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: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Currently video capturing using streaming I/O method
doesn't work if capturing to overlay buffer took place
before.

When enabling the stream we have to check the overlay
enable driver flag and reset it so that the interrupt
handler won't execute the overlay interrupt path after
enabling DMA in streamon routine. Otherwise the capture
interrupt won't be handled correctly causing non working
VIDIOC_DQBUF ioctl.
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Currently the driver enables overlay when running
VIDIOC_S_FMT ioctl with fmt type V4L2_BUF_TYPE_VIDEO_OVERLAY.
Actually, this is wrong. Add proper VIDIOC_OVERLAY support
instead of using VIDIOC_S_FMT for overlay enable.
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Use the core-assisted locking in fsl-viu driver and switch
to .unlocked_ioctl.
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Final step to eliminate of_platform_bus_type.  They're all just
platform drivers now.

v2: fix type in pasemi_nand.c (thanks to Stephen Rothwell)
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

VIDIOC_QUERYSTD and VIDIOC_G_STD ioctls are currently not
supported in the FSL VIU driver. The decoder subdevice
driver saa7115 extended by previous patch supports QUERYSTD
for saa711x, so we add the appropriate ioctls to the VIU
driver to be able to determine the video input's standard.
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Streaming using mmap didn't work in the VIU driver. We need to
start/stop DMA in streamon/streamoff and free the buffers on
release. Add appropriate driver extension now.
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The argument isn't used anymore by the functions, remove it.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

With the v4l2_i2c_new_subdev* functions now supporting loading modules
based on modaliases, replace the hardcoded module name passed to those
functions by NULL.

All corresponding I2C modules have been checked, and all of them include
a module aliases table with names corresponding to what the drivers
modified here use.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Missed a few init functions on non-Intel platforms the first time :-(
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

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>.

[mchehab@redhat.com: add extra argument to a few missing places]
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

mpc512x kernel configurations without SPI support do not build:

drivers/media/video/fsl-viu.c: In function 'viu_open':
drivers/media/video/fsl-viu.c:1248: error: implicit declaration of function 'kzalloc'
drivers/media/video/fsl-viu.c:1248: warning: assignment makes pointer from integer without a cast
drivers/media/video/fsl-viu.c: In function 'viu_release':
drivers/media/video/fsl-viu.c:1335: error: implicit declaration of function 'kfree'

If CONFIG_SPI is enabled, the slab.h will be included in
linux/spi/spi.h which is included by media/v4l2-common.h
and the fsl_viu.c driver builds.

Let's incluce linux/slab.h directly to fix the build breakage.
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

of_device is just an alias for platform_device, so remove it entirely.  Also
replace to_of_device() with to_platform_device() and update comment blocks.

This patch was initially generated from the following semantic patch, and then
edited by hand to pick up the bits that coccinelle didn't catch.

@@
@@
-struct of_device
+struct platform_device
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Reviewed-by: NDavid S. Miller <davem@davemloft.net>

Adds support for Video-In (VIU) unit of Freescale
MPC5121e. The driver supports RGB888/RGB565 formats,
capture and overlay on MPC5121e DIU frame buffer.
Signed-off-by: NHongjun Chen <hong-jun.chen@freescale.com>
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>