summaryrefslogtreecommitdiff
path: root/drivers/of
AgeCommit message (Collapse)AuthorFilesLines
2011-12-07of/irq: Get rid of NO_IRQ usageAnton Vorontsov1-9/+4
PPC32/64 defines NO_IRQ to zero, so no problems expected. ARM defines NO_IRQ to -1, but OF code relies on IRQ domains support, which returns correct ('0') value in 'no irq' case. So everything should be fine. Other arches might break if some of their OF drivers rely on NO_IRQ being not 0. If so, the drivers must be fixed, finally. [ Rob Herring points out that microblaze should be fixed, and has posted a patch for testing for that. - Linus ] Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-29of/irq: of_irq_init: add check for parent equal to child nodeRob Herring1-0/+2
With the revert of "of/irq: of_irq_find_parent: check for parent equal to child" (dc9372808412edb), we need another way to handle parent node equal to the child node. This can simply be handled in of_irq_init by checking for this condition. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Tested-by: Pawel Moll <pawel.moll@arm.com> Tested-by: Stephen Warren <swarren@nvidia.com>
2011-11-22Revert "of/irq: of_irq_find_parent: check for parent equal to child"Linus Torvalds1-7/+7
This reverts commit dc9372808412edbc653a675a526c2ee6c0c14a91. As requested by Ben Herrenschmidt: "This breaks some powerpc platforms at least. The practice of having a node provide an explicit "interrupt-parent" property pointing to itself is an old trick that we've used in the past to allow a device-node to have interrupts routed to different controllers. In that case, the node also contains an interrupt-map, so the node is its own parent, the interrupt resolution hits the map, which then can route each individual interrupt to a different parent." Grant says: "Ah, nuts, yes that is broken then. Yes, please revert the commit and Rob & I will come up with a better solution. Rob, I think it can be done by explicitly checking for np == desc->interrupt_parent in of_irq_init() instead of relying on of_irq_find_parent() returning NULL." Requested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: devicetree-discuss@lists.ozlabs.org Cc: linuxppc-dev <linuxppc-dev@lists.ozlabs.org> Cc: Tanmay Inamdar <tinamdar@apm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-06Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds4-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
2011-11-06Merge branch 'next' of ↵Linus Torvalds1-1/+6
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (106 commits) powerpc/p3060qds: Add support for P3060QDS board powerpc/83xx: Add shutdown request support to MCU handling on MPC8349 MITX powerpc/85xx: Make kexec to interate over online cpus powerpc/fsl_booke: Fix comment in head_fsl_booke.S powerpc/85xx: issue 15 EOI after core reset for FSL CoreNet devices powerpc/8xxx: Fix interrupt handling in MPC8xxx GPIO driver powerpc/85xx: Add 'fsl,pq3-gpio' compatiable for GPIO driver powerpc/86xx: Correct Gianfar support for GE boards powerpc/cpm: Clear muram before it is in use. drivers/virt: add ioctl for 32-bit compat on 64-bit to fsl-hv-manager powerpc/fsl_msi: add support for "msi-address-64" property powerpc/85xx: Setup secondary cores PIR with hard SMP id powerpc/fsl-booke: Fix settlbcam for 64-bit powerpc/85xx: Adding DCSR node to dtsi device trees powerpc/85xx: clean up FPGA device tree nodes for Freecsale QorIQ boards powerpc/85xx: fix PHYS_64BIT selection for P1022DS powerpc/fsl-booke: Fix setup_initial_memory_limit to not blindly map powerpc: respect mem= setting for early memory limit setup powerpc: Update corenet64_smp_defconfig powerpc: Update mpc85xx/corenet 32-bit defconfigs ... Fix up trivial conflicts in: - arch/powerpc/configs/40x/hcu4_defconfig removed stale file, edited elsewhere - arch/powerpc/include/asm/udbg.h, arch/powerpc/kernel/udbg.c: added opal and gelic drivers vs added ePAPR driver - drivers/tty/serial/8250.c moved UPIO_TSI to powerpc vs removed UPIO_DWAPB support
2011-11-03dt/platform: minor cleanupOlof Johansson1-12/+16
* Correct description of of_platform_bus_create to match implementation * Remove a level of indentation in of_dev_lookup Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2011-11-01Merge branch 'next/dt' of git://git.linaro.org/people/arnd/arm-socLinus Torvalds1-0/+107
* 'next/dt' of git://git.linaro.org/people/arnd/arm-soc: ARM: gic: use module.h instead of export.h ARM: gic: fix irq_alloc_descs handling for sparse irq ARM: gic: add OF based initialization ARM: gic: add irq_domain support irq: support domains with non-zero hwirq base of/irq: introduce of_irq_init ARM: at91: add at91sam9g20 and Calao USB A9G20 DT support ARM: at91: dt: at91sam9g45 family and board device tree files arm/mx5: add device tree support for imx51 babbage arm/mx5: add device tree support for imx53 boards ARM: msm: Add devicetree support for msm8660-surf msm_serial: Add devicetree support msm_serial: Use relative resources for iomem Fix up conflicts in arch/arm/mach-at91/{at91sam9260.c,at91sam9g45.c}
2011-11-01Merge branch 'next/cleanup2' of git://git.linaro.org/people/arnd/arm-socLinus Torvalds1-0/+84
* 'next/cleanup2' of git://git.linaro.org/people/arnd/arm-soc: (31 commits) ARM: OMAP: Warn if omap_ioremap is called before SoC detection ARM: OMAP: Move set_globals initialization to happen in init_early ARM: OMAP: Map SRAM later on with ioremap_exec() ARM: OMAP: Remove calls to SRAM allocations for framebuffer ARM: OMAP: Avoid cpu_is_omapxxxx usage until map_io is done ARM: OMAP1: Use generic map_io, init_early and init_irq arm/dts: OMAP3+: Add mpu, dsp and iva nodes arm/dts: OMAP4: Add a main ocp entry bound to l3-noc driver ARM: OMAP2+: l3-noc: Add support for device-tree ARM: OMAP2+: board-generic: Add i2c static init ARM: OMAP2+: board-generic: Add DT support to generic board arm/dts: Add support for OMAP3 Beagle board arm/dts: Add initial device tree support for OMAP3 SoC arm/dts: Add support for OMAP4 SDP board arm/dts: Add support for OMAP4 PandaBoard arm/dts: Add initial device tree support for OMAP4 SoC ARM: OMAP: omap_device: Add a method to build an omap_device from a DT node ARM: OMAP: omap_device: Add omap_device_[alloc|delete] for DT integration of: Add helpers to get one string in multiple strings property ARM: OMAP2+: devices: Remove all omap_device_pm_latency structures ... Fix up trivial header file conflicts in arch/arm/mach-omap2/board-generic.c
2011-10-31drivers/of: include export.h for EXPORT_SYMBOL_GPL/THIS_MODULE as requiredPaul Gortmaker2-0/+2
For files that were getting these macros via the implicit presence of module.h being everywhere. With contributions from Stephen Rothwell <sfr@canb.auug.org.au>. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31drivers/of: Add module.h to of_spi.cPaul Gortmaker1-0/+1
This file really needs the full module.h header file present, but was just getting it implicitly before. Fix it up in advance so we avoid build failures once the cleanup commit is present. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31of: of_pci.c needs export.h since it uses EXPORT_SYMBOLSPaul Gortmaker1-0/+1
It was getting it implicitly before, since module.h was pulled in via device.h -- but that is something we are going to make go away soon. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31Merge branch 'dt/gic' into next/dtArnd Bergmann1-0/+107
Conflicts: arch/arm/include/asm/localtimer.h arch/arm/mach-msm/board-msm8x60.c arch/arm/mach-omap2/board-generic.c
2011-10-31of/irq: introduce of_irq_initRob Herring1-0/+107
of_irq_init will scan the devicetree for matching interrupt controller nodes. Then it calls an initialization function for each found controller in the proper order with parent nodes initialized before child nodes. Based on initial pseudo code from Grant Likely. Changes in v4: - Drop unnecessary empty list check - Be more verbose on errors - Simplify "if (!desc) WARN_ON(1)" to "if (WARN_ON(!desc))" Changes in v3: - add missing kfree's found by Jamie - Implement Grant's comments to simplify the init loop - fix function comments Changes in v2: - Complete re-write of list searching code from Grant Likely Signed-off-by: Rob Herring <rob.herring@calxeda.com> Reviewed-by: Jamie Iles <jamie@jamieiles.com> Tested-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-25of_mdio: Don't phy_scan_fixups() twiceKyle Moffett1-1/+0
The "phy_device_register()" call 5 lines down already calls phy_scan_fixups(), there's no need to do it a second time. Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-05Merge branch 'for-grant' of git://git.jdl.com/software/linux-3.0 into ↵Grant Likely1-7/+7
devicetree/next
2011-10-05of/irq: of_irq_find_parent: check for parent equal to childRob Herring1-7/+7
An interrupt controller may often implicitly inherit itself from a parent node when in fact the controller is the interrupt root controller. Guard against the case of child == parent and return NULL in this case. This can also be fixed by adding an explicit "interrupt-parent;" to a root interrupt controller node. Based on code from Grant Likely. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Grant Likely <grant.likely@secretlab.ca>
2011-10-04dt: add helper to read 64-bit integersJamie Iles1-0/+29
Add a helper similar to of_property_read_u32() that handles 64-bit integers. v2/v3: constify device node and property name parameters. Cc: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-04of: Add helpers to get one string in multiple strings propertyBenoit Cousson1-0/+84
Add of_property_read_string_index and of_property_count_strings to retrieve one string inside a property that will contains severals strings. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-22dt: add of_alias_scan and of_alias_get_idShawn Guo3-4/+131
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 <shawn.guo@linaro.org> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-09-20of: Change logic to overwrite cmd_line with CONFIG_CMDLINEBenjamin Herrenschmidt1-1/+6
We used to overwrite with CONFIG_CMDLINE if we found a chosen node but failed to get bootargs out of it or they were empty, unless CONFIG_CMDLINE_FORCE is set. Instead change that to overwrite if "data" is non empty after the bootargs check. It allows arch code to have other mechanisms to retrieve the command line prior to parsing the device-tree. Note: CONFIG_CMDLINE_FORCE case should ideally be handled elsewhere as it won't work as it-is if the device-tree has no /chosen node Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: devicetree-discuss@lists-ozlabs.org CC: Grant Likely <grant.likely@secretlab.ca> Acked-by: Grant Likely <grant.likely@secretlab.ca>
2011-08-04Revert "dt: add of_alias_scan and of_alias_get_id"Grant Likely2-133/+1
This reverts commit 750f463a749e28464151ad26938d11b07b1c43cb. of_alias_* still needs work to be generalized for 'promtree' dt platforms, and to no implicitly create entries for available ids. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-08-03dt: add of_alias_scan and of_alias_get_idShawn Guo2-1/+133
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. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> [grant.likely: add locking and rework parse loop] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-08-02Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2-4/+5
* 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6: MAINTAINERS: Add keyword match for of_match_table to device tree section of: constify property name parameters for helper functions input: xilinx_ps2: Add missing of_address.h header of: address: use resource_size helper
2011-08-02of: constify property name parameters for helper functionsJamie Iles1-3/+4
The helper functions for reading u32 integers, u32 arrays and strings should have the property name as a const pointer. Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-08-01Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds1-2/+3
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6: gpio_msm: Move Qualcomm MSM v2 gpio driver into drivers gpio_msm: Move Qualcomm v6 MSM driver into drivers msm: gpio: Fold register defs into C file msm: gpiomux: Move public API to public header msm: gpio: Remove ifdefs on gpio chip registers msm: gpio: Remove chip-specific register definitions msm: Remove chip-ifdefs for GPIO io mappings msm: gpio: Remove unsupported devices gpio: ab8500: fix MODULE_ALIAS for ab8500 of/gpio: export of_gpio_simple_xlate
2011-08-01of: address: use resource_size helperFelipe Balbi1-1/+1
that should be the approved way of calculating the size of resources. No functional changes. Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-28of/gpio: export of_gpio_simple_xlateJamie Iles1-2/+3
Allow GPIO drivers to use of_gpio_simple_xlate. This is useful for the generic GPIO driver for example where gpio_chip is embedded in bgpio_chip and doesn't need of_mm_gpio_chip but has a simple 1:1 GPIO mapping. Cc: Anton Vorontsov <avorontsov@ru.mvista.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-27net: ibm_newemac: convert it to use of_get_phy_modeShawn Guo1-0/+2
The patch extends 'enum phy_interface_t' and of_get_phy_mode a little bit with PHY_INTERFACE_MODE_NA and PHY_INTERFACE_MODE_SMII added, and then converts ibm_newemac net driver to use of_get_phy_mode getting phy mode from device tree. It also resolves the namespace conflict on phy_read/write between common mdiobus interface and ibm_newemac private one. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: David S. Miller <davem@davemloft.net> Cc: Grant Likely <grant.likely@secretlab.ca> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David Miller <davem@davemloft.net>
2011-07-27dt/net: add helper function of_get_phy_modeShawn Guo1-0/+43
It adds the helper function of_get_phy_mode getting phy interface from device tree. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Grant Likely <grant.likely@secretlab.ca> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David Miller <davem@davemloft.net>
2011-07-25Merge branch 'next' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (99 commits) drivers/virt: add missing linux/interrupt.h to fsl_hypervisor.c powerpc/85xx: fix mpic configuration in CAMP mode powerpc: Copy back TIF flags on return from softirq stack powerpc/64: Make server perfmon only built on ppc64 server devices powerpc/pseries: Fix hvc_vio.c build due to recent changes powerpc: Exporting boot_cpuid_phys powerpc: Add CFAR to oops output hvc_console: Add kdb support powerpc/pseries: Fix hvterm_raw_get_chars to accept < 16 chars, fixing xmon powerpc/irq: Quieten irq mapping printks powerpc: Enable lockup and hung task detectors in pseries and ppc64 defeconfigs powerpc: Add mpt2sas driver to pseries and ppc64 defconfig powerpc: Disable IRQs off tracer in ppc64 defconfig powerpc: Sync pseries and ppc64 defconfigs powerpc/pseries/hvconsole: Fix dropped console output hvc_console: Improve tty/console put_chars handling powerpc/kdump: Fix timeout in crash_kexec_wait_realmode powerpc/mm: Fix output of total_ram. powerpc/cpufreq: Add cpufreq driver for Momentum Maple boards powerpc: Correct annotations of pmu registration functions ... Fix up trivial Kconfig/Makefile conflicts in arch/powerpc, drivers, and drivers/cpufreq
2011-07-23of: fix missing include from of_pci.cGrant Likely1-0/+1
of_pci.c references symbols from linux/of.h. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-22Merge branch 'of-pci' of ↵Linus Torvalds4-83/+130
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'of-pci' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: pci/of: Consolidate pci_bus_to_OF_node() pci/of: Consolidate pci_device_to_OF_node() x86/devicetree: Use generic PCI <-> OF matching microblaze/pci: Move the remains of pci_32.c to pci-common.c microblaze/pci: Remove powermac originated cruft pci/of: Match PCI devices to OF nodes dynamically
2011-07-22Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds3-9/+270
* 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6: dt: include linux/errno.h in linux/of_address.h of/address: Add of_find_matching_node_by_address helper dt: remove extra xsysace platform_driver registration tty/serial: Add devicetree support for nVidia Tegra serial ports dt: add empty of_property_read_u32[_array] for non-dt dt: bindings: move SEC node under new crypto/ dt: add helper function to read u32 arrays tty/serial: change of_serial to use new of_property_read_u32() api dt: add 'const' for of_property_read_string parameter **out_string dt: add helper functions to read u32 and string property values tty: of_serial: support for 32 bit accesses dt: document the of_serial bindings dt/platform: allow device name to be overridden drivers/amba: create devices from device tree dt: add of_platform_populate() for creating device from the device tree dt: Add default match table for bus ids
2011-07-18of/address: Add of_find_matching_node_by_address helperGrant Likely1-0/+18
of_find_matching_node_by_address() can be used to find a device tree node for a device at a specific address. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-08powerpc: implement arch_setup_pdev_archdataKumar Gala1-2/+2
We have a long standing issues with platform devices not have a valid dma_mask pointer. This hasn't been an issue to date as no platform device has tried to set its dma_mask value to a non-default value. Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-07-06dt: add helper function to read u32 arraysRob Herring1-6/+13
Rework of_property_read_u32 to read an array of values. Then of_property_read_u32 becomes an inline with array size of 1. Also make struct device_node ptr const. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-03dt: add 'const' for of_property_read_string parameter **out_stringShawn Guo1-1/+1
The existing dt codes usually call of_get_property to get a string property and save it as a 'const char *'. The patch adds'const' for of_property_read_string parameter **out_string to make the converting of existing code a little easier. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-30dt: add helper functions to read u32 and string property valuesThomas Abraham1-0/+58
Add helper functions to retrieve unsigned integer and string property values from properties of a device node. These helper functions can be used to lookup a property in a device node, perform error checking and read the property value. [grant.likely@secretlab.ca: Proposal and initial implementation] Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> [grant.likely: some word smithing and be more defensive validating the string] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-28of/gpio: Add new method for getting gpios under different property namesJohn Bonesio1-5/+6
This patch adds a new routine, of_get_named_gpio_flags(), which takes the property name as a parameter rather than assuming "gpios". of_get_gpio_flags() is modified to call of_get_named_gpio_flags() with "gpios" as the property parameter. Signed-off-by: John Bonesio <bones@secretlab.ca> [grant.likely: Tidied up whitespace and tweaked kerneldoc comments.] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-21dt/platform: allow device name to be overriddenGrant Likely1-10/+63
Some platform code has specific requirements on the naming of devices. This patch allows callers of of_platform_populate() to provide a device name lookup table. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-21drivers/amba: create devices from device treeGrant Likely1-0/+71
Add a function to create amba_devices (i.e. primecell peripherals) from device tree nodes. The device tree scanning is done by the of_platform_populate() function which can call of_amba_device_create based on a match table entry. Nodes with a "arm,primecell-periphid" property can override the h/w peripheral id value. Based on the original work by Jeremy Kerr. Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> [grant.likely: add Jeremy's original s-o-b line, changes from review comments, and moved all code to drivers/of/platform.c] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-21dt: add of_platform_populate() for creating device from the device treeGrant Likely1-4/+50
of_platform_populate() is similar to of_platform_bus_probe() except that it strictly enforces that all device nodes must have a compatible property, and it can be used to register devices (not buses) which are children of the root node. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-21dt: Add default match table for bus idsGrant Likely1-0/+8
No need for most platforms to define their own bus table when calling of_platform_populate(). Supply a stock one. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-08pci/of: Match PCI devices to OF nodes dynamicallyBenjamin Herrenschmidt4-83/+130
powerpc has two different ways of matching PCI devices to their corresponding OF node (if any) for historical reasons. The ppc64 one does a scan looking for matching bus/dev/fn, while the ppc32 one does a scan looking only for matching dev/fn on each level in order to be agnostic to busses being renumbered (which Linux does on some platforms). This removes both and instead moves the matching code to the PCI core itself. It's the most logical place to do it: when a pci_dev is created, we know the parent and thus can do a single level scan for the matching device_node (if any). The benefit is that all archs now get the matching for free. There's one hook the arch might want to provide to match a PHB bus to its device node. A default weak implementation is provided that looks for the parent device device node, but it's not entirely reliable on powerpc for various reasons so powerpc provides its own. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-05-25Merge branch 'devicetree/arm-next' of git://git.secretlab.ca/git/linux-2.6 ↵Russell King1-4/+4
into devel-stable
2011-05-11dt/flattree: explicitly pass command line pointer to early_init_dt_scan_chosenGrant Likely1-4/+4
This patch drops the reference to a global 'cmd_line' variable from early_init_dt_scan_chosen, and instead passes the pointer to the command line string via the *data argument. Each architecture does something slightly different with the initial command line, so it makes sense for the architecture to be able to specify the variable name. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-04-20of: Export of_irq_find_parent()Michael Ellerman1-1/+1
We have platform code that needs to find a node's interrupt parent, so export of_irq_find_parent() so we can use it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-31Fix common misspellingsLucas De Marchi2-2/+2
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-23of/flattree: minor cleanupsAndres Salomon1-2/+4
- static-ize some functions - add some additional comments Signed-off-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-03-23dt: eliminate OF_NO_DEEP_PROBE and test for NULL match tableGrant Likely1-12/+5
There are no users of OF_NO_DEEP_PROBE, and of_match_node() now gracefully handles being passed a NULL pointer, so the checks at the top of of_platform_bus_probe can be dropped. While at it, consolidate the root node pointer check to be easier to read and tidy up related comments. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 02:20:28 +0000