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Limbo is not an accurate representation of this state and is
also not consistent with the terminology that other drivers
use to represent this concept. Rename the state and and its
associated waitq to 'reset'.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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During an EEH freeze event, certain CXL services should not be
called until after the hardware reset has taken place. Doing so
can result in unnecessary failures and possibly cause other ill
effects by triggering hardware accesses. This translates to a
requirement to quiesce all threads that may potentially use CXL
runtime service during this window. In particular, multiple ioctls
make use of the CXL services when acting on contexts on behalf of
the user. Thus, it is essential to 'drain' running ioctls _before_
proceeding with handling the EEH freeze event.
Create the ability to drain ioctls by wrapping the ioctl handler
call in a read semaphore and then implementing a small routine that
obtains the write semaphore, effectively creating a wait point for
all currently executing ioctls.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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The context encode mask covers more than 32-bits, making it
a long integer. This should be noted by appending the ULL
width suffix to the mask.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Using sizeof(bool) is considered poor form for various reasons and
sparse warns us of that. Correct by changing type from bool to u8.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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If the same virtual LUN is accessed over multiple cards, only accesses
made over the first card will be valid. Accesses made over the second
card will go to the wrong LUN causing data corruption.
This is because the global LUN's mode word was being used to determine
whether the LUN table for that card needs to be programmed. The mode
word would be setup by the first card, causing the LUN table for the
second card to not be programmed.
By unconditionally initializing the LUN table (not depending on the
mode word), the problem is avoided.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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When a LUN is removed, the sdev that is associated with the LUN
remains intact until its reference count drops to 0. In order
to prevent an sdev from being removed while a context is still
associated with it, obtain an additional reference per-context
for each LUN attached to the context.
This resolves a potential Oops in the release handler when a
dealing with a LUN that has already been removed.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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The timeout value for read capacity is too small. Certain devices
may take longer to respond and thus the command may prematurely
timeout. Additionally the literal used for the timeout is stale.
Update the timeout to 30 seconds (matches the value used in sd.c)
and rework the timeout literal to a more appropriate description.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Magic numbers are not meaningful and can create confusion. As a
remedy, replace them with descriptive literals.
Replace 512 with literal MAX_SECTOR_UNIT.
Replace 5 with literal CMD_RETRIES.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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If two concurrent MANAGE_LUN ioctls are issued with the same
WWID parameter, it would result in an incorrect value of port_sel.
This is because port_sel is modified without any locks being
held. If the first caller stalls after the return from
find_and_create_lun(), the value of port_sel will be set
incorrectly to indicate a single port, though in this case
it should have been set to both ports.
To fix, use the global mutex to serialize the lookup of the
WWID and the subsequent modification of port_sel.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Just move the remaining users to fence_put/get.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Stop using the driver internal functions.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Instead of coding the check ourself.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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v2: add missing NULL check.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Going to need that elsewhere as well.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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No need to duplicate the functionality any more.
v2: fix handling if no fence is available.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
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amdgpu_fence_default_wait isn't needed any more the default wait does the same
thing and amdgpu_test_signaled is dead as well.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Return true when fence 1 is later than fence 2 without
checking if any of them are signaled.
Useful for driver specific resource handling based on fences.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Waiting for the first fence in an array of fences to signal.
This is useful for device driver specific resource managers
and also Vulkan needs something similar.
v2: more parameter checks, handling for timeout==0,
remove NULL entry support, better callback removal.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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Jiri Pirko says:
====================
mlxsw: driver update
This driver update mainly brings support for user to be able to setup
flooding on specified port, via bridge flag. Also, there is a fix in ageing
time conversion. The rest is just cosmetics.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix a place where checkpatch complains that braces should be used
on all arms of this statement.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fixes those places where checkpatch complains that comparisons
should place the constant on the right side of the test.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The value passed through switchdev attr set is not in jiffies, but in
clock_t, so fix the convert.
Reported-by: Sagi Rotem <sagir@mellanox.com>
Fixes: 56ade8fe3f ("mlxsw: spectrum: Add initial support for Spectrum ASIC")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix copy-paste errors.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The original description was for LAG, so fix it.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add or remove a bridged port from the flooding domain of unknown unicast
packets according to user configuration.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When enabling a range of VLANs on a bridged port we can configure
flooding for these VLANs by one register access instead of calling the
same register for each VLAN. This is accomplished by using the 'range'
field of the Switch Flooding Table Register (SFTR).
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It is a flag anyway, so move it to existing u8 flag and don't waste mem.
Fix the flags to be in single u8 on the way.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In certain use cases it is not always desirable for the switch device to
flood traffic to CPU port. Instead, only certain packet types (e.g.
STP, LACP) should be trapped to it.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allow devices supporting this feature to control the flooding of unknown
unicast traffic, by making switchdev infrastructure propagate this setting
to the switch driver.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Iyappan Subramanian says:
====================
drivers: xgene: Add support RGMII TX/RX delay configuration
X-Gene RGMII ethernet controller has a RGMII bridge that performs the
task of converting the RGMII signal {RX_CLK,RX_CTL, RX_DATA[3:0]} from
PHY to GMII signal {RX_DV,RX_ER,RX_DATA[7:0]} and vice versa. This
RGMII bridge has a provision to internally delay the input RX_CLK and
the output TX_CLK using configuration registers. This will help in
maintain the CLK-CTL delay relationship in various operating
conditions.
This patch adds support RGMII TX/RX delay configuration.
====================
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add RGMII TX/RX delay configuration support. RGMII standard requires 2ns
delay to help the RGMII bridge receiver to sample data correctly. If the
default value does not provide proper centering of the data sample, the
TX/RX delay parameters can be used to adjust accordingly.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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hashtable
Problem Description:
We can add fdbs pointing to the bridge with NULL ->dst but that has a
few race conditions because br_fdb_insert() is used which first creates
the fdb and then, after the fdb has been published/linked, sets
"is_local" to 1 and in that time frame if a packet arrives for that fdb
it may see it as non-local and either do a NULL ptr dereference in
br_forward() or attach the fdb to the port where it arrived, and later
br_fdb_insert() will make it local thus getting a wrong fdb entry.
Call chain br_handle_frame_finish() -> br_forward():
But in br_handle_frame_finish() in order to call br_forward() the dst
should not be local i.e. skb != NULL, whenever the dst is
found to be local skb is set to NULL so we can't forward it,
and here comes the problem since it's running only
with RCU when forwarding packets it can see the entry before "is_local"
is set to 1 and actually try to dereference NULL.
The main issue is that if someone sends a packet to the switch while
it's adding the entry which points to the bridge device, it may
dereference NULL ptr. This is needed now after we can add fdbs
pointing to the bridge. This poses a problem for
br_fdb_update() as well, while someone's adding a bridge fdb, but
before it has is_local == 1, it might get moved to a port if it comes
as a source mac and then it may get its "is_local" set to 1
This patch changes fdb_create to take is_local and is_static as
arguments to set these values in the fdb entry before it is added to the
hash. Also adds null check for port in br_forward.
Fixes: 3741873b4f73 ("bridge: allow adding of fdb entries pointing to the bridge device")
Reported-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Other callers of udp_tunnel6_xmit_skb just pass 0 for the prio
argument. Jesse Gross <jesse@nicira.com> suggested that prio is really
the same as IPv4's tos and should be handled the same, so this is my
interpretation of that suggestion.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reported-by: Jesse Gross <jesse@nicira.com>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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NOTE: Link-local IPv6 addresses for remote endpoints are not supported,
since the driver currently has no capacity for binding a geneve
interface to a specific link.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Extend the pxa2xx_spi_acpi_get_pdata() so that it can create platform data
also on platforms that do not support ACPI or if CONFIG_ACPI is not set.
Now it is expected that "pxa2xx-spi" platform device is either created with
explicit platform data or has an ACPI companion device.
However there is only little in pxa2xx_spi_acpi_get_pdata() that is really
dependent on ACPI companion and it can be reworked to cover also cases
where "pxa2xx-spi" device doesn't have ACPI companion and is created
without platform data.
Do this by renaming the pxa2xx_spi_acpi_get_pdata(), moving it outside of
CONFIG_ACPI test and changing a few runtime tests there to support non-ACPI
case. Only port/bus ID setting based on ACPI _UID is dependent on ACPI and
is moved to own function inside CONFIG_ACPI.
Purpose of this to support non-ACPI case for those PCI enumerated compound
devices that integrate both LPSS SPI host controller and integrated DMA
engine under the same PCI ID and which are registered in MFD layer instead
of in spi-pxa2xx-pci.c.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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LPSS SPI in Intel Broxton is otherwise the same than in Intel Sunrisepoint
but it supports up to four chip selects per port and has different FIFO
thresholds. Patch adds support for two Broxton SoC variants.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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SPI capabilities register located in private registers space of newer
Intel LPSS SPI host controllers tell in register bits 12:9 which chip
select signals are enabled.
Use that information for detecting the number of chip selects. For
simplicity we assume chip selects are enabled one after another without
disabled chip selects between. For instance CS0 | CS1 | CS2 but not
CS0 | CS1 | CS3.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Intel LPSS SPI host controllers in upcoming Intel platforms can have up
to 4 chip selects per port. Extend chip select control in
lpss_ssp_cs_control() by adding a code that selects the active chip
select output prior to changing the state. Detection for number of
enabled chip select signals will be added by another patch.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Rename a few defines that are specific to Intel LPSS SPI private
registers with LPSS prefix. It makes easier to distinguish them from
common defines.
Suggested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Commit bfebd1cdb497a57757c83f5fbf1a29931591e2a4 ("dm: add full blk-mq
support to request-based DM") moves the initialization of the fields
backing_dev_info.congested_fn, backing_dev_info.congested_data and
queuedata from the function dm_init_md_queue (that is called when the
device is created) to dm_init_old_md_queue (that is called after the
device type is determined).
There is no locking when accessing these variables, thus it is possible
for other parts of the kernel to briefly see this data in a transient
state (e.g. queue->backing_dev_info.congested_fn initialized and
md->queue->backing_dev_info.congested_data uninitialized, resulting in
passing an incorrect parameter to the function dm_any_congested).
This queue data is left initialized for blk-mq devices even though they
that don't use it.
Fixes: bfebd1cdb497 ("dm: add full blk-mq support to request-based DM")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # v4.1+
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LS1043a and LS2080A in the Layerscape family also support DSPI, make
DSPI selectable for these hardwares.
Signed-off-by: Yuan Yao <yao.yuan@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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there's no need to call pm_runtime_get_sync()
followed by pm_runtime_put(). We should, instead,
just call pm_runtime_put_sync() and pm_runtime_disable().
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://anongit.freedesktop.org/drm-intel into drm-next
Few more drm-misc stragglers for 4.4. Big thing is the generic probe for
imx/rockchip/armada (but the variant for msm/rpi/exynos is still missing).
Also the hdmi clocking fixes from Ville which was a lot of confusion about
which tree it should be applied to ;-)
* tag 'topic/drm-misc-2015-10-22' of git://anongit.freedesktop.org/drm-intel:
drm: correctly check failed allocation
vga_switcheroo: Constify vga_switcheroo_handler
drm/armada: Convert the probe function to the generic drm_of_component_probe()
drm/rockchip: Convert the probe function to the generic drm_of_component_probe()
drm/imx: Convert the probe function to the generic drm_of_component_probe()
drm: Introduce generic probe function for component based masters.
drm/edid: Round to closest when computing the CEA/HDMI alternate clock
drm/edid: Fix up clock for CEA/HDMI modes specified via detailed timings
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into drm-next
More amdgpu and radeon stuff for drm-next. Stoney support is the big change.
The rest is just bug fixes and code cleanups. The Stoney stuff is pretty
low impact with respect to existing chips.
* 'drm-next-4.4' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu: change VM size default to 64GB
drm/amdgpu: add Stoney pci ids
drm/amdgpu: update the core VI support for Stoney
drm/amdgpu: add VCE support for Stoney (v2)
drm/amdgpu: add UVD support for Stoney
drm/amdgpu: add GFX support for Stoney (v2)
drm/amdgpu: add SDMA support for Stoney (v2)
drm/amdgpu: add DCE support for Stoney
drm/amdgpu: Update SMC/DPM for Stoney
drm/amdgpu: add GMC support for Stoney
drm/amdgpu: add Stoney chip family
drm/amdgpu: fix the broken vm->mutex V2
drm/amdgpu: remove the unnecessary parameter adev for amdgpu_fence_wait_any()
drm/amdgpu: remove the exclusive lock
drm/amdgpu: remove old lockup detection infrastructure
drm: fix trivial typos
drm/amdgpu/dce: simplify suspend/resume
drm/amdgpu/gfx8: set TC_WB_ACTION_EN in RELEASE_MEM packet
drm/radeon: Use rdev->gem.mutex to protect hyperz/cmask owners
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git://anongit.freedesktop.org/drm-intel into drm-next
Bunch of -fixes for 4.4. Well not just, I've left the mmio/register work
from Ville in here since it's low-risk but lots of churn all over.
* tag 'drm-intel-next-fixes-2015-10-22' of git://anongit.freedesktop.org/drm-intel: (23 commits)
drm/i915: Use round to closest when computing the CEA 1.001 pixel clocks
drm/i915: Kill the leftover RMW from ivb_sprite_disable()
drm/i915: restore ggtt double-bind avoidance
drm/i915/skl: Enable pipe gamma for sprite planes.
drm/i915/skl+: Enable pipe CSC on cursor planes. (v2)
MAINTAINERS: add link to the Intel Graphics for Linux web site
drm/i915: Move skl/bxt gt specific workarounds to ring init
drm/i915: Drop i915_gem_obj_is_pinned() from set-cache-level
drm/i915: revert a few more watermark commits
drm/i915: Remove dev_priv argument from NEEDS_FORCE_WAKE
drm/i915: Clean up LVDS register handling
drm/i915: Throw out some useless variables
drm/i915: Parametrize and fix SWF registers
drm/i915: s/PIPE_FRMCOUNT_GM45/PIPE_FRMCOUNT_G4X/ etc.
drm/i915: Turn GEN5_ASSERT_IIR_IS_ZERO() into a function
drm/i915: Fix a few bad hex numbers in register defines
drm/i915: Protect register macro arguments
drm/i915: Include gpio_mmio_base in GMBUS reg defines
drm/i915: Parametrize HSW video DIP data registers
drm/i915: Eliminate weird parameter inversion from BXT PPS registers
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into drm-fixes
regression fix for backlight on old laptops.
* 'drm-fixes-4.3' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix dpms when driver backlight control is disabled
drm/radeon: move bl encoder assignment into bl init
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