SRC_ROUTE_MODE0 determines whether to use SRC.
Thus, it should be setup before SRC_SRCIR.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The channels number is not only for DVC. Let's rename it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds runtime PM support for the AHCI host controller driver so
that the host controller is powered down when all SATA ports are runtime
suspended. Powering down the AHCI host controller can reduce power
consumption and possibly allow the CPU to enter lower power idle states
(S0ix) during runtime.
Runtime PM is blocked by default and needs to be unblocked from userspace
as needed (via power/* sysfs nodes).
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add new functions ahci_rpm_get_port()/ahci_rpm_put_port() that change
runtime PM status of AHCI ports. Depending if the AHCI host has runtime PM
enabled or disabled calling these may trigger runtime suspend/resume of the
host controller.
We also call these functions in appropriate places to make sure host
controller registers are available before using them.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
In order to add support for runtime PM to the ahci driver we first need to
convert the driver to use modern non-legacy system suspend hooks. There
should be no functional changes.
tj: Updated .driver.pm init for older compilers as suggested by Andy
and Chrsitoph.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
This allows sysfs nodes to read the cached value directly instead of
powering up possibly runtime suspended controller.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Runtime PM of the SCSI host is already handled by calls to
scsi_autopm_get_host() and scsi_autopm_put_host() from appropriate places
whenever the host needs to be powered on. This works fine when there is
device connected to the host as once it runtime suspends the host will too.
However, if there is no device connected the host is never runtime
suspended (the usage counter is always 0).
Allow runtime suspend of host even if it has no devices connected by
calling scsi_autopm_put_host() at the end of scsi_add_host_with_dma(). We
temporarily increase runtime PM usage counter first so call to
scsi_autopm_put_host() will result idle request to be scheduled for the
device.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
We treat system suspend of SCSI devices pretty much the same as runtime
suspend. If the device is already runtime suspended we leave it to that
state during system suspend. On resume from system sleep we then resume the
device and correct the runtime PM status back to "active".
There is a problem with this because runtime PM status of the request queue
in question is not changed (it will be in "suspended" state). When SCSI
disk driver (sd.c) resumes the disk it sends START message to the device
and because the request queue is still in "suspended" state
blk_pm_peek_request() returns NULL preventing resume of the disk.
The issue can be reproduced with following commands:
# echo auto > /sys/block/sda/device/power/control
# echo 15000 > /sys/block/sda/device/power/autosuspend_delay_ms
[ 57.191706] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 57.380015] sd 0:0:0:0: [sda] Stopping disk
Now suspend the machine:
# rtcwake -s10 -mmem
This ends up in soft lockup because resume is not proceeding accordingly
and userspace is never restarted. Also there is nothing printed to the
console.
Fix this by forcing request queue status to "active" before the disk is
resumed.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
If block device is left runtime suspended during system suspend, resume
hook of the driver typically corrects runtime PM status of the device back
to "active" after it is resumed. However, this is not enough as queue's
runtime PM status is still "suspended". As long as it is in this state
blk_pm_peek_request() returns NULL and thus prevents new requests to be
processed.
Add new function blk_set_runtime_active() that can be used to force the
queue status back to "active" as needed.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixed timeout value can fire while transaction is ongoing. This may happen
because there are no strict requirements on SPI transaction duration.
Dynamic timeout value is generated based on SCLK and transaction size.
There is also 4 * SCLK delay between TX bursts related to HW internal CS change.
Signed-off-by: Anton Bondarenko <anton.bondarenko.sama@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Moving an SPI around doesn't require any extra work from the rest
of the stack, and specially not for MSI-generated SPIs.
It is then worth returning IRQ_SET_MASK_OK_DONE instead of
IRQ_SET_MASK_OK, and simplify the other irqchips that rely on
this behaviour (GICv2m and Marvell's ODMI controller).
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1455894029-17270-1-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
NHLT table [1] header has fields like oem_id, oem_table_id and
oem_revision. Use that to load a unique topology binary specific
to that platform
NHLT Table is documented at:
[1]: https://01.org/blogs/2016/intel-smart-sound-technology-audio-dsp
Signed-off-by: Yang A Fang <yang.a.fang@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commits adds a new irqchip driver that handles the ODMI
controller found on Marvell 7K/8K processors. The ODMI controller
provide MSI interrupt functionality to on-board peripherals, much like
the GIC-v2m.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1455888883-5127-1-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
skl_tplg_tlv_control_set does pointer maths on data but forgets that data
is not uint8_t so the maths is already scaled in the pointer type.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Lockdep warns of a potential lock inversion, i2s->lock is held numerous
times whilst we are under the substream lock (snd_pcm_stream_lock). If
we use the IRQ unsafe spin lock calls, you can also end up locking
snd_pcm_stream_lock whilst under i2s->lock (if an IRQ happens whilst we
are holding i2s->lock). This could result in deadlock.
[ 18.147001] CPU0 CPU1
[ 18.151509] ---- ----
[ 18.156022] lock(&(&pri_dai->spinlock)->rlock);
[ 18.160701] local_irq_disable();
[ 18.166622] lock(&(&substream->self_group.lock)->rlock);
[ 18.174595] lock(&(&pri_dai->spinlock)->rlock);
[ 18.181806] <Interrupt>
[ 18.184408] lock(&(&substream->self_group.lock)->rlock);
[ 18.190045]
[ 18.190045] *** DEADLOCK ***
This patch changes to using the irq safe spinlock calls, to avoid this
issue.
Fixes: ce8bcdbb61 ("ASoC: samsung: i2s: Protect more registers with a spinlock")
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
The former gives better error reporting on unhandled permission faults
(introduced by the UAO patches).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The allocation takes place in longs. Assign the size of the enum
accordingly.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit updates the ARCH_MVEBU Kconfig option introduced for
Armada 3700 to also be used for the Armada 7K and 8K platforms, by:
- Selecting the appropriate clock and irqchip drivers
- Updating the help text to mention Armada 7K and 8K
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
As we are adding support for the Armada 7K and 8K families, this
commit adds them to the Marvell documentation listing all supported
SoCs, together with references to their Product Brief, Homepage and
Device Tree files.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
The Armada 38x Functional Spec is now available (after registration
unfortunately), so add a link to it.
While at it, fix a typo in the reference to the Armada 38x product
page.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
In preparation to the introduction of other SoCs in the ARMv8 Armada
EBU family, this commit tweaks the existing description of Armada 37xx
by making the core, homepage and other informations be visible "under"
the Armada 37xx item. Indeed, the new SoCs will not share the same
core or homepage.
In addition, a link to the Product Brief is added.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
I'm still getting confused regarding which core specifically
is used in which SoC, so I've added some more detail to the
Marvell README file. I got most of this from random sources
on the internet, so it's possible that some of the information
is wrong, but most of it should be pretty obvious.
There are a few remaining points I could not find out:
* The CPU core in Orion 88F6183
* The difference (if any) between PJ4B-MP and PJ4C
* The naming of Feroceon/Jolteon/Flareon/Sheeva/Mohawk/PJ1/PJ4
is still confusing, as they tend to overlap.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[Thomas:
- move Armada SP out from the EBU family into its own "Storage"
family. This chip is indeed not part of the EBU family.
- fixed the URL for the Armada SP information, since the link of the
original patch no longer existed
- explicitly indicate that there is no support in upstream for the
Armada SP
- indent the "Core: " description for the Armada XP to be clearly
under the Armada XP category, so that it is clear it applies to
Armada XP only, and not other cores of the EBU family.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
The bpp value which is used while calulating the txbyteclkhs values
should be wrt the pixel format value. Currently bpp is coming
from pipe config to calculate txbyteclkhs. Fix it in this patch.
V2: dsi_pixel_format_bpp is used to retrieve the bpp from pixel_format
[Review: Jani]
Signed-off-by: Deepak M <m.deepak@intel.com>
Signed-off-by: Yogesh Mohan Marimuthu <yogesh.mohan.marimuthu@intel.com>
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Tested-by: Mika Kahola <mika.kahola@intel.com> # BYT
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1455203007-10850-1-git-send-email-ramalingam.c@intel.com
Although we don't expect to take alignment faults on access to normal
memory, misbehaving (i.e. buggy) user code can pass MMIO pointers into
system calls, leading to things like get_user accessing device memory.
Rather than OOPS the kernel, allow any exception fixups to run and
return something like -EFAULT back to userspace. This makes the
behaviour more consistent with userspace, even though applications with
access to device mappings can easily cause other issues if they try
hard enough.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Eun Taik Lee <eun.taik.lee@samsung.com>
[will: dropped __kprobes annotation and rewrote commit mesage]
Signed-off-by: Will Deacon <will.deacon@arm.com>
If spi_read() fails then we just returned but we missed unlocking the
mutex.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Update description for X-Gene standby GPIO controller DTS binding to
support GPIO line configuration as input, output or external IRQ pin.
Signed-off-by: Y Vo <yvo@apm.com>
Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The IP version number carries enough information to identify the exact
device instance features. Drop the related DT properties and use the IP
version instead.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Display lists contain lists of registers and associated values to be
applied atomically by the hardware. They lower the pressure on interrupt
processing delays when reprogramming the device as settings can be
prepared well in advance and queued to the hardware without waiting for
the end of the current frame.
Display list support is currently limited to the DRM pipeline.
Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add DT compatible strings for the VSP2 instances found in the R-Car Gen3
SoCs and support them in the vsp1 driver.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add two API functions named vsp1_du_atomic_begin() and
vsp1_du_atomic_flush() to signal the start and end of an atomic update.
The vsp1_du_setup_rpf() function is renamed to vsp1_du_atomic_update()
for consistency.
With this new API, the driver will reprogram all modified inputs
atomically before restarting the video stream.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Implement internal control of the VSP pipeline to be used by the DU
DRM/KMS driver when using the VSP as an internal composer handled
through DRM/KMS only.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
As the pipeline is configured internally by the driver when the
userspace API is disabled its configuration can be trusted and link
validation isn't needed.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The RPF and WPF alpha values are set through V4L2 controls and applied
when starting the video stream by a call to v4l2_ctrl_handler_setup().
As that function uses the control handler mutex it can't be called in
interrupt context, where the VSP+DU pipeline handler might need to
reconfigure the pipeline.
Set the alpha value manually in the RPF and WPF s_stream handler to
ensure that the hardware is properly configured even when controlled
without the userspace API. If the userspace API is enabled protect that
with the control lock to avoid race conditions with userspace.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The pipeline inputs array stores pointers to all RPFs contained in the
pipeline. It's currently indexed contiguously by adding RPFs in the
order they are found during graph walk. This can't easily support
dynamic addition and removal of RPFs while streaming, which will be
required for combined VSP+DU support.
Make the array indexed by RPF index instead and skip NULL elements when
iterating over RPFs.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The R-Car Gen3 SoCs include VSP instances dedicated to the DU that will
be controlled entirely by the rcar-du-drm driver through the KMS API. To
support that use case make the userspace V4L2 API optional.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Format information and the related helper function are not specific to
the V4L2 API, move them from vsp1_video.c to vsp1_pipe.c.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Not all VSP instances have a BRU on R-Car Gen3, make it optional. Set
the feature unconditionally for now, this will be fixed when adding Gen3
support.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The R-Car Gen3 family has 5-inputs BRUs, support them by making the
number of BRU inputs configurable.
As the driver assumes that the number of BRU inputs is equal to the
number of RPFs, replace the BRU_MAX_INPUTS macro with VSP1_MAX_RPF to
make the assumption apparent.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The function will be used by the DU code, move it out of vsp1_video.c.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Commit 58f896d859 ("[media] v4l: vsp1: sru: Make the intensity
controllable during streaming") refactored the stream start code and
removed the SRU CTRL0 register write by mistake. Add it back.
Fixes: 58f896d859 ("[media] v4l: vsp1: sru: Make the intensity controllable during streaming")
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Rename the VI6_DISP_IRQ_STA_DSE register bit to VI6_DISP_IRQ_STA_DST to
fix a typo and match the datasheet.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Link creation will be handled differently for the DU pipeline.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
