Commit Graph

251 Commits (7cbc353540c31ffaf65ad44d89b955be0f1d04dc)

Author SHA1 Message Date
Linus Torvalds 56c10bf82c Merge branch 'for-armsoc' of git://git.linaro.org/people/rmk/linux-arm
Pull #1 ARM updates from Russell King:
 "This one covers stuff which Arnd is waiting for me to push, as this is
  shared between both our trees and probably other trees elsewhere.

  Essentially, this contains:
   - AMBA primecell device initializer updates - mostly shrinking the
     size of the device declarations in platform code to something more
     reasonable.
   - Getting rid of the NO_IRQ crap from AMBA primecell stuff.
   - Nicolas' idle cleanups.  This in combination with the restart
     cleanups from the last merge window results in a great many
     mach/system.h files being deleted."

Yay: ~80 files, ~2000 lines deleted.

* 'for-armsoc' of git://git.linaro.org/people/rmk/linux-arm: (60 commits)
  ARM: remove disable_fiq and arch_ret_to_user macros
  ARM: make entry-macro.S depend on !MULTI_IRQ_HANDLER
  ARM: rpc: make default fiq handler run-time installed
  ARM: make arch_ret_to_user macro optional
  ARM: amba: samsung: use common amba device initializers
  ARM: amba: spear: use common amba device initializers
  ARM: amba: nomadik: use common amba device initializers
  ARM: amba: u300: use common amba device initializers
  ARM: amba: lpc32xx: use common amba device initializers
  ARM: amba: netx: use common amba device initializers
  ARM: amba: bcmring: use common amba device initializers
  ARM: amba: ep93xx: use common amba device initializers
  ARM: amba: omap2: use common amba device initializers
  ARM: amba: integrator: use common amba device initializers
  ARM: amba: realview: get rid of private platform amba_device initializer
  ARM: amba: versatile: get rid of private platform amba_device initializer
  ARM: amba: vexpress: get rid of private platform amba_device initializer
  ARM: amba: provide common initializers for static amba devices
  ARM: amba: make use of -1 IRQs warn
  ARM: amba: u300: get rid of NO_IRQ initializers
  ...
2012-03-23 17:30:49 -07:00
Linus Torvalds f8974cb713 Core device tree changes for Linux v3.4
This branch contains a minor documentation addition, a utility
 function for parsing string properties needed by some of the new ARM
 platforms, disables dynamic DT code that isn't used anywhere but on a
 few PPC machines, and exports DT node compatible data to userspace via
 UEVENT properties.  Nothing earth shattering here.
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Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull core device tree changes for Linux v3.4 from Grant Likely:
 "This branch contains a minor documentation addition, a utility
  function for parsing string properties needed by some of the new ARM
  platforms, disables dynamic DT code that isn't used anywhere but on a
  few PPC machines, and exports DT node compatible data to userspace via
  UEVENT properties.  Nothing earth shattering here."

* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  of: Only compile OF_DYNAMIC on PowerPC pseries and iseries
  arm/dts: OMAP3: Add omap3evm and am335xevm support
  drivercore: Output common devicetree information in uevent
  of: Add of_property_match_string() to find index into a string list
2012-03-21 10:30:03 -07:00
Linus Torvalds c207f3a431 Generialize powerpc's irq_host as irq_domain
This branch takes the PowerPC irq_host infrastructure (reverse mapping
 from Linux IRQ numbers to hardware irq numbering), generalizes it,
 renames it to irq_domain, and makes it available to all architectures.
 
 Originally the plan has been to create an all-new irq_domain
 implementation which addresses some of the powerpc shortcomings such
 as not handling 1:1 mappings well, but doing that proved to be far
 more difficult and invasive than generalizing the working code and
 refactoring it in-place.  So, this branch rips out the 'new'
 irq_domain and replaces it with the modified powerpc version (in a
 fully bisectable way of course).  It converts all users over to the
 new API and makes irq_domain selectable on any architecture.
 
 No architecture is forced to enable irq_domain, but the infrastructure
 is required for doing OpenFirmware style irq translations.  It will
 even work on SPARC even though SPARC has it's own mechanism for
 translating irqs at boot time.  MIPS, microblaze, embedded x86 and c6x
 are converted too.
 
 The resulting irq_domain code is probably still too verbose and can be
 optimized more, but that can be done incrementally and is a task for
 follow-on patches.
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Merge tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull irq_domain support for all architectures from Grant Likely:
 "Generialize powerpc's irq_host as irq_domain

  This branch takes the PowerPC irq_host infrastructure (reverse mapping
  from Linux IRQ numbers to hardware irq numbering), generalizes it,
  renames it to irq_domain, and makes it available to all architectures.

  Originally the plan has been to create an all-new irq_domain
  implementation which addresses some of the powerpc shortcomings such
  as not handling 1:1 mappings well, but doing that proved to be far
  more difficult and invasive than generalizing the working code and
  refactoring it in-place.  So, this branch rips out the 'new'
  irq_domain and replaces it with the modified powerpc version (in a
  fully bisectable way of course).  It converts all users over to the
  new API and makes irq_domain selectable on any architecture.

  No architecture is forced to enable irq_domain, but the infrastructure
  is required for doing OpenFirmware style irq translations.  It will
  even work on SPARC even though SPARC has it's own mechanism for
  translating irqs at boot time.  MIPS, microblaze, embedded x86 and c6x
  are converted too.

  The resulting irq_domain code is probably still too verbose and can be
  optimized more, but that can be done incrementally and is a task for
  follow-on patches."

* tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6: (31 commits)
  dt: fix twl4030 for non-dt compile on x86
  mfd: twl-core: Add IRQ_DOMAIN dependency
  devicetree: Add empty of_platform_populate() for !CONFIG_OF_ADDRESS (sparc)
  irq_domain: Centralize definition of irq_dispose_mapping()
  irq_domain/mips: Allow irq_domain on MIPS
  irq_domain/x86: Convert x86 (embedded) to use common irq_domain
  ppc-6xx: fix build failure in flipper-pic.c and hlwd-pic.c
  irq_domain/microblaze: Convert microblaze to use irq_domains
  irq_domain/powerpc: Replace custom xlate functions with library functions
  irq_domain/powerpc: constify irq_domain_ops
  irq_domain/c6x: Use library of xlate functions
  irq_domain/c6x: constify irq_domain structures
  irq_domain/c6x: Convert c6x to use generic irq_domain support.
  irq_domain: constify irq_domain_ops
  irq_domain: Create common xlate functions that device drivers can use
  irq_domain: Remove irq_domain_add_simple()
  irq_domain: Remove 'new' irq_domain in favour of the ppc one
  mfd: twl-core.c: Fix the number of interrupts managed by twl4030
  of/address: add empty static inlines for !CONFIG_OF
  irq_domain: Add support for base irq and hwirq in legacy mappings
  ...
2012-03-21 10:27:19 -07:00
Baruch Siach e5c7d1f669 of/mdio: fix fixed link bus name
Since 9e6c643b (phy/fixed: use an unique MDIO bus name) the name of the fixed
PHY bus is "fixed-0". Teach of_phy_connect_fixed_link() the new name.

Tested on a P1020RDB PowerPC system.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-02-27 10:09:52 -06:00
Danny Kukawka d022bbc712 of/fdt.c: asm/setup.h included twice
drivers/of/fdt.c included 'asm/setup.h' twice, remove the duplicate.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-02-27 10:09:25 -06:00
Grant Likely 964dba2834 devicetree: Add empty of_platform_populate() for !CONFIG_OF_ADDRESS (sparc)
Sparc has its own helpers for translating address ranges when the device
tree is parsed at boot time, and it isn't able to use of_platform_populate().
However, there are some device drivers that want to use that function on
other DT enabled platforms (ie. TWL4030).  This patch adds an empty
of_platform_populate() implementation that returns an error when
CONFIG_OF_ADDRESS is not selected.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
2012-02-26 16:48:06 -07:00
Grant Likely 0f22dd395f of: Only compile OF_DYNAMIC on PowerPC pseries and iseries
Only two architectures use the OF node reference counting and reclaim bits.
There is no need to compile it for the rest of the PowerPC platforms or for
any of the other architectures.  This patch makes iseries and pseries
select CONFIG_OF_DYNAMIC, and makes it default to off for everything else.

It is still safe to turn on CONFIG_OF_DYNAMIC on all architectures, it just
isn't necessary.

v2: Also select OF_DYNAMIC for PPC_CHROMA and MPC885ADS as reported by Michael
    Meuling

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Jimi Xenidis <jimix@pobox.com> (for PPC_CHROMA bug fix)
Cc: Rob Herring <rob.herring@calxeda.com>
2012-02-21 13:33:00 -07:00
Grant Likely 07d57a32fb drivercore: Output common devicetree information in uevent
When userspace needs to find a specific device, it currently isn't easy to
resolve a /sys/devices/ path from a specific device tree node.  Nor is it
easy to obtain the compatible list for devices.

This patch generalizes the code that inserts OF_* values into the uevent
device attribute so that any device that is attached to an OF node will
have that information exported to userspace.  Without this patch only
platform devices and some powerpc-specific busses have access to this
data.

The original function also creates a MODALIAS property for the compatible
list, but that code has not been generalized into the common case because
it has the potential to break module loading on a lot of bus types.  Bus
types are still responsible for their own MODALIAS properties.

Boot tested on ARM and compile tested on PowerPC and SPARC.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: Frederic Lambert <frdrc66@gmail.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Mark Brown <broonie@sirena.org.uk>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-01 14:26:30 -07:00
Grant Likely 7aff0fe330 of: Add of_property_match_string() to find index into a string list
Add a helper function for finding the index of a string in a string
list property.  This helper is useful for bindings that use a separate
*-name property for attaching names to tuples in another property such
as 'reg' or 'gpios'.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-01-28 10:29:20 -07:00
Russell King c0f72f8a92 ARM: amba: of: convert to use amba_device_alloc
Convert DT code to use the new amba_device_alloc APIs.

Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-25 11:02:01 +00:00
Linus Torvalds 81d48f0aee 2nd set of device tree changes for v3.3
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mergetag object 14c173eb63
 type commit
 tag spi-for-linus
 tagger Grant Likely <grant.likely@secretlab.ca> 1326520366 -0700
 
 SPI bug fixes for v3.3
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Merge tags 'devicetree-for-linus' and 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6

2nd set of device tree changes and SPI bug fixes for v3.3

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  of/irq: Add interrupts-names property to name an irq resource
  of/address: Add reg-names property to name an iomem resource

* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  spi/tegra: depend instead of select TEGRA_SYSTEM_DMA
2012-01-14 13:25:55 -08:00
Yu Yue eb52d58013 of: add include asm/setup.h in drivers/of/fdt.c
In the file drivers/of/fdt.c, it uses the COMMAND_LINE_SIZE which is stated
in asm/setup.h, so asm/setup.h should be included in drivers/of/fdt.c.

Signed-off-by: Yu Yue <yuyue@mprc.pku.edu.cn>
Signed-off-by: Guan Xuetao <guanxuetao@mprc.pku.edu.cn>

Cc: Grant Likerly <grant.likely@secretlab.ca>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Arnd Bergmann <arnd@arndb.de>
2012-01-10 10:29:41 +08:00
Linus Torvalds 02550d61f4 devicetree/next changes queued for v3.3 merge window
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6

devicetree/next changes queued for v3.3 merge window

* tag 'devicetree-for-linus-20120104' of git://git.secretlab.ca/git/linux-2.6:
  ARM: prom.h: Fix build error by removing unneeded header file
  irq: check domain hwirq range for DT translate
  dt: add empty of_get_node/of_put_node functions
  of/pdt: fix section mismatch warning
  i2c-designware: add OF binding support
  dt/i2c: Enumerate some of the known trivial i2c devices
  dt: reform for_each_property to for_each_property_of_node
  ARM/of: allow *machine_desc.dt_compat to be const
  of/base: Take NULL string into account for property with multiple strings
  OF/device-tree: Add some entries to vendor-prefixes.txt

Fix up trivial add-add conflicts in include/linux/of.h
2012-01-07 12:18:52 -08:00
Linus Torvalds fbce1c234f Changes queued in gpio/next for the start of the 3.3 merge window
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6

Changes queued in gpio/next for the start of the 3.3 merge window

* tag 'gpio-for-linus-20120104' of git://git.secretlab.ca/git/linux-2.6:
  gpio: Add decode of WM8994 GPIO configuration
  gpio: Convert GPIO drivers to module_platform_driver
  gpio: Fix typo in comment in Samsung driver
  gpio: Explicitly index samsung_gpio_cfgs
  gpio: Add Linus Walleij as gpio co-maintainer
  of: Add device tree selftests
  of: create of_phandle_args to simplify return of phandle parsing data
  gpio/powerpc: Eliminate duplication of of_get_named_gpio_flags()
  gpio/microblaze: Eliminate duplication of of_get_named_gpio_flags()
  gpiolib: output basic details and consolidate gpio device drivers
  pch_gpio: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor
  pch_gpio: Support new device LAPIS Semiconductor ML7831 IOH
  spi/pl022: make the chip deselect handling thread safe
  spi/pl022: add support for pm_runtime autosuspend
  spi/pl022: disable the PL022 block when unused
  spi/pl022: move device disable to workqueue thread
  spi/pl022: skip default configuration before suspending
  spi/pl022: fix build warnings
  spi/pl022: only enable RX interrupts when TX is complete
2012-01-07 12:15:36 -08:00
Fabio Estevam c89810acbc ARM: prom.h: Fix build error by removing unneeded header file
Fix the following build error:

  CC [M]  fs/udf/balloc.o
In file included from /home/fabio/next/linux-next/arch/arm/include/asm/prom.h:16,
                 from include/linux/of.h:140,
                 from include/asm-generic/gpio.h:7,
                 from arch/arm/plat-mxc/include/mach/irqs.h:14,
                 from /home/fabio/next/linux-next/arch/arm/include/asm/irq.h:4,
                 from /home/fabio/next/linux-next/arch/arm/include/asm/hardirq.h:6,
                 from include/linux/hardirq.h:7,
                 from include/linux/highmem.h:8,
                 from include/linux/pagemap.h:10,
                 from include/linux/buffer_head.h:13,
                 from fs/udf/udfdecl.h:11,
                 from fs/udf/balloc.c:22:
/home/fabio/next/linux-next/arch/arm/include/asm/setup.h:146: error: redefinition of 'struct tag'

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
[grant.likely: fix build failure on drivers/of/fdt.c]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-01-04 23:47:52 -07:00
Benoit Cousson 661db794eb of/irq: Add interrupts-names property to name an irq resource
Add a interrupts-names property to allow the possibility to provide a name
to any interrupts entries.  If the name is available, use it to name the
resource, otherwise keep the device full name.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
[grant.likely: use "interrupt-names" and tidy documentation]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-01-04 00:33:15 -07:00
Benoit Cousson 35f3da32af of/address: Add reg-names property to name an iomem resource
Add a reg-names property to allow for reg regions to be reference by name
instead of by index.  Some devices have multiple register regions which
are more naturally referenced by name.

If the name is available, use it to name the resource when creating a devices.
Otherwise keep the device name.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
[Generalized documentation to be for any -names property]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-01-04 00:27:22 -07:00
Sam Ravnborg 75c71848f2 of/pdt: fix section mismatch warning
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 <sam@ravnborg.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2011-12-27 16:37:30 -06:00
Dong Aisheng 8af0da93da dt: reform for_each_property to for_each_property_of_node
Make this macro easier to use(do not need to pass properties, a node is
enough), also change to a more sensible name as for_each_child_of_node.

Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2011-12-27 10:57:37 -06:00
Uwe Kleine-König 7b482c8360 ARM/of: allow *machine_desc.dt_compat to be const
This allows dt_compat to point to a constant list of compatible strings.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2011-12-27 10:57:13 -06:00
Benoit Cousson 88af7f58c6 of/base: Take NULL string into account for property with multiple strings
The current implementation just ignore any NULL string inserted in a
multiple strings property.
In some cases we can have a property with a fix number of strings but
not necessarily used, like for example in a list of valid pinmux modes.

 prop = "uart_rx", "uart_tx", "", "", "safe_mode";

Do no skip NULL string and take them into account in
of_property_read_string_index and of_property_count_strings.

Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2011-12-19 15:40:11 -06:00
Grant Likely f88e1ae8ac dt/device: Fix auxdata matching to handle entries without a name override
There is no requirement to override name entries in auxdata.  Fix the
entry matching to use .compatible instead of .name to find the end of the
list.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-12-12 14:41:45 -07:00
Grant Likely 53a42093d9 of: Add device tree selftests
Add some runtime test cases for the library of device tree parsing functions.

v2: - Add testcase for phandle with 0 args
    - Don't run testcases if testcase data isn't present in device tree

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-12-12 13:40:16 -07:00
Grant Likely 15c9a0acc3 of: create of_phandle_args to simplify return of phandle parsing data
of_parse_phandle_with_args() needs to return quite a bit of data.  Rather
than making each datum a separate **out_ argument, this patch creates
struct of_phandle_args to contain all the returned data and reworks the
user of the function.  This patch also enables of_parse_phandle_with_args()
to return the device node pointer for the phandle node.

This patch also ends up being fairly major surgery to
of_parse_handle_with_args().  The existing structure didn't work well
when extending to use of_phandle_args, and I discovered bugs during testing.
I also took the opportunity to rename the function to be like the
existing of_parse_phandle().

v2: - moved declaration of of_phandle_args to fix compile on non-DT builds
    - fixed incorrect index in example usage
    - fixed incorrect return code handling for empty entries

Reviewed-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-12-12 13:40:16 -07:00
Grant Likely 64842aad5e gpiolib: output basic details and consolidate gpio device drivers
This patch adds a kernel message, containing GPIO range and device
name on successful device registration, and removes duplicate messages from the following drivers:
	* gpio-adp5588
	* gpio-bt8xx
	* gpio-cs5535
	* gpio-janz-ttl
	* gpio-nomadik
	* gpio-pcf857x
	* gpio-xilinx
	* drivers/of/gpio.c

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
[grant.likely@secretlab.ca: squashed 2 patches together]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-12-12 13:40:16 -07:00
Anton Vorontsov 77a7300aba of/irq: Get rid of NO_IRQ usage
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>
2011-12-07 09:06:37 -08:00
Rob Herring d7fb6d0adb of/irq: of_irq_init: add check for parent equal to child node
With the revert of "of/irq: of_irq_find_parent: check for parent equal to
child" (dc93728084), 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>
2011-11-29 08:22:40 -06:00
Linus Torvalds b4bbb02934 Revert "of/irq: of_irq_find_parent: check for parent equal to child"
This reverts commit dc93728084.

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>
2011-11-22 15:09:20 -08:00
Linus Torvalds 32aaeffbd4 Merge branch 'modsplit-Oct31_2011' of 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
2011-11-06 19:44:47 -08:00
Linus Torvalds 1197ab2942 Merge branch 'next' of 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
2011-11-06 17:12:03 -08:00
Olof Johansson 303f59d1a7 dt/platform: minor cleanup
* 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>
2011-11-03 15:49:24 -05:00
Linus Torvalds 367069f16e Merge branch 'next/dt' of git://git.linaro.org/people/arnd/arm-soc
* '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}
2011-11-01 21:02:35 -07:00
Linus Torvalds 81a3c10ce8 Merge branch 'next/cleanup2' of git://git.linaro.org/people/arnd/arm-soc
* '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
2011-11-01 20:58:25 -07:00
Paul Gortmaker 2c8d667a31 drivers/of: include export.h for EXPORT_SYMBOL_GPL/THIS_MODULE as required
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>
2011-10-31 19:31:56 -04:00
Paul Gortmaker 48a9e412b6 drivers/of: Add module.h to of_spi.c
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>
2011-10-31 19:31:55 -04:00
Paul Gortmaker 9775913fa0 of: of_pci.c needs export.h since it uses EXPORT_SYMBOLS
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>
2011-10-31 19:31:14 -04:00
Arnd Bergmann 08cab72f91 Merge branch 'dt/gic' into next/dt
Conflicts:
	arch/arm/include/asm/localtimer.h
	arch/arm/mach-msm/board-msm8x60.c
	arch/arm/mach-omap2/board-generic.c
2011-10-31 14:08:10 +01:00
Rob Herring c71a54b082 of/irq: introduce of_irq_init
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>
2011-10-31 14:03:22 +01:00
Kyle Moffett ae97159aed of_mdio: Don't phy_scan_fixups() twice
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>
2011-10-25 06:55:52 +02:00
Grant Likely 9514a56753 Merge branch 'for-grant' of git://git.jdl.com/software/linux-3.0 into devicetree/next 2011-10-05 10:52:27 -06:00
Rob Herring dc93728084 of/irq: of_irq_find_parent: check for parent equal to child
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>
2011-10-05 07:39:37 -05:00
Jamie Iles 4cd7f7a311 dt: add helper to read 64-bit integers
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>
2011-10-04 16:59:53 -06:00
Benoit Cousson 4fcd15a032 of: Add helpers to get one string in multiple strings property
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>
2011-10-04 09:52:23 -07:00
Shawn Guo 611cad7201 dt: add of_alias_scan and of_alias_get_id
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>
2011-09-22 11:12:10 -06:00
Benjamin Herrenschmidt 78b782cb78 of: Change logic to overwrite cmd_line with CONFIG_CMDLINE
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>
2011-09-20 16:09:34 +10:00
Grant Likely fe55c1844a Revert "dt: add of_alias_scan and of_alias_get_id"
This reverts commit 750f463a74.

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>
2011-08-04 11:26:24 +01:00
Shawn Guo 750f463a74 dt: add of_alias_scan and of_alias_get_id
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>
2011-08-03 13:02:31 +01:00
Linus Torvalds a6b11f5338 Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6
* '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
2011-08-02 20:49:57 -10:00
Jamie Iles aac285c6cb of: constify property name parameters for helper functions
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>
2011-08-02 16:50:47 +01:00
Linus Torvalds 4a2d732f5d Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6
* '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
2011-08-01 06:13:48 -10:00