linux-stable.git/drivers/media/platform, branch v4.6.2

[media] media: s3c-camif: fix deadlock on driver probe()

2016-05-02T13:39:58+00:00

Commit 0c426c472b5585ed6e59160359c979506d45ae49 ("[media] media: Always
keep a graph walk large enough around") changed
media_device_register_entity() function to take mdev->graph_mutex. This
causes deadlock in driver probe, which calls (indirectly) this function
with ->graph_mutex taken. This patch removes taking ->graph_mutex in
driver probe to avoid deadlock. Other drivers don't take ->graph_mutex
for entity registration, so this change should be safe.

Signed-off-by: Marek Szyprowski 
Signed-off-by: Mauro Carvalho Chehab

[media] media: exynos4-is: fix deadlock on driver probe

2016-05-02T13:39:26+00:00

Commit 0c426c472b5585ed6e59160359c979506d45ae49 ("[media] media: Always
keep a graph walk large enough around") changed
media_device_register_entity() function to take mdev->graph_mutex. This
causes deadlock in driver probe, which calls (indirectly) this function
with ->graph_mutex taken. This patch removes taking ->graph_mutex in
driver probe to avoid deadlock. Other drivers don't take ->graph_mutex
for entity registration, so this change should be safe.

Signed-off-by: Marek Szyprowski 
Acked-by: Sakari Ailus 
Tested-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] vsp1: use proper dma alloc/free functions

2016-03-21T20:49:01+00:00

I noticed this while merging the drm tree and checking for stragglers:
the vsp1 driver still used dma_[alloc|free]_writecombine() that got
renamed in commit f6e45661f9be ("dma, mm/pat: Rename
dma_*_writecombine() to dma_*_wc()")

I should have noticed back in the media merge (commit bace3db5da97), but
better late than never.

Signed-off-by: Linus Torvalds

Merge tag 'media/v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2016-03-17T01:27:32+00:00

Pull media updates from Mauro Carvalho Chehab:
 - Added support for some new video formats
 - mn88473 DVB frontend driver got promoted from staging
 - several improvements at the VSP1 driver
 - several cleanups and improvements at the Media Controller
 - added Media Controller support to snd-usb-audio.  Currently, enabled
   only for au0828-based V4L2/DVB boards
 - Several improvements at nuvoton-cir: it now supports wake up codes
 - Add media controller support to em28xx and saa7134 drivers
 - coda driver now accepts NXP distributed firmware files
 - Some legacy SoC camera drivers will be moving to staging, as they're
   outdated and nobody so far is willing to fix and convert them to use
   the current media framework
 - As usual, lots of cleanups, improvements and new board additions.

* tag 'media/v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (381 commits)
  media: au0828 disable tuner to demod link in au0828_media_device_register()
  [media] touptek: cast char types on %x printk
  [media] touptek: don't DMA at the stack
  [media] mceusb: use %*ph for small buffer dumps
  [media] v4l: exynos4-is: Drop unneeded check when setting up fimc-lite links
  [media] v4l: vsp1: Check if an entity is a subdev with the right function
  [media] hide unused functions for !MEDIA_CONTROLLER
  [media] em28xx: fix Terratec Grabby AC97 codec detection
  [media] media: add prefixes to interface types
  [media] media: rc: nuvoton: switch attribute wakeup_data to text
  [media] v4l2-ioctl: fix YUV422P pixel format description
  [media] media: fix null pointer dereference in v4l_vb2q_enable_media_source()
  [media] v4l2-mc.h: fix yet more compiler errors
  [media] staging/media: add missing TODO files
  [media] media.h: always start with 1 for the audio entities
  [media] sound/usb: Use meaninful names for goto labels
  [media] v4l2-mc.h: fix compiler warnings
  [media] media: au0828 audio mixer isn't connected to decoder
  [media] sound/usb: Use Media Controller API to share media resources
  [media] dw2102: add support for TeVii S662
  ...

dma, mm/pat: Rename dma__writecombine() to dma__wc()

2016-03-09T13:57:51+00:00

Rename dma_*_writecombine() to dma_*_wc(), so that the naming
is coherent across the various write-combining APIs. Keep the
old names for compatibility for a while, these can be removed
at a later time. A guard is left to enable backporting of the
rename, and later remove of the old mapping defines seemlessly.

Build tested successfully with allmodconfig.

The following Coccinelle SmPL patch was used for this simple
transformation:

@ rename_dma_alloc_writecombine @
expression dev, size, dma_addr, gfp;
@@

-dma_alloc_writecombine(dev, size, dma_addr, gfp)
+dma_alloc_wc(dev, size, dma_addr, gfp)

@ rename_dma_free_writecombine @
expression dev, size, cpu_addr, dma_addr;
@@

-dma_free_writecombine(dev, size, cpu_addr, dma_addr)
+dma_free_wc(dev, size, cpu_addr, dma_addr)

@ rename_dma_mmap_writecombine @
expression dev, vma, cpu_addr, dma_addr, size;
@@

-dma_mmap_writecombine(dev, vma, cpu_addr, dma_addr, size)
+dma_mmap_wc(dev, vma, cpu_addr, dma_addr, size)

We also keep the old names as compatibility helpers, and
guard against their definition to make backporting easier.

Generated-by: Coccinelle SmPL
Suggested-by: Ingo Molnar 
Signed-off-by: Luis R. Rodriguez 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: airlied@linux.ie
Cc: akpm@linux-foundation.org
Cc: benh@kernel.crashing.org
Cc: bhelgaas@google.com
Cc: bp@suse.de
Cc: dan.j.williams@intel.com
Cc: daniel.vetter@ffwll.ch
Cc: dhowells@redhat.com
Cc: julia.lawall@lip6.fr
Cc: konrad.wilk@oracle.com
Cc: linux-fbdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: luto@amacapital.net
Cc: mst@redhat.com
Cc: tomi.valkeinen@ti.com
Cc: toshi.kani@hp.com
Cc: vinod.koul@intel.com
Cc: xen-devel@lists.xensource.com
Link: http://lkml.kernel.org/r/1453516462-4844-1-git-send-email-mcgrof@do-not-panic.com
Signed-off-by: Ingo Molnar

[media] v4l: exynos4-is: Drop unneeded check when setting up fimc-lite links

2016-03-05T12:10:01+00:00

The driver verifies that the type of the remote entity matches its
expectations when setting up fimc-lite links and returns an error if it
doesn't. Those checks can never fail as the links are created by the
driver in a way that always match its expectations (the SINK and
SOURCE_ISP pads are connected to subdevs only and the SOURCE_DMA pad is
connected to a video node only). Remove them.

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

[media] v4l: vsp1: Check if an entity is a subdev with the right function

2016-03-05T12:09:12+00:00

Use is_media_entity_v4l2_subdev() instead of is_media_entity_v4l2_io()
to check whether the entity is a subdev.

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

[media] coda: fix error path in case of missing pdata on non-DT platform

2016-03-03T17:11:51+00:00

If we bail out this early, v4l2_device_register() has not been called
yet, so no need to call v4l2_device_unregister().

Fixes: b7bd660a51f0 ("[media] coda: Call v4l2_device_unregister() from a single location")

Reported-by: Michael Olbrich 
Signed-off-by: Philipp Zabel 
Reviewed-by: Fabio Estevam 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l: omap3isp: Use V4L2 graph PM operations

2016-03-03T15:32:49+00:00

Power on devices represented by entities in the graph through the pipeline
state using V4L2 graph PM operations instead of what was in the omap3isp
driver.

Signed-off-by: Sakari Ailus 
Cc: Laurent Pinchart 
Signed-off-by: Mauro Carvalho Chehab

[media] soc_camera/mx3_camera.c: move to staging in preparation, for removal

2016-03-03T10:54:42+00:00

This driver is deprecated: it should become a stand-alone driver
instead of using the soc-camera framework.

Unless someone is willing to take this on (unlikely with such
ancient hardware) it is going to be removed from the kernel
soon.

Signed-off-by: Hans Verkuil 
Acked-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab