Now that the DWC2 driver has been moved to drivers/usb, move its
bindings doc to the correct place
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add tlv320aic32x4 to the compatible list in the binding documentation.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Merge tag 'v3.13-rc8' into core/locking
Refresh the tree with the latest fixes, before applying new changes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The LOCK and UNLOCK barriers as described in our barrier document are
generally known as ACQUIRE and RELEASE barriers in other literature.
Since we plan to introduce the acquire and release nomenclature in
generic kernel primitives we should amend the document to avoid
confusion as to what an acquire/release means.
Reviewed-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Victor Kaplansky <VICTORK@il.ibm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Link: http://lkml.kernel.org/r/20131217092435.GC21999@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Often, usb drivers need some driver_info to get a device to work. To
have access to driver_info when using new_id, allow to pass a reference
vendor:product tuple from which new_id will inherit driver_info.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Improve cache_status to emit:
<metadata block size> <#used metadata blocks>/<#total metadata blocks>
<cache block size> <#used cache blocks>/<#total cache blocks>
...
Adding the block sizes allows for easier calculation of the overall size
of both the metadata and cache devices. Adding <#total cache blocks>
provides useful context for how much of the cache is used.
Unfortunately these additions to the status will require updates to
users' scripts that monitor the cache status. But these changes help
provide more comprehensive information about the cache device and will
simplify tools that are being developed to manage dm-cache devices --
because they won't need to issue 3 operations to cobble together the
information that we can easily provide via a single status ioctl.
While updating the status documentation in cache.txt spaces were
tabify'd.
Requested-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Changed from "Please not that" to "Please note that"
Signed-off-by: David E. Narvaez <david.narvaez@computer.org>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch implements a device-tree-only CPU DAI driver for Freescale ESAI
controller that supports:
- 12 channels playback and 8 channels record.
[ Some of the inner transmitters and receivers are sharing same group of
pins. So the maxmium 12 output or 8 input channels are only valid if
there is no pin conflict occurring to it. ]
- Independent (asynchronous mode) or shared (synchronous mode) transmit and
receive sections with separate or shared internal/external clocks and frame
syncs, operating in Master or Slave mode.
[ Current ALSA seems not to allow CPU DAI drivers to configure DAI format
separately for PLAYBACK and CAPTURE. So this first version only supports
the case that uses the same DAI format for both directions. ]
- Various DAI formats: I2S, Left-Justified, Right-Justified, DSP-A and DSP-B.
- Programmable word length (8, 16, 20 or 24bits)
- Flexible selection between system clock or external oscillator as input
clock source, programmable internal clock divider and frame sync generation.
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Documentation/i2c/fault-codes illustrates EINVAL error code
as follows:
"One example would be a driver trying an SMBus Block Write
with block size outside the range of 1-32 bytes."
However, the actual implementation of i2c subsystem truncates
data length to be 32 bytes.
Hence this example cannot happen anymore, and since it's obsolete,
let's simply remove it from Documentation/i2c/fault-codes.
Signed-off-by: Helia Correia <helia.correia@intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
There is no list of compatibles that are supported. This patch adds a
list of compatibles to the documentation.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This patchset add new driver of extcon-max14577.c which detect various external
connector and fix minor issue of extcon provider driver(extcon-arizona/palams/
gpio.c). Also, update documentation of previous 'switch' porting guide and
extcon git repository url.
Detailed description for patchset:
- New driver of extcon-max14577.c
: Add extcon-max14577.c drvier to support Maxim MUIC(Micro USB Interface
Controller) which detect USB/TA/JIG/AUDIO-DOCK and additional accessory
according to each resistance when connected external connector.
- extcon-arizoan.c driver
: Code clean to use define macro instead of hex value
: Fix minor issue to reset back to our staring state
: Fix race with microphone detection and removal
- extcon-palmas.c driver
: Fix minor issue and renaming compatible string of Devicetree
- extcon-gpio.c driver
: Fix bug about ordering initialization of gpio pin on probe()
: Send uevent after wakeup from suspend state because some SoC
haven't wakeup interrupt on suspend state.
- Documentation (Documentation/extcon/porting-android-switch-class)
: Fix switch class porting guide
- Update extcon git repository url
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Merge tag 'extcon-next-for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next
Chanwoo writes:
Update extcon for v3.14
This patchset add new driver of extcon-max14577.c which detect various external
connector and fix minor issue of extcon provider driver(extcon-arizona/palams/
gpio.c). Also, update documentation of previous 'switch' porting guide and
extcon git repository url.
Detailed description for patchset:
- New driver of extcon-max14577.c
: Add extcon-max14577.c drvier to support Maxim MUIC(Micro USB Interface
Controller) which detect USB/TA/JIG/AUDIO-DOCK and additional accessory
according to each resistance when connected external connector.
- extcon-arizoan.c driver
: Code clean to use define macro instead of hex value
: Fix minor issue to reset back to our staring state
: Fix race with microphone detection and removal
- extcon-palmas.c driver
: Fix minor issue and renaming compatible string of Devicetree
- extcon-gpio.c driver
: Fix bug about ordering initialization of gpio pin on probe()
: Send uevent after wakeup from suspend state because some SoC
haven't wakeup interrupt on suspend state.
- Documentation (Documentation/extcon/porting-android-switch-class)
: Fix switch class porting guide
- Update extcon git repository url
The update did not applied on Korean translation although it applied on
English documentation. Apply it on Korean translation now.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
English version HOWTO updated the versioning but Korean version didn't.
Update it now.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
English version HOWTO updated the address but Korean version didn't.
Update it now.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
English version HOWTO updated the link but Korean version didn't. Update
it now.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Building mei-amt-version.o triggers a GCC warning:
Documentation/misc-devices/mei/mei-amt-version.c: In function 'main':
Documentation/misc-devices/mei/mei-amt-version.c:103:5: warning: 'acmd.fd' is used uninitialized in this function [-Wuninitialized]
if (cl->fd != -1)
^
Documentation/misc-devices/mei/mei-amt-version.c:443:21: note: 'acmd.fd' was declared here
struct amt_host_if acmd;
^
GCC is correct. See, the call chain that GCC detects must be
main()
amt_host_if_init()
mei_init()
mei_deinit()
But when we enter mei_deinit() struct amt_host_if acmd is still
unitialized. That makes the test for (effectively) amt_host_if->mei_cl->fd
bogus.
But it turns out that call of mei_deinit() isn't needed at all. All of
the members of mei_cl will be set later in mei_init() and none will be
used before they are set. So we can simply drop this call of
mei_deinit().
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Cc: Tomas Winkler <tomas.winkler@intel.com>
Reported-by: David Howells <dhowells@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Update the documentation also to reflect the fact that there are no ACPI
specific GPIO interfaces anymore but drivers should instead use the
descriptor based GPIO APIs.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch replace custom handling of IrDA feature with N_IRDA
line discipline, so IrDA mode can be used with irtty driver.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We have already renamed the file name, change doc name at this
patch.
Cc: devicetree@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The PCI-DMA-mapping.txt moved to general docs and became DMA-API-HOWTO.txt
in 5e07c2c730 ("Documentation: rename PCI/PCI-DMA-mapping.txt to
DMA-API-HOWTO.txt"). Add new file about PCI Express I/O Virtualization.
Signed-off-by: Erik Ekman <erik@kryo.se>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
hardware.h inclusion is no longer needed. Update the documentation section
related to it and fix a file path.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Update the ASoC overview to bring it up to date with the current code base
and include multi-component.
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Even though we might not have rigor rule for the simple card property names,
according to the existing ones, they are all in a same pattern:
[simple-audio-card,]XXX;
Rename simple-audio-routing to simple-audio-card,routing, and make the simple
card's properties has one unified name.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Internally the mq policy maintains a promotion threshold variable. If
the hit count of a block not in the cache goes above this threshold it
gets promoted to the cache.
This patch introduces three new tunables that allow you to tweak the
promotion threshold by adding a small value. These adjustments depend
on the io type:
read_promote_adjustment: READ io, default 4
write_promote_adjustment: WRITE io, default 8
discard_promote_adjustment: READ/WRITE io to a discarded block, default 1
If you're trying to quickly warm a new cache device you may wish to
reduce these to encourage promotion. Remember to switch them back to
their defaults after the cache fills though.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
If the pool runs out of data or metadata space, the pool can either
queue or error the IO destined to the data device. The default is to
queue the IO until more space is added.
An admin may now configure the pool to error IO when no space is
available by setting the 'error_if_no_space' feature when loading the
thin-pool table.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
The Palmas device contains only a USB VBUS-ID detector, so added a
compatible type *ti,palmas-usb-vid*. Didn't remove the existing compatible
types for backward compatibility.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* Several patches fixing up incorrectly defined register addresses and
bitfield offsets that could lead to undefined operation when accessing
respective registers or bitfields.
1) clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
2a) clk: samsung: exynos5250: Fix ACP gate register offset
2b) clk: samsung: exynos5250: Add MDMA0 clocks
2c) ARM: dts: exynos5250: Fix MDMA0 clock number
3) clk: samsung: exynos4: Correct SRC_MFC register
All three issues have been present since Exynos5250 and Exynos4 clock
drivers were added by commits 6e3ad26816 ("clk: exynos5250:
register clocks using common clock framework") and e062b57177
("clk: exynos4: register clocks using common clock framework")
respectively.
* Patch to fix automatic disabling of Exynos5250 sysreg clock that could
cause undefined operation of several peripherals, such as USB, I2C,
MIPI or display block.
4) clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
clock
Present since Exynos5250 clock drivers was added by commits
6e3ad26816 ("clk: exynos5250: register clocks using common clock
framework").
* Patch fixing compilation warning in clk-exynos-audss driver when
CONFIG_PM_SLEEP is disabled.
5) clk: exynos: File scope reg_save array should depend on PM_SLEEP
Present since the driver was added by commit 1241ef94cc ("clk:
samsung: register audio subsystem clocks using common clock
framework").
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Merge tag 'samsung-clk-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into clk-fixes
Samsung Clock fixes for 3.13-rc7
* Several patches fixing up incorrectly defined register addresses and
bitfield offsets that could lead to undefined operation when accessing
respective registers or bitfields.
1) clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
2a) clk: samsung: exynos5250: Fix ACP gate register offset
2b) clk: samsung: exynos5250: Add MDMA0 clocks
2c) ARM: dts: exynos5250: Fix MDMA0 clock number
3) clk: samsung: exynos4: Correct SRC_MFC register
All three issues have been present since Exynos5250 and Exynos4 clock
drivers were added by commits 6e3ad26816 ("clk: exynos5250:
register clocks using common clock framework") and e062b57177
("clk: exynos4: register clocks using common clock framework")
respectively.
* Patch to fix automatic disabling of Exynos5250 sysreg clock that could
cause undefined operation of several peripherals, such as USB, I2C,
MIPI or display block.
4) clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
clock
Present since Exynos5250 clock drivers was added by commits
6e3ad26816 ("clk: exynos5250: register clocks using common clock
framework").
* Patch fixing compilation warning in clk-exynos-audss driver when
CONFIG_PM_SLEEP is disabled.
5) clk: exynos: File scope reg_save array should depend on PM_SLEEP
Present since the driver was added by commit 1241ef94cc ("clk:
samsung: register audio subsystem clocks using common clock
framework").
Document the clock properties required by the at91 i2c bus driver.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This adds pci_enable_msi_range(), which supersedes the pci_enable_msi()
and pci_enable_msi_block() MSI interfaces.
It also adds pci_enable_msix_range(), which supersedes the
pci_enable_msix() MSI-X interface.
The old interfaces have three categories of return values:
negative: failure; caller should not retry
positive: failure; value indicates number of interrupts that *could*
have been allocated, and caller may retry with a smaller request
zero: success; at least as many interrupts allocated as requested
It is error-prone to handle these three cases correctly in drivers.
The new functions return either a negative error code or a number of
successfully allocated MSI/MSI-X interrupts, which is expected to lead to
clearer device driver code.
pci_enable_msi(), pci_enable_msi_block() and pci_enable_msix() still exist
unchanged, but are deprecated and may be removed after callers are updated.
[bhelgaas: tweak changelog]
Suggested-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
This creates an MSI-X counterpart for pci_msi_vec_count(). Device drivers
can use this function to obtain maximum number of MSI-X interrupts the
device supports and use that number in a subsequent call to
pci_enable_msix().
pci_msix_vec_count() supersedes pci_msix_table_size() and returns a
negative errno if device does not support MSI-X interrupts. After this
update, callers must always check the returned value.
The only user of pci_msix_table_size() was the PCI-Express port driver,
which is also updated by this change.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
The new pci_msi_vec_count() interface makes pci_enable_msi_block_auto()
superfluous.
Drivers can use pci_msi_vec_count() to learn the maximum number of MSIs
supported by the device, and then call pci_enable_msi_block().
pci_enable_msi_block_auto() was introduced recently, and its only user is
the AHCI driver, which is also updated by this change.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Device drivers can use this interface to obtain the maximum number of MSI
interrupts the device supports and use that number, e.g., in a subsequent
call to pci_enable_msi_block().
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
This patch adds polling mode support for i2c-s3c2410 driver.The
SATA PHY controller's CMU and TRSV block's are of I2C register
map in exynos5250.These blocks can be configured using i2c.
But i2c controller instance on which these block's sits lacks an
interrupt line.Also the current i2c-s3c2410 driver is only interrupt
driven, thus a polling mode support is required in the driver for
supporting this controller. This patch adds this support to the driver.
Signed-off-by: Vasanth Ananthan <vasanth.a@samsung.com>
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
If a reset GPIO support is specified, request the GPIO and get the chip
out of reset at probe time.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Patch "ima: extend the measurement list to include the file signature"
defined a new field called 'sig' and a new template called 'ima-sig'.
This patch updates the Documentation/security/IMA-templates.txt.
Changelog:
- fixed formatting issues (Roberto Sassu)
Reported-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Enable to fetch data from a file offset. Currently it only supports
fetching from same binary uprobe set. It'll translate the file offset
to a proper virtual address in the process.
The syntax is "@+OFFSET" as it does similar to normal memory fetching
(@ADDR) which does no address translation.
Suggested-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: zhangwei(Jovi) <jovi.zhangwei@huawei.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Enable to fetch other types of argument for the uprobes. IOW, we can
access stack, memory, deref, bitfield and retval from uprobes now.
The format for the argument types are same as kprobes (but @SYMBOL
type is not supported for uprobes), i.e:
@ADDR : Fetch memory at ADDR
$stackN : Fetch Nth entry of stack (N >= 0)
$stack : Fetch stack address
$retval : Fetch return value
+|-offs(FETCHARG) : Fetch memory at FETCHARG +|- offs address
Note that the retval only can be used with uretprobes.
Original-patch-by: Hyeoncheol Lee <cheol.lee@lge.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: zhangwei(Jovi) <jovi.zhangwei@huawei.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Hyeoncheol Lee <cheol.lee@lge.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
The uprobe syntax requires an offset after a file path not a symbol.
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: zhangwei(Jovi) <jovi.zhangwei@huawei.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested with a r7s72100 genmai board acessing an eeprom.
Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
cppcheck reports this error:
Documentation/laptops/hpfall.c:33]: (error)
Dangerous usage of 'devname' (strncpy doesn't always 0-terminate it)
The terminating '\0' is needed for the global char array unload_heads_path,
so never write the last array entry (which is initially '\0').
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add Capella Microsystem CM32181 Ambient Light Sensor IIO driver.
This driver will convert raw data to lux value under open-air
condition. Change the calibscale based on the cover material.
Signed-off-by: Kevin Tsai <ktsai@capellamicro.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Adds gate clock for MDMA0 on Exynos5250 SoC. This is needed to ensure
that the clock is enabled when MDMA0 is used on systems on which
firmware gates the clockby default.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
[t.figa: Updated patch description.]
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
kexec-tools use boot_params for getting the 1st kernel hardware_subarch,
the kexec kernel EFI runtime support also needs to read the old efi_info
from boot_params. Currently it exists in debugfs which is not a good
place for such infomation. Per HPA, we should avoid "sploit debugfs".
In this patch /sys/kernel/boot_params are exported, also the setup_data is
exported as a subdirectory. kexec-tools is using debugfs for hardware_subarch
for a long time now so we're not removing it yet.
Structure is like below:
/sys/kernel/boot_params
|__ data /* boot_params in binary*/
|__ setup_data
| |__ 0 /* the first setup_data node */
| | |__ data /* setup_data node 0 in binary*/
| | |__ type /* setup_data type of setup_data node 0, hex string */
[snip]
|__ version /* boot protocal version (in hex, "0x" prefixed)*/
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Old kexec-tools can not load new kernels. The reason is kexec-tools does
not fill efi_info in x86 setup header previously, thus EFI failed to
initialize. In new kexec-tools it will by default to fill efi_info and
pass other EFI required infomation to 2nd kernel so kexec kernel EFI
initialization can succeed finally.
To prevent from breaking userspace, add a new xloadflags bit so
kexec-tools can check the flag and switch to old logic.
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
New drivers
* HID inclinometer driver.
* DHT11 humidity driver. Note that previous humidity drivers have been in
hwmon, but no one was ever entirely happy with that, and they should find
a more comfortable home in IIO (their original placement in hwmon was my
fault - oops). As this is our first humidity driver, core support is also
added.
New features
* Two of mxs-lradc channels are internally wired to a temperature sensor,
make this explicit in the driver by providing the relevant temperature
channel.
* Add support for blocking IO on buffers.
* Add a data_available call back to the interface between buffer implementations
and the core. This is much cleaner than the old, 'stufftoread' flag.
Implemented in the kfifo buffer.
Cleanups
* Last user of the old event configuration interface is converted and the
old interface dropped. Nice to be rid of this thanks to Lars-Peter's hard
work!
* Replace all remaining instances of the IIO_ST macro with explicit filling
of the scan_type structure within struct iio_chan_spec. This macro was a
bad idea, that rapidly ceased to cover all elements of the structure.
Miss reading of the macro arguements has led to a number of bugs so lets
just get rid of it. The final removal patch is awaiting for some fixes
to make their way into mainline.
In a couple of drivers, no elements of scan_type were even being used so
in those case, it has been dropped entirely.
* Drop a couple of of_match_ptr helper uses in drivers where devicetree is
not optional and hence the structures being protected by this always exist.
* Fix up some cases where data was read from a device in a particular
byte order, but he code placed it into a s16 or similar. These were
highlighted by Sparse.
* Use the new ATTRIBUTE_GROUPS macro to drop some boiler plate in the triggers
core code.
* ad7746 and ad7280a - stop storing buffers on the stack, giving cleaner code
and possibly avoiding issues with i2c bus drivers that assume they can dma
directly into the buffer. Note that this cannot currently happen as the the
i2c_smbus_read_i2c_block_data function has a memcpy from the buffer actually
passed to the bus driver. I missed this element of the commit message
and don't think it is major enough to rebase the iio tree.
* ad5791 and ad5504 stop storing buffers on the stack for an SPI driver.
Unlike the i2c drivers, this is a real issue for SPI drivers which can dma
directly into the buffer supplied.
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Merge tag 'iio-for-3.14b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
2nd round of new IIO drivers, features and cleanups for the 3.14 cycle.
New drivers
* HID inclinometer driver.
* DHT11 humidity driver. Note that previous humidity drivers have been in
hwmon, but no one was ever entirely happy with that, and they should find
a more comfortable home in IIO (their original placement in hwmon was my
fault - oops). As this is our first humidity driver, core support is also
added.
New features
* Two of mxs-lradc channels are internally wired to a temperature sensor,
make this explicit in the driver by providing the relevant temperature
channel.
* Add support for blocking IO on buffers.
* Add a data_available call back to the interface between buffer implementations
and the core. This is much cleaner than the old, 'stufftoread' flag.
Implemented in the kfifo buffer.
Cleanups
* Last user of the old event configuration interface is converted and the
old interface dropped. Nice to be rid of this thanks to Lars-Peter's hard
work!
* Replace all remaining instances of the IIO_ST macro with explicit filling
of the scan_type structure within struct iio_chan_spec. This macro was a
bad idea, that rapidly ceased to cover all elements of the structure.
Miss reading of the macro arguements has led to a number of bugs so lets
just get rid of it. The final removal patch is awaiting for some fixes
to make their way into mainline.
In a couple of drivers, no elements of scan_type were even being used so
in those case, it has been dropped entirely.
* Drop a couple of of_match_ptr helper uses in drivers where devicetree is
not optional and hence the structures being protected by this always exist.
* Fix up some cases where data was read from a device in a particular
byte order, but he code placed it into a s16 or similar. These were
highlighted by Sparse.
* Use the new ATTRIBUTE_GROUPS macro to drop some boiler plate in the triggers
core code.
* ad7746 and ad7280a - stop storing buffers on the stack, giving cleaner code
and possibly avoiding issues with i2c bus drivers that assume they can dma
directly into the buffer. Note that this cannot currently happen as the the
i2c_smbus_read_i2c_block_data function has a memcpy from the buffer actually
passed to the bus driver. I missed this element of the commit message
and don't think it is major enough to rebase the iio tree.
* ad5791 and ad5504 stop storing buffers on the stack for an SPI driver.
Unlike the i2c drivers, this is a real issue for SPI drivers which can dma
directly into the buffer supplied.
Pull block fixes from Jens Axboe:
- fix for a memory leak on certain unplug events
- a collection of bcache fixes from Kent and Nicolas
- a few null_blk fixes and updates form Matias
- a marking of static of functions in the stec pci-e driver
* 'for-linus' of git://git.kernel.dk/linux-block:
null_blk: support submit_queues on use_per_node_hctx
null_blk: set use_per_node_hctx param to false
null_blk: corrections to documentation
null_blk: warning on ignored submit_queues param
null_blk: refactor init and init errors code paths
null_blk: documentation
null_blk: mem garbage on NUMA systems during init
drivers: block: Mark the functions as static in skd_main.c
bcache: New writeback PD controller
bcache: bugfix for race between moving_gc and bucket_invalidate
bcache: fix for gc and writeback race
bcache: bugfix - moving_gc now moves only correct buckets
bcache: fix for gc crashing when no sectors are used
bcache: Fix heap_peek() macro
bcache: Fix for can_attach_cache()
bcache: Fix dirty_data accounting
bcache: Use uninterruptible sleep in writeback
bcache: kthread don't set writeback task to INTERUPTIBLE
block: fix memory leaks on unplugging block device
bcache: fix sparse non static symbol warning
Pull libata fixes from Tejun Heo:
"There's one interseting commit - "libata, freezer: avoid block device
removal while system is frozen". It's an ugly hack working around a
deadlock condition between driver core resume and block layer device
removal paths through freezer which was made more reproducible by
writeback being converted to workqueue some releases ago. The bug has
nothing to do with libata but it's just an workaround which is easy to
backport. After discussion, Rafael and I seem to agree that we don't
really need kernel freezables - both kthread and workqueue. There are
few specific workqueues which constitute PM operations and require
freezing, which will be converted to use workqueue_set_max_active()
instead. All other kernel freezer uses are planned to be removed,
followed by the removal of kthread and workqueue freezer support,
hopefully.
Others are device-specific fixes. The most notable is the addition of
NO_NCQ_TRIM which is used to disable queued TRIM commands to Micro
M500 SSDs which otherwise suffers data corruption"
* 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata, freezer: avoid block device removal while system is frozen
libata: implement ATA_HORKAGE_NO_NCQ_TRIM and apply it to Micro M500 SSDs
libata: disable a disk via libata.force params
ahci: bail out on ICH6 before using AHCI BAR
ahci: imx: Explicitly clear IMX6Q_GPR13_SATA_MPLL_CLK_EN
libata: add ATA_HORKAGE_BROKEN_FPDMA_AA quirk for Seagate Momentus SpinPoint M8
Add devicetree binding documentation for isp1704-charger.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
This adds an UDC driver for GRUSBDC USB Device Controller cores available in the
GRLIB VHDL IP core library. The driver only supports DMA mode.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
ams AS3722 device supports the power off by turning off its all rails.
Add dt node properties to enable this functionality on this device.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
Charger-manager can parse charger_desc data from devicetree which is used
to register charger manager.
Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
Add a binding that describes the Broadcom Kona USB2 PHY found
on the BCM281xx family of SoCs.
Signed-off-by: Matt Porter <mporter@linaro.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
dwc2/s3c-hsotg require a single clock to be specified and optionally
a generic phy. On the s3c-hsotg driver old style USB phy support is
present as a fallback so the generic phy properties are optional.
Signed-off-by: Matt Porter <mporter@linaro.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'v3.13-rc5' into next
Linux 3.13-rc5
* tag 'v3.13-rc5': (231 commits)
Linux 3.13-rc5
aio: clean up and fix aio_setup_ring page mapping
aio/migratepages: make aio migrate pages sane
aio: fix kioctx leak introduced by "aio: Fix a trinity splat"
Don't set the INITRD_COMPRESS environment variable automatically
mm: fix build of split ptlock code
pstore: Don't allow high traffic options on fragile devices
mm: do not allocate page->ptl dynamically, if spinlock_t fits to long
mm: page_alloc: revert NUMA aspect of fair allocation policy
Revert "mm: page_alloc: exclude unreclaimable allocations from zone fairness policy"
mm: Fix NULL pointer dereference in madvise(MADV_WILLNEED) support
qla2xxx: Fix scsi_host leak on qlt_lport_register callback failure
target: Remove extra percpu_ref_init
arm64: ptrace: avoid using HW_BREAKPOINT_EMPTY for disabled events
ARC: Allow conditional multiple inclusion of uapi/asm/unistd.h
target/file: Update hw_max_sectors based on current block_size
iser-target: Move INIT_WORK setup into isert_create_device_ib_res
iscsi-target: Fix incorrect np->np_thread NULL assignment
mm/hugetlb: check for pte NULL pointer in __page_check_address()
fix build with make 3.80
...
Conflicts:
drivers/usb/phy/Kconfig
Add infrastructure to handle distributor and cpu interface register
accesses through the KVM_{GET/SET}_DEVICE_ATTR interface by adding the
KVM_DEV_ARM_VGIC_GRP_DIST_REGS and KVM_DEV_ARM_VGIC_GRP_CPU_REGS groups
and defining the semantics of the attr field to be the MMIO offset as
specified in the GICv2 specs.
Missing register accesses or other changes in individual register access
functions to support save/restore of the VGIC state is added in
subsequent patches.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Support setting the distributor and cpu interface base addresses in the
VM physical address space through the KVM_{SET,GET}_DEVICE_ATTR API
in addition to the ARM specific API.
This has the added benefit of being able to share more code in user
space and do things in a uniform manner.
Also deprecate the older API at the same time, but backwards
compatibility will be maintained.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Support creating the ARM VGIC device through the KVM_CREATE_DEVICE
ioctl, which can then later be leveraged to use the
KVM_{GET/SET}_DEVICE_ATTR, which is useful both for setting addresses in
a more generic API than the ARM-specific one and is useful for
save/restore of VGIC state.
Adds KVM_CAP_DEVICE_CTRL to ARM capabilities.
Note that we change the check for creating a VGIC from bailing out if
any VCPUs were created, to bailing out if any VCPUs were ever run. This
is an important distinction that shouldn't break anything, but allows
creating the VGIC after the VCPUs have been created.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
The defaults for the module is to instantiate itself with blk-mq and a
submit queue for each CPU node in the system.
To save resources, initialize instead with a single submit queue.
Signed-off-by: Matias Bjorling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Randy Dunlap reported a couple of grammar errors and unfortunate usages of
socket/node/core.
Signed-off-by: Matias Bjorling <m@bjorling.me>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
kexec kernel will need exactly same mapping for EFI runtime memory
ranges. Thus here export the runtime ranges mapping to sysfs,
kexec-tools will assemble them and pass to 2nd kernel via setup_data.
Introducing a new directory /sys/firmware/efi/runtime-map just like
/sys/firmware/memmap. Containing below attribute in each file of that
directory:
attribute num_pages phys_addr type virt_addr
Signed-off-by: Dave Young <dyoung@redhat.com>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Export fw_vendor, runtime and config table physical addresses to
/sys/firmware/efi/{fw_vendor,runtime,config_table} because kexec kernels
need them.
From EFI spec these 3 variables will be updated to virtual address after
entering virtual mode. But kernel startup code will need the physical
address.
Signed-off-by: Dave Young <dyoung@redhat.com>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
* pci/msi:
PCI/MSI: Make pci_enable_msi/msix() 'nvec' argument type as int
PCI/MSI: Return -ENOSYS for unimplemented interfaces, not -1
PCI/MSI: Return msix_capability_init() failure if populate_msi_sysfs() fails
s390/PCI: Remove superfluous check of MSI type
s390/PCI: Fix single MSI only check
PCI/MSI: Export MSI mode using attributes, not kobjects
Make pci_enable_msi_block(), pci_enable_msi_block_auto() and
pci_enable_msix() consistent with regard to the type of 'nvec' argument.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
The PCI MSI sysfs code is a mess with kobjects for things that don't really
need to be kobjects. This patch creates attributes dynamically for the MSI
interrupts instead of using kobjects.
Note, this removes a directory from sysfs. Old MSI kobjects:
pci_device
└── msi_irqs
└── 40
└── mode
New MSI attributes:
pci_device
└── msi_irqs
└── 40
As there was only one file "mode" with the kobject model, the interrupt
number is now a file that returns the "mode" of the interrupt (msi vs.
msix).
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
This fixes two spelling mistakes in the design pattern doc.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some boards do not have a PCIe reset GPIO. To avoid probe failure on these
boards, make the reset GPIO optional as well.
[bhelgaas: whitespace fixes]
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Frank Li <lznuaa@gmail.com>
Cc: Harro Haan <hrhaan@gmail.com>
Cc: Mohit KUMAR <Mohit.KUMAR@st.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Richard Zhu <r65037@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Sean Cross <xobs@kosagi.com>
Cc: Siva Reddy Kallam <siva.kallam@samsung.com>
Cc: Srikanth T Shivanand <ts.srikanth@samsung.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Troy Kisky <troy.kisky@boundarydevices.com>
Cc: Yinghai Lu <yinghai@kernel.org>
The documentation has gone out-of-sync, so update it to
the current status.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
After getting warnings in an allyesconfig build[1] from this
driver, I decided to remind myself just how old it was, and
whether it warranted fixing. In the Kconfig help text, I found:
"This driver will eventually be phased out entirely"
Going back to the history archive, I see the line was added[2]
in Feb 2002, when we moved from v2.4.2.1 ---> v2.4.2.2
So, with over a decade of notification, and multiple major releases
since then, I think we can justify removing this. Currently we have
people wasting time building it during routine testing, and then
wasting more time re-researching the known reported warnings, only to
find that nobody really is willing to integrate the fixes[3] for it.
A quick search didn't seem to indicate any active user base for it.
If someone happens to have a quirky _old_ card that the eleven year
old "new" driver doesn't work with, then it is entirely reasonable
that they stick with a kernel version that predates this removal.
[1] drivers/scsi/aic7xxx_old.c: In function ‘aic7xxx_register’:
drivers/scsi/aic7xxx_old.c:7901:5: warning: case value ‘257’ not in enumerated type ‘ahc_chip’ [-Wswitch]
drivers/scsi/aic7xxx_old.c:7898:5: warning: case value ‘513’ not in enumerated type ‘ahc_chip’ [-Wswitch]
drivers/scsi/aic7xxx_old.c: In function ‘aic7xxx_load_seeprom’:
drivers/scsi/aic7xxx_old.c:8517:5: warning: case value ‘257’ not in enumerated type ‘ahc_chip’ [-Wswitch]
drivers/scsi/aic7xxx_old.c:8510:5: warning: case value ‘513’ not in enumerated type ‘ahc_chip’ [-Wswitch]
[2] http://git.kernel.org/cgit/linux/kernel/git/tglx/history.git commit 44e8778c
[3] https://lkml.org/lkml/2012/10/29/215
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Hannes Reinecke <hare@suse.de>
Acked-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The sentence is not proper English, so the use of "general" is now replaced with
"in general". "generally" was also considered, but "in general" is probably the
correct in this case.
Signed-off-by: Laszlo Papp <lpapp@kde.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This adds omap control module support for USBSS in AM437x SoC.
Update DT binding information to reflect these changes.
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'v3.13-rc4' into next
Linux 3.13-rc4
* tag 'v3.13-rc4': (1001 commits)
Linux 3.13-rc4
null_blk: mem garbage on NUMA systems during init
radeon_pm: fix oops in hwmon_attributes_visible() and radeon_hwmon_show_temp_thresh()
Revert "selinux: consider filesystem subtype in policies"
igb: Fix for issue where values could be too high for udelay function.
i40e: fix null dereference
ARM: fix asm/memory.h build error
dm array: fix a reference counting bug in shadow_ablock
dm space map: disallow decrementing a reference count below zero
mm: memcg: do not allow task about to OOM kill to bypass the limit
mm: memcg: fix race condition between memcg teardown and swapin
thp: move preallocated PTE page table on move_huge_pmd()
mfd/rtc: s5m: fix register updating by adding regmap for RTC
rtc: s5m: enable IRQ wake during suspend
rtc: s5m: limit endless loop waiting for register update
rtc: s5m: fix unsuccesful IRQ request during probe
drivers/rtc/rtc-s5m.c: fix info->rtc assignment
include/linux/kernel.h: make might_fault() a nop for !MMU
drivers/rtc/rtc-at91rm9200.c: correct alarm over day/month wrap
procfs: also fix proc_reg_get_unmapped_area() for !MMU case
...
Signed-off-by: Felipe Balbi <balbi@ti.com>
Sysfs interfaces for the GenWQE card. There are attributes to query
the version of the bitstream as well as some for the driver. For
debugging, please also see the debugfs interfaces of this driver.
Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com>
Co-authors: Joerg-Stephan Vogt <jsvogt@de.ibm.com>,
Michael Jung <MIJUNG@de.ibm.com>,
Michael Ruettger <michael@ibmra.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Debugfs interfaces for the GenWQE card. Help to debug potential
problems. Dump internal chip state for debugging and failure
determination.
Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com>
Co-authors: Joerg-Stephan Vogt <jsvogt@de.ibm.com>,
Michael Jung <MIJUNG@de.ibm.com>,
Michael Ruettger <michael@ibmra.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Document the clock properties required by the atmel-ssc driver.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
