Commit Graph

1089620 Commits

Author SHA1 Message Date
Zheyu Ma
02276e18de media: i2c: dw9714: Disable the regulator when the driver fails to probe
When the driver fails to probe, we will get the following splat:

[   59.305988] ------------[ cut here ]------------
[   59.306417] WARNING: CPU: 2 PID: 395 at drivers/regulator/core.c:2257 _regulator_put+0x3ec/0x4e0
[   59.310345] RIP: 0010:_regulator_put+0x3ec/0x4e0
[   59.318362] Call Trace:
[   59.318582]  <TASK>
[   59.318765]  regulator_put+0x1f/0x30
[   59.319058]  devres_release_group+0x319/0x3d0
[   59.319420]  i2c_device_probe+0x766/0x940

Fix this by disabling the regulator in error handling.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:26:18 +01:00
Tom Rix
4d19e0662f media: i2c: cleanup comments
For spdx, remove leading space

Replacements
parametrize to parameterize

Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:25:51 +01:00
Julia Lawall
ab0589af58 media: i2c: ov5695: fix typos in comments
Various spelling mistakes in comments.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:25:26 +01:00
Moses Christopher Bollavarapu
378a0e4ba8 media: ov7640: Use ARRAY_SIZE instead of manual checking
Currently, the driver ends the reg-val list with a 0xFF as a check to stop
the loop. Instead an array of reg-vals can be used to avoid this check,
by using the ARRAY_SIZE(arr) macro to obtain the length of the array and
iterate over it.

Signed-off-by: Moses Christopher Bollavarapu <mosescb.dev@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:25:08 +01:00
Sakari Ailus
7dd0f93a31 media: Revert "media: dw9768: activate runtime PM and turn off device"
This reverts commit c09d776eaa.

Revert the commit as it breaks runtime PM support on OF based systems.
More fixes to the driver are needed.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:24:43 +01:00
Tomi Valkeinen
660440a907 media: Documentation: add documentation about subdev state
Add documentation about centrally managed subdev state.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:24:07 +01:00
Tomi Valkeinen
14a6fca77a media: subdev: add v4l2_subdev_get_fmt() helper function
Add v4l2_subdev_get_fmt() helper function which implements
v4l2_subdev_pad_ops.get_fmt using active state. Subdev drivers that
support active state and do not need to do anything special in their
get_fmt op can use this helper directly for v4l2_subdev_pad_ops.get_fmt.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:23:23 +01:00
Tomi Valkeinen
b2ac238724 media: subdev: add locking wrappers to subdev op wrappers
It is common that media drivers call subdev ops in source subdevs, and
pass NULL as the state. This was the way to indicate that the callee
should use the callee's private active state.

E.g.:

v4l2_subdev_call(priv->source_sd, pad, get_fmt, NULL, &sd_fmt);

Now that we have a real subdev active state in the v4l2_subdev struct,
we want the caller to pass a proper state (when available). And
furthermore, the state should be locked.

This would mean changing all the callers, which is the long term goal.

To fix this issue in the short term, let's add an extra wrapper layer to
all v4l2_subdev_call_pad_wrappers which deal with states. These wrappers
handle the state == NULL case by using the locked active state instead
(when available).

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:22:42 +01:00
Tomi Valkeinen
ed647ea668 media: subdev: add subdev state locking
The V4L2 subdevs have managed without centralized locking for the state
(previously pad_config), as the try-state is supposedly safe (although I
believe two TRY ioctls for the same fd would race), and the
active-state, and its locking, is managed by the drivers internally.

We now have active-state in a centralized position, and need locking.
Strictly speaking the locking is only needed for new drivers that use
the new state, as the current drivers continue behaving as they used to.

However, active-state locking is complicated by the fact that currently
the real active-state of a subdev is split into multiple parts: the new
v4l2_subdev_state, subdev control state, and subdev's internal state.

In the future all these three states should be combined into one state
(the v4l2_subdev_state), and then a single lock for the state should be
sufficient.

But to solve the current split-state situation we need to share locks
between the three states. This is accomplished by using the same lock
management as the control handler does: we use a pointer to a mutex,
allowing the driver to override the default mutex. Thus the driver can
do e.g.:

sd->state_lock = sd->ctrl_handler->lock;

before calling v4l2_subdev_init_finalize(), resulting in sharing the
same lock between the states and the controls.

The locking model for active-state is such that any subdev op that gets
the state as a parameter expects the state to be already locked by the
caller, and expects the caller to release the lock.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:21:45 +01:00
Tomi Valkeinen
3cc7a4bbc3 media: subdev: pass also the active state to subdevs from ioctls
At the moment when a subdev op is called, the TRY subdev state
(subdev_fh->state) is passed as a parameter even for the ACTIVE case, or
alternatively a NULL can be passed for ACTIVE case. This used to make
sense, as the ACTIVE state was handled internally by the subdev drivers.

We now have a state for the ACTIVE case in a standard place, and can
pass that also to the drivers. This patch changes the subdev ioctls to
either pass the TRY or ACTIVE state to the subdev.

Unfortunately many drivers call ops from other subdevs, and implicitly
pass NULL as the state, so this is just a partial solution. A coccinelle
spatch could perhaps be created which fixes the drivers' subdev calls.

For all current upstream drivers this doesn't matter, as they do not
expect to get a valid state for ACTIVE case. But future drivers which
support multiplexed streaming and routing will depend on getting a state
for both active and try cases.

For new drivers we can mandate that the pipelines where the drivers are
used need to pass the state properly, or preferably, not call such
subdev ops at all.

However, if an existing subdev driver is changed to support multiplexed
streams, the driver has to consider cases where its ops will be called
with NULL state. The problem can easily be solved by using the
v4l2_subdev_lock_and_get_active_state() helper, introduced in a follow
up patch.

Another follow up patch adds wrappers for pad ops dealing with subdev
state, which automate the use of
v4l2_subdev_lock_and_get_active_state() for cases where the state is
NULL.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:18:44 +01:00
Tomi Valkeinen
2f91838c3b media: subdev: rename v4l2_subdev_get_pad_* helpers
The subdev state is now used for both try and active cases. Rename
rename v4l2_subdev_get_try_* helpers to v4l2_subdev_get_pad_*.

Temporary wapper helper macros are added to keep the drivers using
v4l2_subdev_get_try_* compiling. The next step is to change the uses
in th drivers, and then drop the helpers.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:17:48 +01:00
Tomi Valkeinen
f69952a4dc media: subdev: add active state to struct v4l2_subdev
Add a new 'active_state' field to struct v4l2_subdev to which we can
store the active state of a subdev. This will place the subdev
configuration into a known place, allowing us to use the state directly
from the v4l2 framework, thus simplifying the drivers.

Also add functions v4l2_subdev_init_finalize() and
v4l2_subdev_cleanup(), which will allocate and free the active state.
The functions are named in a generic way so that they can be also used
for other subdev initialization work.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:17:24 +01:00
Tomi Valkeinen
40aaab9d77 media: subdev: rename subdev-state alloc & free
v4l2_subdev_alloc_state() and v4l2_subdev_free_state() are not supposed
to be used by the drivers. However, we do have a few drivers that use
those at the moment, so we need to expose these functions for the time
being.

Prefix the functions with __ to mark the functions as internal.

At the same time, rename them to v4l2_subdev_state_alloc and
v4l2_subdev_state_free to match the style used for other functions like
video_device_alloc() and media_request_alloc().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:16:20 +01:00
Tomi Valkeinen
e550c37092 media: v4l2-subdev: drop extra #ifdef
subdev_open() is inside #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API, which
depends on CONFIG_MEDIA_CONTROLLER, so there's no need for an extra

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:15:23 +01:00
Tomi Valkeinen
dadd47d468 media: v4l2-subdev: fix #endif comments
Add comments after #endifs to clarify their scope.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:14:54 +01:00
Jacopo Mondi
ba449bb562 media: i2c: ov5645: Fix media bus format
The ov5645 driver reports as its unique supported format
MEDIA_BUS_FMT_UYVY8_2X8, which is not correct as the sensor
uses the MIPI CSI-2 serial bus.

Fix that by using MEDIA_BUS_FMT_UYVY8_1X16 instead.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:14:38 +01:00
Hangyu Hua
282b4d2607 media: mc: delete redundant code in __media_device_unregister_entity
media_gobj_destroy has already set graph_obj.mdev to NULL. There is no
need to set it again.

[Sakari Ailus: Remove extra newline, rewrap commit msg]

Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:14:19 +01:00
Umang Jain
dbdc7237ec media: staging/intel-ipu3: Cleanup dummy buffers via helper
Use an existing helper imgu_video_nodes_exit() on imgu-video-node
initialization failure path to cleanup dummy buffers.

Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:13:57 +01:00
Umang Jain
1ad037645a media: staging/intel-ipu3: Reset imgu_video_device sequence
Reset the sequence number of imgu_video_device on stream start.
Failing to do so results in sequence number getting incremented
for consecutive stream on/off cycles.

Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:13:35 +01:00
Laurent Pinchart
1f391df446 media: v4l2-async: Use endpoints in __v4l2_async_nf_add_fwnode_remote()
Matching on device fwnode handles is deprecated in favour of endpoint
fwnode handles. Switch the __v4l2_async_nf_add_fwnode_remote() function
to use the latter. The match code handles backward compatibility by
falling by to the device fwnode handle, so this shouldn't introduce any
regression.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:13:07 +01:00
Sakari Ailus
229fac6c44 media: staging: media: ipu3-imgu: Request specific firmware binary
Primarily request a specific revision of the IPU3 firmware that the driver
is known to work with,
irci_irci_ecr-master_20161208_0213_20170112_1500.bin. Some distros only
ship this while others provide a symlink called ipu3-fw.bin, which the
driver only requested previously.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:12:48 +01:00
Kate Hsuan
2425c81fc4 media: staging: media: ipu3: Fix AF x_start position when rightmost stripe is used
For the AF configuration, if the rightmost stripe is used, the AF scene
will be at the incorrect location of the sensor.

The AF coordinate may be set to the right part of the sensor. This
configuration would lead to x_start being greater than the
down_scaled_stripes offset and the leftmost stripe would be disabled
and only the rightmost stripe is used to control the AF coordinate. If
the x_start doesn't perform any adjustments, the AF coordinate will be
at the wrong place of the sensor since down_scaled_stripes offset
would be the new zero of the coordinate system.

In this patch, if only the rightmost stripe is used, x_start should
minus down_scaled_stripes offset to maintain its correctness of AF
scene coordinate.

Signed-off-by: Kate Hsuan <hpa@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:11:44 +01:00
Laurentiu Palcu
365ab7ebc2 media: i2c: max9286: fix kernel oops when removing module
When removing the max9286 module we get a kernel oops:

Unable to handle kernel paging request at virtual address 000000aa00000094
Mem abort info:
  ESR = 0x96000004
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x04: level 0 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000004
  CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000880d85000
[000000aa00000094] pgd=0000000000000000, p4d=0000000000000000
Internal error: Oops: 96000004 [#1] PREEMPT SMP
Modules linked in: fsl_jr_uio caam_jr rng_core libdes caamkeyblob_desc caamhash_desc caamalg_desc crypto_engine max9271 authenc crct10dif_ce mxc_jpeg_encdec
CPU: 2 PID: 713 Comm: rmmod Tainted: G         C        5.15.5-00057-gaebcd29c8ed7-dirty #5
Hardware name: Freescale i.MX8QXP MEK (DT)
pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : i2c_mux_del_adapters+0x24/0xf0
lr : max9286_remove+0x28/0xd0 [max9286]
sp : ffff800013a9bbf0
x29: ffff800013a9bbf0 x28: ffff00080b6da940 x27: 0000000000000000
x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000
x23: ffff000801a5b970 x22: ffff0008048b0890 x21: ffff800009297000
x20: ffff0008048b0f70 x19: 000000aa00000064 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
x14: 0000000000000014 x13: 0000000000000000 x12: ffff000802da49e8
x11: ffff000802051918 x10: ffff000802da4920 x9 : ffff000800030098
x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : fefefeff6364626d
x5 : 8080808000000000 x4 : 0000000000000000 x3 : 0000000000000000
x2 : ffffffffffffffff x1 : ffff00080b6da940 x0 : 0000000000000000
Call trace:
 i2c_mux_del_adapters+0x24/0xf0
 max9286_remove+0x28/0xd0 [max9286]
 i2c_device_remove+0x40/0x110
 __device_release_driver+0x188/0x234
 driver_detach+0xc4/0x150
 bus_remove_driver+0x60/0xe0
 driver_unregister+0x34/0x64
 i2c_del_driver+0x58/0xa0
 max9286_i2c_driver_exit+0x1c/0x490 [max9286]
 __arm64_sys_delete_module+0x194/0x260
 invoke_syscall+0x48/0x114
 el0_svc_common.constprop.0+0xd4/0xfc
 do_el0_svc+0x2c/0x94
 el0_svc+0x28/0x80
 el0t_64_sync_handler+0xa8/0x130
 el0t_64_sync+0x1a0/0x1a4

The Oops happens because the I2C client data does not point to
max9286_priv anymore but to v4l2_subdev. The change happened in
max9286_init() which calls v4l2_i2c_subdev_init() later on...

Besides fixing the max9286_remove() function, remove the call to
i2c_set_clientdata() in max9286_probe(), to avoid confusion, and make
the necessary changes to max9286_init() so that it doesn't have to use
i2c_get_clientdata() in order to fetch the pointer to priv.

Fixes: 66d8c9d242 ("media: i2c: Add MAX9286 driver")
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:11:21 +01:00
Sakari Ailus
f2d8b6917f media: v4l: ioctl: Set bus_info in v4l_querycap()
The bus_info field is set by most drivers based on the type of the device
bus as well as the name of the device. Do this in v4l_querycap() so
drivers don't need to. This keeps compatibility with non-default and silly
bus_info.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:07:08 +01:00
Sakari Ailus
cef699749f media: mc: Set bus_info in media_device_init()
Set bus_info field based on struct device in media_device_init() and
remove corresponding code from drivers.

Also update media_device_init() documentation: the dev field must be now
initialised before calling it.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:05:53 +01:00
Sakari Ailus
78a171e587 media: mc: Provide a helper for setting bus_info field
The bus_info or a similar field exists in a lot of structs, yet drivers
tend to set the value of that field by themselves in a determinable way.
Thus provide a helper for doing this. To be used in subsequent patches.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:04:27 +01:00
Sakari Ailus
db1fa290a3 media: mc: media_device_init() initialises a media_device, not media_entity
The documentation for media_device_init() had several references to
(struct) media_entity where it should have referred to struct media_device
instead. Fix this.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:02:06 +01:00
Sakari Ailus
a8a2bd1001 media: mc: Remove redundant documentation
Remove redundant kerneldoc documentation in mc-device.c. The functions are
already documented in media-device.h, where non-redundant documentation is
also moved.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:01:38 +01:00
Sakari Ailus
8b4b08b7ea media: ccs: Use unsigned int as index to an array
Use an unsigned int to index an array instead of a signed one.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:01:06 +01:00
Sakari Ailus
63bd19442f media: ccs: Use %u for printing unsigned values, remove extra debug print
Use %u for printing unsigned integer or u32 values. In a lot of cases %d
was being used instead.

Also remove an extra debug print --- the number of lanes is already
printed by V4L2 when parsing fwnode endpoints when dynamic debug is
enabled.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 08:00:33 +01:00
Daniel Scally
aa4faf6eb2 media: v4l2-async: Create links during v4l2_async_match_notify()
Upon an async fwnode match, there's some typical behaviour that the
notifier and matching subdev will want to do. For example, a notifier
representing a sensor matching to an async subdev representing its
VCM will want to create an ancillary link to expose that relationship
to userspace.

To avoid lots of code in individual drivers, try to build these links
within v4l2 core.

Signed-off-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:59:47 +01:00
Daniel Scally
012c87f769 media: entity: Add support for ancillary links
Add functions to create ancillary links, so that they don't need to
be manually created by users.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:59:09 +01:00
Daniel Scally
9d0c23bfe7 media: entity: Add link_type_name() helper
Now we have three types of media link, printing the right name during
debug output is slightly more complicated. Add a helper function to
make it easier.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:58:44 +01:00
Daniel Scally
4e4dab4bb6 media: media.h: Add new media link type
To describe in the kernel the connection between devices and their
supporting peripherals (for example, a camera sensor and the vcm
driving the focusing lens for it), add a new type of media link
to introduce the concept of these ancillary links.

Add some elements to the uAPI documentation to explain the new link
type, their purpose and some aspects of their current implementation.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:58:16 +01:00
Daniel Scally
af3ed78ecb media: entity: Skip non-data links in graph iteration
When iterating over the media graph, don't follow links that are not
data links.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:57:21 +01:00
Yunke Cao
6008dea1c7 media: entity: skip non-data link when removing reverse links
The original implementation removes reverse links for any input link and
assumes the presense of sink/source.
It fails when the link is a not a data link.
media_entity_remove_links when there's an ancillary link can also fail.

We only need to remove reverse links for a data link.

Signed-off-by: Yunke Cao <yunkec@google.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:56:44 +01:00
Jacopo Mondi
d8fdfc66cf media: imx: imx-mipi-csis: Add support for JPEG_1X8
Add support for MEDIA_BUS_FMT_JPEG_1X8 media bus code to the
CSIS driver.

The MEDIA_BUS_FMT_JPEG_1X8 code is mapped to the RAW8 CSI-2 Data Type,
while the CSI-2 specification suggests to use User Defined Data Type 1.

As reported in the comment, the CSIS interface captures arbitrary Data
Types by using a pixel sampling mode not supported by the IP core
connected to it on i.MX SoCs.

As some sensors, such as OV5640, support sending JPEG data on the RAW8
Data Type and capture operations work correcty with such configuration,
map MEDIA_BUS_FMT_JPEG_1X8 to Data Type 0x2a.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:51:23 +01:00
Hans Verkuil
f1b5716430 media: cec: add optional adap_configured callback
This new optional callback is called when the adapter is fully configured
or fully unconfigured. Some drivers may have to take action when this
happens.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:41:35 +01:00
Hans Verkuil
dad272bd03 media: cec: add xfer_timeout_ms field
Allow drivers to change the transmit timeout value, i.e. after how
long should a transmit be considered 'lost', i.e. the corresponding
cec_transmit_done_ts was never called.

Some CEC devices have their own timeout, and so this timeout value must be
longer than that hardware timeout value. If it is shorter then the
framework would consider the transmit lost, even though it is effectively
still in progress at the hardware level.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:41:06 +01:00
Hans Verkuil
e2ed5024ac media: cec: use call_op and check for !unregistered
Use call_(void_)op consistently in the CEC core framework. Ditto
for the cec pin ops. And check if !adap->devnode.unregistered before
calling each op. This avoids calls to ops when the device has been
unregistered and the underlying hardware may be gone.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:40:42 +01:00
Hans Verkuil
567f882a40 media: cec.h: add cec_msg_recv_is_rx/tx_result helpers
These two helper functions return true if the received message
contains the result of a previous non-blocking transmit. Either
the tx_status result (cec_msg_recv_is_tx_result) of the transmit,
or the rx_status result (cec_msg_recv_is_rx_result) of the reply
to the original transmit.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:40:13 +01:00
Hans Verkuil
f9d0ecbf56 media: cec: correctly pass on reply results
The results of non-blocking transmits were not correctly communicated
to userspace.

Specifically:

1) if a non-blocking transmit was canceled, then rx_status wasn't set to 0
   as it should.
2) if the non-blocking transmit succeeded, but the corresponding reply
   never arrived (aborted or timed out), then tx_status wasn't set to 0
   as it should, and rx_status was hardcoded to ABORTED instead of the
   actual reason, such as TIMEOUT. In addition, adap->ops->received() was
   never called, so drivers that want to do message processing themselves
   would not be informed of the failed reply.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:39:43 +01:00
Hans Verkuil
590a8e564c media: cec: abort if the current transmit was canceled
If a transmit-in-progress was canceled, then, once the transmit
is done, mark it as aborted and refrain from retrying the transmit.

To signal this situation the new transmit_in_progress_aborted field is
set to true.

The old implementation would just set adap->transmitting to NULL and
set adap->transmit_in_progress to false, but on the hardware level
the transmit was still ongoing. However, the framework would think
the transmit was aborted, and if a new transmit was issued, then
it could overwrite the HW buffer containing the old transmit with the
new transmit, leading to garbled data on the CEC bus.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:38:19 +01:00
Hans Verkuil
3813c932ed media: cec: call enable_adap on s_log_addrs
Don't enable/disable the adapter if the first fh is opened or the
last fh is closed, instead do this when the adapter is configured
or unconfigured, and also when we enter Monitor All or Monitor Pin
mode for the first time or we exit the Monitor All/Pin mode for the
last time.

However, if needs_hpd is true, then do this when the physical
address is set or cleared: in that case the adapter typically is
powered by the HPD, so it really is disabled when the HPD is low.
This case (needs_hpd is true) was already handled in this way, so
this wasn't changed.

The problem with the old behavior was that if the HPD goes low when
no fh is open, and a transmit was in progress, then the adapter would
be disabled, typically stopping the transmit immediately which
leaves a partial message on the bus, which isn't nice and can confuse
some adapters.

It makes much more sense to disable it only when the adapter is
unconfigured and we're not monitoring the bus, since then you really
won't be using it anymore.

To keep track of this store a CEC activation count and call adap_enable
only when it goes from 0 to 1 or back to 0.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:37:58 +01:00
Yihao Han
82b4737fd0 media: meson-ir-tx: remove superfluous dev_err()
Remove dev_err() messages after platform_get_irq*() failures.
platform_get_irq() already prints an error.

Generated by: scripts/coccinelle/api/platform_get_irq.cocci

Signed-off-by: Yihao Han <hanyihao@vivo.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-24 07:30:34 +01:00
Mauro Carvalho Chehab
3d59142ad9 media: dvb-usb: dib0700_devices: use an enum for the device number
The device number is currently a value that needs to be the same
on two separate tables, but the code doesn't actually enforce it,
leading to errors as boards get added or removed.

Fix it by using an enum.

Link: https://lore.kernel.org/linux-media/028699ec71158dbc49d710a4259eb8cdb7f673cb.1648499509.git.mchehab@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-18 07:36:44 +02:00
Mauro Carvalho Chehab
281b21c56e media: dvb-usb: dibusb-mc: use an enum for the device number
The device number is currently a value that needs to be the same
on two separate tables, but the code doesn't actually enforce it,
leading to errors as boards get added or removed.

Fix it by using an enum.

Link: https://lore.kernel.org/linux-media/f1d4fa4960b709152ae693800c830e19a4bc1f48.1648499509.git.mchehab@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-18 07:36:44 +02:00
Mauro Carvalho Chehab
d763479abd media: dvb-usb: dibusb-mb: use an enum for the device number
The device number is currently a value that needs to be the same
on two separate tables, but the code doesn't actually enforce it,
leading to errors as boards get added or removed.

Fix it by using an enum.

Link: https://lore.kernel.org/linux-media/a300c26ad4e9bb913e86eeaf0ec7d72b9e7d5d3e.1648499509.git.mchehab@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-18 07:36:44 +02:00
Mauro Carvalho Chehab
5710a24b34 media: dvb-usb: vp7045: use an enum for the device number
The device number is currently a value that needs to be the same
on two separate tables, but the code doesn't actually enforce it,
leading to errors as boards get added or removed.

Fix it by using an enum.

Link: https://lore.kernel.org/linux-media/0241bf842bf592dfa01b0ef4916afda396194f98.1648499509.git.mchehab@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-18 07:36:44 +02:00
Mauro Carvalho Chehab
9c06331ca0 media: dvb-usb: vp702x: use an enum for the device number
The device number is currently a value that needs to be the same
on two separate tables, but the code doesn't actually enforce it,
leading to errors as boards get added or removed.

Fix it by using an enum.

Link: https://lore.kernel.org/linux-media/13bf6aab3909fae5da4c9a24c114b15e76abd146.1648499509.git.mchehab@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-04-18 07:36:44 +02:00