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Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Ensure there is no unbalanced pm_runtime_put().
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Due to hardware dependencies (clocks/power domain) the I2C bus
controller needs to be unregistered before fimc-is.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Ensure both debugfs: fimc_is directory and the fw_log file
are properly removed in the driver cleanup sequence.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Currently there is unbalanced module_put() on the s5p-csis module
which prevents it from being unloaded. The subdev's owner module
has reference count decremented in v4l2_device_unregister_subdev()
so just remove this erroneous call.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The FIMC-LITE.n subdevs have currently sd->owner field not set,
the exynos-fimc-lite module can be removed at any time, regardless
it is in use by other modules. When this module is unloaded the
kernel can crash easily by accessing video or media device nodes.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Add missing v4l2_device_unregister_subdev() call for the FIMC-IS subdevs
(currently there is only the FIMC-IS-ISP subdev) so corresponding resources
are properly freed upon the media device driver module removal.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyugmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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It's an I2C client driver and it must not overwrite the struct v4l2_subdev
dev_priv field, which is used by the v4l2 core to store a pointer to
struct i2c_client.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Remove regulator_bulk_free() calls as devm_regulator_bulk_get() function
is used to get the regulators so those will be freed automatically while
the driver is removed.
Missing gpio free is fixed by requesting a gpio with the devm_* API.
All that is done now in the I2C client driver remove() callback is the
media entity cleanup call.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Ensure the value of struct v4l2_subdev::flags field as set
in v4l2_subdev_init() is preserved when initializing it in
the subdev drivers.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Remove unneeded MODULE_DEVICE_TABLE(of,...) instances from files that
are linked into same module. This fixes following error when building
as a module:
LD [M] drivers/media/platform/exynos4-is/s5p-fimc.o
drivers/media/platform/exynos4-is/fimc-is-sensor.o: In function `.LANCHOR1':
fimc-is-sensor.c:(.rodata+0x48): multiple definition of `__mod_of_device_table'
drivers/media/platform/exynos4-is/fimc-is.o:fimc-is.c:(.rodata+0x174): first defined here
drivers/media/platform/exynos4-is/fimc-is-i2c.o:(.rodata+0x5c): multiple definition of `__mod_of_device_table'
drivers/media/platform/exynos4-is/fimc-is.o:fimc-is.c:(.rodata+0x174): first defined here
make[4]: *** [drivers/media/platform/exynos4-is/exynos-fimc-is.o] Error 1
Also remove exporting fimc_is_(un)register_i2c_driver functions, it
is not needed since these functions should be called only from our
module.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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index variable is used to check the validity of the data by
testing for negative values. Hence make it signed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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If fimc->drv_data is NULL, then fimc->drv_data->num_entities would
cause NULL pointer dereferencing. Hence remove it from print statement.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Expose the two ISP external clocks XCLKA and XCLKB as common clocks for
subdev drivers.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The default format conversion table mbus_fmt[] in soc_mediabus.c lists
"natural" conversions between media-bus and fourcc pixel formats, that are
achieved by storing data from the bus in RAM exactly as it arrives, only
possibly padding missing high or low bits. Such data acquisition mode
cannot change data endianness, therefore two locations with opposite
endianness are erroneous. This change might affest the omap1-camera driver,
existing configurations should be verified.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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this patch removes unnecessary header file inclusions and
fixes the typo's.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The vpss clocks were enabled by calling a exported function from a driver
in a machine code. calling driver code from platform code is incorrect way.
This patch fixes this issue and calls the function from driver code itself.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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By default the VPSS clocks were enabled in capture driver
for davinci family which creates duplicates for dm355/dm365/dm644x.
This patch adds support to enable the VPSS clocks in VPSS driver,
which avoids duplication of code and also adding clock aliases.
This patch uses PM runtime API to enable/disable clock, instead
of DaVinci clock framework. con_ids for master and slave clocks of
vpss is added in pm_domain.
This patch cleanups the VPSS clock enabling in the capture driver,
and also removes the clock alias in machine file. Along side adds
a vpss slave clock for DM365 as mentioned by Sekhar
(https://patchwork.kernel.org/patch/1221261/).
The Suspend/Resume in dm644x_ccdc.c which enabled/disabled the VPSS clock
is now implemented as part of the VPSS driver.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Add pm_runtime support to the TI Davinci VPIF driver.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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drivers/media/platform/davinci/Kconfig uses selects where
it should be using 'depends on'. This results in warnings of
the following sort when doing randconfig builds.
warning: (VIDEO_DM6446_CCDC && VIDEO_DM355_CCDC && VIDEO_ISIF && VIDEO_DAVINCI_VPBE_DISPLAY) selects VIDEO_VPSS_SYSTEM which has unmet direct dependencies (MEDIA_SUPPORT && V4L_PLATFORM_DRIVERS && ARCH_DAVINCI)
The VPIF kconfigs had a strange 'select' and 'depends on' cross
linkage which have been fixed as well by removing unneeded
VIDEO_DAVINCI_VPIF config symbol.
Similarly, remove the unnecessary VIDEO_VPSS_SYSTEM and
VIDEO_VPFE_CAPTURE. They don't select any independent functionality
and were being used to manage code dependencies which can
be handled using makefile.
Selecting video modules is now dependent on all ARCH_DAVINCI
instead of specific EVMs and SoCs earlier. This should help build
coverage. Remove unnecessary 'default y' for some config symbols.
While at it, fix the Kconfig help text to make it more readable
and fix names of modules created during module build.
Rename VIDEO_ISIF to VIDEO_DM365_ISIF as per suggestion from
Prabhakar.
This patch has only been build tested; I have tried to not break
any existing assumptions. I do not have the setup to test video,
so any test reports welcome.
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
[prabhakar.csengg@gmail.com: Fixed typo]
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Make sure the debug level is properly set initially so any debug
information is not printed to the kernel log without explicitly
enabling it.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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There is no need to check same bit before setting it, since we
always end up with a bit set. Remove some of the tests and make
set unconditional, in every place where all that needs to be done
is just setting a bit.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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More appropriate names for the ISP chain data structure.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Instead of incrementing p_region_num field each time we set a bit
in the parameter mask calculate the number of bits set only when
this information is needed.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Make the sensor subdevs host_data hold a pointer to struct fimc_source_info,
which is defined in the driver's public header, rather than a pointer to
struct fimc_sensor_info which is specific to exynos4-is media device driver.
The purpose of this change is to allow easier reuse of the fimc-lite module
in the exynos5-is driver, which should similarly store a pointer to struct
fimc_source_info instance in the sensor's subdev host_data.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Get the sensor subdev by walking media graph in both cases: when the
device is used as a subdev only and through video node. This allows
to not dereference the pipeline->subdevs[] array and makes the module
more generic and easier to re-use in other media driver.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Move the sub-device group ID definitions to the driver's public header
so they are available to other media drivers that need to share modules
found in exynos4-is.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Make sure mem_info[] array is not used uninitialized. This prevents
following compiler warning:
drivers/media/platform/s5p-mfc/s5p_mfc.c: In function s5p_mfc_probe:
drivers/media/platform/s5p-mfc/s5p_mfc.c:1032:33: warning: mem_info[0] may be used uninitialized in this function [-Wuninitialized]
drivers/media/platform/s5p-mfc/s5p_mfc.c:1021:15: note: mem_info[0] was declared here
drivers/media/platform/s5p-mfc/s5p_mfc.c:1032:33: warning: mem_info[1] may be used uninitialized in this function [-Wuninitialized]
drivers/media/platform/s5p-mfc/s5p_mfc.c:1021:15: note: mem_info[1] was declared here
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Add support for V4L2_DEC_CMD_STOP command which will instruct MFC device
to finish decoding and release all remaining frames kept for reference to
the user. After dequeueing last decoded frame the driver will generate an
V4L2_EVENT_EOS event.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kyngmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Make sure media_entity_pipeline_stop() is called on video device
close in cases where there was VIDIOC_STREAMON ioctl and no
VIDIOC_STREAMOFF. This patch fixes media entities stream_count
state which could prevent links from being disconnected, due to
non-zero stream_count.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This patch fixes erroneous setup of the YUV order caused by not
clearing FIMC_REG_MSCTRL_ORDER422_MASK bit field before setting
proper FIMC_REG_MSCTRL_ORDER422 bits. This resulted in false
colors for YUYV, YVYU, UYVY, VYUY color formats, depending in
what sequence those were configured by user space.
YUV order definitions are corrected so that following convention
is used:
| byte3 | byte2 | byte1 | byte0
-------+-------+-------+-------+------
YCBYCR | CR | Y | CB | Y
YCRYCB | CB | Y | CR | Y
CBYCRY | Y | CR | Y | CB
CRYCBY | Y | CB | Y | CR
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The FIMC-LITE output DMA allows to configure different YUV order
than the order at the camera input interface. Thus there is some
limited colorspace conversion possible. This patch makes the
color format variable be per FIMC-LITE input/output, rather than
a global per device. This also fixes incorrect behavior where
color format at the FIMC-LITE.N subdev's source pad is modified
by VIDIOC_S_FMT ioctl on the related video node.
YUV order definitions are corrected so that we use notation:
| byte3 | byte2 | byte1 | byte0
-------+-------+-------+-------+------
YCBYCR | CR | Y | CB | Y
YCRYCB | CB | Y | CR | Y
CBYCRY | Y | CR | Y | CB
CRYCBY | Y | CB | Y | CR
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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There is no need to use separate variant data structure for each
FIMC-LITE IP instance. According to my knowledge there are no
differences across them on Exynos4 as well as Exynos5 SoCs. Drop
flite_variant data structure and use struct flite_drvdata instead.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The Exynos platform will support only device tree based booting
from v3.10. The FIMC variant data will be parsed directly from
the device tree, hence the now unused static data can be removed.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Create disabled links from the FIMC-LITE subdevs to the FIMC-IS-ISP
subdev and from FIMC-IS-ISP to all FIMC subdevs.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This patch adds support for registration of the FIMC-IS device
represented by the FIMC-IS-ISP subdev to the top level media device
driver. The FIMC-IS subsystem is available on Exynos4x12 SoCs which
support only device tree based booting.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This patch adds a common image sensor driver and Makefile/Kconfig
to enable compilation of the whole IS driver.
The sensor subdev driver currently only handles an image sensor's
power supplies and reset signal. There is no I2C communication as
it is handled by the ISP's firmware.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This patch adds the ISP processing parameters interface files.
Signed-off-by: Younghwan Joo <yhwan.joo@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This patch adds the ISP I2C bus controller driver files.
Creating a standard I2C bus adapter, even if the driver doesn't
actually communicate with the hardware and it is instead
controlled by the ISP firmware running on the Cortex-A5, allows
to use standard hardware description in the device tree. As the
sensor would have actually had a standard V4L2 sub-device driver
run on the host CPU.
This approach allows to adapt the driver with a relatively small
effort should the Imaging Subsystem architecture change so that
the I2C bus is handled by the host's CPU OS, rather than the
internal FIMC-IS ARM CPU firmware. The image sensor driver could
be a standard I2C client driver, as in case of most existing
image sensors.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This patch adds a set of core files of the Exynos4x12 FIMC-IS
V4L2 driver. This includes main functionality like allocating
memory, loading the firmware, FIMC-IS register interface and
host CPU <-> IS command and error code definitions.
The driver currently exposes a single subdev named FIMC-IS-ISP,
which corresponds to the FIMC-IS ISP and DRC IP blocks.
The FIMC-IS-ISP subdev currently supports only a subset of user
controls. For other controls we need several extensions at the
V4L2 API. The supported standard controls are:
brightness, contrast, saturation, hue, sharpness, 3a_lock,
exposure_time_absolute, white_balance_auto_preset,
iso_sensitivity, iso_sensitivity_auto, exposure_metering_mode.
Signed-off-by: Younghwan Joo <yhwan.joo@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Currently the whole driver depends on MFD_SYSCON, which in turn
depends on OF. To allow to use the driver on non-dt platforms
(S5PV210) the SYSREG support is made conditional (it is needed
only for dt enabled platforms) and MFD_SYSCON is selected if
OF is enabled, instead of depending on OF.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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In multiplatform configurations, we cannot include headers
provided by only the exynos platform. Fortunately a number
of drivers that include those headers do not actually need
them, so we can just remove the inclusions.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Fixes the following checkpatch warning:
WARNING: please, no space before tabs
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Fixes the following checkpatch warning:
WARNING: please, no space before tabs
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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struct dev_pm_ops should be const.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Fixes the following checkpatch warning:
WARNING: please, no space before tabs
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Silences the following checkpatch warning:
WARNING: please, no space before tabs
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Fixes the following checkpatch warnings:
WARNING: unnecessary whitespace before a quoted newline
WARNING: please, no space before tabs
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Fixes the following checkpatch warnings:
WARNING: unnecessary whitespace before a quoted newline
WARNING: please, no space before tabs
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Checking '< 0' for unsigned variables always returns false. For error
codes, use IS_ERR_VALUE() instead.
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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