Ensure the v4l2_device notifications from sensor subdev works
also after the media links reconfiguration.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

It's not a critical error to call __fimc_pipeline_close() with missing
sensor subdev entity. Replace WARN_ON() with pr_warn() and return 0
instead of -EINVAL to fix control flow in some conditions.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This enumeration is now private to exynos4-is and the exynos5 camera
subsystem driver may have the subdevs handling designed differently.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Use pm_runtime_put_sync() instead of pm_runtime_put() to avoid races
in handling the 'state' bit flags when the fimc-capture drivers'
runtime_resume callback is called from the PM workqueue.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove driver private video node reference counters and use entity->use_count
instead. This makes the video pipelines power handling more similar to the
method used in omap3isp driver.
Now the graph mutex is taken always after the video mutex, as it is not
possible to ensure apposite order at the all modules.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This patch moves the code for inheriting subdev v4l2 controls on the
FIMC video capture nodes from open()/close() fops to the link setup
notification callback. This allows for the state of the FIMC controls
to be always kept, in opposite to the current situation when it is
lost when last process closes video device.
There is no visible change for the original V4L2 compliant interface.
For the MC aware applications (user_subdev_api == true) inheriting
of the controls is dropped, since there can be same controls on the
subdevs withing single pipeline, now when the ISP (FIMC-IS) is also
used.
This patch is a prerequisite to allow /dev/video device to be opened
without errors even if there is no media links connecting it to an
image source (sensor) subdev. This is required for a libv4l2 plugin
to be initialized while a video node is opened and it also should be
possible to always open the device to query the capabilities.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This patch introduces common structure for the video entities
to handle all video nodes and media pipelines associated with
them in more generic way.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Create a common module (exynos4-is-common.ko) for common functions
used across the exynos4-is video device and subdev drivers.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This fixes following compilation warning:
drivers/media/i2c/s5c73m3/s5c73m3-core.c: In function ‘__s5c73m3_power_off’:
drivers/media/i2c/s5c73m3/s5c73m3-core.c:1389:19: warning: ignoring return value
of ‘regulator_enable’, declared with attribute warn_unused_result
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

These symbols are used only in their respective files and hence
should be made static.
[s.nawrocki@samsung.com: dropped the __fimc_is_hw_update_param()
 function change]
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

'exynos_mfc_match' is always compiled in. Hence of_match_ptr
is unnecessary.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This is a DT only driver and exynos_gsc_match is always compiled
in. Hence of_match_ptr is unnecessary.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

NULL check on clocks obtained using common clock APIs should not
be done. Use IS_ERR only.
[s.nawrocki: removed unrelated whitespace change]
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

NULL check on clocks obtained using common clock APIs should not
be done. Use IS_ERR only.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Fill in properly bus_info and card fields and set device_caps.
The querycap ioctl handler is renamed for consistency with the
other ioctls.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The driver id_table is unused since all SoCs containing the FIMC-LITE
IP block have been dt-only. Just remove it.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The s5c73m3 sensor node should be off an I2C bus controller node.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Fix to return a negative error code in the vb2_dma_contig_init_ctx()
error handling case instead of 0, as done elsewhere in this function.
Also vb2_dma_contig_init_ctx() return ERR_PTR() in case of error and
never return NULL, so use IS_ERR() replace IS_ERR_OR_NULL().
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

clk_unprepare checks for NULL pointer. Hence convert IS_ERR_OR_NULL
to IS_ERR only.
[s.nawrocki: added initialisation of the clock array to ERR_PTR() value]
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

clk_unprepare checks for NULL pointer. Hence convert IS_ERR_OR_NULL
to IS_ERR only.
[s.nawrocki: replaced initialisations to NULL with ERR_PTR() value]
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Silences the following type of warning:
WARNING: space prohibited before semicolon
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

dev_info is preferred to printk. Silences the related checkpatch
warning.
WARNING: Prefer netdev_info(netdev, ... then dev_info(dev, ...
then pr_info(...  to printk(KERN_INFO ...
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

These symbols are local to the file and should be static.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

These structs have holes and reserved struct members which aren't
cleared.  I've added a memset() so we don't leak stack information.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Check the return value and catch errors correctly.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NSakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

When the OMAP3 ISP driver is compiled in the kernel the device can be
probed before the corresponding IOMMU is available. Defer the probe in
that case, and fix a crash in the error path.
Reported-by: NJavier Martin <javier.martin@vista-silicon.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The ispqueue.h file uses vm_flags_t, which is defined in
linux/mm_types.h, so we must include that header in order
to build in all configurations.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Commit 0998d063 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NSakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

X-Patchwork-Delegate: mchehab@redhat.com
There are a few cases where breaking the code into separate
lines make it worse to read. However, on several places,
breaking it to make checkpatch.pl happier is OK and improves
code readability.
So, break longer lines where that won't cause harm.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

X-Patchwork-Delegate: mchehab@redhat.com
There are several places where: state->var = (some_var)
The parenthesis there are doing nothing but making it
harder to read and breaking the 80 columns soft limits.
Just get rid of it.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

X-Patchwork-Delegate: mchehab@redhat.com
Almost all 80-col warnings are related to comments. There's
one, however, that it is due to a one-line enum declaration
for enum agc_ctrl_mode.
Break it into one line per enumered data.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

X-Patchwork-Delegate: mchehab@redhat.com
The comments markup language used on Kernel is defined at:
	Documentation/kernel-doc-nano-HOWTO.txt
Remove invalid markups from the header file.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

X-Patchwork-Delegate: mchehab@redhat.com
Fixes the following checkpatch.pl warnings:
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+			msleep(10);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+		msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+			msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+		msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+		msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+		msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+		msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+		msleep(1);
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

X-Patchwork-Delegate: mchehab@redhat.com
WARNING: quoted string split across lines
	#5416: FILE: media/dvb-frontends/drxk_hard.c:5416:
	+		dprintk(1, "Could not set demodulator parameters. Make "
	+			"sure qam_demod_parameter_count (%d) is correct for "
	WARNING: quoted string split across lines
	#5423: FILE: media/dvb-frontends/drxk_hard.c:5423:
	+		dprintk(1, "Auto-probing the correct QAM demodulator command "
	+			"parameters was successful - using %d parameters.\n",
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

X-Patchwork-Delegate: mchehab@redhat.com
replace all occurrences of  printk(KERN_* by
pr_info/pr_warn/pr_err/pr_debug/pr_cont macros.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

X-Patchwork-Delegate: mchehab@redhat.com
Thare are lots of CamelCase warnings produced by checkpatch.pl.
This weren't fixed at the time the driver got submitted due
to the lack of manpower do to such cleanup.
Now that I have one script that automates this task, cleans
it. That makes the driver almost checkpatch-compliant,
except for 80 column warnings.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

X-Patchwork-Delegate: mchehab@redhat.com
Log10 routine is already defined at dvb_math.h and provides a good
enough approximation for 100 x log10(). So, instead of reinventing
the wheel, use the already existing function.
While here, don't use CamelCase on the function name.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The device has been tested on a MIPSel box with kernel 3.1.1 and backported media_tree drivers
The kernel detects the device with the following output:
usbcore: registered new interface driver dvb_usb_rtl28xxu
usb 1-2: dvb_usb_v2: found a 'Crypto Redi PC50A' in warm state
usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
DVB: registering new adapter (Crypto Redi PC50A)
usb 1-2: DVB: registering adapter 1 frontend 0 (Realtek RTL2832 (DVB-T))...
i2c i2c-4: fc0012: Fitipower FC0012 successfully identified
usb 1-2: dvb_usb_v2: 'Crypto Redi PC50A' successfully initialized and connected

[crope@iki.fi: fix trivial merge conflict]
Signed-off-by: NAlessandro Miceli <angelofsky1980@gmail.com>
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Use masked register write inside rtl2832u_power_ctrl().
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>