linux-toradex.git/include/media, branch v3.14.3

[media] saa6588: add support for non-blocking mode

2014-01-07T09:42:19+00:00

saa6588 always blocked while waiting for data, even if the filehandle
was in non-blocking mode.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] saa6588: remove unused CMD_OPEN

2014-01-07T09:40:59+00:00

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] saa6752hs.h: drop empty header

2014-01-07T09:39:31+00:00

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] vb2: retry start_streaming in case of insufficient buffers

2014-01-07T09:12:43+00:00

If start_streaming returns -ENOBUFS, then it will be retried the next time
a buffer is queued. This means applications no longer need to know how many
buffers need to be queued before STREAMON can be called. This is particularly
useful for output stream I/O.

If a DMA engine needs at least X buffers before it can start streaming, then
for applications to get a buffer out as soon as possible they need to know
the minimum number of buffers to queue before STREAMON can be called. You can't
just try STREAMON after every buffer since on failure STREAMON will dequeue
all your buffers. (Is that a bug or a feature? Frankly, I'm not sure).

This patch simplifies applications substantially: they can just call STREAMON
at the beginning and then start queuing buffers and the DMA engine will
kick in automagically once enough buffers are available.

This also fixes using write() to stream video: the fileio implementation
calls streamon without having any queued buffers, which will fail today for
any driver that requires a minimum number of buffers.

Signed-off-by: Hans Verkuil 
Acked-by: Marek Szyprowski 
Acked-by: Laurent Pinchart 
Signed-off-by: Mauro Carvalho Chehab

[media] vb2: push the mmap semaphore down to __buf_prepare()

2014-01-07T09:00:04+00:00

Rather than taking the mmap semaphore at a relatively high-level function,
push it down to the place where it is really needed.

It was placed in vb2_queue_or_prepare_buf() to prevent racing with other
vb2 calls. The only way I can see that a race can happen is when two
threads queue the same buffer. The solution for that it to introduce
a PREPARING state.

Moving it down offers opportunities to simplify the code.

Signed-off-by: Hans Verkuil 
Acked-by: Laurent Pinchart 
Signed-off-by: Mauro Carvalho Chehab

[media] adv7842: add drive strength enum and sync names with adv7604

2014-01-07T08:47:46+00:00

Add a proper driver strength enum and use the same names in the platform
data as with adv7604.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] adv7842: set LLC DLL phase from platform_data

2014-01-07T08:47:19+00:00

The correct LLC DLL phase depends on the board layout, so this
should be part of the platform_data.

Also updated the platform_data in ezkit to ensure that what was the old
default value is now explicitly specified, so the behavior for that board
is unchanged.

Tested-by: Martin Bugge 
Signed-off-by: Hans Verkuil 
Cc: Scott Jiang 
Signed-off-by: Mauro Carvalho Chehab

[media] adv7842: Composite sync adjustment

2014-01-07T08:46:43+00:00

Signed-off-by: Martin Bugge 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] adv7842: obtain free-run mode from the platform_data

2014-01-07T08:46:28+00:00

The free-run mode can be board-specific.

Also updated the platform_data in ezkit to ensure that what was the old
default value is now explicitly specified, so the behavior for that board
is unchanged.

Signed-off-by: Martin Bugge 
Signed-off-by: Hans Verkuil 
Cc: Scott Jiang 
Signed-off-by: Mauro Carvalho Chehab

[media] adv7842: Use defines to select EDID port

2014-01-07T08:34:22+00:00

Signed-off-by: Mats Randgaard 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab