linux-toradex.git/drivers/of/platform.c, branch v3.10.2

of: add missing documentation for of_platform_populate()

2013-01-09T10:49:52+00:00

15c3597d (dt/platform: allow device name to be overridden) added a
lookup parameter to of_platform_populate() but did not update the
documentation.  This patch adds the missing documentation entry.

Cc: Grant Likely 
Cc: Jiri Kosina 
Signed-off-by: Javi Merino 
Signed-off-by: Jiri Kosina

of/platform: sparse fix

2012-10-17T20:53:03+00:00

drivers/of/platform.c:110:59: warning: incorrect type in argument 2 (different base types)
drivers/of/platform.c:110:59:    expected restricted __be32 const [usertype] *addr
drivers/of/platform.c:110:59:    got unsigned int const [usertype] *[assigned] reg

Signed-off-by: Kim Phillips 
Signed-off-by: Rob Herring

of: Allow busses with #size-cells=0

2012-08-03T13:01:46+00:00

It's quite legitimate for a DT node to specify #size-cells=0. One example
is a node that's used to collect a number of non-memory-mapped devices.
In that scenario, there may be multiple child nodes with the same name
(type) thus necessitating the use of unit addresses in node names, and
reg properties:

/ {
	regulators {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <0>;

		regulator@0 {
			compatible = "regulator-fixed";
			reg = <0>;
			...
		};

		regulator@1 {
			compatible = "regulator-fixed";
			reg = <1>;
			...
		};

		...
	};
};

However, #size-cells=0 prevents translation of reg property values into
the parent node's address space. In turn, this triggers the kernel to
emit error messages during boot, such as:

    prom_parse: Bad cell count for /regulators/regulator@0

To prevent printing these error messages for legitimate DT content, a
number of changes are made:

1) of_get_address()/of_get_pci_address() are modified only to validate
   the value of #address-cells, and not #size-cells.

2) of_can_translate_address() is added to indicate whether address
   translation is possible.

3) of_device_make_bus_id() is modified to name devices based on the
   translated address only where possible, and otherwise fall back to
   using the (first cell of the) raw untranslated address.

4) of_device_alloc() is modified to create memory resources for a device
   only if the address can be translated into the CPU's address space.

Signed-off-by: Stephen Warren 
Signed-off-by: Rob Herring

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2012-07-11T19:44:25+00:00

Pull ARM SoC fixes from Arnd Bergmann:
 -  multiple omap2+ bug fixes
 - a regression on ux500 dt support
 - a build failure on shmobile

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP2+: omap2plus_defconfig: EHCI driver is not stable, disable it
  ARM: shmobile: fix platsmp.c build when ARCH_SH73A0=n
  ARM: ux500: Over-ride the DT device naming scheme for pinctrl
  ARM: ux500: Fix build errors/warnings when MACH_UX500_DT is not set
  of: address: Don't fail a lookup just because a node has no reg property
  ARM: OMAP2+: hwmod code/clockdomain data: fix 32K sync timer

of: address: Don't fail a lookup just because a node has no reg property

2012-07-06T19:42:10+00:00

Sometimes it doesn't make any sense for a node to have an address.
In this case device lookup will always be unsuccessful because we
currently assume every node will have a reg property. This patch
changes the semantics so that the resource address and the lookup
address will only be compared if one exists.

Things like AUXDATA() rely on of_dev_lookup to return the lookup
entry of a particular device in order to do things like apply
platform_data to a device. However, this is currently broken for
nodes which do not have a reg property, meaning that platform_data
can not be passed in those cases.

Acked-by: Rob Herring 
Acked-by: Arnd Bergmann 
Signed-off-by: Lee Jones

of: export of_platform_populate()

2012-06-13T18:34:38+00:00

Without this, modules can't use this API, leading to build failures.

Signed-off-by: Stephen Warren 
Signed-off-by: Rob Herring

Merge branch 'for-armsoc' of git://git.linaro.org/people/rmk/linux-arm

2012-03-24T00:30:49+00:00

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
  ...

devicetree: Add empty of_platform_populate() for !CONFIG_OF_ADDRESS (sparc)

2012-02-26T23:48:06+00:00

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 
Cc: Benoit Cousson 
Cc: Samuel Ortiz

ARM: amba: of: convert to use amba_device_alloc

2012-01-25T11:02:01+00:00

Convert DT code to use the new amba_device_alloc APIs.

Acked-by: Rob Herring 
Signed-off-by: Russell King

dt/device: Fix auxdata matching to handle entries without a name override

2011-12-12T21:41:45+00:00

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