Commit Graph

17 Commits

Author SHA1 Message Date
Uwe Kleine-König
cc4cbd4b4f media: Drop explicit initialization of struct i2c_device_id::driver_data to 0
These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.

This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.

While add it, also remove commas after the sentinel entries.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-09 07:56:37 +02:00
Uwe Kleine-König
aaeb31c00e media: Switch i2c drivers back to use .probe()
After commit b8a1a4cd5a ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
commit 03c835f498 ("i2c: Switch .probe() to not take an id parameter")
convert back to (the new) .probe() to be able to eventually drop
.probe_new() from struct i2c_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2023-05-25 16:21:21 +02:00
Linus Torvalds
cdb9d35377 media updates for v6.2-rc1
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Merge tag 'media/v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - DVB core changes to avoid refcount troubles and UAF

 - DVB API/core has gained support for DVB-C2 and DVB-S2X

 - New sensor drivers: ov08x40, ov4689.c, st-vgxy61 and tc358746.c

 - Removal of an unused sensor driver: s5k4ecgx

 - Move microchip_csi2dc to a new directory, named after the
   manufacturer

 - Add media controller support to Microship drivers

 - Old Atmel/Microship drivers that don't use media controler got moved
   to staging

 - New drivers added for Renesas RZ/G2L CRU and MIPI CSI-2 support

 - Allwinner A31 camera sensor driver code was now split into a bridge
   and a separate processor driver

 - Added a virtual stateless decoder driver in order to test core
   support for stateless drivers and test userspace apps using it

 - removed platform-based support for ov9650, as this is not used
   anymore

 - atomisp now uses videobuf2 and supports normal mmap mode

 - the imx7-media-csi driver got promoted from staging

 - rcar-vin driver has gained support for gen3 UDS (Up Down Scaler)

 - most i2c drivers now use I2C .probe_new() kAPI

 - lots of drivers fixes, cleanups and improvements

* tag 'media/v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (544 commits)
  media: s5c73m3: Switch to GPIO descriptors
  media: i2c: s5k5baf: switch to using gpiod API
  media: i2c: s5k6a3: switch to using gpiod API
  media: imx: remove code for non-existing config IMX_GPT_ICAP
  media: si470x: Fix use-after-free in si470x_int_in_callback()
  media: staging: stkwebcam: Restore MEDIA_{USB,CAMERA}_SUPPORT dependencies
  media: coda: Add check for kmalloc
  media: coda: Add check for dcoda_iram_alloc
  dt-bindings: media: s5c73m3: Fix reset-gpio descriptor
  media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference property
  media: s5k4ecgx: Delete driver
  media: s5k4ecgx: Switch to GPIO descriptors
  media: Switch to use dev_err_probe() helper
  headers: Remove some left-over license text in include/uapi/linux/v4l2-*
  headers: Remove some left-over license text in include/uapi/linux/dvb/
  media: usb: pwc-uncompress: Use flex array destination for memcpy()
  media: s5p-mfc: Fix to handle reference queue during finishing
  media: s5p-mfc: Clear workbit to handle error condition
  media: s5p-mfc: Fix in register read and write for H264
  media: imx: Use get_mbus_config instead of parsing upstream DT endpoints
  ...
2022-12-13 11:36:58 -08:00
Uwe Kleine-König
7d4833b166 media: vidtv: Convert to i2c's .probe_new()
The probe functions doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2022-11-21 11:04:42 +01:00
Jason A. Donenfeld
8032bf1233 treewide: use get_random_u32_below() instead of deprecated function
This is a simple mechanical transformation done by:

@@
expression E;
@@
- prandom_u32_max
+ get_random_u32_below
  (E)

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs
Reviewed-by: SeongJae Park <sj@kernel.org> # for damon
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> # for infiniband
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> # for arm
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # for mmc
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-11-18 02:15:15 +01:00
Uwe Kleine-König
ed5c2f5fd1 i2c: Make remove callback return void
The value returned by an i2c driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)

So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.

Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Crt Mori <cmo@melexis.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/*
Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5
Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860
Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b
Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes
Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-08-16 12:46:26 +02:00
Mauro Carvalho Chehab
a8bd461ca3 media: vidtv: do some cleanups at the driver
Do some cleanups at the coding style of the driver:
- remove "inline" declarations;
- use reverse xmas-tree for local var declarations;
- Adjust some indent to avoid breaking 80-cols;
- Cleanup some comments.

No functional changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-26 08:05:23 +01:00
Mauro Carvalho Chehab
8922e3931d media: vidtv: reorganize includes
- Place the includes on alphabetical order;
- get rid of asm/byteorder.h;
- add bug.h at vidtv_s302m.c, as it is needed by
  inux/fixp-arith.h

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-26 07:41:03 +01:00
Mauro Carvalho Chehab
d38829a5e1 media: vidtv: add DiSEqC dummy ops
Those are needed for real applications to work with Satellite
systems.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-17 12:00:19 +02:00
Mauro Carvalho Chehab
741043b02c media: vidtv: don't initialize cnr2qual var
As reported by gcc:

	drivers/media/test-drivers/vidtv/vidtv_demod.c: In function 'vidtv_demod_set_frontend':
	drivers/media/test-drivers/vidtv/vidtv_demod.c:265:42: warning: variable 'cnr2qual' set but not used [-Wunused-but-set-variable]
	  265 |  const struct vidtv_demod_cnr_to_qual_s *cnr2qual = NULL;
	      |                                          ^~~~~~~~

It turns that the var is not needed at all. So, just drop it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-14 16:10:08 +02:00
Mauro Carvalho Chehab
d859a712a3 media: vidtv: adjust signal strength range
On real devices, signal strength is always a negative
number when represented in dBm. A more interesting
range is to use dBmV (which is what Kaffeine does,
for example). The conversion from the two units are
simple:

	dBmV = dBm - 108

Usually, signal strength ranges up to 100dBmV. Adjust the
maximum value to be around 74 dBmV, when there's no
frequency shift, which represents a good signal.

With that, Kaffeine displays it a lot better.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-14 16:02:55 +02:00
Mauro Carvalho Chehab
f58cac01ab media: vidtv: get rid of the work queue
The dvb_frontend will already call status periodically, when
a channel is tuned. So, no need to have a work queue for
such purpose.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-14 16:02:54 +02:00
Mauro Carvalho Chehab
3e51a4965b media: vidtv: add basic support for DVBv5 stats
The current stats code is broken on so many ways. It ends
reporting 0 for signal strengh, and the work queue doesn't
run. If it would run, the code would crash.

Fix such issues and add the minimum stuff for DVBv5 stats.

Right now, only strength and cnr and UCB are implemented.
pre/post BER stats will always return zero.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-14 16:02:54 +02:00
Mauro Carvalho Chehab
96230dc134 media: vidtv: properly initialize the internal state struct
Right now, the config data passed from the bridge driver is
just ignored.

Also, let's initialize the delayed work at probing time.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-14 16:02:54 +02:00
Mauro Carvalho Chehab
9cfb4d36c2 media: vidtv: prefer using dev_foo() instead of pr_foo()
It is better to use the higher level dev_foo() than pr_foo()
for printks.

Change them at vidtv at the more trivial places.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-14 15:47:51 +02:00
Mauro Carvalho Chehab
63101b7568 media: vidtv: fix driver unbind/remove
The current remove logic is broken and causes an OOPS.

Fix it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-12 09:43:54 +02:00
Daniel W. S. Almeida
f5ffc3b6ed media: vidtv: implement a demodulator driver
Implement a I2C demodulator driver, simulating support for DVB-T, DVB-C
and DVB-S.

This demodulator will periodically check the signal quality against a table
and drop the TS lock if it drops below a threshold value, regaining it in
the event that the signal improves.

Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-12 09:42:34 +02:00