linux-stable.git/drivers/media, branch v6.8

media: pwm-ir-tx: Depend on CONFIG_HIGH_RES_TIMERS

2024-02-01T12:49:39+00:00

Since commit 363d0e56285e ("media: pwm-ir-tx: Trigger edges from
hrtimer interrupt context"), pwm-ir-tx uses high resolution timers
for IR signal generation when the pwm can be used from atomic context.
Ensure they are available.

Fixes: 363d0e56285e ("media: pwm-ir-tx: Trigger edges from hrtimer interrupt context")
Signed-off-by: Sean Young 
Signed-off-by: Mauro Carvalho Chehab

media: ir_toy: fix a memleak in irtoy_tx

2024-02-01T12:49:18+00:00

When irtoy_command fails, buf should be freed since it is allocated by
irtoy_tx, or there is a memleak.

Fixes: 4114978dcd24 ("media: ir_toy: prevent device from hanging during transmit")
Signed-off-by: Zhipeng Lu 
Signed-off-by: Sean Young 
Signed-off-by: Mauro Carvalho Chehab

media: rc: bpf attach/detach requires write permission

2024-02-01T12:48:57+00:00

Note that bpf attach/detach also requires CAP_NET_ADMIN.

Cc: stable@vger.kernel.org
Signed-off-by: Sean Young 
Signed-off-by: Mauro Carvalho Chehab

media: rkisp1: Fix IRQ handling due to shared interrupts

2024-02-01T05:47:28+00:00

The driver requests the interrupts as IRQF_SHARED, so the interrupt
handlers can be called at any time. If such a call happens while the ISP
is powered down, the SoC will hang as the driver tries to access the
ISP registers.

This can be reproduced even without the platform sharing the IRQ line:
Enable CONFIG_DEBUG_SHIRQ and unload the driver, and the board will
hang.

Fix this by adding a new field, 'irqs_enabled', which is used to bail
out from the interrupt handler when the ISP is not operational.

Link: https://lore.kernel.org/r/20231218-rkisp-shirq-fix-v1-2-173007628248@ideasonboard.com

Signed-off-by: Tomi Valkeinen 
Signed-off-by: Laurent Pinchart 
Signed-off-by: Mauro Carvalho Chehab

media: Revert "media: rkisp1: Drop IRQF_SHARED"

2024-02-01T05:46:46+00:00

This reverts commit 85d2a31fe4d9be1555f621ead7a520d8791e0f74.

The rkisp1 does share interrupt lines on some platforms, after all. Thus
we need to revert this, and implement a fix for the rkisp1 shared irq
handling in a follow-up patch.

Closes: https://lore.kernel.org/all/87o7eo8vym.fsf@gmail.com/
Link: https://lore.kernel.org/r/20231218-rkisp-shirq-fix-v1-1-173007628248@ideasonboard.com

Reported-by: Mikhail Rudenko 
Signed-off-by: Tomi Valkeinen 
Signed-off-by: Laurent Pinchart 
Signed-off-by: Mauro Carvalho Chehab

media: vb2: refactor setting flags and caps, fix missing cap

2024-01-24T16:27:51+00:00

Several functions implementing VIDIOC_REQBUFS and _CREATE_BUFS all use
almost the same code to fill in the flags and capability fields. Refactor
this into a new vb2_set_flags_and_caps() function that replaces the old
fill_buf_caps() and validate_memory_flags() functions.

This also fixes a bug where vb2_ioctl_create_bufs() would not set the
V4L2_BUF_CAP_SUPPORTS_MAX_NUM_BUFFERS cap and also not fill in the
max_num_buffers field.

Fixes: d055a76c0065 ("media: core: Report the maximum possible number of buffers for the queue")
Signed-off-by: Hans Verkuil 
Reviewed-by: Benjamin Gaignard 
Acked-by: Tomasz Figa

media: media videobuf2: Stop direct calls to queue num_buffers field

2024-01-24T16:27:51+00:00

Use vb2_get_num_buffers() to avoid using queue num_buffers field directly.
This allows us to change how the number of buffers is computed in the
future.

Fixes: d055a76c0065 ("media: core: Report the maximum possible number of buffers for the queue")
Signed-off-by: Benjamin Gaignard 
Acked-by: Tomasz Figa 
Signed-off-by: Hans Verkuil

media: chips-media: wave5: Remove K3 References

2024-01-24T16:27:51+00:00

Change compatible string to match dt bindings for TI devices. K3 family
prefix should not be included as it deviates from naming convention.

Fixes: 9707a6254a8a ("media: chips-media: wave5: Add the v4l2 layer")
Reported-by: Geert Uytterhoeven 
Closes: https://lore.kernel.org/all/CAMuHMdUYOq=q1j=d+Eac28hthOUAaNUkuvxmRu-mUN1pLKq69g@mail.gmail.com/
Signed-off-by: Brandon Brnich 
Reviewed-by: Nishanth Menon 
Signed-off-by: Hans Verkuil

media: solo6x10: replace max(a, min(b, c)) by clamp(b, a, c)

2024-01-20T21:30:00+00:00

This patch replaces max(a, min(b, c)) by clamp(b, a, c) in the solo6x10
driver.  This improves the readability and more importantly, for the
solo6x10-p2m.c file, this reduces on my system (x86-64, gcc 13):

 - the preprocessed size from 121 MiB to 4.5 MiB;

 - the build CPU time from 46.8 s to 1.6 s;

 - the build memory from 2786 MiB to 98MiB.

In fine, this allows this relatively simple C file to be built on a
32-bit system.

Reported-by: Jiri Slaby 
Closes: https://lore.kernel.org/lkml/18c6df0d-45ed-450c-9eda-95160a2bbb8e@gmail.com/
Cc:   # v6.7+
Suggested-by: David Laight 
Signed-off-by: Aurelien Jarno 
Reviewed-by: David Laight 
Reviewed-by: Hans Verkuil 
Signed-off-by: Linus Torvalds

Merge tag 'i2c-for-6.8-rc1-rebased' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

2024-01-19T01:29:01+00:00

Pull i2c updates from Wolfram Sang:
 "This removes the currently unused CLASS_DDC support (controllers set
  the flag, but there is no client to use it).

  Also, CLASS_SPD support gets simplified to prepare removal in the
  future. Class based instantiation is not recommended these days
  anyhow.

  Furthermore, I2C core now creates a debugfs directory per I2C adapter.
  Current bus driver users were converted to use it.

  Finally, quite some driver updates. Standing out are patches for the
  wmt-driver which is refactored to support more variants.

  This is the rebased pull request where a large series for the
  designware driver was dropped"

* tag 'i2c-for-6.8-rc1-rebased' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (38 commits)
  MAINTAINERS: use proper email for my I2C work
  i2c: stm32f7: add support for stm32mp25 soc
  i2c: stm32f7: perform I2C_ISR read once at beginning of event isr
  dt-bindings: i2c: document st,stm32mp25-i2c compatible
  i2c: stm32f7: simplify status messages in case of errors
  i2c: stm32f7: perform most of irq job in threaded handler
  i2c: stm32f7: use dev_err_probe upon calls of devm_request_irq
  i2c: i801: Add lis3lv02d for Dell XPS 15 7590
  i2c: i801: Add lis3lv02d for Dell Precision 3540
  i2c: wmt: Reduce redundant: REG_CR setting
  i2c: wmt: Reduce redundant: function parameter
  i2c: wmt: Reduce redundant: clock mode setting
  i2c: wmt: Reduce redundant: wait event complete
  i2c: wmt: Reduce redundant: bus busy check
  i2c: mux: reg: Remove class-based device auto-detection support
  i2c: make i2c_bus_type const
  dt-bindings: at24: add ROHM BR24G04
  eeprom: at24: use of_match_ptr()
  i2c: cpm: Remove linux,i2c-index conversion from be32
  i2c: imx: Make SDA actually optional for bus recovering
  ...