Having a board where the I2C bus locks up occasionally made it clear
that the bus recovery in the i2c-davinci driver will only work on
some boards, because on regular boards, this will only toggle GPIO
lines that aren't muxed to the actual pins.
The I2C controller on SoCs like da850 (and da830), Keystone 2 has the
built-in capability to bit-bang its lines by using the ICPFUNC registers
of the i2c controller.
Implement the suggested procedure by toggling SCL and checking SDA using
the ICPFUNC registers of the I2C controller when present. Allow platforms
to indicate the presence of the ICPFUNC registers with a has_pfunc platform
data flag and add optional DT property "ti,has-pfunc" to indicate
the same in DT.
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Tested-by: Michael Lawnick <michael.lawnick@nokia.com>
Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
Signed-off-by: Mike Looijmans <milo-software@users.sourceforge.net>
[grygorii.strashko@ti.com: combined patches from Ben Gardiner and
Mike Looijmans and reimplemented ICPFUNC bus recovery using I2C
bus recovery infrastructure]
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This patch changes type of input parameter for
prepare/unprepare_recovery() callbacks from struct i2c_bus_recovery_info
* to struct i2c_adapter *. This allows to simplify implementation of
these callbacks and avoid type conversations from i2c_bus_recovery_info
to i2c_adapter. The i2c_bus_recovery_info can be simply retrieved from
struct i2c_adapter which contains pointer on it. There are no users
currently, so this is safe to do.
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
The current parent, plld_out0, does not exist. The proper name is
pll_d_out0. While at it, rename the plld_dsi clock to pll_d_dsi_out to
be more consistent with other clock names.
Fixes: b270491eb9 ("clk: tegra: Define PLLD_DSI and remove dsia(b)_mux")
Signed-off-by: Thierry Reding <treding@nvidia.com>
This updated the generic SHA-512 implementation to use the
generic shared SHA-512 glue code.
It also implements a .finup hook crypto_sha512_finup() and exports
it to other modules. The import and export() functions and the
.statesize member are dropped, since the default implementation
is perfectly suitable for this module.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This updates the generic SHA-256 implementation to use the
new shared SHA-256 glue code.
It also implements a .finup hook crypto_sha256_finup() and exports
it to other modules. The import and export() functions and the
.statesize member are dropped, since the default implementation
is perfectly suitable for this module.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This updated the generic SHA-1 implementation to use the generic
shared SHA-1 glue code.
It also implements a .finup hook crypto_sha1_finup() and exports
it to other modules. The import and export() functions and the
.statesize member are dropped, since the default implementation
is perfectly suitable for this module.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
To reduce the number of copies of boilerplate code throughout
the tree, this patch implements generic glue for the SHA-512
algorithm. This allows a specific arch or hardware implementation
to only implement the special handling that it needs.
The users need to supply an implementation of
void (sha512_block_fn)(struct sha512_state *sst, u8 const *src, int blocks)
and pass it to the SHA-512 base functions. For easy casting between the
prototype above and existing block functions that take a 'u64 state[]'
as their first argument, the 'state' member of struct sha512_state is
moved to the base of the struct.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
To reduce the number of copies of boilerplate code throughout
the tree, this patch implements generic glue for the SHA-256
algorithm. This allows a specific arch or hardware implementation
to only implement the special handling that it needs.
The users need to supply an implementation of
void (sha256_block_fn)(struct sha256_state *sst, u8 const *src, int blocks)
and pass it to the SHA-256 base functions. For easy casting between the
prototype above and existing block functions that take a 'u32 state[]'
as their first argument, the 'state' member of struct sha256_state is
moved to the base of the struct.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
To reduce the number of copies of boilerplate code throughout
the tree, this patch implements generic glue for the SHA-1
algorithm. This allows a specific arch or hardware implementation
to only implement the special handling that it needs.
The users need to supply an implementation of
void (sha1_block_fn)(struct sha1_state *sst, u8 const *src, int blocks)
and pass it to the SHA-1 base functions. For easy casting between the
prototype above and existing block functions that take a 'u32 state[]'
as their first argument, the 'state' member of struct sha1_state is
moved to the base of the struct.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* pci/misc:
PCI: Read capability list as dwords, not bytes
PCI: Don't clear ASPM bits when the FADT declares it's unsupported
PCI: Clarify policy for vendor IDs in pci.txt
PCI/ACPI: Optimize device state transition delays
PCI: Export pci_find_host_bridge() for use inside PCI core
PCI: Make a shareable UUID for PCI firmware ACPI _DSM
PCI: Fix typo in Thunderbolt kernel message
The vb2: fix bytesused == 0 handling (8a75ffb) patch changed the behavior
of __fill_vb2_buffer function, so that if bytesused is 0 it is set to the
size of the buffer. However, bytesused set to 0 is used by older codec
drivers as as indication used to mark the end of stream.
To keep backward compatibility, this patch adds a flag passed to the
vb2_queue_init function - allow_zero_bytesused. If the flag is set upon
initialization of the queue, the videobuf2 keeps the value of bytesused
intact in the OUTPUT queue and passes it to the driver.
Reported-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This patch splits the io_flags member of vb2_queue into a bit field.
Instead of an enum with flags separate bit fields were introduced.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The compiler and the linker must agree on the alignment of
struct earlycon_id; empirical testing and commit 07fca0e57f
("tracing: Properly align linker defined symbols") suggests
32-byte alignment is the LCD.
Reported-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Kishon writes:
New Features
============
*) Add driver for USB PHYs on sun9i
*) Add driver for USB PHY on dm816x
*) Modified exynos5-usbdrd driver to add support for Exynos5433 SoC
Fixes
=====
*) Fix power_on/power_off failure paths in some drivers
*) Make miphy365x use generic PHY type constants
*) Fix build errors due to missing export symbols in qcom-ufs driver
*) Make all the functions return proper error values
Cleanups
========
*) use PTR_ERR_OR_ZERO to simplify code
*) use devm_kcalloc instead of devm_kzalloc with multiply
*) remove un-necessary ifdef CONFIG_OF
Felipe writes:
usb: generic resume timeout for v4.1
This part 2 pull request contains only the patches
which make sure everybody on linux uses the same
resume timeout value.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Adding drm helper function to return plane pointer from index where
index is a returned by drm_plane_index.
v2:
-avoided nested loop by adding loop count (Daniel)
v3:
-updated patch header prefix to 'drm' (Matt)
v4:
-fixed a kerneldoc issue (kbuild-internal)
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Sometimes userspace wants a true overlay that is never clipped. In such
cases, we need to disable the destination colorkey. However, it is
currently unconditionally enabled in the overlay with no means of
disabling. So rectify that by always default to on, and extending the
UPDATE_ATTR ioctl to support explicit disabling of the colorkey.
This is contrast to the spite code which requires explicit enabling of
either the destination or source colorkey. Handling source colorkey is
still todo for the overlay. (Of course it may be worth migrating overlay
to sprite before then.)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pull power management and ACPI fixes from Rafael Wysocki:
"These are stable-candidate fixes of some recently reported issues in
the cpufreq core, cpuidle core, the ACPI cpuidle driver and the
hibernate core.
Specifics:
- Revert a 3.17 hibernate commit that was supposed to fix an issue
related to e820 reserved regions, but broke resume from hibernation
on Lenovo x230 (Rafael J Wysocki).
- Prevent the ACPI cpuidle driver from overwriting the name and
description of the C0 state set by the core when the list of
C-states changes (Thomas Schlichter).
- Remove the no longer needed state_count field from struct
cpuidle_device which prevents the list of C-states shown by the
sysfs interface from becoming incorrect when the current number of
them is different from the number of C-states on boot (Bartlomiej
Zolnierkiewicz).
- The cpufreq core updates the policy object of the only online CPU
during system resume to make it reflect the current hardware state,
but it always assumes that CPU to be CPU0 which need not be the
case, so fix the code to avoid that assumption (Viresh Kumar)"
* tag 'pm+acpi-4.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "PM / hibernate: avoid unsafe pages in e820 reserved regions"
cpuidle: ACPI: do not overwrite name and description of C0
cpuidle: remove state_count field from struct cpuidle_device
cpufreq: Schedule work for the first-online CPU on resume
Johan Hedberg says:
====================
pull request: bluetooth-next 2015-04-09
We've had enough new patches during the past week (especially from
Marcel) that it'd be good to still get these queued for 4.1.
The majority of the changes are from Marcel with lots of cleanup &
refactoring patches for the HCI UART driver. Marcel also split out some
Broadcom & Intel vendor specific functionality into two new btintel &
btbcm modules.
In addition to the HCI driver changes there's the completion of our
local OOB data interface for pairing, added support for requesting
remote LE features when connecting, as well as a couple of minor fixes
for mac802154.
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Casting to void and adding the size of the request is "shit code" and
only a "crazy monkey on crack" would write that. So lets clean it up.
Signed-off-by: Jens Axboe <axboe@fb.com>
* pm-sleep:
Revert "PM / hibernate: avoid unsafe pages in e820 reserved regions"
* pm-cpufreq:
cpufreq: Schedule work for the first-online CPU on resume
* pm-cpuidle:
cpuidle: ACPI: do not overwrite name and description of C0
cpuidle: remove state_count field from struct cpuidle_device
Communications with a hardware vendor confirm that the expected behaviour
on systems that set the FADT ASPM disable bit but which still grant full
PCIe control is for the OS to leave any BIOS configuration intact and
refuse to touch the ASPM bits. This mimics the behaviour of Windows.
Signed-off-by: Matthew Garrett <mjg59@coreos.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following patchset contains Netfilter updates for your net-next tree.
They are:
* nf_tables set timeout infrastructure from Patrick Mchardy.
1) Add support for set timeout support.
2) Add support for set element timeouts using the new set extension
infrastructure.
4) Add garbage collection helper functions to get rid of stale elements.
Elements are accumulated in a batch that are asynchronously released
via RCU when the batch is full.
5) Add garbage collection synchronization helpers. This introduces a new
element busy bit to address concurrent access from the netlink API and the
garbage collector.
5) Add timeout support for the nft_hash set implementation. The garbage
collector peridically checks for stale elements from the workqueue.
* iptables/nftables cgroup fixes:
6) Ignore non full-socket objects from the input path, otherwise cgroup
match may crash, from Daniel Borkmann.
7) Fix cgroup in nf_tables.
8) Save some cycles from xt_socket by skipping packet header parsing when
skb->sk is already set because of early demux. Also from Daniel.
* br_netfilter updates from Florian Westphal.
9) Save frag_max_size and restore it from the forward path too.
10) Use a per-cpu area to restore the original source MAC address when traffic
is DNAT'ed.
11) Add helper functions to access physical devices.
12) Use these new physdev helper function from xt_physdev.
13) Add another nf_bridge_info_get() helper function to fetch the br_netfilter
state information.
14) Annotate original layer 2 protocol number in nf_bridge info, instead of
using kludgy flags.
15) Also annotate the pkttype mangling when the packet travels back and forth
from the IP to the bridge layer, instead of using a flag.
* More nf_tables set enhancement from Patrick:
16) Fix possible usage of set variant that doesn't support timeouts.
17) Avoid spurious "set is full" errors from Netlink API when there are pending
stale elements scheduled to be released.
18) Restrict loop checks to set maps.
19) Add support for dynamic set updates from the packet path.
20) Add support to store optional user data (eg. comments) per set element.
BTW, I have also pulled net-next into nf-next to anticipate the conflict
resolution between your okfn() signature changes and Florian's br_netfilter
updates.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Netlink attribute for the power is s8. But for the driver level
operations we are collection power level value into integer.
It has to be change to s8 from int.
Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This is needed to support lazily umounting locked mounts. Because the
entire unmounted subtree needs to stay together until there are no
users with references to any part of the subtree.
To support this guarantee that the fs_pin m_list and s_list nodes
are initialized by initializing them in init_fs_pin allowing
for the possibility that pin_insert_group does not touch them.
Further use hlist_del_init in pin_remove so that there is
a hlist_unhashed test before the list we attempt to update
the previous list item.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Failing to register the debugfs entries is not fatal and will not affect
normal operation of the sound card. Don't abort the card registration if
soc_dpcm_debugfs_add() fails.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
The RTC on S2MPS11 is the same as S2MPS14. However interrupt numbers of
RTC alarms 0 and 1 were inversed between these two devices. So when
rtc-s5m driver requested S2MPS14_IRQ_RTCA0 interrupt, it matched to
S2MPS11_IRQ_RTCA1, not RTCA0.
Fix this by using consistent RTC alarm interrupt numbers and adding a
BUILD_BUG_ON for future generations.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The dw_mmc driver changes to make the IO accesors endian agnostic did not
take into account the fifo accesses do not need to be swapped. To fix this
add a mmci_fifo_read/write wrapper to allow these to be passed through the
IO without being swapped.
Since these are now specific functions, it would be easier just to store
the pointer to the fifo registers in the host block instead of the offset
to them. So change the host->data_offset to host->fifo_reg (which also
means we catch all the places this is read or written).
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
When establishing a Bluetooth LE connection, read the remote used
features mask to determine which features are supported. This was
not really needed with Bluetooth 4.0, but since Bluetooth 4.1 and
also 4.2 have introduced new optional features, this becomes more
important.
This works the same as with BR/EDR where the connection enters the
BT_CONFIG stage and hci_connect_cfm call is delayed until the remote
features have been retrieved. Only after successfully receiving the
remote features, the connection enters the BT_CONNECTED state.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
trivial conflict in net/socket.c and non-trivial one in crypto -
that one had evaded aio_complete() removal.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Merge misc fixes from Andrew Morton:
"Three fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm: numa: disable change protection for vma(VM_HUGETLB)
include/linux/dmapool.h: declare struct device
mm: move zone lock to a different cache line than order-0 free page lists
There is a number of cases where a kernel subsystem may want to
introspect the state of an interrupt at the irqchip level:
- When a peripheral is shared between virtual machines,
its interrupt state becomes part of the guest's state,
and must be switched accordingly. KVM on arm/arm64 requires
this for its guest-visible timer
- Some GPIO controllers seem to require peeking into the
interrupt controller they are connected to to report
their internal state
This seem to be a pattern that is common enough for the core code
to try and support this without too many horrible hacks. Introduce
a pair of accessors (irq_get_irqchip_state/irq_set_irqchip_state)
to retrieve the bits that can be of interest to another subsystem:
pending, active, and masked.
- irq_get_irqchip_state returns the state of the interrupt according
to a parameter set to IRQCHIP_STATE_PENDING, IRQCHIP_STATE_ACTIVE,
IRQCHIP_STATE_MASKED or IRQCHIP_STATE_LINE_LEVEL.
- irq_set_irqchip_state similarly sets the state of the interrupt.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Tested-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Phong Vo <pvo@apm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Tin Huynh <tnhuynh@apm.com>
Cc: Y Vo <yvo@apm.com>
Cc: Toan Le <toanle@apm.com>
Cc: Bjorn Andersson <bjorn@kryo.se>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: http://lkml.kernel.org/r/1426676484-21812-2-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The PCI "ACPI additions for FW latency optimizations" ECN (link below)
defines two functions in the PCI _DSM:
Function 8, "Reset Delay," applies to the entire hierarchy below a PCI
host bridge. If it returns one, the OS may assume that all devices in
the hierarchy have already completed power-on reset delays.
Function 9, "Device Readiness Durations," applies only to the object
where it is located. It returns delay durations required after various
events if the device requires less time than the spec requires. Delays
from this function take precedence over the Reset Delay function.
Add support for Reset Delay and part of Device Readiness Durations.
[bhelgaas: changelog, comments]
Link: https://www.pcisig.com/specifications/conventional/pci_firmware/ECN_fw_latency_optimization_final.pdf
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
