 4xx PCI code to fail miserably due to the partial matches in code like this: for_each_compatible_node(np, NULL, "ibm,plb-pcix") ppc4xx_probe_pcix_bridge(np); for_each_compatible_node(np, NULL, "ibm,plb-pci") ppc4xx_probe_pci_bridge(np); It's not quite right to do partial name match. Entries in a compatible list are meant to be matched whole. If a device is compatible with both "foo" and "foo1", then the device should have both strings in its "compatible" property. This patch reverts powerpc and microblaze us to use strcasecmp. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> (for patch description) Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Michal Simek <michal.simek@petalogix.com>
* of/sparc: Remove sparc-local declaration of allnodes and devtree_lockGrant Likely2010-02-14
| | | | | | | | | | | | | | Both allnodes and devtree_lock are defined in common code. The extern declaration should be in the common header too so that the compiler can type check. allnodes is already in of.h, but devtree_lock should be declared there too. This patch removes the SPARC declarations and uses decls in of.h instead. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: David S. Miller <davem@davemloft.net>
* of: move definition of of_chosen into common code.Grant Likely2010-02-14
| | | | | | | | | Rather than defining of_chosen in each arch, it can be defined for all in driver/of/base.c Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michal Simek <monstr@monstr.eu>
* of: put default string compare and #a/s-cell values into common headerGrant Likely2010-02-14
| | | | | | | | | Most architectures don't need to change these. Put them into common code to eliminate some duplication Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michal Simek <monstr@monstr.eu>
* of: protect linux/of.h with CONFIG_OFJeremy Kerr2010-02-14
| | | | | | | | | | For platforms that have CONFIG_OF optional, we need to make the contents of linux/of.h conditional on CONFIG_OF. Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michal Simek <monstr@monstr.eu>
* of: Remove old and misplaced function declarationsGrant Likely2010-02-14
| | | | | | | | | | | | | | | | | | | The following functions don't exist: finish_device_tree() print_properties() prom_n_intr_cells() prom_get_irq_senses() The following functions are in drivers/of/base.c, so the declaration belongs in of.h instead of of_fdt.h of_machine_is_compatible() prom_add_property() prom_remove_property() prom_update_property() Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michal Simek <monstr@monstr.eu>
* of: use __be32 for cell value accessorsJeremy Kerr2010-02-09
| | | | | | | | | | | Currently, we're using u32 for cell values, and hence assuming host-endian device trees. As we'd like to support little-endian platforms, use a __be32 for cell values, and convert in the cell accessors. Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* of: make set_node_proc_entry private to proc_devtree.cJeremy Kerr2010-02-09
| | | | | | | | | | | | We only need set_node_proc_entry in proc_devtree.c, so move it there. This fixes the !HAVE_ARCH_DEVTREE_FIXUPS build, as we can't make make the definition in linux/of.h conditional on this #define (definitions in asm/prom.h can't be exposed to linux/of.h, due to the enforced #include ordering). Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* of: merge of_attach_node() & of_detach_node()Grant Likely2010-02-09
| | | | | | | | Merge common code between PowerPC and Microblaze Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Tested-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* of: unify phandle name in struct device_nodeGrant Likely2010-01-28
| | | | | | | | | | | | | | | | | | | | | In struct device_node, the phandle is named 'linux_phandle' for PowerPC and MicroBlaze, and 'node' for SPARC. There is no good reason for the difference, it is just an artifact of the code diverging over a couple of years. This patch renames both to simply .phandle. Note: the .node also existed in PowerPC/MicroBlaze, but the only user seems to be arch/powerpc/platforms/powermac/pfunc_core.c. It doesn't look like the assignment between .linux_phandle and .node is significantly different enough to warrant the separate code paths unless ibm,phandle properties actually appear in Apple device trees. I think it is safe to eliminate the old .node property and use phandle everywhere. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Tested-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* of: remove special case definition of of_read_ulong()Grant Likely2009-11-23
| | | | | | | | | | | | | | | Special case of of_read_ulong() was defined for PPC32 to toss away all but the last 32 bits when a large number value was read, and the 'normal' version for ppc64 just #defined of_read_ulong to of_read_number which causes compiler warnings on MicroBlaze and other 32 bit architectures because it returns a u64 instead of a ulong. This patch fixes the problem by defining a common implementation of of_read_ulong() that works everywhere. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Michal Simek <monstr@monstr.eu>
* of/flattree: Merge unflatten_device_treeGrant Likely2009-11-23
| | | | | | | | Merge common code between PowerPC and MicroBlaze Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Michal Simek <monstr@monstr.eu>
* of: merge of_find_all_nodes() implementationsGrant Likely2009-10-15
| | | | | | | | | | | | Merge common code between Microblaze and PowerPC, and make it available to Sparc Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
* of: merge of_node_get(), of_node_put() and of_find_all_nodes()Grant Likely2009-10-15
| | | | | | | | | | | | | | | Merge common code between Sparc, PowerPC and Microblaze. Sparc differs in the implementation at this point, so this patch uses a #ifdef to handle sparc differently for now. The merging of implementations will occur in a later patch Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
* of: merge of_read_number() an of_read_ulong()Grant Likely2009-10-15
| | | | | | | | | | | Merge common code between Microblaze and PowerPC Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
* of: merge of_node_*_flag() and set_node_proc_entry()Grant Likely2009-10-15
| | | | | | | | | | | Merge common code between PowerPC and Microblaze Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
* of: Move OF_IS_DYNAMIC and OF_MARK_DYNAMIC macros to of.hGrant Likely2009-10-15
| | | | | | | | | | | Merge of common code duplicated between Sparc, PowerPC and Microblaze Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
* of: merge struct device_nodeGrant Likely2009-10-15
| | | | | | | | | | | Merge of common code duplicated between Sparc, PowerPC and Microblaze Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
* of: merge phandle, ihandle and struct propertyGrant Likely2009-10-15
| | | | | | | | | | | Merge of common code duplicated between Sparc, PowerPC and Microblaze Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
* of: add of_parse_phandle() helper for parsing phandle propertiesGrant Likely2009-04-27
| | | | | | | | | of_parse_phandle() is a helper function to read and parse a phandle property and return a pointer to the resulting device_node. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Andy Fleming <afleming@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* of: Add helpers for finding device nodes which have a given propertyMichael Ellerman2008-11-19
| | | | | | | | | | | | This commit adds a routine for finding a device node which has a certain property. The contents of the property are not taken into account, merely the presence or absence of the property. Based on that routine, we add a for_each_ macro for iterating over all nodes that have a certain property. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* of: Add new helper of_parse_phandles_with_args()Anton Vorontsov2008-10-12
| | | | | | | | The helper is factored out of of_get_gpio(). Will be used by the QE pin multiplexing functions (they need to parse the gpios = <> too). Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* of: adapt of_find_i2c_driver() to be usable by SPI alsoGrant Likely2008-07-25
| | | | | | | | SPI has a similar problem as I2C in that it needs to determine an appropriate modalias value for each device node. This patch adapts the of_i2c of_find_i2c_driver() function to be usable by of_spi also. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* [POWERPC] Add of_device_is_available functionJosh Boyer2008-04-06
| | | | | | | | | | | | | | IEEE 1275 defined a standard "status" property to indicate the operational status of a device. The property has four possible values: okay, disabled, fail, fail-xxx. The absence of this property means the operational status of the device is unknown or okay. This adds a function called of_device_is_available that checks the state of the status property of a device. If the property is absent or set to either "okay" or "ok", it returns 1. Otherwise it returns 0. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add of_get_next_parent()Michael Ellerman2008-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | Iterating through a device node's parents is simple enough, but dealing with the refcounts properly is a little ugly, and replicating that logic is asking for someone to get it wrong or forget it all together, eg: while (dn != NULL) { /* loop body */ tmp = of_get_parent(dn); of_node_put(dn); dn = tmp; } So add of_get_next_parent(), inspired by of_get_next_child(). The contract is that it returns the parent and drops the reference on the current node, this makes the loop look like: while (dn != NULL) { /* loop body */ dn = of_get_next_parent(dn); } Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add of_find_matching_node() helper functionGrant Likely2008-01-16
| | | | | | | | | | | | | | Similar to of_find_compatible_node(), of_find_matching_node() and for_each_matching_node() allow you to iterate over the device tree looking for specific nodes, except that they take of_device_id tables instead of strings. This also moves of_match_node() from driver/of/device.c to driver/of/base.c to colocate it with the of_find_matching_node which depends on it. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add for_each_child_of_node() helper for iterating over child nodesMichael Ellerman2007-12-10
| | | | | | | | | Add for_each_child_of_node() to encapsulate the common idiom of iterating over the children of a device_node. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* remove asm/bitops.h includesJiri Slaby2007-10-19
| | | | | | | | | | | | | remove asm/bitops.h includes including asm/bitops directly may cause compile errors. don't include it and include linux/bitops instead. next patch will deny including asm header directly. Cc: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [POWERPC] Remove get_property and device_is_compatibleStephen Rothwell2007-08-16
| | | | | | | | | They were only needed for backwards compatibility and all in tree uses have now been changed. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Split out common parts of prom.hStephen Rothwell2007-07-19
This creates linux/of.h and includes asm/prom.h from it. We also include linux/of.h from asm/prom.h while we transition. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Paul Mackerras <paulus@samba.org> Acked-by: David S. Miller <davem@davemloft.net>
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