| Commit message (Collapse) | Author | Age |
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twl-regulator has a collection of feature flags, some defined
in twl-core.c and one defined in i2c/twl.h.
This is confusing for anyone adding a new feature flag.
So collect them together and place them in twl.h immediately
after the structure in which they are initially set.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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This commit adds device tree support for the TPS6586x regulator.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Looking up init data for regulators found on chips is a common operation
that can be handled in a generic way. The new helper function introduced
by this patch looks up the children of a given node by names specified
in a match table and fills that match table with information parsed from
the DT.
This is based on work by Rhyland Klein <rklein@nvidia.com>.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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This reverts commit 98d8618af37728f6e18e84110ddb99987b47dd12 as it
breaks the build of the muic driver.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Add irq domain support for max8997 interrupts. The reverse mapping method
used is linear mapping since the sub-drivers of max8997 such as regulator
and charger drivers can use the max8997 irq_domain to get the linux irq
number for max8997 interrupts. All uses of irq_base in platform data and
max8997 driver private data are removed.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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'regulator/topic/regmap' and 'regulator/topic/register' into regulator-next
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This patch converts tps65090 regulator driver to use generic regmap
enable/disable operations.
Also move struct tps65090 to include/linux/mfd/tps65090.h because
the regulator driver needs to access the rmap field of struct tps65090.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Since the enable(), disable() and is_enabled() operations for most regmap
based regulators come down to reading and updating a single register bit
we can factor out the code and allow these drivers to just define which
bit to update using the enable_reg and enable_mask fields in their desc
and then use operations provided by the core.
As well as the code saving this opens the door to future optimisation of
the bulk operations - if the core can realise that we are updating a
single register for multiple regulators then it should be able to combine
these updates into a single physical operation.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
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Since the voltage selector operations are intended to directly map a
bitfield in the device register map into regulator API operations the
code for implementing them is usually very standard we can save some
code by providing standard implementations for devices using the regmap
API.
Drivers using regmap can pass their regmap in in the regmap_config
struct, set vsel_reg and vsel_mask in their regulator_desc and then
use regulator_{get,set}_voltage_sel_regmap in their ops. This saves
a small amount of code from each driver.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
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Since many regulators use regmap for register I/O and since there's quite
a few very common patterns in the code allow drivers to pass in a regmap
to the core for use in generic code.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
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Linux 3.4-rc2 contains some fixes that further patches depend upon.
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Rather than adding new arguments to regulator_register() every time we
want to add a new bit of dynamic information at runtime change the function
to take these via a struct. By doing this we avoid needing to do further
changes like the recent addition of device tree support which required each
regulator driver to be updated to take an additional parameter.
The regulator_desc which should (mostly) be static data is still passed
separately as most drivers are able to configure this statically at build
time.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Drivers should be able to declare their descriptors const and the framework
shouldn't ever be modifying the desciptor. Make the parameter and the
pointer in regulator_dev const to enforce this.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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The RC5T583 PMIC from RICOH consists of 4 DCDC and 10
LDOs. This driver supports the control of different
regulator output through regulator interface.
This driver depends on MFD driver of RC5T583 and uses
mfd rc5t583 apis to communicate to device for accessing
different device's registers.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Adding flag on fixed regulator board configuration structure
to specify whether gpio is open drain type or not.
Passing this information to gpio library when requesting
gpio so that gpio driver can set the pin state accordingly,
for open drain type:
- Pin can be set HIGH as setting as input, PULL UP on
pin make this as HIGH.
- Pin can be set LOW as setting it as output and drive to LOW.
The non-open drain pin can be set HIGH/LOW by setting it to
output and driving it to HIGH/LOW.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Add TPS65090 regulator driver
TPS65090 PMIC from TI consists of 3 step down converters,
2 always on LDOs and 7 current limited load switches. The
output voltages are ON/OFF controllable and are meant to
supply power to the components on target board.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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This patch add variables for opmode of s5m series.
S5M series have 4 operation modes.
Off mode is always regulator off mode.
On mode is always regulator on mode.
Lowpower mode is that regualtor operate in low-power.
Suspend mode is that regulator operation depends on AP suspend mode.
Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"A surprisingly large series of updates for regmap this time, mostly
due to all the work Stephen Warren has done to add support for MMIO
buses. This wasn't really the target for the framework but it turns
out that there's a reasonable number of cases where it's very helpful
to use the register cache support to allow the register map to remain
available while the device is suspended.
- A MMIO bus implementation, contributed by Stephen Warren. Currently
this is limited to 32 bit systems and native endian registers.
- Support for naming register maps, mainly intended for MMIO devices
with multiple register banks. This was also contributed by Stephen
Warren.
- Support for register striding, again contributed by Stephen Warren
and mainly intended for use with MMIO as typically the registers
will be a fixed size but byte addressed.
- irqdomain support for the generic regmap irq_chip, including support
for dynamically allocate interrupt numbers.
- A function dev_get_regmap() which allows frameworks using regmap to
obtain the regmap for a device from the struct device, making life a
little simpler for them.
- Updates to regmap-irq to support more chips (contributed by Graeme
Gregory) and to use irqdomains.
- Support for devices with 24 bit register addresses.
The striding support collided with all the topic branches so the
branches look a bit messy and eventually I just gave up. There's also
the TI Palmas driver and a couple of other isolated MFD patches that
all depend on new regmap features so are being merged here."
* tag 'regmap-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (24 commits)
mfd: palmas PMIC device support Kconfig
mfd: palmas PMIC device support
regmap: Fix typo in IRQ register striding
mfd: wm8994: Update to fully use irq_domain
regmap: add support for non contiguous status to regmap-irq
regmap: Convert regmap_irq to use irq_domain
regmap: Pass back the allocated regmap IRQ controller data
mfd: da9052: Fix genirq abuse
regmap: Implement dev_get_regmap()
regmap: Devices using format_write don't support bulk operations
regmap: Converts group operation into single read write operations
regmap: Cache single values read from the chip
regmap: fix compile errors in regmap-irq.c due to stride changes
regmap: implement register striding
regmap: fix compilation when !CONFIG_DEBUG_FS
regmap: allow regmap instances to be named
regmap: validate regmap_raw_read/write val_len
regmap: mmio: remove some error checks now in the core
regmap: mmio: convert some error returns to BUG()
regmap: add MMIO bus support
...
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Palmas is a PMIC from Texas Instruments and this is the MFD part of the
driver for this chip. The PMIC has SMPS and LDO regulators, a general
purpose ADC, GPIO, USB OTG mode detection, watchdog and RTC features.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Take advantage of the new regmap irq_domain support to dynamically
allocate interrupts, using regmap_irq_get_virq() rather than irq_base
to look up the interrupts. This means that most users should not need
to specify an irq_base at all.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
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In some chips the IRQ status registers are not contiguous in the register
map but spaced at even spaces. This is an easy case to handle with minor
changes. It is assume for this purpose that the stride for status is
equal to the stride for mask/ack registers as well.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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This gets us up to date with the recommended current kernel infrastructure
and should transparently give us device tree interrupt bindings for any
devices using the framework. If an explicit IRQ mapping is passed in then
a legacy interrupt range is created, otherwise a simple linear mapping is
used. Previously a mapping was mandatory so existing drivers should not
be affected.
A function regmap_irq_get_virq() is provided to allow drivers to map
individual IRQs which should be used in preference to the existing
regmap_irq_chip_get_base() which is only valid if a legacy IRQ range is
provided.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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'regmap-irq' into regmap-next
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Rather than using the pointer passed back by the regmap API (or complaining
because that wasn't actually being set) the da9052 driver was having some
fun and games peering through genirq and regmap internals. Fix the driver
to use the API as expected.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Use devres to implement dev_get_regmap(). This should mean that in almost
all cases devices wishing to take advantage of framework features based on
regmap shouldn't need to explicitly pass the regmap into the framework.
This simplifies device setup a bit.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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regmap: Last minute bug fix for 3.4
This is a last minute bug fix that was only just noticed since the code
path that's being exercised here is one that is fairly rarely used. The
changelog for the change itself is extremely clear and the code itself
is obvious to inspection so should be pretty safe.
Conflicts:
drivers/base/regmap/regmap.c (overlap between the fix and stride code)
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Some devices does not support bulk read and write operations, for them
we have series of single write and read operations.
Signed-off-by: Anthony Olech <Anthony.Olech@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
[Fixed coding style, don't check use_single_rw before assign --broonie ]
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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regmap_config.reg_stride is introduced. All extant register addresses
are a multiple of this value. Users of serial-oriented regmap busses will
typically set this to 1. Users of the MMIO regmap bus will typically set
this based on the value size of their registers, in bytes, so 4 for a
32-bit register.
Throughout the regmap code, actual register addresses are used. Wherever
the register address is used to index some array of values, the address
is divided by the stride to determine the index, or vice-versa. Error-
checking is added to all entry-points for register address data to ensure
that register addresses actually satisfy the specified stride. The MMIO
bus ensures that the specified stride is large enough for the register
size.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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regmap-stride
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Some devices have multiple separate register regions. Logically, one
regmap would be created per region. One issue that prevents this is that
each instance will attempt to create the same debugfs files. Avoid this
by allowing regmaps to be named, and use the name to construct the
debugfs directory name.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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This is a basic memory-mapped-IO bus for regmap. It has the following
features and limitations:
* Registers themselves may be 8, 16, 32, or 64-bit. 64-bit is only
supported on 64-bit platforms.
* Register offsets are limited to precisely 32-bit.
* IO is performed using readl/writel, with no provision for using the
__raw_readl or readl_relaxed variants.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Some bus types have very fast IO. For these, acquiring a mutex for every
IO operation is a significant overhead. Allow busses to indicate their IO
is fast, and enhance regmap to use a spinlock for those busses.
[Currently limited to native endian registers -- broonie]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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The only context needed by I2C and SPI bus definitions is the device
itself; this can be converted to an i2c_client or spi_device in order
to perform IO on the device. However, other bus types may need more
context in order to perform IO. Enable this by having regmap_init accept
a bus_context parameter, and pass this to all bus callbacks. The
existing callbacks simply pass the struct device here. Future bus types
may pass something else.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas:
- Host bridge cleanups from Yinghai
- Disable Bus Master bit on PCI device shutdown (kexec-related)
- Stratus ftServer fix
- pci_dev_reset() locking fix
- IvyBridge graphics erratum workaround
* tag 'pci-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (21 commits)
microblaze/PCI: fix "io_offset undeclared" error
x86/PCI: only check for spinlock being held in SMP kernels
resources: add resource_overlaps()
PCI: fix uninitialized variable 'cap_mask'
MAINTAINERS: update PCI git tree and patchwork
PCI: disable Bus Master on PCI device shutdown
PCI: work around IvyBridge internal graphics FLR erratum
x86/PCI: fix unused variable warning in amd_bus.c
PCI: move mutex locking out of pci_dev_reset function
PCI: work around Stratus ftServer broken PCIe hierarchy
x86/PCI: merge pcibios_scan_root() and pci_scan_bus_on_node()
x86/PCI: dynamically allocate pci_root_info for native host bridge drivers
x86/PCI: embed pci_sysdata into pci_root_info on ACPI path
x86/PCI: embed name into pci_root_info struct
x86/PCI: add host bridge resource release for _CRS path
x86/PCI: refactor get_current_resources()
PCI: add host bridge release support
PCI: add generic device into pci_host_bridge struct
PCI: rename pci_host_bridge() to find_pci_root_bridge()
x86/PCI: fix memleak with get_current_resources()
...
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Add resource_overlaps(), which returns true if two resources overlap at all.
Use this to replace the complicated check in coalesce_windows().
Signed-Off-By: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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A PCIe downstream port is a P2P bridge. Its secondary interface is
a link that should lead only to device 0 (unless ARI is enabled)[1], so
we don't probe for non-zero device numbers.
Some Stratus ftServer systems have a PCIe downstream port (02:00.0) that
leads to both an upstream port (03:00.0) and a downstream port (03:01.0),
and 03:01.0 has important devices below it:
[0000:02]-+-00.0-[03-3c]--+-00.0-[04-09]--...
\-01.0-[0a-0d]--+-[USB]
+-[NIC]
+-...
Previously, we didn't enumerate device 03:01.0, so USB and the network
didn't work. This patch adds a DMI quirk to scan all device numbers,
not just 0, below a downstream port.
Based on a patch by Prarit Bhargava.
[1] PCIe spec r3.0, sec 7.3.1
CC: Myron Stowe <mstowe@redhat.com>
CC: Don Dutile <ddutile@redhat.com>
CC: James Paradis <james.paradis@stratus.com>
CC: Matthew Wilcox <matthew.r.wilcox@intel.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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We need a hook to release host bridge resources allocated when creating
root bus.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Use that device for pci_root_bus bridge pointer.
Use pci_release_bus_bridge_dev() to release allocated pci_host_bridge in
remove path.
Use root bus bridge pointer to get host bridge pointer instead of searching
host bridge list. That leaves the host bridge list unused, so remove it.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Pull core ARM updates from Russell King:
"This is the bulk of the core ARM updates for this merge window.
Included in here is a different way to handle the VIVT cache flushing
on context switch, which should allow scheduler folk to remove a
special case in their core code.
We have architectured timer support here, which is a set of timers
specified by the ARM architecture for future SoCs. So we should see
less variability in timer design going forward.
The last big thing here is my cleanup to the way we handle PCI across
ARM, fixing some oddities in some platforms which hadn't realised
there was a way to deal with their private data already built in to
our PCI backend.
I've also removed support for the ARMv3 architecture; it hasn't worked
properly for years so it seems pointless to keep it around."
* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (47 commits)
ARM: PCI: remove per-pci_hw list of buses
ARM: PCI: dove/kirkwood/mv78xx0: use sys->private_data
ARM: PCI: provide a default bus scan implementation
ARM: PCI: get rid of pci_std_swizzle()
ARM: PCI: versatile: fix PCI interrupt setup
ARM: PCI: integrator: use common PCI swizzle
ARM: 7416/1: LPAE: Remove unused L_PTE_(BUFFERABLE|CACHEABLE) macros
ARM: 7415/1: vfp: convert printk's to pr_*'s
ARM: decompressor: avoid speculative prefetch from non-RAM areas
ARM: Remove ARMv3 support from decompressor
ARM: 7413/1: move read_{boot,persistent}_clock to the architecture level
ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs
ARM: 7363/1: DEBUG_LL: limit early mapping to the minimum
ARM: 7391/1: versatile: add some auxdata for device trees
ARM: 7389/2: plat-versatile: modernize FPGA IRQ controller
AMBA: get rid of last two uses of NO_IRQ
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
ARM: 7409/1: Do not call flush_cache_user_range with mmap_sem held
ARM: 7404/1: cmpxchg64: use atomic64 and local64 routines for cmpxchg64
ARM: 7347/1: SCU: use cpu_logical_map for per-CPU low power mode
...
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and 'versatile' into for-linus
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Add two functions to add APB and AHB devices to the amba (PrimeCell)
bus dynamically. This is modeled after the static definition
macros recently introduced into <linux/amba/bus.h> and can
help us in factoring out a bunch of code across the kernel.
Since a lot of call sites seem to be using a returned struct
amba device* pointer, let's use that.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Pull clkdev updates from Russell King:
"This supplements clkdev with a device-managed API, allowing drivers
cleanup paths to be simplified. We also optimize clk_find() so that
it exits as soon as it finds a perfect match, and we provide a way to
minimise the amount of code platforms need to register clkdev entries.
Some of the code in arm-soc depends on these changes."
* 'clkdev' of git://git.linaro.org/people/rmk/linux-arm:
CLKDEV: provide helpers for common clock framework
ARM: 7392/1: CLKDEV: Optimize clk_find()
ARM: 7376/1: clkdev: Implement managed clk_get()
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The common clock framework allocates clocks dynamically. Provide a
set of helpers to streamline the clkdev registration of the clock
lookups to avoid repetitive code sequences.
Reviewed-by: Viresh Kumar <viresh.kumar@st.com>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Allow clk API users to simplify their cleanup paths by providing a
managed version of clk_get() and clk_put().
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Setup CROSS_COMPILE at the top
m68k: Correct the Atari ALLOWINT definition
m68k/video: Create <asm/vga.h>
m68k: Make sure {read,write}s[bwl]() are always defined
m68k/mm: Port OOM changes to do_page_fault()
scsi/atari: Make more functions static
scsi/atari: Revive "atascsi=" setup option
net/ariadne: Improve debug prints
m68k/atari: Change VME irq numbers from unsigned long to unsigned int
m68k/amiga: Use arch_initcall() for registering platform devices
m68k/amiga: Add error checks when registering platform devices
m68k/amiga: Mark z_dev_present() __init
m68k: Remove unused MAX_NOINT_IPL definition
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For now, it just contains the hack for cirrusfb on Amiga, which is moved
out of <video/vga.h> with some slight modifications (use raw_*() instead of
z_*(), which are defined on all m68k platforms).
This makes it safe to include <video/vga.h> in all contexts. Before it
could fail to compile with
include/video/vga.h: In function ‘vga_mm_r’:
include/video/vga.h:242: error: implicit declaration of function ‘z_readb’
include/video/vga.h: In function ‘vga_mm_w’:
include/video/vga.h:247: error: implicit declaration of function ‘z_writeb’
include/video/vga.h: In function ‘vga_mm_w_fast’:
include/video/vga.h:253: error: implicit declaration of function ‘z_writew’
or
include/video/vga.h:23:21: error: asm/vga.h: No such file or directory
depending on the value of CONFIG_AMIGA.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
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Pull networking changes from David Miller:
1) Get rid of the error prone NLA_PUT*() macros that used an embedded
goto.
2) Kill off the token-ring and MCA networking drivers, from Paul
Gortmaker.
3) Reduce high-order allocations made by datagram AF_UNIX sockets, from
Eric Dumazet.
4) Add PTP hardware clock support to IGB and IXGBE, from Richard
Cochran and Jacob Keller.
5) Allow users to query timestamping capabilities of a card via
ethtool, from Richard Cochran.
6) Add loadbalance mode to the teaming driver, from Jiri Pirko. Part
of this is that we can now have BPF filters not attached to sockets,
and the loadbalancing function is calculated using one.
7) Francois Romieu went through the network drivers removing gratuitous
uses of netdev->base_addr, perhaps some day we can remove it
completely but it's used for ISA probing still.
8) Add a BPF JIT for sparc. I know, who cares, right? :-)
9) Move networking sysctl registry away from using the compatability
mode interfaces in the sysctl code. From Eric W Biederman.
10) Pavel Emelyanov added a way to save and restore TCP socket state via
TCP_REPAIR, TCP_REPAIR_QUEUE, and TCP_QUEUE_SEQ socket options as
well as a way to forcefully bind a socket to a port via the
sk->sk_reuse value SK_FORCE_REUSE. There is also a
TCP_REPAIR_OPTIONS which allows to reinstante the TCP options
enabled on the connection.
11) Several enhancements from Eric Dumazet that, in particular, can
enhance splice performance on TCP sockets significantly.
a) Reset the offset of the per-socket sendmsg page when we know
we're the only use of the page in linear_to_page().
b) Add facilities such that skb->data can be backed a page rather
than SLAB kmalloc'd memory. In particular devices which were
receiving into linear RX buffers can now end up providing paged
data.
The big result is that code like splice and GRO do not have to copy
any more.
12) Allow a pure sender to more gracefully handle ACK backlogs in TCP.
What can happen at high rates is that the sender hasn't grown his
receive buffer limits at all (he's not receiving data so really
doesn't need to), but the non-data ACKs consume receive buffer
space.
sk_add_backlog() is too aggressive in dropping frames in this case,
so relax it's requirements by using the receive buffer plus the send
buffer limit as the backlog limit instead of just the former.
Also from Eric Dumazet.
13) Add ipv6 support to L2TP, from Benjamin LaHaise, James Chapman, and
Chris Elston.
14) Implement TCP early retransmit (RFC 5827), from Yuchung Cheng.
Basically, we can start fast retransmit before hiting the dupack
threshold under certain conditions.
15) New CODEL active queue management packet scheduler, from Eric
Dumazet based upon initial work by Dave Taht.
Basically, the big feature is that packets are dropped (or ECN bits
are set) based upon how long packets live in the queue, rather than
the queue length (which is what RED uses).
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1341 commits)
drivers/net/stmmac: seq_file fix memory leak
ipv6/exthdrs: strict Pad1 and PadN check
USB: qmi_wwan: Add ZTE (Vodafone) K3520-Z
USB: qmi_wwan: Add ZTE (Vodafone) K3765-Z
USB: qmi_wwan: Make forced int 4 whitelist generic
net/ipv4: replace simple_strtoul with kstrtoul
net/ipv4/ipconfig: neaten __setup placement
net: qmi_wwan: Add Vodafone/Huawei K5005 support
net: cdc_ether: Add ZTE WWAN matches before generic Ethernet
ipv6: use skb coalescing in reassembly
ipv4: use skb coalescing in defragmentation
net: introduce skb_try_coalesce()
net:ipv6:fixed space issues relating to operators.
net:ipv6:fixed a trailing white space issue.
ipv6: disable GSO on sockets hitting dst_allfrag
tg3: use netdev_alloc_frag() API
net: napi_frags_skb() is static
ppp: avoid false drop_monitor false positives
ipv6: bool/const conversions phase2
ipx: Remove spurious NULL checking in ipx_ioctl().
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