Instead of duplicating part of the cleanups needed in case of an error
in .probe callback, have a single error path and use goto labels as is
common practice in the kernel.
This also has the nice side effect that the cleanup operations are made
in the inverse order of their counterparts, which was not the case for
the mwifiex_add_card() error path.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
There's only a check if mwifiex_add_card() returned a nonzero value, but
the actual error code is neither stored nor propagated to the caller. So
instead of always returning -1 (which is -EPERM and not a suitable errno
code in this case), propagate the value returned by mwifiex_add_card().
Patch also removes the assignment of sdio_disable_func() returned value
since it was overwritten anyways and what matters is to know the error
value returned by the first function that failed.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
If the sdio_enable_func() function fails on .probe, the -EIO errno code
is always returned but that could make more difficult to debug and find
the cause of why the function actually failed.
Since the driver/device core prints the value returned by .probe in its
error message propagate what was returned by sdio_enable_func() at fail.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
SDIO is an auto enumerable bus so the SDIO devices are matched using the
sdio_device_id table and not using compatible strings from a OF id table.
However, commit ce4f6f0c35 ("mwifiex: add platform specific wakeup
interrupt support") allowed to match nodes defined as child of the SDIO
host controller in the probe function using a compatible string to setup
platform specific parameters in the DT.
The problem is that the OF parse function is always called regardless if
the SDIO dev has an OF node associated or not, and prints an error if it
is not found. So, on a platform that doesn't have a node for a SDIO dev,
the following misleading error message will be printed:
[ 12.480042] mwifiex_sdio mmc2:0001:1: sdio platform data not available
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This is helpful for debugging. Without this all I was getting from "iw"
command on failed creating of P2P interface was:
> command failed: Too many open files in system (-23)
Signed-off-by: Rafal Milecki <zajec5@gmail.com>
[arend@broadcom.com: reduce error prints upon iface creation]
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
When the support for the Marvell crypto engine was added in the Device
Tree of the various Armada 385 Device Tree files in commit
d716f2e837 ("ARM: mvebu: define crypto SRAM ranges for all armada-38x
boards"), a typo was made in the MBus window attributes for the Armada
385 Linksys board: 0x09/0x05 are used instead of 0x19/0x15. This commit
fixes this typo, which makes the CESA engines operational on Armada 385
Linksys boards.
Reported-by: Terry Stockert <stockert@inkblotadmirer.me>
Cc: Terry Stockert <stockert@inkblotadmirer.me>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: <stable@vger.kernel.org>
Fixes: d716f2e837 ("ARM: mvebu: define crypto SRAM ranges for all armada-38x boards")
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
In order for HW I/O coherency to work on Cortex-A9 based Marvell SoCs,
all MMIO registers must be mapped strongly ordered. In commit
1c8c3cf0b5 ("ARM: 8060/1: mm: allow sub-architectures to override PCI
I/O memory type") we implemented a new function,
pci_ioremap_set_mem_type(), that allow sub-architecture code to override
the memory type used to map PCI I/O regions.
In the discussion around this patch series [1], Arnd Bergmann made the
comment that maybe all PCI I/O regions should be mapped
strongly-ordered, which would have made our proposal to add
pci_ioremap_set_mem_type() irrelevant. So, we submitted a patch [2] that
did what Arnd suggested.
However, Russell in the end merged our initial proposal to add
pci_ioremap_set_mem_type(), but it was never used anywhere. Further
discussion with Arnd and other folks on IRC lead to the conclusion that
in fact using strongly-ordered for all platforms was maybe not
desirable, and therefore, using pci_ioremap_set_mem_type() was the most
appropriate solution.
As a consequence, this commit finally adds the
pci_ioremap_set_mem_type() call in the mach-mvebu platform code, which
was originally part of our initial patch series [3] and is necessary for
the whole mechanism to work.
[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-May/256565.html
[2] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-May/256755.html
[3] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-May/256563.html
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
ath.git fixes for 4.7. Major changes:
ath9k
* fix GPIO mask regression with AR9462 and AR9565
ath10k
* fix deadlock while processing rx_in_ord_ind
* fix crash related to printing firmware features in debug mode
* fix deadlock when peer cannot be created
Sebastian pointed out that .../bindings/reset is usually used for
peripheral reset controllers, whereas .../bindings/power/reset is
used for Board/System reset controllers.
Reported-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Chris Brand <chris.brand@broadcom.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
path_b_ok is being assigned but immediately after path_a_ok is being
compared to the value 0x03. This appears to be a typo on the
variable name, compare path_b_ok instead.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Until now, our understanding for HW I/O coherency to work on the
Cortex-A9 based Marvell SoC was that only the PCIe regions should be
mapped strongly-ordered. However, we were still encountering some
deadlocks, especially when testing the CESA crypto engine. After
checking with the HW designers, it was concluded that all the MMIO
registers should be mapped as strongly ordered for the HW I/O coherency
mechanism to work properly.
This fixes some easy to reproduce deadlocks with the CESA crypto engine
driver (dmcrypt on a sufficiently large disk partition).
Tested-by: Terry Stockert <stockert@inkblotadmirer.me>
Tested-by: Romain Perier <romain.perier@free-electrons.com>
Cc: Terry Stockert <stockert@inkblotadmirer.me>
Cc: Romain Perier <romain.perier@free-electrons.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Add an optional ddc-i2c-bus phandle property that points to
an I2C master controller that handles the connector DDC pins.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
MT8173 HDMI hardware has a output control bit to enable/disable HDMI
output. Because of security reason, so this bit can ONLY be controlled
in ARM supervisor mode. Now the only way to enter ARM supervisor is the
ARM trusted firmware. So atf provides a API for HDMI driver to call to
setup this HDMI control bit to enable HDMI output in supervisor mode.
Signed-off-by: Jie Qiu <jie.qiu@mediatek.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This patch adds drivers for the HDMI bridge connected to the DPI0
display subsystem function block, for the HDMI DDC block, and for
the HDMI PHY to support HDMI output.
This includes an interface to the generic hdmi-codec driver to start
or stop audio playback and to retrieve ELD (EDID like data) to limit the
supported audio formats to the HDMI sink capabilities.
Signed-off-by: Jie Qiu <jie.qiu@mediatek.com>
Signed-off-by: Junzhi Zhao <junzhi.zhao@mediatek.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This bug leads to:
[ 1.906411] Unable to handle kernel NULL pointer dereference at virtual address 0000000c
[ 1.914878] pgd = c0004000
[ 1.917786] [0000000c] *pgd=00000000
[ 1.921536] Internal error: Oops: 5 [#1] SMP ARM
[ 1.926357] Modules linked in:
[ 1.929556] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 4.4.5 #18
[ 1.936006] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 1.942383] Workqueue: events power_supply_changed_work
[ 1.947842] task: de2c41c0 ti: de2c8000 task.ti: de2c8000
[ 1.953483] PC is at tps65217_ac_get_property+0x14/0x28
[ 1.958937] LR is at tps65217_ac_get_property+0x10/0x28
Driver was trying to use drv_data in property get handler. However drv_data
was not set, so it caused NULL pointer dereference. This patch properly
sets drv_data during probe by power_supply_config parameter, so the
property get handler works as desired.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Fixes: 3636859b28 ("power_supply: Add support for tps65217-charger")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
dev_pm_opp_get_sharing_cpus() returns 0 even in the case when the OPP
core doesn't know whether or not the table is shared. It works on the
majority of platforms, where the OPP table is never created before
invoking the function and then -ENODEV is returned by it.
But in the case of one platform (Jetson TK1) at least, the situation
is a bit different. The OPP table has been created (somehow) before
dev_pm_opp_get_sharing_cpus() is called and it returns 0. Its caller
treats that as 'the CPUs don't share OPPs' and that leads to degraded
performance.
Fix this by converting 'shared_opp' in struct opp_table to an enum
and making dev_pm_opp_get_sharing_cpus() return -EINVAL in case when
the value of that field is "access unknown", so that the caller can
handle it accordingly (cpufreq-dt considers that as 'all CPUs share
the table', for example).
Fixes: 6f707daa38 "PM / OPP: Add dev_pm_opp_get_sharing_cpus()"
Reported-and-tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[ rjw : Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Not all subsystems/drivers that manages devices attached to a genpd
makes use of the pm_runtime_force_suspend|resume() helper functions
to deal with system PM suspend/resume.
In cases like these and when genpd's ->stop|start() callbacks are
used for the device, invoke the pm_runtime_force_suspend|resume()
helper functions from genpd's "noirq" system PM callbacks. In this
way we make sure to "stop" the device on suspend and to "start" it
on resume.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In cases when a PM domain isn't powered off when genpd's ->prepare()
callback is invoked, genpd runtime resumes and disables runtime PM for the
device. This behaviour was needed when genpd managed intermediate states
during the power off sequence, as to maintain proper low power states of
devices during system PM suspend/resume.
Commit ba2bbfbf63 (PM / Domains: Remove intermediate states from the
power off sequence), enables genpd to improve its behaviour in that
respect.
The PM core disables runtime PM at __device_suspend_late() before it calls
a system PM "late" callback for a device. When resuming a device, after a
corresponding "early" callback has been invoked, the PM core re-enables
runtime PM.
By changing genpd to allow runtime PM according to the same system PM
phases as the PM core, devices can be runtime resumed by their
corresponding subsystem/driver when really needed.
In this way, genpd no longer need to runtime resume the device from its
->prepare() callback. In most cases that avoids unnecessary and energy-
wasting operations of runtime resuming devices that have nothing to do,
only to runtime suspend them shortly after.
Although, because of changing this behaviour in genpd and due to that
genpd powers on the PM domain unconditionally in the system PM resume
"noirq" phase, it could potentially cause a PM domain to stay powered
on even if it's unused after the system has resumed. To avoid this,
schedule a power off work when genpd's system PM ->complete() callback
has been invoked for the last device in the PM domain.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
If the runtime PM status of the device isn't RPM_SUSPENDED, prevent the
pm_runtime_force_resume() from invoking the ->runtime_resume() callback
for the device, as it's not the expected behaviour from the subsystem/driver.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The PM core increases the runtime PM usage count at the system PM prepare
phase. Later when the system resumes, it does a pm_runtime_put() in the
complete phase, which in addition to decrementing the usage count, does
the equivalent of a pm_request_idle().
Therefore the call to pm_request_idle() from within genpd's ->complete()
callback is redundant, so remove it.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
On bare-metal, when a device is attached to the cxl card, lsvpd shows
a location code such as (with cxlflash):
# lsvpd -l sg22
...
*YL U78CB.001.WZS0073-P1-C33-B0-T0-L0
which makes it hard to easily identify the cxl adapter owning the
flash device, since in this example C33 refers to a P8 processor.
lsvpd looks in the parent devices until it finds a location code, so the
device node for the vPHB ends up being used.
By reusing the device node of the adapter for the vPHB, lsvpd shows:
# lsvpd -l sg16
...
*YL U78C9.001.WZS09XA-P1-C7-B1-T0-L3
where C7 is the PCI slot of the cxl adapter.
On powerVM, the vPHB was already using the adapter device node, so
there's no change there.
Tested by cxlflash on bare-metal and powerVM.
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This adds support for using CAPP DMA mode, which is required for XSL
based cards such as the Mellanox CX4 to function.
This is currently an RFC as it depends on the corresponding support to
be merged into skiboot first, which was submitted here:
http://patchwork.ozlabs.org/patch/625582/
In the event that the skiboot on the system does not have the above
support, it will indicate as such in the kernel log and abort the init
process.
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The XSL (Translation Service Layer) is a stripped down version of the
PSL (Power Service Layer) used in some cards such as the Mellanox CX4.
Like the PSL, it implements the CAIA architecture, but has a number of
differences, mostly in it's implementation dependent registers. This
adds an ops structure to abstract these differences to bring initial
support for XSL CAPI devices.
The XSL does not implement the optional architected SERR register,
however while it treats it as a reserved register and should work with
no special treatment, attempting to access it will cause the XSL_FEC
(First Error Capture) register to be filled out, preventing it from
capturing any subsequent errors. Therefore, this patch also prevents the
kernel from trying to set up the SERR register so that the FEC register
may still be useful, and to save one interrupt.
The XSL also uses a special DMA cxl mode, which uses a slightly
different init sequence for the CAPP and PHB. The kernel support for
this will be in a future patch once the corresponding support has been
merged into skiboot.
Co-authored-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In the kernel API, it is possible to attempt to allocate AFU interrupts
after already starting a context. Since the process element structure
used by the hardware is only filled out at the time the context is
started, it will not be updated with the interrupt numbers that have
just been allocated and therefore AFU interrupts will not work unless
they were allocated prior to starting the context.
This can present some difficulties as each CAPI enabled PCI device in
the kernel API has a default context, which may need to be started very
early to enable translations, potentially before interrupts can easily
be set up.
This patch makes the API more flexible to allow interrupts to be
allocated after a context has already been started and takes care of
updating the PE structure used by the hardware and notifying it to
discard any cached copy it may have.
The update is currently performed via a terminate/remove/add sequence.
This is necessary on some hardware such as the XSL that does not
properly support the update LLCMD.
Note that this is only supported on powernv at present - attempting to
perform this ordering on PowerVM will raise a warning.
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Due to the previous changes in genpd, which removed the suspend_power_off
flag, several of the system PM callbacks no longer do any additional
checks but only invoke corresponding pm_generic_* helper functions.
To clean up the code, drop these wrapper functions as they have
become redundant. Instead, assign the system PM callbacks directly
to the pm_generic_*() helper functions.
While changing this, it has bocame clear that some of the current
system PM callbacks in genpd invoke wrong driver callbacks. For
example, the genpd's ->restore() callback invokes pm_generic_resume(),
while that should be pm_generic_restore(). Fix that as well.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
If a PM domain is powered off when the first device starts its system PM
prepare phase, genpd prevents any further attempts to power on the PM
domain during the following system PM phases. Not until the system PM
complete phase is finalized for all devices in the PM domain, genpd again
allows it to be powered on.
This behaviour needs to be changed, as a subsystem/driver for a device in
the same PM domain may still need to be able to serve requests in some of
the system PM phases. Accordingly, it may need to runtime resume its
device and thus also request the corresponding PM domain to be powered on.
To deal with these scenarios, let's make the device operational in the
system PM prepare phase by runtime resuming it, no matter if the PM domain
is powered on or off. Changing this also enables us to remove genpd's
suspend_power_off flag, as it's being used to track this condition.
Additionally, we must allow the PM domain to be powered on via runtime PM
during the system PM phases.
This change also requires a fix in the AMD ACP (Audio CoProcessor) drm
driver. It registers a genpd to model the ACP as a PM domain, but
unfortunately it's also abuses genpd's "internal" suspend_power_off flag
to deal with a corner case at system PM resume.
More precisely, the so called SMU block powers on the ACP at system PM
resume, unconditionally if it's being used or not. This may lead to that
genpd's internal status of the power state, may not correctly reflect the
power state of the HW after a system PM resume.
Because of changing the behaviour of genpd, by runtime resuming devices in
the prepare phase, the AMD ACP drm driver no longer have to deal with this
corner case. So let's just drop the related code in this driver.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Make a couple more variables static. Found by sparse.
Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Reviewed-by: fbarrat@linux.vnet.ibm.com
Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Sparse complains that it doesn't know what REG_BYTE is:
arch/powerpc/kernel/align.c:313:29: error: undefined identifier 'REG_BYTE'
REG_BYTE is defined differently based on whether we're compiling for
LE, BE32 or BE64. Sparse apparently doesn't provide __BIG_ENDIAN__ or
__LITTLE_ENDIAN__, which means we get no definition.
Rather than check for __BIG_ENDIAN__ and then separately for
__LITTLE_ENDIAN__, just switch the #ifdef to check for __BIG_ENDIAN__
and then #else we define the little endian version. Technically that's
dicey because PDP_ENDIAN is also a possibility, but we already do it in
a lot of places so one more hardly matters.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Sometimes headers that provide prototypes for functions are
accidentally omitted from the files that define the functions.
Fix a couple of times that occurs.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Sparse picked up a number of functions that are implemented in C and
then only referred to in asm code.
This introduces asm-prototypes.h, which provides a place for
prototypes of these functions.
This silences some sparse warnings.
Signed-off-by: Daniel Axtens <dja@axtens.net>
[mpe: Add include guards, clean up copyright & GPL text]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The rockchip drm driver started using drm_gem_cma_vm_ops, but that might
not be part of the kernel, causing the link to fail:
drivers/gpu/built-in.o:(.data+0xb234): undefined reference to `drm_gem_cma_vm_ops'
This adds a Kconfig 'select' statement to enable it like the other
user do.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 80f67cd80a ("drm/rockchip: Use cma gem vm ops")
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160616122800.1174015-1-arnd@arndb.de
Note that I didn't start garbage collecting all the legacy flip code
yet, to make it easier to revert this. But there will be _lots_ of
code that can be removed once this is tested on all platforms.
v2: Use __maybe_unused (Maarten).
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465827229-1704-5-git-send-email-daniel.vetter@ffwll.ch
Currently it's part of prepare_fb, still in the first phase of
atomic_commit which might fail. Which means that we need to have some
heuristics in cleanup_fb to figure out whether things failed, or
whether we just clean up the old fbs.
That's fragile, and worse, once we start pipelining commits gets
confused: While the last commit is still getting cleanup up we already
hammer in the new one, and fb_bits aren't refcounted, resulting in
lost bits and WARN_ON galore. We could instead try to make cleanup_fb
more clever, but a simpler fix is to postpone the fb_bits tracking
past the point of no return, where we commit all the software state.
That also makes conceptually more sense, since fb_bits must be updated
synchronously from the ioctl (they track usage from userspace pov, not
from the hw pov), right before we're fully committed to the updated.
This fixes WARNING splats from track_fb with page_flip implemented
through atomic_commit.
Testcase: igt/kms_flip/flip-vs-rmfb
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465827229-1704-4-git-send-email-daniel.vetter@ffwll.ch
Simply split intel_atomic_commit in half and place the new
nonblocking commit helpers at the right spots.
NOTE: There's still trouble with obj->frontbuffer bits getting mangled
when pipelining atomic commits.
v2:
- Remove the check for nonblocking which returned -EINVAL.
- Do wait for requests in the worker thread before committing
hw state.
v3: Move hw_done after the optimize_wm/post_plane_update step, plus
add FIXME comment how to fix that up again properly.
v4: Update FIXME for intel_atomic_commit - more stuff works now.
v5: Still reject nonblocking modeset commits (Maarten).
v6: Use intel_state->modeset (Maarten).
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465920060-6388-1-git-send-email-daniel.vetter@ffwll.ch
This is part of what atomic must implement. And it's also required
to be able to use the helper nonblocking support.
v2: Always send out the drm event, remove the planes_changed check.
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465827229-1704-1-git-send-email-daniel.vetter@ffwll.ch
This is just a smattering of things picked up by sparse that should
be made static.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Backmerge drm-next to get at the nonblocking atomic helpers, needed to
merge the i915 conversion.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Two parameters were documented with a wrong name, and a struct
device pointer description was missing.
That caused the following warnings, when building documentation:
include/media/media-devnode.h:102: warning: No description found for parameter 'media_dev'
include/media/media-devnode.h:126: warning: No description found for parameter 'mdev'
include/media/media-devnode.h:126: warning: Excess function parameter 'media_dev' description in 'media_devnode_register'
Rename the description, to match the function parameter and fix
Documentation.
No funcional changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
drivers/media/platform/rcar-vin/rcar-core.c: In function 'rvin_graph_notify_complete':
drivers/media/platform/rcar-vin/rcar-core.c:65:22: warning: variable 'sd' set but not used [-Wunused-but-set-variable]
struct v4l2_subdev *sd;
^
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
A V4L2 driver for Renesas R-Car VIN driver that do not depend on
soc_camera. The driver is heavily based on its predecessor and aims to
replace it.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
When a buffer is being dequeued using VIDIOC_DQBUF IOCTL, the exact buffer
which will be dequeued is not known until the buffer has been removed from
the queue. The number of planes is specific to a buffer, not to the queue.
This does lead to the situation where multi-plane buffers may be requested
and queued with n planes, but VIDIOC_DQBUF IOCTL may be passed an argument
struct with fewer planes.
__fill_v4l2_buffer() however uses the number of planes from the dequeued
videobuf2 buffer, overwriting kernel memory (the m.planes array allocated
in video_usercopy() in v4l2-ioctl.c) if the user provided fewer
planes than the dequeued buffer had. Oops!
Fixes: b0e0e1f83d ("[media] media: videobuf2: Prepare to divide videobuf2")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org # for v4.4 and later
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
An earlier patch fixing an input validation issue introduced another
issue: vb2_core_dqbuf() is called with pb argument value NULL in some
cases, causing a NULL pointer dereference. Fix this by skipping the
verification as there's nothing to verify.
Fixes: e7e0c3e265 ("[media] videobuf2-core: Check user space planes array in dqbuf")
Signed-off-by: David R <david@unsolicited.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org # for v4.4 and later
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The kirkwood-pm.c was missing the include of kirkwood-pm.h to
define the kirkwood_pm_init() function. However once this is
included, the types do not match.
Fixup the include, and then the prototype to avoid the following
warning:
arch/arm/mach-mvebu/kirkwood-pm.c:69:12: warning: symbol 'kirkwood_pm_init' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
gcc reports a theoretical case for returning uninitialized data in
the kfifo when a GPIO interrupt happens and neither
GPIOEVENT_REQUEST_RISING_EDGE nor GPIOEVENT_REQUEST_FALLING_EDGE
are set:
drivers/gpio/gpiolib.c: In function 'lineevent_irq_thread':
drivers/gpio/gpiolib.c:683:87: error: 'ge.id' may be used uninitialized in this function [-Werror=maybe-uninitialized]
This case should not happen, but to be on the safe side, let's
return from the irq handler without adding data to the FIFO
to ensure we can never leak stack data to user space.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 61f922db72 ("gpio: userspace ABI for reading GPIO line events")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The kirkwood_disable_mbus_error_propagation is not exported or declared
elsewhere, so make it static to avoid the following warning:
arch/arm/mach-mvebu/kirkwood.c:153:6: warning: symbol 'kirkwood_disable_mbus_error_propagation' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
The orion5x_legacy_handle_irq() is not used or declared outside
of irq.c so make it static to avoid the following warning:
arch/arm/mach-orion5x/irq.c:30:23: warning: symbol 'orion5x_legacy_handle_irq' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Fix the warning that coherency_base is not defined by adding
it to coherency.h (it is only used in the coherency_ll.S):
arch/arm/mach-mvebu/coherency.c:41:14: warning: symbol 'coherency_base' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
