Several architectures using DT support built-in dtb's in the init
section. These platforms need to copy the dtb from init since the
strings are referenced after unflattening. Every arch has their own
copying routine which do the same thing. Create a common function,
unflatten_and_copy_device_tree, to copy the dtb when unflattening the
dtb.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Pull DMA-mapping fix from Marek Szyprowski:
"A build bugfix for the device tree support for reserved memory
regions. Due to superfluous include the common code failed to build
on ARM64 and MIPS architectures.
The patch that caused the build break has lived at linux-next for
about two weeks and noone noticed the issue, what convinced me that
everything was ok"
* 'for-v3.12-fix' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
drivers: of: fix build break if asm/dma-contiguous.h is missing
Generally minor changes. A bunch of bug fixes, particularly for
initialization and some refactoring. Most notable change if feeding the
entire flattened tree into the random pool at boot. May not be
significant, but shouldn't hurt either.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Pull device tree core updates from Grant Likely:
"Generally minor changes. A bunch of bug fixes, particularly for
initialization and some refactoring. Most notable change if feeding
the entire flattened tree into the random pool at boot. May not be
significant, but shouldn't hurt either"
Tim Bird questions whether the boot time cost of the random feeding may
be noticeable. And "add_device_randomness()" is definitely not some
speed deamon of a function.
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
of/platform: add error reporting to of_amba_device_create()
irq/of: Fix comment typo for irq_of_parse_and_map
of: Feed entire flattened device tree into the random pool
of/fdt: Clean up casting in unflattening path
of/fdt: Remove duplicate memory clearing on FDT unflattening
gpio: implement gpio-ranges binding document fix
of: call __of_parse_phandle_with_args from of_parse_phandle
of: introduce of_parse_phandle_with_fixed_args
of: move of_parse_phandle()
of: move documentation of of_parse_phandle_with_args
of: Fix missing memory initialization on FDT unflattening
of: consolidate definition of early_init_dt_alloc_memory_arch()
of: Make of_get_phy_mode() return int i.s.o. const int
include: dt-binding: input: create a DT header defining key codes.
of/platform: Staticize of_platform_device_create_pdata()
of: Specify initrd location using 64-bit
dt: Typo fix
OF: make of_property_for_each_{u32|string}() use parameters if OF is not enabled
It is not needed to include asm/dma-contiguous.h header to compile
reserved memory initialization code, so remove it to avoid build break
on architectures without CMA support.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Pull DMA mapping update from Marek Szyprowski:
"This contains an addition of Device Tree support for reserved memory
regions (Contiguous Memory Allocator is one of the drivers for it) and
changes required by the KVM extensions for PowerPC architectue"
* 'for-v3.12' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
ARM: init: add support for reserved memory defined by device tree
drivers: of: add initialization code for dma reserved memory
drivers: of: add function to scan fdt nodes given by path
drivers: dma-contiguous: clean source code and prepare for device tree
Add error reporting to of_amba_device_create() so the user knows
when (and why) some device tree nodes fail to initialize.
[ The issue was spotted on Universal C210 board (using revision 0 of
ARM Exynos4210 SoC) on which initialization was silently failing
for PL330 MDMA1 device tree node (it was using the wrong addres
resulting in amba_device_add() returning -ENODEV). ]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Fix trivial comment typo for irq_of_parse_and_map().
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
This branch contains mostly additions and changes to platform enablement
and SoC-level drivers. Since there's sometimes a dependency on device-tree
changes, there's also a fair amount of those in this branch.
Pieces worth mentioning are:
- Mbus driver for Marvell platforms, allowing kernel configuration
and resource allocation of on-chip peripherals.
- Enablement of the mbus infrastructure from Marvell PCI-e drivers.
- Preparation of MSI support for Marvell platforms.
- Addition of new PCI-e host controller driver for Tegra platforms
- Some churn caused by sharing of macro names between i.MX 6Q and 6DL
platforms in the device tree sources and header files.
- Various suspend/PM updates for Tegra, including LP1 support.
- Versatile Express support for MCPM, part of big little support.
- Allwinner platform support for A20 and A31 SoCs (dual and quad Cortex-A7)
- OMAP2+ support for DRA7, a new Cortex-A15-based SoC.
The code that touches other architectures are patches moving
MSI arch-specific functions over to weak symbols and removal of
ARCH_SUPPORTS_MSI, acked by PCI maintainers.
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Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform changes from Olof Johansson:
"This branch contains mostly additions and changes to platform
enablement and SoC-level drivers. Since there's sometimes a
dependency on device-tree changes, there's also a fair amount of
those in this branch.
Pieces worth mentioning are:
- Mbus driver for Marvell platforms, allowing kernel configuration
and resource allocation of on-chip peripherals.
- Enablement of the mbus infrastructure from Marvell PCI-e drivers.
- Preparation of MSI support for Marvell platforms.
- Addition of new PCI-e host controller driver for Tegra platforms
- Some churn caused by sharing of macro names between i.MX 6Q and 6DL
platforms in the device tree sources and header files.
- Various suspend/PM updates for Tegra, including LP1 support.
- Versatile Express support for MCPM, part of big little support.
- Allwinner platform support for A20 and A31 SoCs (dual and quad
Cortex-A7)
- OMAP2+ support for DRA7, a new Cortex-A15-based SoC.
The code that touches other architectures are patches moving MSI
arch-specific functions over to weak symbols and removal of
ARCH_SUPPORTS_MSI, acked by PCI maintainers"
* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (266 commits)
tegra-cpuidle: provide stub when !CONFIG_CPU_IDLE
PCI: tegra: replace devm_request_and_ioremap by devm_ioremap_resource
ARM: tegra: Drop ARCH_SUPPORTS_MSI and sort list
ARM: dts: vf610-twr: enable i2c0 device
ARM: dts: i.MX51: Add one more I2C2 pinmux entry
ARM: dts: i.MX51: Move pins configuration under "iomuxc" label
ARM: dtsi: imx6qdl-sabresd: Add USB OTG vbus pin to pinctrl_hog
ARM: dtsi: imx6qdl-sabresd: Add USB host 1 VBUS regulator
ARM: dts: imx27-phytec-phycore-som: Enable AUDMUX
ARM: dts: i.MX27: Disable AUDMUX in the template
ARM: dts: wandboard: Add support for SDIO bcm4329
ARM: i.MX5 clocks: Remove optional clock setup (CKIH1) from i.MX51 template
ARM: dts: imx53-qsb: Make USBH1 functional
ARM i.MX6Q: dts: Enable I2C1 with EEPROM and PMIC on Phytec phyFLEX-i.MX6 Ouad module
ARM i.MX6Q: dts: Enable SPI NOR flash on Phytec phyFLEX-i.MX6 Ouad module
ARM: dts: imx6qdl-sabresd: Add touchscreen support
ARM: imx: add ocram clock for imx53
ARM: dts: imx: ocram size is different between imx6q and imx6dl
ARM: dts: imx27-phytec-phycore-som: Fix regulator settings
ARM: dts: i.MX27: Remove clock name from CPU node
...
Pull i2c updates from Wolfram Sang:
"Highlights:
- OF and ACPI helpers are now included in the core, and not in
external files anymore. This removes dependency problems for
modules and is cleaner, in general.
- mv64xxx-driver gains fifo usage to support mv78230
- imx-driver overhaul to support VF610
- various cleanups, most notably related to devm_* and CONFIG_PM
usage
- driver bugfixes and smaller feature additions"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (51 commits)
i2c: rcar: add rcar-H2 support
i2c: sirf: retry 3 times as sometimes we get random noack and timeout
i2c: sirf: support reverse direction of address
i2c: sirf: fix the typo for setting bitrate to less than 100k
i2c: sirf: we need to wait I2C_RESET status in resume
i2c: sirf: reset i2c controller early after we get a noack
i2c: designware: get SDA hold time, HCNT and LCNT configuration from ACPI
i2c: designware: make HCNT/LCNT values configurable
i2c: mpc: cleanup clock API use
i2c: pnx: fix error return code in i2c_pnx_probe()
i2c: ismt: add error return code in probe()
i2c: mv64xxx: fix typo in binding documentation
i2c: imx: use exact SoC revision to document binding
i2c: move ACPI helpers into the core
i2c: move OF helpers into the core
i2c: mv64xxx: Fix timing issue on Armada XP (errata FE-8471889)
i2c: mv64xxx: Add I2C Transaction Generator support
i2c: powermac: fix return path on error
Documentation: i2c: Fix example in instantiating-devices
i2c: tiny-usb: do not use stack as URB transfer_buffer
...
1) ACPI-based PCI hotplug (ACPIPHP) subsystem rework and introduction
of Intel Thunderbolt support on systems that use ACPI for signalling
Thunderbolt hotplug events. This also should make ACPIPHP work in
some cases in which it was known to have problems. From
Rafael J Wysocki, Mika Westerberg and Kirill A Shutemov.
2) ACPI core code cleanups and dock station support cleanups from
Jiang Liu and Rafael J Wysocki.
3) Fixes for locking problems related to ACPI device hotplug from
Rafael J Wysocki.
4) ACPICA update to version 20130725 includig fixes, cleanups, support
for more than 256 GPEs per GPE block and a change to make the ACPI
PM Timer optional (we've seen systems without the PM Timer in the
field already). One of the fixes, related to the DeRefOf operator,
is necessary to prevent some Windows 8 oriented AML from causing
problems to happen. From Bob Moore, Lv Zheng, and Jung-uk Kim.
5) Removal of the old and long deprecated /proc/acpi/event interface
and related driver changes from Thomas Renninger.
6) ACPI and Xen changes to make the reduced hardware sleep work with
the latter from Ben Guthro.
7) ACPI video driver cleanups and a blacklist of systems that should
not tell the BIOS that they are compatible with Windows 8 (or ACPI
backlight and possibly other things will not work on them). From
Felipe Contreras.
8) Assorted ACPI fixes and cleanups from Aaron Lu, Hanjun Guo,
Kuppuswamy Sathyanarayanan, Lan Tianyu, Sachin Kamat, Tang Chen,
Toshi Kani, and Wei Yongjun.
9) cpufreq ondemand governor target frequency selection change to
reduce oscillations between min and max frequencies (essentially,
it causes the governor to choose target frequencies proportional
to load) from Stratos Karafotis.
10) cpufreq fixes allowing sysfs attributes file permissions to be
preserved over suspend/resume cycles Srivatsa S Bhat.
11) Removal of Device Tree parsing for CPU device nodes from multiple
cpufreq drivers that required some changes related to
of_get_cpu_node() to be made in a few architectures and in the
driver core. From Sudeep KarkadaNagesha.
12) cpufreq core fixes and cleanups related to mutual exclusion and
driver module references from Viresh Kumar, Lukasz Majewski and
Rafael J Wysocki.
13) Assorted cpufreq fixes and cleanups from Amit Daniel Kachhap,
Bartlomiej Zolnierkiewicz, Hanjun Guo, Jingoo Han, Joseph Lo,
Julia Lawall, Li Zhong, Mark Brown, Sascha Hauer, Stephen Boyd,
Stratos Karafotis, and Viresh Kumar.
14) Fixes to prevent race conditions in coupled cpuidle from happening
from Colin Cross.
15) cpuidle core fixes and cleanups from Daniel Lezcano and
Tuukka Tikkanen.
16) Assorted cpuidle fixes and cleanups from Daniel Lezcano,
Geert Uytterhoeven, Jingoo Han, Julia Lawall, Linus Walleij,
and Sahara.
17) System sleep tracing changes from Todd E Brandt and Shuah Khan.
18) PNP subsystem conversion to using struct dev_pm_ops for power
management from Shuah Khan.
/
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Merge tag 'pm+acpi-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael Wysocki:
1) ACPI-based PCI hotplug (ACPIPHP) subsystem rework and introduction
of Intel Thunderbolt support on systems that use ACPI for signalling
Thunderbolt hotplug events. This also should make ACPIPHP work in
some cases in which it was known to have problems. From
Rafael J Wysocki, Mika Westerberg and Kirill A Shutemov.
2) ACPI core code cleanups and dock station support cleanups from
Jiang Liu and Rafael J Wysocki.
3) Fixes for locking problems related to ACPI device hotplug from
Rafael J Wysocki.
4) ACPICA update to version 20130725 includig fixes, cleanups, support
for more than 256 GPEs per GPE block and a change to make the ACPI
PM Timer optional (we've seen systems without the PM Timer in the
field already). One of the fixes, related to the DeRefOf operator,
is necessary to prevent some Windows 8 oriented AML from causing
problems to happen. From Bob Moore, Lv Zheng, and Jung-uk Kim.
5) Removal of the old and long deprecated /proc/acpi/event interface
and related driver changes from Thomas Renninger.
6) ACPI and Xen changes to make the reduced hardware sleep work with
the latter from Ben Guthro.
7) ACPI video driver cleanups and a blacklist of systems that should
not tell the BIOS that they are compatible with Windows 8 (or ACPI
backlight and possibly other things will not work on them). From
Felipe Contreras.
8) Assorted ACPI fixes and cleanups from Aaron Lu, Hanjun Guo,
Kuppuswamy Sathyanarayanan, Lan Tianyu, Sachin Kamat, Tang Chen,
Toshi Kani, and Wei Yongjun.
9) cpufreq ondemand governor target frequency selection change to
reduce oscillations between min and max frequencies (essentially,
it causes the governor to choose target frequencies proportional
to load) from Stratos Karafotis.
10) cpufreq fixes allowing sysfs attributes file permissions to be
preserved over suspend/resume cycles Srivatsa S Bhat.
11) Removal of Device Tree parsing for CPU device nodes from multiple
cpufreq drivers that required some changes related to
of_get_cpu_node() to be made in a few architectures and in the
driver core. From Sudeep KarkadaNagesha.
12) cpufreq core fixes and cleanups related to mutual exclusion and
driver module references from Viresh Kumar, Lukasz Majewski and
Rafael J Wysocki.
13) Assorted cpufreq fixes and cleanups from Amit Daniel Kachhap,
Bartlomiej Zolnierkiewicz, Hanjun Guo, Jingoo Han, Joseph Lo,
Julia Lawall, Li Zhong, Mark Brown, Sascha Hauer, Stephen Boyd,
Stratos Karafotis, and Viresh Kumar.
14) Fixes to prevent race conditions in coupled cpuidle from happening
from Colin Cross.
15) cpuidle core fixes and cleanups from Daniel Lezcano and
Tuukka Tikkanen.
16) Assorted cpuidle fixes and cleanups from Daniel Lezcano,
Geert Uytterhoeven, Jingoo Han, Julia Lawall, Linus Walleij,
and Sahara.
17) System sleep tracing changes from Todd E Brandt and Shuah Khan.
18) PNP subsystem conversion to using struct dev_pm_ops for power
management from Shuah Khan.
* tag 'pm+acpi-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (217 commits)
cpufreq: Don't use smp_processor_id() in preemptible context
cpuidle: coupled: fix race condition between pokes and safe state
cpuidle: coupled: abort idle if pokes are pending
cpuidle: coupled: disable interrupts after entering safe state
ACPI / hotplug: Remove containers synchronously
driver core / ACPI: Avoid device hot remove locking issues
cpufreq: governor: Fix typos in comments
cpufreq: governors: Remove duplicate check of target freq in supported range
cpufreq: Fix timer/workqueue corruption due to double queueing
ACPI / EC: Add ASUSTEK L4R to quirk list in order to validate ECDT
ACPI / thermal: Add check of "_TZD" availability and evaluating result
cpufreq: imx6q: Fix clock enable balance
ACPI: blacklist win8 OSI for buggy laptops
cpufreq: tegra: fix the wrong clock name
cpuidle: Change struct menu_device field types
cpuidle: Add a comment warning about possible overflow
cpuidle: Fix variable domains in get_typical_interval()
cpuidle: Fix menu_device->intervals type
cpuidle: CodingStyle: Break up multiple assignments on single line
cpuidle: Check called function parameter in get_typical_interval()
...
Here's the big tty/serial driver pull request for 3.12-rc1.
Lots of n_tty reworks to resolve some very long-standing issues, removing the
3-4 different locks that were taken for every character. This code has been
beaten on for a long time in linux-next with no reported regressions.
Other than that, a range of serial and tty driver updates and revisions. Full
details in the shortlog.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver patches from Greg KH:
"Here's the big tty/serial driver pull request for 3.12-rc1.
Lots of n_tty reworks to resolve some very long-standing issues,
removing the 3-4 different locks that were taken for every character.
This code has been beaten on for a long time in linux-next with no
reported regressions.
Other than that, a range of serial and tty driver updates and
revisions. Full details in the shortlog"
* tag 'tty-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (226 commits)
hvc_xen: Remove unnecessary __GFP_ZERO from kzalloc
serial: imx: initialize the local variable
tty: ar933x_uart: add device tree support and binding documentation
tty: ar933x_uart: allow to build the driver as a module
ARM: dts: msm: Update uartdm compatible strings
devicetree: serial: Document msm_serial bindings
serial: unify serial bindings into a single dir
serial: fsl-imx-uart: Cleanup duplicate device tree binding
tty: ar933x_uart: use config_enabled() macro to clean up ifdefs
tty: ar933x_uart: remove superfluous assignment of ar933x_uart_driver.nr
tty: ar933x_uart: use the clk API to get the uart clock
tty: serial: cpm_uart: Adding proper request of GPIO used by cpm_uart driver
serial: sirf: fix the amount of serial ports
serial: sirf: define macro for some magic numbers of USP
serial: icom: move array overflow checks earlier
TTY: amiserial, remove unnecessary platform_set_drvdata()
serial: st-asc: remove unnecessary platform_set_drvdata()
msm_serial: Send more than 1 character on the console w/ UARTDM
msm_serial: Add support for non-GSBI UARTDM devices
msm_serial: Switch clock consumer strings and simplify code
...
We feed the entire DMI table into the random pool to provide
better random data during early boot, so do the same with the
flattened device tree.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
The flat tree unflatting path is using unsigned longs to carry around
virtual address pointers to the device tree and the allocated memory
used to unpack it. This is a little insane since every access to them
needs to be cast to a pointer type before using it. This patch changes
the data type to void* for the 'start' and 'mem' pointers and reworks
the unflattening functions to use those values directly which results in
slightly simpler code.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Patch 9e4012752, "of: fdt: fix memory initialization for expanded DT"
fixed incomplete clearing of memory when unflattening the device tree.
However the code was already clearing some of the memory, it just wasn't
doing so for all allocations. Now that the memory is cleared right at
the point of allocation, the memset after unflatten_dt_alloc() is
redundant. Remove it.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Wladislav Wiebe <wladislav.kw@gmail.com>
The simplest case of __of_parse_phandle_with_args() now implements the
semantics of of_parse_phandle(). Rewrite of_parse_phandle() to call
__of_parse_phandle_with_args() rather than open-coding the simple case.
Optimize __of_parse_phandle_with_args() so that it doesn't call
of_find_node_by_phandle() except when it's strictly needed. This avoids
introducing too much overhead when replacing of_parse_phandle().
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
This is identical to of_parse_phandle_with_args(), except that the
number of argument cells is fixed, rather than being parsed out of the
node referenced by each phandle.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Move of_parse_phandle() after __of_parse_phandle_with_args(), since a
future patch will call __of_parse_phandle_with_args() from
of_parse_phandle(). Moving the function avoids adding a prototype. Doing
the move separately highlights the code changes separately.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Commit bd69f73 "of: Create function for counting number of phandles in
a property" renamed of_parse_phandle_with_args(), and created a wrapper
function that implemented the original name. However, the documentation
of the original function was not moved, leaving it apparently documenting
the newly renamed function.
Move the documentation so that it is adjacent to the function it
documents.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Any calls to dt_alloc() need to be zeroed. This is a temporary fix, but
the allocation function itself needs to zero memory before returning
it. This is a follow up to patch 9e4012752, "of: fdt: fix memory
initialization for expanded DT" which fixed one call site but missed
another.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Wladislav Wiebe <wladislav.kw@gmail.com>
Cc: stable@vger.kernel.org
Most architectures use the same implementation. Collapse the common ones
into a single weak function that can be overridden.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
include/linux/of_net.h:16: warning: type qualifiers ignored on function return type
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
This patch adds device tree support for contiguous and reserved memory
regions defined in device tree.
Large memory blocks can be reliably reserved only during early boot.
This must happen before the whole memory management subsystem is
initialized, because we need to ensure that the given contiguous blocks
are not yet allocated by kernel. Also it must happen before kernel
mappings for the whole low memory are created, to ensure that there will
be no mappings (for reserved blocks) or mapping with special properties
can be created (for CMA blocks). This all happens before device tree
structures are unflattened, so we need to get reserved memory layout
directly from fdt.
Later, those reserved memory regions are assigned to devices on each
device structure initialization.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Add a function to scan the flattened device-tree starting from the
node given by the path. It is used to extract information (like reserved
memory), which is required on early boot before we can unflatten the tree.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
* pm-cpufreq: (60 commits)
cpufreq: pmac32-cpufreq: remove device tree parsing for cpu nodes
cpufreq: pmac64-cpufreq: remove device tree parsing for cpu nodes
cpufreq: maple-cpufreq: remove device tree parsing for cpu nodes
cpufreq: arm_big_little: remove device tree parsing for cpu nodes
cpufreq: kirkwood-cpufreq: remove device tree parsing for cpu nodes
cpufreq: spear-cpufreq: remove device tree parsing for cpu nodes
cpufreq: highbank-cpufreq: remove device tree parsing for cpu nodes
cpufreq: cpufreq-cpu0: remove device tree parsing for cpu nodes
cpufreq: imx6q-cpufreq: remove device tree parsing for cpu nodes
drivers/bus: arm-cci: avoid parsing DT for cpu device nodes
ARM: mvebu: remove device tree parsing for cpu nodes
ARM: topology: remove hwid/MPIDR dependency from cpu_capacity
of/device: add helper to get cpu device node from logical cpu index
driver/core: cpu: initialize of_node in cpu's device struture
ARM: DT/kernel: define ARM specific arch_match_cpu_phys_id
of: move of_get_cpu_node implementation to DT core library
powerpc: refactor of_get_cpu_node to support other architectures
openrisc: remove undefined of_get_cpu_node declaration
microblaze: remove undefined of_get_cpu_node declaration
cpufreq: fix bad unlock balance on !CONFIG_SMP
...
I2C of helpers used to live in of_i2c.c but experience (from SPI) shows
that it is much cleaner to have this in the core. This also removes a
circular dependency between the helpers and the core, and so we can
finally register child nodes in the core instead of doing this manually
in each driver. So, fix the drivers and documentation, too.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Already existing property flags are filled wrong for properties created from
initial FDT. This could cause problems if this DYNAMIC device-tree functions
are used later, i.e. properties are attached/detached/replaced. Simply dumping
flags from the running system show, that some initial static (not allocated via
kzmalloc()) nodes are marked as dynamic.
I putted some debug extensions to property_proc_show(..) :
..
+ if (OF_IS_DYNAMIC(pp))
+ pr_err("DEBUG: xxx : OF_IS_DYNAMIC\n");
+ if (OF_IS_DETACHED(pp))
+ pr_err("DEBUG: xxx : OF_IS_DETACHED\n");
when you operate on the nodes (e.g.: ~$ cat /proc/device-tree/*some_node*) you
will see that those flags are filled wrong, basically in most cases it will dump
a DYNAMIC or DETACHED status, which is in not true.
(BTW. this OF_IS_DETACHED is a own define for debug purposes which which just
make a test_bit(OF_DETACHED, &x->_flags)
If nodes are dynamic kernel is allowed to kfree() them. But it will crash
attempting to do so on the nodes from FDT -- they are not allocated via
kzmalloc().
Signed-off-by: Wladislav Wiebe <wladislav.kw@gmail.com>
Acked-by: Alexander Sverdlin <alexander.sverdlin@nsn.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
This branch includes a number of enhancements to core SoC support for
Tegra devices. The major new features are:
* Adds a new CPU-power-gated cpuidle state for Tegra114.
* Adds initial system suspend support for Tegra114, initially supporting
just CPU-power-gating during suspend.
* Adds "LP1" suspend mode support for all of Tegra20/30/114. This mode
both gates CPU power, and places the DRAM into self-refresh mode.
* A new DT-driven PCIe driver to Tegra20/30. The driver is also moved
from arch/arm/mach-tegra/ to drivers/pci/host/.
The PCIe driver work depends on the following tag from Thomas Petazzoni:
git://git.infradead.org/linux-mvebu.git mis-3.12.2
... which is merged into the middle of this pull request.
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Merge tag 'tegra-for-3.12-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc
From: Stephen Warren:
ARM: tegra: core SoC enhancements for 3.12
This branch includes a number of enhancements to core SoC support for
Tegra devices. The major new features are:
* Adds a new CPU-power-gated cpuidle state for Tegra114.
* Adds initial system suspend support for Tegra114, initially supporting
just CPU-power-gating during suspend.
* Adds "LP1" suspend mode support for all of Tegra20/30/114. This mode
both gates CPU power, and places the DRAM into self-refresh mode.
* A new DT-driven PCIe driver to Tegra20/30. The driver is also moved
from arch/arm/mach-tegra/ to drivers/pci/host/.
The PCIe driver work depends on the following tag from Thomas Petazzoni:
git://git.infradead.org/linux-mvebu.git mis-3.12.2
... which is merged into the middle of this pull request.
* tag 'tegra-for-3.12-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (33 commits)
ARM: tegra: disable LP2 cpuidle state if PCIe is enabled
MAINTAINERS: Add myself as Tegra PCIe maintainer
PCI: tegra: set up PADS_REFCLK_CFG1
PCI: tegra: Add Tegra 30 PCIe support
PCI: tegra: Move PCIe driver to drivers/pci/host
PCI: msi: add default MSI operations for !HAVE_GENERIC_HARDIRQS platforms
ARM: tegra: add LP1 suspend support for Tegra114
ARM: tegra: add LP1 suspend support for Tegra20
ARM: tegra: add LP1 suspend support for Tegra30
ARM: tegra: add common LP1 suspend support
clk: tegra114: add LP1 suspend/resume support
ARM: tegra: config the polarity of the request of sys clock
ARM: tegra: add common resume handling code for LP1 resuming
ARM: pci: add ->add_bus() and ->remove_bus() hooks to hw_pci
of: pci: add registry of MSI chips
PCI: Introduce new MSI chip infrastructure
PCI: remove ARCH_SUPPORTS_MSI kconfig option
PCI: use weak functions for MSI arch-specific functions
ARM: tegra: unify Tegra's Kconfig a bit more
ARM: tegra: remove the limitation that Tegra114 can't support suspend
...
Signed-off-by: Kevin Hilman <khilman@linaro.org>
This patch moves the generalized implementation of of_get_cpu_node from
PowerPC to DT core library, thereby adding support for retrieving cpu
node for a given logical cpu index on any architecture.
The CPU subsystem can now use this function to assign of_node in the
cpu device while registering CPUs.
It is recommended to use these helper function only in pre-SMP/early
initialisation stages to retrieve CPU device node pointers in logical
ordering. Once the cpu devices are registered, it can be retrieved easily
from cpu device of_node which avoids unnecessary parsing and matching.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
devicetrees may have a linux,stdout-path property in the chosen
node describing the console device. This adds a helper function
to match a device against this property so a driver can call
add_preferred_console for a matching device.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit adds a very basic registry of msi_chip structures, so that
an IRQ controller driver can register an msi_chip, and a PCIe host
controller can find it, based on a 'struct device_node'.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
It is not used outside of this file so doesn't need to be in the global
namespace.
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
On some PAE architectures, the entire range of physical memory could reside
outside the 32-bit limit. These systems need the ability to specify the
initrd location using 64-bit numbers.
This patch globally modifies the early_init_dt_setup_initrd_arch() function to
use 64-bit numbers instead of the current unsigned long.
There has been quite a bit of debate about whether to use u64 or phys_addr_t.
It was concluded to stick to u64 to be consistent with rest of the device
tree code. As summarized by Geert, "The address to load the initrd is decided
by the bootloader/user and set at that point later in time. The dtb should not
be tied to the kernel you are booting"
More details on the discussion can be found here:
https://lkml.org/lkml/2013/6/20/690https://lkml.org/lkml/2012/9/13/544
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
It almost does not matter because most users use only the ->start member
of the struct. However if this struct is passed to a platform device
which is then added via platform_device_add() then the ->parent member is
also used.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
list_first_entry() expects the list is not empty, we need to check if list is
empty before calling list_first_entry(). Thus use list_first_entry_or_null()
instead of list_first_entry().
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Pull networking updates from David Miller:
"This is a re-do of the net-next pull request for the current merge
window. The only difference from the one I made the other day is that
this has Eliezer's interface renames and the timeout handling changes
made based upon your feedback, as well as a few bug fixes that have
trickeled in.
Highlights:
1) Low latency device polling, eliminating the cost of interrupt
handling and context switches. Allows direct polling of a network
device from socket operations, such as recvmsg() and poll().
Currently ixgbe, mlx4, and bnx2x support this feature.
Full high level description, performance numbers, and design in
commit 0a4db187a9 ("Merge branch 'll_poll'")
From Eliezer Tamir.
2) With the routing cache removed, ip_check_mc_rcu() gets exercised
more than ever before in the case where we have lots of multicast
addresses. Use a hash table instead of a simple linked list, from
Eric Dumazet.
3) Add driver for Atheros CQA98xx 802.11ac wireless devices, from
Bartosz Markowski, Janusz Dziedzic, Kalle Valo, Marek Kwaczynski,
Marek Puzyniak, Michal Kazior, and Sujith Manoharan.
4) Support reporting the TUN device persist flag to userspace, from
Pavel Emelyanov.
5) Allow controlling network device VF link state using netlink, from
Rony Efraim.
6) Support GRE tunneling in openvswitch, from Pravin B Shelar.
7) Adjust SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUF for modern times, from
Daniel Borkmann and Eric Dumazet.
8) Allow controlling of TCP quickack behavior on a per-route basis,
from Cong Wang.
9) Several bug fixes and improvements to vxlan from Stephen
Hemminger, Pravin B Shelar, and Mike Rapoport. In particular,
support receiving on multiple UDP ports.
10) Major cleanups, particular in the area of debugging and cookie
lifetime handline, to the SCTP protocol code. From Daniel
Borkmann.
11) Allow packets to cross network namespaces when traversing tunnel
devices. From Nicolas Dichtel.
12) Allow monitoring netlink traffic via AF_PACKET sockets, in a
manner akin to how we monitor real network traffic via ptype_all.
From Daniel Borkmann.
13) Several bug fixes and improvements for the new alx device driver,
from Johannes Berg.
14) Fix scalability issues in the netem packet scheduler's time queue,
by using an rbtree. From Eric Dumazet.
15) Several bug fixes in TCP loss recovery handling, from Yuchung
Cheng.
16) Add support for GSO segmentation of MPLS packets, from Simon
Horman.
17) Make network notifiers have a real data type for the opaque
pointer that's passed into them. Use this to properly handle
network device flag changes in arp_netdev_event(). From Jiri
Pirko and Timo Teräs.
18) Convert several drivers over to module_pci_driver(), from Peter
Huewe.
19) tcp_fixup_rcvbuf() can loop 500 times over loopback, just use a
O(1) calculation instead. From Eric Dumazet.
20) Support setting of explicit tunnel peer addresses in ipv6, just
like ipv4. From Nicolas Dichtel.
21) Protect x86 BPF JIT against spraying attacks, from Eric Dumazet.
22) Prevent a single high rate flow from overruning an individual cpu
during RX packet processing via selective flow shedding. From
Willem de Bruijn.
23) Don't use spinlocks in TCP md5 signing fast paths, from Eric
Dumazet.
24) Don't just drop GSO packets which are above the TBF scheduler's
burst limit, chop them up so they are in-bounds instead. Also
from Eric Dumazet.
25) VLAN offloads are missed when configured on top of a bridge, fix
from Vlad Yasevich.
26) Support IPV6 in ping sockets. From Lorenzo Colitti.
27) Receive flow steering targets should be updated at poll() time
too, from David Majnemer.
28) Fix several corner case regressions in PMTU/redirect handling due
to the routing cache removal, from Timo Teräs.
29) We have to be mindful of ipv4 mapped ipv6 sockets in
upd_v6_push_pending_frames(). From Hannes Frederic Sowa.
30) Fix L2TP sequence number handling bugs, from James Chapman."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1214 commits)
drivers/net: caif: fix wrong rtnl_is_locked() usage
drivers/net: enic: release rtnl_lock on error-path
vhost-net: fix use-after-free in vhost_net_flush
net: mv643xx_eth: do not use port number as platform device id
net: sctp: confirm route during forward progress
virtio_net: fix race in RX VQ processing
virtio: support unlocked queue poll
net/cadence/macb: fix bug/typo in extracting gem_irq_read_clear bit
Documentation: Fix references to defunct linux-net@vger.kernel.org
net/fs: change busy poll time accounting
net: rename low latency sockets functions to busy poll
bridge: fix some kernel warning in multicast timer
sfc: Fix memory leak when discarding scattered packets
sit: fix tunnel update via netlink
dt:net:stmmac: Add dt specific phy reset callback support.
dt:net:stmmac: Add support to dwmac version 3.610 and 3.710
dt:net:stmmac: Allocate platform data only if its NULL.
net:stmmac: fix memleak in the open method
ipv6: rt6_check_neigh should successfully verify neigh if no NUD information are available
net: ipv6: fix wrong ping_v6_sendmsg return value
...
This branch contains the following changes:
- Removal of CONFIG_OF_DEVICE, it is always enabled by CONFIG_OF
- Remove #ifdef from linux/of_platform.h to increase compiler syntax
coverage
- Bug fix for address decoding on Bimini and js2x powerpc platforms.
- miscellaneous binding changes
One note on the above. The binding changes going in from all kinds of
different trees has gotten rather out of hand. I picked up some during
this cycle, but even going though my tree isn't a great fit. Ian
Campbell has prototyped splitting the bindings and .dtb files into a
separate repository. The plan is to migrate to using that sometime in
the next few kernel releases which should get rid of a lot of the churn
on binding docs and .dts files.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Pull device tree updates from Grant Likely:
"This branch contains the following changes:
- Removal of CONFIG_OF_DEVICE, it is always enabled by CONFIG_OF
- Remove #ifdef from linux/of_platform.h to increase compiler syntax
coverage
- Bug fix for address decoding on Bimini and js2x powerpc platforms.
- miscellaneous binding changes
One note on the above. The binding changes going in from all kinds of
different trees has gotten rather out of hand. I picked up some
during this cycle, but even going though my tree isn't a great fit.
Ian Campbell has prototyped splitting the bindings and .dtb files into
a separate repository. The plan is to migrate to using that sometime
in the next few kernel releases which should get rid of a lot of the
churn on binding docs and .dts files"
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
of: Fix address decoding on Bimini and js2x machines
of: remove CONFIG_OF_DEVICE
usb: chipidea: depend on CONFIG_OF instead of CONFIG_OF_DEVICE
of: remove of_platform_driver
ibmebus: convert of_platform_driver to platform_driver
driver core: move to_platform_driver to platform_device.h
mfd: DT bindings for the palmas family MFD
ARM: dts: omap3-devkit8000: fix NAND memory binding
of/base: fix typos
of: remove #ifdef from linux/of_platform.h
Pull trivial tree updates from Jiri Kosina:
"The usual stuff from trivial tree"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits)
treewide: relase -> release
Documentation/cgroups/memory.txt: fix stat file documentation
sysctl/net.txt: delete reference to obsolete 2.4.x kernel
spinlock_api_smp.h: fix preprocessor comments
treewide: Fix typo in printk
doc: device tree: clarify stuff in usage-model.txt.
open firmware: "/aliasas" -> "/aliases"
md: bcache: Fixed a typo with the word 'arithmetic'
irq/generic-chip: fix a few kernel-doc entries
frv: Convert use of typedef ctl_table to struct ctl_table
sgi: xpc: Convert use of typedef ctl_table to struct ctl_table
doc: clk: Fix incorrect wording
Documentation/arm/IXP4xx fix a typo
Documentation/networking/ieee802154 fix a typo
Documentation/DocBook/media/v4l fix a typo
Documentation/video4linux/si476x.txt fix a typo
Documentation/virtual/kvm/api.txt fix a typo
Documentation/early-userspace/README fix a typo
Documentation/video4linux/soc-camera.txt fix a typo
lguest: fix CONFIG_PAE -> CONFIG_x86_PAE in comment
...
Commit:
e38c0a1fbc
of/address: Handle #address-cells > 2 specially
broke real time clock access on Bimini, js2x, and similar powerpc
machines using the "maple" platform. That code was indirectly relying
on the old (broken) behaviour of the translation for the hypertransport
to ISA bridge.
This fixes it by treating hypertransport as a PCI bus
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
OMAP: PM: remove requirement for voltage domain data; remove dummy data
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Merge tag 'omap-for-v3.11/pm-voltdomain-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
From Tony Lindgren:
PM voltage domain clean-up via Kevin Hilman <khilman@linaro.org>:
OMAP: PM: remove requirement for voltage domain data; remove dummy data
* tag 'omap-for-v3.11/pm-voltdomain-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: AM33xx: Remove the unused voltagedomain data
ARM: OMAP2+: Powerdomain: Remove the need to always have a voltdm associated to a pwrdm
Includes an update to Linux 3.10-rc6.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Conflicts:
drivers/net/wireless/ath/ath9k/Kconfig
drivers/net/xen-netback/netback.c
net/batman-adv/bat_iv_ogm.c
net/wireless/nl80211.c
The ath9k Kconfig conflict was a change of a Kconfig option name right
next to the deletion of another option.
The xen-netback conflict was overlapping changes involving the
handling of the notify list in xen_netbk_rx_action().
Batman conflict resolution provided by Antonio Quartulli, basically
keep everything in both conflict hunks.
The nl80211 conflict is a little more involved. In 'net' we added a
dynamic memory allocation to nl80211_dump_wiphy() to fix a race that
Linus reported. Meanwhile in 'net-next' the handlers were converted
to use pre and post doit handlers which use a flag to determine
whether to hold the RTNL mutex around the operation.
However, the dump handlers to not use this logic. Instead they have
to explicitly do the locking. There were apparent bugs in the
conversion of nl80211_dump_wiphy() in that we were not dropping the
RTNL mutex in all the return paths, and it seems we very much should
be doing so. So I fixed that whilst handling the overlapping changes.
To simplify the initial returns, I take the RTNL mutex after we try
to allocate 'tb'.
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix "/aliasas" typo in comments, no functional change.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The OF code uses irqsafe locks everywhere except in a handful of functions
for no obvious reasons. Since the conversion from the old rwlocks, this
now triggers lockdep warnings when used at interrupt time. At least one
driver (ibmvscsi) seems to be doing that from softirq context.
This converts the few non-irqsafe locks into irqsafe ones, making them
consistent with the rest of the code.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
CONFIG_OF_DEVICE is always selected when CONFIG_OF is enabled, so remove
it and simplify of_platform.h and of_device.h headers. This also fixes
!OF compiles using of_platform_populate.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
the function of_property_read_u8/16/32_array() has a parameter
out_values, but the description mentioned it as out_value. This
patch fixes this typo.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
- parse DT ranges property
- add of_pci_get_devfn()
- add of_pci_parse_bus_range()
Note:
- mvebu/pcie will depend on this branch
- work by LinusW and possibly Arnd will depend on this branch
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Merge tag 'of_pci-3.11' of git://git.infradead.org/users/jcooper/linux into next/cleanup
From Jason Cooper, of/pci changes for v3.11.
The patches had Reviewed-by: from Rob Herring on the lists, but seems to
have been missed from the commit messages. These will be required as a base
for some of the other functionality in this merge window, so taking it through
arm-soc.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'of_pci-3.11' of git://git.infradead.org/users/jcooper/linux:
of/pci: Add of_pci_parse_bus_range() function
of/pci: Add of_pci_get_devfn() function
of/pci: Provide support for parsing PCI DT ranges property
The PHY library currently does not know about the the reverse MII
connection type. Add it to the list of supported PHY modes and update
of_get_phy_mode() to support it and look for the string "rev-mii".
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This function can be used to parse a bus-range property as specified by
device nodes representing PCI bridges.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This function can be used to parse the device and function number from a
standard 5-cell PCI resource. PCI_SLOT() and PCI_FUNC() can be used on
the returned value obtain the device and function numbers respectively.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This patch factors out common implementation patterns to reduce overall kernel
code and provide a means for host bridge drivers to directly obtain struct
resources from the DT's ranges property without relying on architecture specific
DT handling. This will make it easier to write archiecture independent host bridge
drivers and mitigate against further duplication of DT parsing code.
This patch can be used in the following way:
struct of_pci_range_parser parser;
struct of_pci_range range;
if (of_pci_range_parser_init(&parser, np))
; //no ranges property
for_each_of_pci_range(&parser, &range) {
/*
directly access properties of the address range, e.g.:
range.pci_space, range.pci_addr, range.cpu_addr,
range.size, range.flags
alternatively obtain a struct resource, e.g.:
struct resource res;
of_pci_range_to_resource(&range, np, &res);
*/
}
Additionally the implementation takes care of adjacent ranges and merges them
into a single range (as was the case with powerpc and microblaze).
Signed-off-by: Andrew Murray <Andrew.Murray@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Nothing earth shattering here. A build failure fix, and fix for
releasing nodes and some documenation updates.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Pull device tree fixes from Grant Likely:
"Device tree bug fixes and documentation updates for v3.10
Nothing earth shattering here. A build failure fix, and fix for
releasing nodes and some documenation updates."
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
Documentation/devicetree: make semantic of initrd-end more explicit
of/base: release the node correctly in of_parse_phandle_with_args()
of/documentation: move video device bindings to a common place
<linux/of_platform.h>: fix compilation warnings with DT disabled
of_mdiobus_register creates a phy_device even if get_phy_device failed
to create it previously. This causes indefinite polling on non-existent
PHYs. This fix makes of_mdio_register rely on get_phy_device to
properly create the device or fail otherwise.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is a rather large set of patches for device drivers that for one
reason or another the subsystem maintainer preferred to get merged
through the arm-soc tree. There are both new drivers as well as
existing drivers that are getting converted from platform-specific
code into standalone drivers using the appropriate subsystem
specific interfaces.
In particular, we can now have pinctrl, clk, clksource and irqchip
drivers in one file per driver, without the need to call into
platform specific interface, or to get called from platform specific
code, as long as all information about the hardware is provided
through a device tree.
Most of the drivers we touch this time are for clocksource. Since
now most of them are part of drivers/clocksource, I expect that we
won't have to touch these again from arm-soc and can let the
clocksource maintainers take care of these in the future.
Another larger part of this series is specific to the exynos platform,
which is seeing some significant effort in upstreaming and
modernization of its device drivers this time around, which
unfortunately is also the cause for the churn and a lot of the
merge conflicts.
There is one new subsystem that gets merged as part of this series:
the reset controller interface, which is a very simple interface
for taking devices on the SoC out of reset or back into reset.
Patches to use this interface on i.MX follow later in this merge
window, and we are going to have other platforms (at least tegra
and sirf) get converted in 3.11. This will let us get rid of
platform specific callbacks in a number of platform independent
device drivers.
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Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver changes from Olof Johansson:
"This is a rather large set of patches for device drivers that for one
reason or another the subsystem maintainer preferred to get merged
through the arm-soc tree. There are both new drivers as well as
existing drivers that are getting converted from platform-specific
code into standalone drivers using the appropriate subsystem specific
interfaces.
In particular, we can now have pinctrl, clk, clksource and irqchip
drivers in one file per driver, without the need to call into platform
specific interface, or to get called from platform specific code, as
long as all information about the hardware is provided through a
device tree.
Most of the drivers we touch this time are for clocksource. Since now
most of them are part of drivers/clocksource, I expect that we won't
have to touch these again from arm-soc and can let the clocksource
maintainers take care of these in the future.
Another larger part of this series is specific to the exynos platform,
which is seeing some significant effort in upstreaming and
modernization of its device drivers this time around, which
unfortunately is also the cause for the churn and a lot of the merge
conflicts.
There is one new subsystem that gets merged as part of this series:
the reset controller interface, which is a very simple interface for
taking devices on the SoC out of reset or back into reset. Patches to
use this interface on i.MX follow later in this merge window, and we
are going to have other platforms (at least tegra and sirf) get
converted in 3.11. This will let us get rid of platform specific
callbacks in a number of platform independent device drivers."
* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (256 commits)
irqchip: s3c24xx: add missing __init annotations
ARM: dts: Disable the RTC by default on exynos5
clk: exynos5250: Fix parent clock for sclk_mmc{0,1,2,3}
ARM: exynos: restore mach/regs-clock.h for exynos5
clocksource: exynos_mct: fix build error on non-DT
pinctrl: vt8500: wmt: Fix checking return value of pinctrl_register()
irqchip: vt8500: Convert arch-vt8500 to new irqchip infrastructure
reset: NULL deref on allocation failure
reset: Add reset controller API
dt: describe base reset signal binding
ARM: EXYNOS: Add arm-pmu DT binding for exynos421x
ARM: EXYNOS: Add arm-pmu DT binding for exynos5250
ARM: EXYNOS: Enable PMUs for exynos4
irqchip: exynos-combiner: Correct combined IRQs for exynos4
irqchip: exynos-combiner: Add set_irq_affinity function for combiner_irq
ARM: EXYNOS: fix compilation error introduced due to common clock migration
clk: exynos5250: Fix divider values for sclk_mmc{0,1,2,3}
clk: exynos4: export clocks required for fimc-is
clk: samsung: Fix compilation error
clk: tegra: fix enum tegra114_clk to match binding
...
Pull VFS updates from Al Viro,
Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).
7kloc removed.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
don't bother with deferred freeing of fdtables
proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
proc: Make the PROC_I() and PDE() macros internal to procfs
proc: Supply a function to remove a proc entry by PDE
take cgroup_open() and cpuset_open() to fs/proc/base.c
ppc: Clean up scanlog
ppc: Clean up rtas_flash driver somewhat
hostap: proc: Use remove_proc_subtree()
drm: proc: Use remove_proc_subtree()
drm: proc: Use minor->index to label things, not PDE->name
drm: Constify drm_proc_list[]
zoran: Don't print proc_dir_entry data in debug
reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
proc: Supply an accessor for getting the data from a PDE's parent
airo: Use remove_proc_subtree()
rtl8192u: Don't need to save device proc dir PDE
rtl8187se: Use a dir under /proc/net/r8180/
proc: Add proc_mkdir_data()
proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
proc: Move PDE_NET() to fs/proc/proc_net.c
...
Pull networking updates from David Miller:
"Highlights (1721 non-merge commits, this has to be a record of some
sort):
1) Add 'random' mode to team driver, from Jiri Pirko and Eric
Dumazet.
2) Make it so that any driver that supports configuration of multiple
MAC addresses can provide the forwarding database add and del
calls by providing a default implementation and hooking that up if
the driver doesn't have an explicit set of handlers. From Vlad
Yasevich.
3) Support GSO segmentation over tunnels and other encapsulating
devices such as VXLAN, from Pravin B Shelar.
4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton.
5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita
Dukkipati.
6) In the PHY layer, allow supporting wake-on-lan in situations where
the PHY registers have to be written for it to be configured.
Use it to support wake-on-lan in mv643xx_eth.
From Michael Stapelberg.
7) Significantly improve firewire IPV6 support, from YOSHIFUJI
Hideaki.
8) Allow multiple packets to be sent in a single transmission using
network coding in batman-adv, from Martin Hundebøll.
9) Add support for T5 cxgb4 chips, from Santosh Rastapur.
10) Generalize the VXLAN forwarding tables so that there is more
flexibility in configurating various aspects of the endpoints.
From David Stevens.
11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver,
from Dmitry Kravkov.
12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo
Neira Ayuso.
13) Start adding networking selftests.
14) In situations of overload on the same AF_PACKET fanout socket, or
per-cpu packet receive queue, minimize drop by distributing the
load to other cpus/fanouts. From Willem de Bruijn and Eric
Dumazet.
15) Add support for new payload offset BPF instruction, from Daniel
Borkmann.
16) Convert several drivers over to mdoule_platform_driver(), from
Sachin Kamat.
17) Provide a minimal BPF JIT image disassembler userspace tool, from
Daniel Borkmann.
18) Rewrite F-RTO implementation in TCP to match the final
specification of it in RFC4138 and RFC5682. From Yuchung Cheng.
19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear
you like netlink, so I implemented netlink dumping of netlink
sockets.") From Andrey Vagin.
20) Remove ugly passing of rtnetlink attributes into rtnl_doit
functions, from Thomas Graf.
21) Allow userspace to be able to see if a configuration change occurs
in the middle of an address or device list dump, from Nicolas
Dichtel.
22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes
Frederic Sowa.
23) Increase accuracy of packet length used by packet scheduler, from
Jason Wang.
24) Beginning set of changes to make ipv4/ipv6 fragment handling more
scalable and less susceptible to overload and locking contention,
from Jesper Dangaard Brouer.
25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*()
instead. From Hong Zhiguo.
26) Optimize route usage in IPVS by avoiding reference counting where
possible, from Julian Anastasov.
27) Convert IPVS schedulers to RCU, also from Julian Anastasov.
28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger
Eitzenberger.
29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG,
nfnetlink_log, and nfnetlink_queue. From Gao feng.
30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa.
31) Support several new r8169 chips, from Hayes Wang.
32) Support tokenized interface identifiers in ipv6, from Daniel
Borkmann.
33) Use usbnet_link_change() helper in USB net driver, from Ming Lei.
34) Add 802.1ad vlan offload support, from Patrick McHardy.
35) Support mmap() based netlink communication, also from Patrick
McHardy.
36) Support HW timestamping in mlx4 driver, from Amir Vadai.
37) Rationalize AF_PACKET packet timestamping when transmitting, from
Willem de Bruijn and Daniel Borkmann.
38) Bring parity to what's provided by /proc/net/packet socket dumping
and the info provided by netlink socket dumping of AF_PACKET
sockets. From Nicolas Dichtel.
39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin
Poirier"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
filter: fix va_list build error
af_unix: fix a fatal race with bit fields
bnx2x: Prevent memory leak when cnic is absent
bnx2x: correct reading of speed capabilities
net: sctp: attribute printl with __printf for gcc fmt checks
netlink: kconfig: move mmap i/o into netlink kconfig
netpoll: convert mutex into a semaphore
netlink: Fix skb ref counting.
net_sched: act_ipt forward compat with xtables
mlx4_en: fix a build error on 32bit arches
Revert "bnx2x: allow nvram test to run when device is down"
bridge: avoid OOPS if root port not found
drivers: net: cpsw: fix kernel warn on cpsw irq enable
sh_eth: use random MAC address if no valid one supplied
3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA)
tg3: fix to append hardware time stamping flags
unix/stream: fix peeking with an offset larger than data in queue
unix/dgram: fix peeking with an offset larger than data in queue
unix/dgram: peek beyond 0-sized skbs
openvswitch: Remove unneeded ovs_netdev_get_ifindex()
...
Currently modular V4L2 build with enabled OF is broken dur to the
of_get_next_parent() function being unavailable to modules. Export it to
fix the build.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Call of_node_put() only when the out_args is NULL on success,
or the node's reference count will not be correct because the caller
will call of_node_put() again.
Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
[grant.likely: tightened up the patch]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Using DT for mdiobus and ethernet-phy requires to know the PHY address, which
is hard to guess if you don't know it. This patch extends of_mdiobus_register
to scan mdiobus for PHYs if reg property of the corresponding node is not set.
This also allows to have phy nodes in SoC DT files where the reg property can
be overwritten in the board file later. To encourage people to finally set the
actual phy address, the mdiobus scan is noisier than required.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Several functions in of/base.c have the same code duplicated for
finding and validating a property and value.
struct property *prop = of_find_property(np, propname, NULL);
if (!prop)
return -EINVAL;
if (!prop->value)
return -ENODATA;
if (<some length> > prop->length)
return -EOVERFLOW;
This patch adds of_find_property_value_of_size() which performs the
equivalent of the above code and removes the instances where it was
duplicated in several functions.
Reported-by: Rob Herring <robherring2@gmail.com>
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
This patch adds an of_property_read_u32_index() function to allow
reading a single indexed u32 value from a property containing multiple
u32 values.
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robherring2@gmail.com>
Pull trivial tree from Jiri Kosina:
"Assorted tiny fixes queued in trivial tree"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (22 commits)
DocBook: update EXPORT_SYMBOL entry to point at export.h
Documentation: update top level 00-INDEX file with new additions
ARM: at91/ide: remove unsused at91-ide Kconfig entry
percpu_counter.h: comment code for better readability
x86, efi: fix comment typo in head_32.S
IB: cxgb3: delay freeing mem untill entirely done with it
net: mvneta: remove unneeded version.h include
time: x86: report_lost_ticks doesn't exist any more
pcmcia: avoid static analysis complaint about use-after-free
fs/jfs: Fix typo in comment : 'how may' -> 'how many'
of: add missing documentation for of_platform_populate()
btrfs: remove unnecessary cur_trans set before goto loop in join_transaction
sound: soc: Fix typo in sound/codecs
treewide: Fix typo in various drivers
btrfs: fix comment typos
Update ibmvscsi module name in Kconfig.
powerpc: fix typo (utilties -> utilities)
of: fix spelling mistake in comment
h8300: Fix home page URL in h8300/README
xtensa: Fix home page URL in Kconfig
...
Pull networking update from David Miller:
1) Checkpoint/restarted TCP sockets now can properly propagate the TCP
timestamp offset. From Andrey Vagin.
2) VMWARE VM VSOCK layer, from Andy King.
3) Much improved support for virtual functions and SR-IOV in bnx2x,
from Ariel ELior.
4) All protocols on ipv4 and ipv6 are now network namespace aware, and
all the compatability checks for initial-namespace-only protocols is
removed. Thanks to Tom Parkin for helping deal with the last major
holdout, L2TP.
5) IPV6 support in netpoll and network namespace support in pktgen,
from Cong Wang.
6) Multiple Registration Protocol (MRP) and Multiple VLAN Registration
Protocol (MVRP) support, from David Ward.
7) Compute packet lengths more accurately in the packet scheduler, from
Eric Dumazet.
8) Use per-task page fragment allocator in skb_append_datato_frags(),
also from Eric Dumazet.
9) Add support for connection tracking labels in netfilter, from
Florian Westphal.
10) Fix default multicast group joining on ipv6, and add anti-spoofing
checks to 6to4 and 6rd. From Hannes Frederic Sowa.
11) Make ipv4/ipv6 fragmentation memory limits more reasonable in modern
times, rearrange inet frag datastructures for better cacheline
locality, and move more operations outside of locking. From Jesper
Dangaard Brouer.
12) Instead of strict master <--> slave relationships, allow arbitrary
scenerios with "upper device lists". From Jiri Pirko.
13) Improve rate limiting accuracy in TBF and act_police, also from Jiri
Pirko.
14) Add a BPF filter netfilter match target, from Willem de Bruijn.
15) Orphan and delete a bunch of pre-historic networking drivers from
Paul Gortmaker.
16) Add TSO support for GRE tunnels, from Pravin B SHelar. Although
this still needs some minor bug fixing before it's %100 correct in
all cases.
17) Handle unresolved IPSEC states like ARP, with a resolution packet
queue. From Steffen Klassert.
18) Remove TCP Appropriate Byte Count support (ABC), from Stephen
Hemminger. This was long overdue.
19) Support SO_REUSEPORT, from Tom Herbert.
20) Allow locking a socket BPF filter, so that it cannot change after a
process drops capabilities.
21) Add VLAN filtering to bridge, from Vlad Yasevich.
22) Bring ipv6 on-par with ipv4 and do not cache neighbour entries in
the ipv6 routes, from YOSHIFUJI Hideaki.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1538 commits)
ipv6: fix race condition regarding dst->expires and dst->from.
net: fix a wrong assignment in skb_split()
ip_gre: remove an extra dst_release()
ppp: set qdisc_tx_busylock to avoid LOCKDEP splat
atl1c: restore buffer state
net: fix a build failure when !CONFIG_PROC_FS
net: ipv4: fix waring -Wunused-variable
net: proc: fix build failed when procfs is not configured
Revert "xen: netback: remove redundant xenvif_put"
net: move procfs code to net/core/net-procfs.c
qmi_wwan, cdc-ether: add ADU960S
bonding: set sysfs device_type to 'bond'
bonding: fix bond_release_all inconsistencies
b44: use netdev_alloc_skb_ip_align()
xen: netback: remove redundant xenvif_put
net: fec: Do a sanity check on the gpio number
ip_gre: propogate target device GSO capability to the tunnel device
ip_gre: allow CSUM capable devices to handle packets
bonding: Fix initialize after use for 3ad machine state spinlock
bonding: Fix race condition between bond_enslave() and bond_3ad_update_lacp_rate()
...
This reverts commit aac73f3454. That
commit causes two kinds of breakage; it breaks registration of AMBA
devices when one of the parent nodes already contains overlapping
resource regions, and it breaks calls to request_region() by device
drivers in certain conditions where there are overlapping memory
regions. Both of these problems can probably be fixed, but it is better
to back out the commit and get a proper fix designed before trying again.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This patch creates of_count_phandle_with_args(), a new function for
counting the number of phandle+argument tuples in a given property. This
is better than the existing method of parsing each phandle individually
until parsing fails which is a horribly slow way to do the count.
Tested on ARM using the selftest code.
v3: - Rebased on top of selftest code cleanup patch
v2: - fix bug where of_parse_phandle_with_args() could behave like _count_.
- made of_gpio_named_count() into a static inline regardless of CONFIG_OF_GPIO
Tested-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Some of the exit paths were not correctly releasing the node. Fix it by
creating an 'err' label for collecting the error paths and releasing the
node.
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Some of the selftests are open-coded. Others use the selftest() macro
defined in drivers/of/selftest.c. The macro makes for cleaner selftest
code, so refactor the of_parse_phandle_with_args() tests to use it.
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
The of_gpio_named_count() self test doesn't hit the out-of-range
condition even though it is coded. Fix the bug by increasing the for
loop range by one.
Reported-by: Andreas Larsson <andreas@gaisler.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
of_get_next_available_child() acquires devtree_lock, then calls
of_device_is_available() which calls of_get_property() which calls
of_find_property() which tries to re-acquire devtree_lock, thus causing
deadlock.
To avoid this, create a new __of_device_is_available() which calls
__of_get_property() instead, which calls __of_find_property(), which
does not take the lock,. Update of_get_next_available_child() to call
the new __of_device_is_available() since it already owns the lock.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
With the locking cleanup in place (from "OF: Fixup resursive
locking code paths"), we can now do the conversion from the
rw_lock to a raw spinlock as required for preempt-rt.
The previous cleanup and this conversion were originally
separate since they predated when mainline got raw spinlock (in
commit c2f21ce2e3 "locking: Implement new raw_spinlock").
So, at that point in time, the cleanup was considered plausible
for mainline, but not this conversion. In any case, we've kept
them separate as it makes for easier review and better bisection.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[PG: taken from preempt-rt, update subject & add a commit log]
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
This allows platform_device_add a chance to call insert_resource on all
of the resources from OF. At a minimum this fills in proc/iomem and
presumably makes resource tracking and conflict detection work better.
However, it has the side effect of moving all OF generated platform
devices from /sys/devices to /sys/devices/platform/. It /shouldn't/
break userspace because userspace is not supposed to depend on the full
path (because userspace always does what it is supposed to, right?).
This may cause breakage if either:
1) any two nodes in a given device tree have overlapping & staggered
regions (ie. 0x80..0xbf and 0xa0..0xdf; where one is not contained
within the other). In this case one of the devices will fail to
register and an exception will be needed in platform_device_add() to
complain but not fail.
2) any device calls request_mem_region() on a region larger than
specified in the device tree. In this case the device node may be
wrong, or the driver is overreaching. In either case I'd like to know
about any problems and fix them.
Please test. Despite the above, I'm still fairly confident that this
patch is in good shape. I'd like to put it into linux-next, but would
appreciate some bench testing from others before I do; particularly on
PowerPC machines.
v2: Remove powerpc special-case
Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
In some situations, userspace may want to resolve a
device by function and logical number (ie, "serial0")
rather than by the base address or full device path. Being
able to resolve a device by alias frees userspace from the
burden of otherwise having to maintain a mapping between
device addresses and their logical assignments on each
platform when multiple instances of the same hardware block
are present in the system.
Although the uevent device attribute contains devicetree
compatible information and the full device path, the uevent
does not list the alises that may have been defined for the
device.
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
[grant.likely: Removed OF_ALIAS_N field; I don't think it's needed]
[grant.likely: Added #ifndef _LINUX_OF_PRIVATE_H wrapper]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
There is no real reason to use a rwlock for devtree_lock. It even
could be a mutex, but unfortunately it's locked from cpu hotplug
paths which can't schedule :(
So it needs to become a raw lock on rt as well. The devtree_lock would
be the only user of a raw_rw_lock, so we are better off cleaning up the
recursive locking paths which allows us to convert devtree_lock to a
read_lock.
Here we do the standard thing of introducing __foo() as the "raw"
version of foo(), so that we can take better control of the locking.
The "raw" versions are not exported and are for internal use within
the file itself.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
The of_find_matching_node_and_match() function incorrectly sets the matched
entry to 'matches' when the compatible value of a node matches one of the
possible values. This results in incorrectly selecting the the first entry in
the 'matches' list as the matched entry. Fix this by noting down the result of
the call to of_match_node() and setting that as the matched entry.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
The flags argument of the phy_{attach,connect,connect_direct} functions
is then used to assign a struct phy_device dev_flags with its value.
All callers but the tg3 driver pass the flag 0, which results in the
underlying PHY drivers in drivers/net/phy/ not being able to actually
use any of the flags they would set in dev_flags. This patch gets rid of
the flags argument, and passes phydev->dev_flags to the internal PHY
library call phy_attach_direct() such that drivers which actually modify
a phy device dev_flags get the value preserved for use by the underlying
phy driver.
Acked-by: Kosta Zertsekel <konszert@marvell.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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 <grant.likely@secretlab.ca>
Cc: Jiri Kosina <trivial@kernel.org>
Signed-off-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Commit 50c8af4cf9, "of: introduce for_each_matching_node_and_match()"
renamed of_find_matching_node() to of_find_matching_node_and_match() and
created a new static inline of_find_matching_node() wrapper around the
new name. However, the change neglected to change the EXPORT_SYMBOL()
reference causing build errors for modules.
This patch fixes the EXPORT_SYMBOL() statement. Discovered on a PowerPC
Efika build with the mpc52xx_uart driver being built as a module.
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Pull powerpc update from Benjamin Herrenschmidt:
"The main highlight is probably some base POWER8 support. There's more
to come such as transactional memory support but that will wait for
the next one.
Overall it's pretty quiet, or rather I've been pretty poor at picking
things up from patchwork and reviewing them this time around and Kumar
no better on the FSL side it seems..."
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (73 commits)
powerpc+of: Rename and fix OF reconfig notifier error inject module
powerpc: mpc5200: Add a3m071 board support
powerpc/512x: don't compile any platform DIU code if the DIU is not enabled
powerpc/mpc52xx: use module_platform_driver macro
powerpc+of: Export of_reconfig_notifier_[register,unregister]
powerpc/dma/raidengine: add raidengine device
powerpc/iommu/fsl: Add PAMU bypass enable register to ccsr_guts struct
powerpc/mpc85xx: Change spin table to cached memory
powerpc/fsl-pci: Add PCI controller ATMU PM support
powerpc/86xx: fsl_pcibios_fixup_bus requires CONFIG_PCI
drivers/virt: the Freescale hypervisor driver doesn't need to check MSR[GS]
powerpc/85xx: p1022ds: Use NULL instead of 0 for pointers
powerpc: Disable relocation on exceptions when kexecing
powerpc: Enable relocation on during exceptions at boot
powerpc: Move get_longbusy_msecs into hvcall.h and remove duplicate function
powerpc: Add wrappers to enable/disable relocation on exceptions
powerpc: Add set_mode hcall
powerpc: Setup relocation on exceptions for bare metal systems
powerpc: Move initial mfspr LPCR out of __init_LPCR
powerpc: Add relocation on exception vector handlers
...
constification of node argument to of_parse_phandle_with_args().
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6
Pull another devicetree update from Grant Likely:
"Here's a couple more devicetree changes that I missed in the first
pull by putting the tag in the wrong place.
Two minor devicetree fixups for v3.8. Addition of dummy inlines and
constification of node argument to of_parse_phandle_with_args()."
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
of: *node argument to of_parse_phandle_with_args should be const
of/i2c: add dummy inline functions for when CONFIG_OF_I2C(_MODULE) isn't defined
Pull tiny sparc update from David Miller:
"Not much going on this release cycle in sparc land, just a Kconfig
tweak."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next:
of_i2c: sparc: Allow OF_I2C for sparc
The "struct device_node *" argument of of_parse_phandle_with_args() can
be const. Making this change makes it explicit that the function will
not modify a node.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
[grant.likely: Resolved conflict with previous patch modifying of_parse_phandle()]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
ERROR: "allnodes" [drivers/w1/masters/w1-gpio.ko] undefined!
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
[grant.likely: allnodes is too generic; rename to of_allnodes]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Ville Syrjala <syrjala@sci.fi>
Currently of_mdiobus_register() function registers all PHY devices,
independetly from their status property in device tree. According to
"ePAPR 1.1" spec, device should only be registered if there is no
"status" property, or it has "ok" (or "okay") value (see
of_device_is_available()). In case of "platform devices",
of_platform_device_create_pdata() checks for "status" and ensures
that disabled devices are not pupulated. But such check for MDIO buses
was missing until now. Fix it.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@sysgo.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Currently of_i2c_register_devices() function registers all i2c devices,
independently from their status property in device tree. According to
"ePAPR 1.1" spec, device should only be registered if there is no
"status" property, or it has "ok" (or "okay") value (see
of_device_is_available()). In case of "platform devices",
of_platform_device_create_pdata() checks for "status" and ensures
that disabled devices are not populated. But such check for i2c buses
was missing until now. Fix it.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@sysgo.com>
Acked-by: Rob Herring <robherring2@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Reviewed-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
The existing function does not change the passed device_node pointer. It is
only handed to of_get_property which itself takes a const struct device_node.
of_parse_phandle() can therefore take a const pointer as well.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
[grant.likely: drop extraneous whitespace change]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
The of reconfiguration notification chains should be exported for use
by modules.
Signed-off-by:Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Merge my own merge branch to get various fixes from there
and upstream, especially the hvc console tty refcouting fixes
which which testing is quite a bit harder...
The following pattern of code is tempting:
for_each_matching_node(np, table) {
match = of_match_node(table, np);
However, this results in iterating over table twice; the second time
inside of_match_node(). The implementation of for_each_matching_node()
already found the match, so this is redundant. Invent new function
of_find_matching_node_and_match() and macro
for_each_matching_node_and_match() to remove the double iteration,
thus transforming the above code to:
for_each_matching_node_and_match(np, table, &match)
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Commit 509b7455 (of/fdt: Don't copy garbage after "/" in root node path)
sets the path length to 0 to ignore any garbage after "/" in the root
node path. This has the side effect of also ignoring '\0' at the end of
the root node path. This patch sets the ignores the garbage by setting
the last character to '\0' and length to 1.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Constify 'pathp' in order to get rid of the following warning:
drivers/of/fdt.c:491:10: warning: assignment discards 'const' qualifier from pointer target type [enabled by default]
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
[Rob Herring: also constify np and lp]
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Neither of these should ever be changed once set. Make them const and
fix up the users that try to modify it in-place. In one case
kmalloc+memcpy is replaced with kstrdup() to avoid modifying the string.
Build tested with defconfigs on ARM, PowerPC, Sparc, MIPS, x86 among
others.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Julian Calaby <julian.calaby@gmail.com>
Rename the prom_*_property routines of the generic OF code to of_*_property.
This brings them in line with the naming used by the rest of the OF code.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Acked-by: Geoff Levand <geoff@infradead.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This patch moves the notification chain for updates to the device tree
from the powerpc/pseries code to the base OF code. This makes this
functionality available to all architectures.
Additionally the notification chain is updated to allow notifications
for property add/remove/update. To make this work a pointer to a new
struct (of_prop_reconfig) is passed to the routines in the notification chain.
The of_prop_reconfig property contains a pointer to the node containing the
property and a pointer to the property itself. In the case of property
updates, the property pointer refers to the new property.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
When adding or removing a device tree node we should also update
the device tree in /proc/device-tree. This action is already done in the
generic OF code for adding/removing properties of a node. This patch adds
this functionality for nodes.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The root node path must be internally converted to "/", or various
pieces of code looking for it that way will fail. The code to do
that however had a bug where we might incorrectly append pieces
of the original path from the fdt to the "/".
We should probably add a proper dedicated accessor for the root node
but in the meantime this patch should fix it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types)
drivers/of/address.c:66:29: expected restricted __be32 const [usertype] *cell
drivers/of/address.c:66:29: got unsigned int [usertype] *addr
drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types)
drivers/of/address.c:87:32: expected restricted __be32 const [usertype] *cell
drivers/of/address.c:87:32: got unsigned int [usertype] *addr
drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types)
drivers/of/address.c:91:30: expected unsigned int [unsigned] [usertype] <noident>
drivers/of/address.c:91:30: got restricted __be32 [usertype] <noident>
drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types)
drivers/of/address.c:92:22: expected unsigned int [unsigned] [usertype] <noident>
drivers/of/address.c:92:22: got restricted __be32 [usertype] <noident>
drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types)
drivers/of/address.c:147:35: expected restricted __be32 const [usertype] *addr
drivers/of/address.c:147:35: got unsigned int [usertype] *addr
drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types)
drivers/of/address.c:157:34: expected restricted __be32 const [usertype] *cell
drivers/of/address.c:157:34: got unsigned int [usertype] *
drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer
drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer
drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types)
drivers/of/address.c:262:34: expected restricted __be32 const [usertype] *cell
drivers/of/address.c:262:34: got unsigned int [usertype] *
drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types)
drivers/of/address.c:372:41: expected restricted __be32 const [usertype] *cell
drivers/of/address.c:372:41: got unsigned int [usertype] *addr
drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types)
drivers/of/address.c:395:53: expected restricted __be32 const [usertype] *addr
drivers/of/address.c:395:53: got unsigned int [usertype] *addr
drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types)
drivers/of/address.c:443:50: expected restricted __be32 const [usertype] *addr
drivers/of/address.c:443:50: got unsigned int *<noident>
drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types)
drivers/of/address.c:455:49: expected restricted __be32 const [usertype] *cell
drivers/of/address.c:455:49: got unsigned int *<noident>
drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types)
drivers/of/address.c:480:60: expected restricted __be32 const [usertype] *addr
drivers/of/address.c:480:60: got unsigned int *<noident>
drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static?
drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
- Import of latest upstream device tree compiler (dtc)
- New function of_get_child_by_name
- Support for #size-cells of 0 and #addr-cells of >2
- Couple of DT binding documentation updates
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Merge tag 'dt-for-3.7' of git://sources.calxeda.com/kernel/linux
Pull devicetree updates from Rob Herring:
- Import of latest upstream device tree compiler (dtc)
- New function of_get_child_by_name
- Support for #size-cells of 0 and #addr-cells of >2
- Couple of DT binding documentation updates
Fix up trivial conflicts due to of_get_child_by_name() having been added
next to the new of_get_next_available_child().
* tag 'dt-for-3.7' of git://sources.calxeda.com/kernel/linux:
MAINTAINERS: add scripts/dtc under Devicetree maintainers
dtc: import latest upstream dtc
dt: Document general interrupt controller bindings
dt/s3c64xx/spi: Use of_get_child_by_name to get a named child
dt: introduce of_get_child_by_name to get child node by name
of: i2c: add support for wakeup-source property
of/address: Handle #address-cells > 2 specially
DT: export of_irq_to_resource_table()
devicetree: serial: Add documentation for imx serial
devicetree: pwm: mxs-pwm.txt: Fix reg field annotation
of: Allow busses with #size-cells=0
This patch introduces of_get_child_by_name function to get a child node
by its name in a given parent node.
Without this patch each driver code has to iterate the parent and do
a string compare, However having of_get_child_by_name libary function would
avoid code duplication, errors and is more convenient.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Add support for specifying a generic "wakeup-source" property on i2c
clients, which will set the I2C_CLIENT_WAKE flag, thus configuring the
device to wake the system from suspend (via IRQ).
This obviously doesn't make sense on devices lacking IRQ, but since we
still allow that in the i2c_board_info case, I don't see a reason to
restrict it here.
Note: Since the generic i2c bindings aren't documented in the kernel,
I didn't find a good place to add documentation for this binding
extension. I still think it makes sense to have a generic property
instead of having each device do its own binding for the same.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
When a bus specifies #address-cells > 2, of_bus_default_map() now
assumes that the mapping isn't for a physical address but rather an
identifier that needs to match exactly.
This is required by bindings that use multiple cells to translate a
resource to the parent bus (device index, type, ...).
See here for the discussion:
https://lists.ozlabs.org/pipermail/devicetree-discuss/2012-June/016577.html
Originally-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Trivial patch that exports the of_irq_to_resource_table() symbol so that
modules can use it.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Macro for_each_child_of_node() makes it easy to iterate over all of the
children for a given device tree node, including those nodes that are
marked as unavailable (i.e. status = "disabled").
Introduce for_each_available_child_of_node(), which is like
for_each_child_of_node(), but it automatically skips unavailable nodes.
This also requires the introduction of helper function
of_get_next_available_child(), which returns the next available child
node.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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 <swarren@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
A small set of changes for devicetree:
- Couple of Documentation fixes
- Addition of new helper function of_node_full_name
- Improve of_parse_phandle_with_args return values
- Some NULL related sparse fixes
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Merge tag 'dt-for-3.6' of git://sources.calxeda.com/kernel/linux
Pull devicetree updates from Rob Herring:
"A small set of changes for devicetree:
- Couple of Documentation fixes
- Addition of new helper function of_node_full_name
- Improve of_parse_phandle_with_args return values
- Some NULL related sparse fixes"
Grant's busy packing.
* tag 'dt-for-3.6' of git://sources.calxeda.com/kernel/linux:
of: mtd: nuke useless const qualifier
devicetree: add helper inline for retrieving a node's full name
of: return -ENOENT when no property
usage-model.txt: fix typo machine_init->init_machine
of: Fix null pointer related warnings in base.c file
LED: Fix missing semicolon in OF documentation
of: fix a few typos in the binding documentation
Pull networking changes from David S Miller:
1) Remove the ipv4 routing cache. Now lookups go directly into the FIB
trie and use prebuilt routes cached there.
No more garbage collection, no more rDOS attacks on the routing
cache. Instead we now get predictable and consistent performance,
no matter what the pattern of traffic we service.
This has been almost 2 years in the making. Special thanks to
Julian Anastasov, Eric Dumazet, Steffen Klassert, and others who
have helped along the way.
I'm sure that with a change of this magnitude there will be some
kind of fallout, but such things ought the be simple to fix at this
point. Luckily I'm not European so I'll be around all of August to
fix things :-)
The major stages of this work here are each fronted by a forced
merge commit whose commit message contains a top-level description
of the motivations and implementation issues.
2) Pre-demux of established ipv4 TCP sockets, saves a route demux on
input.
3) TCP SYN/ACK performance tweaks from Eric Dumazet.
4) Add namespace support for netfilter L4 conntrack helpers, from Gao
Feng.
5) Add config mechanism for Energy Efficient Ethernet to ethtool, from
Yuval Mintz.
6) Remove quadratic behavior from /proc/net/unix, from Eric Dumazet.
7) Support for connection tracker helpers in userspace, from Pablo
Neira Ayuso.
8) Allow userspace driven TX load balancing functions in TEAM driver,
from Jiri Pirko.
9) Kill off NLMSG_PUT and RTA_PUT macros, more gross stuff with
embedded gotos.
10) TCP Small Queues, essentially minimize the amount of TCP data queued
up in the packet scheduler layer. Whereas the existing BQL (Byte
Queue Limits) limits the pkt_sched --> netdevice queuing levels,
this controls the TCP --> pkt_sched queueing levels.
From Eric Dumazet.
11) Reduce the number of get_page/put_page ops done on SKB fragments,
from Alexander Duyck.
12) Implement protection against blind resets in TCP (RFC 5961), from
Eric Dumazet.
13) Support the client side of TCP Fast Open, basically the ability to
send data in the SYN exchange, from Yuchung Cheng.
Basically, the sender queues up data with a sendmsg() call using
MSG_FASTOPEN, then they do the connect() which emits the queued up
fastopen data.
14) Avoid all the problems we get into in TCP when timers or PMTU events
hit a locked socket. The TCP Small Queues changes added a
tcp_release_cb() that allows us to queue work up to the
release_sock() caller, and that's what we use here too. From Eric
Dumazet.
15) Zero copy on TX support for TUN driver, from Michael S. Tsirkin.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1870 commits)
genetlink: define lockdep_genl_is_held() when CONFIG_LOCKDEP
r8169: revert "add byte queue limit support".
ipv4: Change rt->rt_iif encoding.
net: Make skb->skb_iif always track skb->dev
ipv4: Prepare for change of rt->rt_iif encoding.
ipv4: Remove all RTCF_DIRECTSRC handliing.
ipv4: Really ignore ICMP address requests/replies.
decnet: Don't set RTCF_DIRECTSRC.
net/ipv4/ip_vti.c: Fix __rcu warnings detected by sparse.
ipv4: Remove redundant assignment
rds: set correct msg_namelen
openvswitch: potential NULL deref in sample()
tcp: dont drop MTU reduction indications
bnx2x: Add new 57840 device IDs
tcp: avoid oops in tcp_metrics and reset tcpm_stamp
niu: Change niu_rbr_fill() to use unlikely() to check niu_rbr_add_page() return value
niu: Fix to check for dma mapping errors.
net: Fix references to out-of-scope variables in put_cmsg_compat()
net: ethernet: davinci_emac: add pm_runtime support
net: ethernet: davinci_emac: Remove unnecessary #include
...
Pull powerpc updates from Benjamin Herrenschmidt:
"Notable highlights:
- iommu improvements from Anton removing the per-iommu global lock in
favor of dividing the DMA space into pools, each with its own lock,
and hashed on the CPU number. Along with making the locking more
fine grained, this gives significant improvements in multiqueue
networking scalability.
- Still from Anton, we know provide a vdso based variant of getcpu
which makes sched_getcpu with the appropriate glibc patch something
like 18 times faster.
- More anton goodness (he's been busy !) in other areas such as a
faster __clear_user and copy_page on P7, various perf fixes to
improve sampling quality, etc...
- One more step toward removing legacy i2c interfaces by using new
device-tree based probing of platform devices for the AOA audio
drivers
- A nice series of patches from Michael Neuling that helps avoiding
confusion between register numbers and litterals in assembly code,
trying to enforce the use of "%rN" register names in gas rather
than plain numbers.
- A pile of FSL updates
- The usual bunch of small fixes, cleanups etc...
You may spot a change to drivers/char/mem. The patch got no comment
or ack from outside, it's a trivial patch to allow the architecture to
skip creating /dev/port, which we use to disable it on ppc64 that
don't have a legacy brige. On those, IO ports 0...64K are not mapped
in kernel space at all, so accesses to /dev/port cause oopses (and
yes, distros -still- ship userspace that bangs hard coded ports such
as kbdrate)."
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (106 commits)
powerpc/mpic: Create a revmap with enough entries for IPIs and timers
Remove stale .rej file
powerpc/iommu: Fix iommu pool initialization
powerpc/eeh: Check handle_eeh_events() return value
powerpc/85xx: Add phy nodes in SGMII mode for MPC8536/44/72DS & P2020DS
powerpc/e500: add paravirt QEMU platform
powerpc/mpc85xx_ds: convert to unified PCI init
powerpc/fsl-pci: get PCI init out of board files
powerpc/85xx: Update corenet64_smp_defconfig
powerpc/85xx: Update corenet32_smp_defconfig
powerpc/85xx: Rename P1021RDB-PC device trees to be consistent
powerpc/watchdog: move booke watchdog param related code to setup-common.c
sound/aoa: Adapt to new i2c probing scheme
i2c/powermac: Improve detection of devices from device-tree
powerpc: Disable /dev/port interface on systems without an ISA bridge
of: Improve prom_update_property() function
powerpc: Add "memory" attribute for mfmsr()
powerpc/ftrace: Fix assembly trampoline register usage
powerpc/hw_breakpoints: Fix incorrect pointer access
powerpc: Put the gpr save/restore functions in their own section
...
* multiple omap2+ bug fixes
* a regression on ux500 dt support
* a build failure on shmobile
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
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
prom_update_property() currently fails if the property doesn't
actually exist yet which isn't what we want. Change to add-or-update
instead of update-only, then we can remove a lot duplicated lines.
Suggested-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This reverts commit 107a84e61c.
Meelis Roos reports a regression since 3.5-rc5 that stops Sun Fire V100
and Sun Netra X1 sparc64 machines from booting, hanging after enabling
serial console. He bisected it to commit 107a84e61c.
Rob Herring explains:
"The problem is match combinations of compatible plus name and/or type
fail to match correctly. I have a fix for this, but given how late it
is for 3.5 I think it is best to revert this for now. There could be
other cases that rely on the current although wrong behavior. I will
post an updated version for 3.6."
Bisected-and-reported-by: Meelis Roos <mroos@linux.ee>
Requested-by: Rob Herring <rob.herring@calxeda.com>
Cc: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch does the following:
-const int of_get_nand_ecc_mode(struct device_node *np)
+int of_get_nand_ecc_mode(struct device_node *np)
because:
1. it is probably just a typo?
2. it causes warnings like this when people assing the returned
value to an 'int' variable:
include/linux/of_mtd.h:14:18: warning: type qualifiers ignored on functi=
on return type [-Wignored-qualifiers]
Remove also the unnecessary "extern" qualifier to be consistent with other
declarations in this file.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
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 <rob.herring@calxeda.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The pattern (np ? np->full_name : "<none>") is rather common in the
kernel, but can also make for quite long lines. This patch adds a new
inline function, of_node_full_name() so that the test for a valid node
pointer doesn't need to be open coded at all call sites.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Make of_parse_phandle_with_args return -ENOENT instead of -EINVAL when
no matching property is found, which allows to discriminate between
absence of property and parsing error.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Fixes the following sparse warnings:
drivers/of/base.c:176:41: warning: Using plain integer as NULL pointer
drivers/of/base.c:178:37: warning: Using plain integer as NULL pointer
drivers/of/base.c:500:49: warning: Using plain integer as NULL pointer
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Define two new "compatible" values for Ethernet
PHYs. "ethernet-phy-ieee802.3-c22" and "ethernet-phy-ieee802.3-c45"
are used to indicate a PHY uses the corresponding protocol.
If a PHY is "compatible" with "ethernet-phy-ieee802.3-c45", we
indicate this so that get_phy_device() can properly probe the device.
If get_phy_device() fails, it was probably due to failing the probe of
the PHY identifier registers. Since we have the device tree telling
us the PHY exists, go ahead and add it anyhow with a phy_id of zero.
There may be a driver match based on the "compatible" property.
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The IEEE802.3 clause 45 MDIO bus protocol allows for directly
addressing PHY registers using a 21 bit address, and is used by many
10G Ethernet PHYS. Already existing is the ability of MDIO bus
drivers to use clause 45, with the MII_ADDR_C45 flag. Here we add
struct phy_c45_device_ids to hold the device identifier registers
present in clause 45. struct phy_device gets a couple of new fields:
c45_ids to hold the identifiers and is_c45 to signal that it is clause
45.
get_phy_device() gets a new parameter is_c45 to indicate that the PHY
device should use the clause 45 protocol, and its callers are adjusted
to pass false. The follow-on patch to of_mdio.c will pass true where
appropriate.
EXPORT phy_device_create() so that the follow-on patch to of_mdio.c
can use it to create phy devices for PHYs, that have non-standard
device identifier registers, based on the device tree bindings.
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When matching devices against an OF device ID table, the first string of
the compatible property that is listed in the table should match,
regardless of its position in the table.
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Without this, modules can't use this API, leading to build failures.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Pull MIPS updates from Ralf Baechle:
"The whole series has been sitting in -next for quite a while with no
complaints. The last change to the series was before the weekend the
removal of an SPI patch which Grant - even though previously acked by
himself - appeared to raise objections. So I removed it until the
situation is clarified. Other than that all the patches have the acks
from their respective maintainers, all MIPS and x86 defconfigs are
building fine and I'm not aware of any problems introduced by this
series.
Among the key features for this patch series is a sizable patchset for
Lantiq which among other things introduces support for Lantiq's
flagship product, the FALCON SOC. It also means that the opensource
developers behind this patchset have overtaken Lantiq's competing
inhouse development team that was working behind closed doors.
Less noteworthy the ath79 patchset which adds support for a few more
chip variants, cleanups and fixes. Finally the usual dose of tweaking
of generic code."
Fix up trivial conflicts in arch/mips/lantiq/xway/gpio_{ebu,stp}.c where
printk spelling fixes clashed with file move and eventual removal of the
printk.
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (81 commits)
MIPS: lantiq: remove orphaned code
MIPS: Remove all -Wall and almost all -Werror usage from arch/mips.
MIPS: lantiq: implement support for FALCON soc
MTD: MIPS: lantiq: verify that the NOR interface is available on falcon soc
MTD: MIPS: lantiq: implement OF support
watchdog: MIPS: lantiq: implement OF support and minor fixes
SERIAL: MIPS: lantiq: implement OF support
GPIO: MIPS: lantiq: convert gpio-stp-xway to OF
GPIO: MIPS: lantiq: convert gpio-mm-lantiq to OF and of_mm_gpio
GPIO: MIPS: lantiq: move gpio-stp and gpio-ebu to the subsystem folder
MIPS: pci: convert lantiq driver to OF
MIPS: lantiq: convert dma to platform driver
MIPS: lantiq: implement support for clkdev api
MIPS: lantiq: drop ltq_gpio_request() and gpio_to_irq()
OF: MIPS: lantiq: implement irq_domain support
OF: MIPS: lantiq: implement OF support
MIPS: lantiq: drop mips_machine support
OF: PCI: const usage needed by MIPS
MIPS: Cavium: Remove smp_reserve_lock.
MIPS: Move cache setup to setup_arch().
...
Pull i2c-embedded changes from Wolfram Sang:
"Major changes:
- lots of devicetree additions for existing drivers. I tried hard to
make sure the bindings are proper. In more complicated cases, I
requested acks from people having more experience with them than
me. That took a bit of extra time and also some time went into
discussions with developers about what bindings are and what not.
I have the feeling that the workflow with bindings should be
improved to scale better. I will spend some more thought on
this...
- i2c-muxes are succesfully used meanwhile, so we dropped
EXPERIMENTAL for them and renamed the drivers to a standard pattern
to match the rest of the subsystem. They can also be used with
devicetree now.
- ixp2000 was removed since the whole platform goes away.
- cleanups (strlcpy instead of strcpy, NULL instead of 0)
- The rest is typical driver fixes I assume.
All patches have been in linux-next at least since v3.4-rc6."
Fixed up trivial conflict in arch/arm/mach-lpc32xx/common.c due to the
same patch already having come in through the arm/soc trees, with
additional patches on top of it.
* 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux: (35 commits)
i2c: davinci: Free requested IRQ in remove
i2c: ocores: register OF i2c devices
i2c: tegra: notify transfer-complete after clearing status.
I2C: xiic: Add OF binding support
i2c: Rename last mux driver to standard pattern
i2c: tegra: fix 10bit address configuration
i2c: muxes: rename first set of drivers to a standard pattern
of/i2c: implement of_find_i2c_adapter_by_node
i2c: implement i2c_verify_adapter
i2c-s3c2410: Add HDMIPHY quirk for S3C2440
i2c-s3c2410: Rework device type handling
i2c: muxes are not EXPERIMENTAL anymore
i2c/of: Automatically populate i2c mux busses from device tree data.
i2c: Add a struct device * parameter to i2c_add_mux_adapter()
of/i2c: call i2c_verify_client from of_find_i2c_device_by_node
i2c: designware: Add clk_{un}prepare() support
i2c: designware: add PM support
i2c: ixp2000: remove driver
i2c: pnx: add device tree support
i2c: imx: don't use strcpy but strlcpy
...
Lots of gpio changes, both to core code and drivers. Changes do touch
architecture code to remove the need for separate arm/gpio.h includes
in most architectures. Some new drivers are added, and a number of
gpio drivers are converted to use irq_domains for gpio inputs used as
interrupts. Device tree support has been amended to allow multiple
gpio_chips to use the same device tree node. Remaining changes are
primarily bug fixes.
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6
Pull GPIO driver changes from Grant Likely:
"Lots of gpio changes, both to core code and drivers.
Changes do touch architecture code to remove the need for separate
arm/gpio.h includes in most architectures.
Some new drivers are added, and a number of gpio drivers are converted
to use irq_domains for gpio inputs used as interrupts. Device tree
support has been amended to allow multiple gpio_chips to use the same
device tree node.
Remaining changes are primarily bug fixes."
* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: (33 commits)
gpio/generic: initialize basic_mmio_gpio shadow variables properly
gpiolib: Remove 'const' from data argument of gpiochip_find()
gpio/rc5t583: add gpio driver for RICOH PMIC RC5T583
gpiolib: quiet gpiochip_add boot message noise
gpio: mpc8xxx: Prevent NULL pointer deref in demux handler
gpio/lpc32xx: Add device tree support
gpio: Adjust of_xlate API to support multiple GPIO chips
gpiolib: Implement devm_gpio_request_one()
gpio-mcp23s08: dbg_show: fix pullup configuration display
Add support for TCA6424A
gpio/omap: (re)fix wakeups on level-triggered GPIOs
gpio/omap: fix broken context restore for non-OFF mode transitions
gpio/omap: fix missing check in *_runtime_suspend()
gpio/omap: remove cpu_is_omapxxxx() checks from *_runtime_resume()
gpio/omap: remove suspend/resume callbacks
gpio/omap: remove retrigger variable in gpio_irq_handler
gpio/omap: remove saved_wakeup field from struct gpio_bank
gpio/omap: remove suspend_wakeup field from struct gpio_bank
gpio/omap: remove saved_fallingdetect, saved_risingdetect
gpio/omap: remove virtual_irq_start variable
...
Conflicts:
drivers/gpio/gpio-samsung.c
Bug fixes and new features for SPI device drivers. Also move device
tree support code out of drivers/of and into drivers/spi/spi.c where
it makes more sense.
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Merge tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6
Pull SPI changes from Grant Likely:
"Bug fixes and new features for SPI device drivers. Also move device
tree support code out of drivers/of and into drivers/spi/spi.c where
it makes more sense."
* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
spi: By default setup spi_masters with 1 chipselect and dynamics bus number
SPI: PRIMA2: use the newest APIs of PINCTRL to fix compiling errors
spi/spi-fsl-spi: reference correct pdata in fsl_spi_cs_control
spi: refactor spi-coldfire-qspi to use SPI queue framework.
spi/omap2-mcspi: convert to the pump message infrastructure
spi/rspi: add dmaengine support
spi/topcliff: use correct __devexit_p annotation
spi: Dont call prepare/unprepare transfer if not populated
spi/ep93xx: clean probe/remove routines
spi/devicetree: Move devicetree support code into spi directory
spi: use module_pci_driver
spi/omap2-mcspi: Trivial optimisation
spi: omap2-mcspi: add support for pm_runtime autosuspend
spi/omap: Remove bus_num usage for instance index
OMAP : SPI : use devm_* functions
spi: omap2-mcspi: convert to module_platform_driver
spi: omap2-mcspi: make it behave as a module
The spear3xx, lpc32xx, shmobile and mmp platforms are joining the game of
booting using device trees, which is a great step forward for them. at91
and spear have pretty much completed this process with a huge amount of
work being put into at91. The other platforms are continuing the process.
We finally start to see the payback on this investment, as new machines
are getting supported purely by adding a .dts source file that can be
completely independent of the kernel source.
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull device tree conversions for arm-soc, part 1, from Olof Johansson:
"The spear3xx, lpc32xx, shmobile and mmp platforms are joining the game
of booting using device trees, which is a great step forward for them.
at91 and spear have pretty much completed this process with a huge
amount of work being put into at91. The other platforms are
continuing the process.
We finally start to see the payback on this investment, as new
machines are getting supported purely by adding a .dts source file
that can be completely independent of the kernel source."
Fix up trivial conflict in arch/arm/Kconfig
* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
ARM: at91: Add ADC driver to at91sam9260/at91sam9g20 dtsi files
arm/dts: omap4-panda: Add LEDs support
arm/dts: omap4-sdp: Add LEDs support
arm/dts: twl4030: Add twl4030-gpio node
OMAP4: devices: Do not create mcpdm device if the dtb has been provided
OMAP4: devices: Do not create dmic device if the dtb has been provided
Documentation: update docs for mmp dt
ARM: dts: refresh dts file for arch mmp
ARM: mmp: support pxa910 with device tree
ARM: mmp: support mmp2 with device tree
gpio: pxa: parse gpio from DTS file
ARM: mmp: support DT in timer
ARM: mmp: support DT in irq
ARM: mmp: append CONFIG_MACH_MMP2_DT
ARM: mmp: fix build issue on mmp with device tree
ARM: ux500: Enable PRCMU Timer 4 (clocksource) for Device Tree
ARM: ux500: Disable SMSC911x platform code registration when DT is enabled
ARM: ux500: Fork cpu-db8500 platform_devs for sequential DT enablement
ARM: ux500: Do not attempt to register non-existent i2c devices on Snowball
ARM: SPEAr3xx: Correct keyboard data passed from DT
...
- Generic Device Tree bindings and hooks for drivers so we can
move over modern drivers to using this.
- Device Tree bindings for Tegra SoCs.
- Funneling some devicetree helper code for the drivers/of
subsystem.
- New pin control drivers for:
- Freescale MXS
- Freescale i.MX51
- Freescale i.MX53
- All of these use Device Tree bindings.
- Dummy pinctrl handles for stepwise migration to pinctrl, akin
to dummy regulators.
- Minor non-urgent fixes and improvments.
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Merge tag 'pinctrl-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control subsystem changes from Linus Walleij:
- Generic Device Tree bindings and hooks for drivers so we can move
over modern drivers to using this.
- Device Tree bindings for Tegra SoCs.
- Funneling some devicetree helper code for the drivers/of subsystem.
- New pin control drivers for:
* Freescale MXS
* Freescale i.MX51
* Freescale i.MX53
All of these use Device Tree bindings.
- Dummy pinctrl handles for stepwise migration to pinctrl, akin to
dummy regulators.
- Minor non-urgent fixes and improvments.
Fix up trivial conflicts in Documentation/driver-model/devres.txt and
drivers/pinctrl/core.c,
* tag 'pinctrl-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (46 commits)
pinctrl: pinctrl-imx: add imx51 pinctrl driver
pinctrl: pinctrl-imx: add imx53 pinctrl driver
pinctrl: pinctrl-pxa3xx: remove empty pinmux disable function
pinctrl: pinctrl-mxs: remove empty pinmux disable function
pinctrl: pinctrl-imx: remove empty pinmux disable function
pinctrl: make pinmux disable function optional
pinctrl: a minor error checking improvement for pinconf
pinctrl: mxs: skip gpio nodes for group creation
pinctrl: mxs: create group for pin config node
pinctrl: (cosmetic) fix two entries in DocBook comments
pinctrl: add more info to error msgs in pin_request
pinctrl: add pinctrl-mxs support
pinctrl: pinctrl-imx: add imx6q pinctrl driver
pinctrl: pinctrl-imx: add imx pinctrl core driver
dt: add of_get_child_count helper function
pinctrl: support gpio request deferred probing
pinctrl: add pinctrl_provide_dummies interface for platforms to use
pinctrl: enhance reporting of errors when loading from DT
pinctrl: add kerneldoc for pinctrl_ops device tree functions
pinctrl: propagate map validation errors
...
On MIPS we want to call of_irq_map_pci from inside
arch/mips/include/asm/pci.h:extern int pcibios_map_irq(
const struct pci_dev *dev, u8 slot, u8 pin);
For this to work we need to change several functions to const usage.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-pci@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-mips@linux-mips.org
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Patchwork: https://patchwork.linux-mips.org/patch/3710/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This finds the struct i2c_adapter * for a given device tree node. Just
like of_find_i2c_device_by_node.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
i2c_bus_type may contain both I2C clients and I2C adapters. Fix
of_find_i2c_device_by_node to call i2c_verify_client to ensure that it
only returns non-NULL of I2C clients.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Add of_mdio_find_bus() which allows an mii_bus to be located given its
associated the device tree node.
This is needed by the follow-on patch to add a driver for MDIO bus
multiplexers.
The of_mdiobus_register() function is modified so that the device tree
node is recorded in the mii_bus. Then we can find it again by
iterating over all mdio_bus_class devices.
Because the OF device tree has now become an integral part of the
kernel, this can live in mdio_bus.c (which contains the needed
mdio_bus_class structure) instead of of_mdio.c.
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
The register and irq definitions in mach/*.h for spear3xx and
spear6xx are now mostly obsolete, after the platforms have been
converted to device tree based probing and the data is now
part of the device tree files.
The misc_regs.h contents are moved into clock.c because that is
the only user, aside from the DMA_CHN_CFG that should eventually
get handled differently. Some of the contents of mach/spear.h
still remain, because they are used to set up the static map table,
timer, uart and auxdata tables, but almost everything got removed.
We might remove everything but the map table as the DT conversion
completes, but that is not a priority. I've also made sure to
make both copies of spear.h more or less identical so we can
eventually combine them.
The spear3?0.h files were only used by the spear3?0.c files, so I
merged the contents in there and removed the bits that were unused.
This is something that should still be looked at.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@st.com>
This patch adds macros of_property_for_each_u32() and
of_property_for_each_string(), which iterate over an array of values
within a device-tree property. Usage is for example:
struct property *prop;
const __be32 *p;
u32 u;
of_property_for_each_u32(np, "propname", prop, p, u)
printk("U32 value: %x\n", u);
struct property *prop;
const char *s;
of_property_for_each_string(np, "propname", prop, s)
printk("String value: %s\n", s);
Based on work by Rob Herring <robherring2@gmail.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The SPI device tree support code isn't shared by any other subsystem. It can
be moved into the core drivers/spi directory and the exported symbol can be
removed.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
of_gpio_simple_xlate() has an off-by-one bug where it checks to see if
args[0] is > ngpio instead of >=. args[0] must always be less than
ngpio because it is a zero-based enumeration.
Signed-off-by: Roland Stigge <stigge@antcom.de>
[grant.likely: beef up commit text]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
The code in drivers/of/gpio.c isn't shared by any other subsystem since it
is all gpiolib specific. drivers/gpio is a better place to maintain these
functions.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Primarily gpio device driver changes with some minor side effects
under arch/arm and arch/x86. Also includes a few core changes such as
explicitly supporting (electrical) open source and open drain outputs
and some help for parsing gpio devicetree properties.
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6
Pull GPIO changes for v3.4 from Grant Likely:
"Primarily gpio device driver changes with some minor side effects
under arch/arm and arch/x86. Also includes a few core changes such as
explicitly supporting (electrical) open source and open drain outputs
and some help for parsing gpio devicetree properties."
Fix up context conflict due to Laxman Dewangan adding sleep control for
the tps65910 driver separately for gpio's and regulators.
* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits)
gpio/ep93xx: Remove unused inline function and useless pr_err message
gpio/sodaville: Mark broken due to core irqdomain migration
gpio/omap: fix redundant decoding of gpio offset
gpio/omap: fix incorrect update to context.irqenable1
gpio/omap: fix incorrect context restore logic in omap_gpio_runtime_*
gpio/omap: fix missing dataout context save in _set_gpio_dataout_reg
gpio/omap: fix _set_gpio_irqenable implementation
gpio/omap: fix trigger type to unsigned
gpio/omap: fix wakeup_en register update in _set_gpio_wakeup()
gpio: tegra: tegra_gpio_config shouldn't be __init
gpio/davinci: fix enabling unbanked GPIO IRQs
gpio/davinci: fix oops on unbanked gpio irq request
gpio/omap: Fix section warning for omap_mpuio_alloc_gc()
ARM: tegra: export tegra_gpio_{en,dis}able
gpio/gpio-stmpe: Fix the value returned by _get_value routine
Documentation/gpio.txt: Explain expected pinctrl interaction
GPIO: LPC32xx: Add output reading to GPO P3
GPIO: LPC32xx: Fix missing bit selection mask
gpio/omap: fix wakeups on level-triggered GPIOs
gpio/omap: Fix IRQ handling for SPARSE_IRQ
...
This branch contains a number of updates for device tree support on
several ARM platforms, in particular:
* AT91 continues the device tree conversion adding support for a number of
on-chip drivers and other functionality
* ux500 adds probing of some of the core SoC blocks through device tree
* Initial device tree support for ST SPEAr600 platforms
* kirkwood continues the conversion to device-tree probing
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Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: More device tree support updates" from Olof Johansson:
"This branch contains a number of updates for device tree support on
several ARM platforms, in particular:
* AT91 continues the device tree conversion adding support for a
number of on-chip drivers and other functionality
* ux500 adds probing of some of the core SoC blocks through device
tree
* Initial device tree support for ST SPEAr600 platforms
* kirkwood continues the conversion to device-tree probing"
Manually merge arch/arm/mach-ux500/Kconfig due to MACH_U8500 rename, and
drivers/usb/gadget/at91_udc.c due to header file include cleanups.
Also do an "evil merge" for the MACH_U8500 config option rename that the
affected RMI4 touchscreen driver in staging. It's called MACH_MOP500
now, and it was missed during previous merges.
* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
ARM: SPEAr600: Add device-tree support to SPEAr600 boards
ARM: ux500: Provide local timer support for Device Tree
ARM: ux500: Enable PL022 SSP Controller in Device Tree
ARM: ux500: Enable PL310 Level 2 Cache Controller in Device Tree
ARM: ux500: Enable PL011 AMBA UART Controller for Device Tree
ARM: ux500: Enable Cortex-A9 GIC (Generic Interrupt Controller) in Device Tree
ARM: ux500: db8500: list most devices in the snowball device tree
ARM: ux500: split dts file for snowball into generic part
ARM: ux500: combine the board init functions for DT boot
ARM: ux500: Initial Device Tree support for Snowball
ARM: ux500: CONFIG: Enable Device Tree support for future endeavours
ARM: kirkwood: use devicetree for rtc-mv
ARM: kirkwood: rtc-mv devicetree bindings
ARM: kirkwood: fdt: define uart[01] as disabled, enable uart0
ARM: kirkwood: fdt: facilitate new boards during fdt migration
ARM: kirkwood: fdt: absorb kirkwood_init()
ARM: kirkwood: fdt: use mrvl ticker symbol
ARM: orion: wdt: use resource vice direct access
ARM: Kirkwood: Remove tclk from kirkwood_asoc_platform_data.
ARM: orion: spi: remove enable_clock_fix which is not used
...
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
...
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
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
...
* spear/dt:
ARM: SPEAr600: Add device-tree support to SPEAr600 boards
(update to v3.3-rc7)
Conflicts:
arch/arm/mach-spear6xx/spear6xx.c
arch/arm/mach-vexpress/Kconfig
The conflicts are between the previous contents of the next/dt2
branch and upstream changes from v3.3-rc7.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Rob Herring