kernel.git/drivers/media/video/mx1_camera.c, branch linux-3.1.y

[media] V4L: soc-camera: remove soc-camera bus and devices on it

2011-07-27T20:56:08Z

Now that v4l2 subdevices have got their own device objects, having one more device in soc-camera clients became redundant and confusing. This patch removes those devices and the soc-camera bus, they used to reside on. Signed-off-by: Guennadi Liakhovetski Acked-by: Paul Mundt Signed-off-by: Mauro Carvalho Chehab

[media] Stop using linux/version.h on the remaining video drivers

2011-07-27T20:53:16Z

Standardize the remaining video drivers to return the API version for the VIDIOC_QUERYCAP version, instead of a per-driver version. Those drivers had the version updated more recently or are SoC drivers. Even so, it doesn't sound a good idea to keep a per-driver version control, so, let's use the per-subsystem version control instead. Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] V4L: mx1-camera: fix uninitialized variable

2011-07-01T18:51:34Z

mx1_camera_add_device() can return an uninitialized value of ret. Signed-off-by: Andre Bartke [g.liakhovetski@gmx.de: modified the fix to remove "ret" completely] Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab

[media] v4l: soc-camera: switch to .unlocked_ioctl

2010-12-31T00:29:26Z

Use the V4L mutex infrastructure in soc-camera core and drivers and switch to .unlocked_ioctl. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: videobuf: add ext_lock argument to the queue init functions (part 2)

2010-10-21T03:06:19Z

Missed a few init functions on non-Intel platforms the first time :-( Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: soc-camera: allow only one video queue per device

2010-10-21T03:06:18Z

Multiple user-space application instances can open the same video device, but it only makes sense for one of them to manage the videobuffer queue and set video format of the device. Restrict soc-camera respectively. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: videobuf: add queue argument to videobuf_waiton()

2010-10-21T03:06:14Z

videobuf_waiton() must unlock and relock ext_lock if it has to wait. For that to happen it needs the videobuf_queue pointer. Don't attempt to unlock/relock q->ext_lock unless it was locked in the first place. vb->state has to be protected by a spinlock to be safe. This patch is based on code from Mauro Carvalho Chehab . [mchehab@redhat.com: add extra argument to a few missing places] Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: V4L2: Replace loops for finding max buffers in VIDIOC_REQBUFS callbacks

2010-05-19T15:57:13Z

Due to obvious copy and paste coding a number of video capture drivers which implement a limit on the buffer memory decremented the user supplied buffer count in a while loop until it reaches an acceptable value. This is a silly thing to do when the maximum value can be directly computed. Signed-off-by: Andreas Bombe Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: mx1-camera: compile fix

2010-05-06T22:20:51Z

This fixes a regression of 7d58289 (mx1: prefix SOC specific defines with MX1_ and deprecate old names) Signed-off-by: Uwe Kleine-König Acked-by: Sascha Hauer Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30T13:02:32Z

percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn