Firstly, there is no VC_EN bit present in the STREAM_DATA_CFG register.
Bit 31 is part of the VL_SELECT field. Remove it completely.
Secondly, it makes little sense to enable ith virtual channel for ith
stream. Sure, there might be a use-case that demands it. But there might
also be a use case that demands all streams to use the 0th virtual
channel. Prefer this case over the former because it is less arbitrary
and also makes it very clear what the limitations of the current driver
is instead of giving a false impression that multiple virtual channels
are supported.
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Tested-by: Julien Massot <julien.massot@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
The format is needed to calculate the link speed for the external DPHY
configuration. It is not right to query the format from the source
subdev. Add get_fmt and set_fmt pad operations so that the format can be
configured and correct bpp be selected.
Initialize and use the v4l2 subdev active state to keep track of the
active formats. Also propagate the new format from the sink pad to all
the source pads.
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Tested-by: Julien Massot <julien.massot@collabora.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Co-developed-by: Jai Luthra <j-luthra@ti.com>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
The notifier is added to the global notifier list when registered. When
the module is removed, the struct csi2rx_priv in which the notifier is
embedded, is destroyed. As a result the notifier list has a reference to
a notifier that no longer exists. This causes invalid memory accesses
when the list is iterated over. Similar for when the probe fails.
Unregister and clean up the notifier to avoid this.
Fixes: 1fc3b37f34 ("media: v4l: cadence: Add Cadence MIPI-CSI2 RX driver")
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Tested-by: Julien Massot <julien.massot@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
When transmitting, infrared drivers expect an odd number of samples; iow
without a trailing space. No problems have been observed so far, so
this is just belt and braces.
Fixes: 9b6192589b ("media: lirc: implement scancode sending")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This fixes two smatch warnings:
drivers/staging/media/atomisp/pci/atomisp_cmd.c:2779 atomisp_cp_dvs_6axis_config() warn: missing unwind goto?
drivers/staging/media/atomisp/pci/atomisp_cmd.c:2878 atomisp_cp_morph_table() warn: missing unwind goto?
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
CC: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
The subdev .s_stream() operation shall not be called to start streaming
on an already started subdev, or stop streaming on a stopped subdev.
Remove the check that guards against that condition.
Also fixes a smatch warning:
drivers/staging/media/atomisp/i2c/atomisp-gc0310.c:446 gc0310_s_stream() warn: missing error code 'ret'
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
CC: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
imon driver probes two USB interfaces, and at the probe of the second
interface, the driver assumes blindly that the first interface got
bound with the same imon driver. It's usually true, but it's still
possible that the first interface is bound with another driver via a
malformed descriptor. Then it may lead to a memory corruption, as
spotted by syzkaller; imon driver accesses the data from drvdata as
struct imon_context object although it's a completely different one
that was assigned by another driver.
This patch adds a sanity check -- whether the first interface is
really bound with the imon driver or not -- for avoiding the problem
above at the probe time.
Reported-by: syzbot+59875ffef5cb9c9b29e9@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000a838aa0603cc74d6@google.com/
Tested-by: Ricardo B. Marliere <ricardo@marliere.net>
Link: https://lore.kernel.org/r/20230922005152.163640-1-ricardo@marliere.net
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
When building the modules 'modpost' warns about missing MODULE_DESCRIPTION.
Since almost none of the rc keymap modules have this, it produces a lot of
warnings.
As a first step to fixing all media modules, add this line to all keymaps.
The description should be a human-readable string describing the remote
or the remote controller that the keymap can be used with.
Note that keymaps/rc-cec.c is actually compiled into the rc-core, so that
is the sole keymap source that didn't need this.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sean Young <sean@mess.org>
Split camera sensor documentation into user and kernel portions. This
should make it easier for the user space developers to find the relevant
documentation.
Also add a list of exemplary drivers and add imx219 driver to it, besides
those that were already mentioned.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Enable runtime PM before registering the async subdev as the driver UAPI
may become accessible immediately after the registration. Runtime PM needs
to be enabled by that time.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
The s_stream is called to enable and to disable streaming on a sub-device.
The caller may only call it to change the state, enabling streaming is not
allowed when it is already disabled, and similarly for disabling
streaming. Remove the check from the CCS driver.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
ccs_pm_get_init() depends on the return values > 0 of
pm_runtime_get_sync(), thus it can't use pm_runtime_resume_and_get().
There's even a comment in the driver on this, a few lines above the code.
Fixes: aa0adb399d09 ("media: i2c: Use pm_runtime_resume_and_get()")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Make use of sub-device active state. In most cases the effect on need for
acquiring the mutex is non-existent as access to the driver's core data
structure still needs to be serialised.
This still removes a lot of code as the code paths for active and try
state are the same in many cases.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
The available mbus codes will soon be needed earlier, at the time
sub-devices are initialisaed. This is due to calling init_cfg() op via the
v4l2_subdev_init_finalize().
Move ccs_get_mbus_formats() before ccs_init_subdev() calls.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
The media entity will soon need to be initialised before the sub-device
init finalisation that allocates memory for sub-device state. Do that now.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
The ccs_create_subdev() function initialises a sub-device in the CCS
driver, including CCS specific needs. Rename it as ccs_init_subdev() as it
better reflects what the function does.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Initialise the try sink compose rectangle size to the sink compose
rectangle for binner and scaler sub-devices. This was missed due to the
faulty condition that lead to the compose rectangles to be initialised for
the pixel array sub-device where it is not relevant.
Fixes: ccfc97bdb5 ("[media] smiapp: Add driver")
Cc: stable@vger.kernel.org
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fix documentation for struct ccs_quirk, a device specific struct for
managing deviations from the standard. The flags field was drifted away
from where it should have been.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Align lines for numbered list so that Sphinx produces an uniform output
for all list entries. Also indent paragraphs of such list entries for
consistency.
Also use ReST numbered list syntax for the entries.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Use the active format height instead of the mode height in
imx219_set_ctrl(). This prepares for dropping the mode field from the
imx219 structure.
The state is retrieved using v4l2_subdev_get_locked_active_state() as
the subdev active state and the control handler share the same lock.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Configure the crop-related registers from the values stored in the
active crop rectangle instead of the mode structure. This removes usage
of the mode from the imx219_set_framefmt(). No functional change is
intended.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
