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The dft_fr, min_fr and max_fr fields of the alvium_dev structure are
only used to pass results from alvium_get_frame_interval() to its
caller. Replace them with function parameters.
Signed-off-by: Tommaso Merciai <tomm.merciai@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The pointer mode is being initialized with a value that is never
read, it is being re-assigned later on. The initialization is
redundant and can be removed.
Cleans up clang scan build warning:
drivers/media/i2c/st-vgxy61.c:632:33: warning: Value stored to 'mode'
during its initialization is never read [deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The msp_sleep() is nearly open-coded wait_event_interruptible_timeout(),
and a freezable kernel thread can enter frozen state during freezing by
either calling try_to_freeze() or using wait_event_freezable() and its
variants. So we can reimplement msp_sleep() to simply invoke
a wait_event_freezable_timeout() and then eliminate a call to
try_to_freeze().
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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There are two ways to opportunistically increment a device's runtime PM
usage count, calling either pm_runtime_get_if_active() or
pm_runtime_get_if_in_use(). The former has an argument to tell whether to
ignore the usage count or not, and the latter simply calls the former with
ign_usage_count set to false. The other users that want to ignore the
usage_count will have to explicitly set that argument to true which is a
bit cumbersome.
To make this function more practical to use, remove the ign_usage_count
argument from the function. The main implementation is in a static
function called pm_runtime_get_conditional() and implementations of
pm_runtime_get_if_active() and pm_runtime_get_if_in_use() are moved to
runtime.c.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Takashi Iwai <tiwai@suse.de> # sound/
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> # drivers/accel/ivpu/
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> # drivers/gpu/drm/i915/
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # drivers/pci/
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Because video duration involves calculating the streaming time, and i2c
communication incurs too many XTALK register settings every 4 bytes with
i2c START and STOP.
So we have opted switch to the i2c burst method.
This method involves writing the XTALK registers in the order of
the register block.
The start streaming time can be reduced from around 400ms to 150ms
[Sakari Ailus: Drop unneeded dev_dbg().]
Signed-off-by: Jason Chen <jason.z.chen@intel.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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This reverts commit feb8831be9d468ee961289c6a275536a1ee0011c.
Commit feb8831be9d468ee961289c6a275536a1ee0011c contained unintentional
changes to Documentation/devicetree/bindings/media/video-interfaces.yaml
and arch/arm/boot/dts/ti/omap/omap3-n9.dts. Revert the entire patch.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The field is gone, remove the documentation.
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Kerneldoc does not seem to understand that embed doc:
drivers/media/i2c/ccs/ccs-quirk.h:50: warning: Excess struct member 'write' description in 'ccs_quirk'
drivers/media/i2c/ccs/ccs-quirk.h:50: warning: Excess struct member 'reg' description in 'ccs_quirk'
drivers/media/i2c/ccs/ccs-quirk.h:50: warning: Excess struct member 'val' description in 'ccs_quirk'
Convert into a standard doc.
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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ERROR: else should follow close brace '}'
Signed-off-by: Bhavin Sharma <bhavin.sharma@siliconsignals.io>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Following formula of Pll_clk in 5.2 section, 50th page of
TC358746AXBG/748XBG/748IXBG Functional Specification Rev 1.1 document.
The formula of fout is as below:
fout = refclk * mul / (prediv * postdiv)
Remove "p" to avoid using 2 times of prediv in pll calculating function.
Signed-off-by: Duc-Long, Le <duclong.linux@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Because video duration involves calculating the streaming time, and i2c
communication incurs too many XTALK register settings every 4 bytes with
i2c START and STOP.
So we have opted switch to the i2c burst method.
This method involves writing the XTALK registers in the order of
the register block.
The start streaming time can be reduced from around 400ms to 150ms
[Sakari Ailus: Drop unneeded dev_dbg().]
Signed-off-by: Jason Chen <jason.z.chen@intel.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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ov08x40 quad bayer sensor ISP has the following work modes:
- normal mode: full size
- 2x2 binned mode: binning size
In normal and binned modes, different tline calculations are
applied.
- normal mode: Tline value needs to be doubled as per the
vendor's update.
Tline time = 2 * HTS / SCLK
Exposure unit : 1 * HTS = 0.5 Tline
- 2x2 binned mode:
Tline time = 1 * HTS / SCLK
Exposure unit : 1 * HTS = 1 Tline
Signed-off-by: Jason Chen <jason.z.chen@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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When the system enters the D0 state and attempt to probe the device,
another component, such as LED, will also be pulled high due to the
hardware design. It's advisable to keep the device being probed in
a different D state.
Signed-off-by: Jason Chen <jason.z.chen@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Use the v4l2_link_freq_to_bitmap() helper to figure out which
driver-supported link freq can be used on a given system.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Use the v4l2_link_freq_to_bitmap() helper to figure out which
driver-supported link freq can be used on a given system.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Use the v4l2_link_freq_to_bitmap() helper to figure out which
driver-supported link frequencies can be used on a given system.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache.
Signed-off-by: Bo Liu <liubo03@inspur.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache.
Signed-off-by: Bo Liu <liubo03@inspur.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache.
Signed-off-by: Bo Liu <liubo03@inspur.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache.
Signed-off-by: Bo Liu <liubo03@inspur.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache.
Signed-off-by: Bo Liu <liubo03@inspur.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache.
Signed-off-by: Bo Liu <liubo03@inspur.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Complete the list from "INCK Setting" section in IMX415-AAQR-C
(Rev. E19504, 2019/05/21). For consistency suffix all lane rate values by
UL, which is needed for 2376000000 anyway.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Use the new common CCI register access helpers to replace the private
register access helpers in the imx415 driver.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Use the new common CCI register access helpers to replace the private
register access helpers in the st-vgxy61 driver. This simplifies the
driver by reducing the amount of code.
st-vgxy61 devices use little endianness arrangement, therefore
the driver uses the CCI_REGx_LE registers definition.
Signed-off-by: Julien Massot <julien.massot@collabora.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Ensure the device has been setup correctly before registering the v4l2
async device, thus allowing userspace to access.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Fixes: 4c5211a10039 ("[media] tc358743: register v4l2 asynchronous subdevice")
Cc: stable@vger.kernel.org
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Kickstart 6.9 development cycle.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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Fix spelling mistakes as reported by codespell.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Krzysztof Hałasa <khalasa@piap.pl>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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There is a spelling mistake in a dev_err error message. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Ensure the device has been setup correctly before registering the v4l2
async device, thus allowing userspace to access.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Fixes: 4c5211a10039 ("[media] tc358743: register v4l2 asynchronous subdevice")
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240110090111.458115-1-alexander.stein@ew.tq-group.com
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The recently added driver uses the firmware loader mechanism but causes
a link failure when that is in a loadable module while thp7312 itself
is built-in:
arm-linux-gnueabi-ld: drivers/media/i2c/thp7312.o: in function `thp7312_probe':
thp7312.c:(.text+0x4164): undefined reference to `firmware_upload_register'
Select the required Kconfig symbol. Note that the driver specifically
needs the firmware upload interface that is controlled by CONFIG_FW_UPLOAD,
but there is no link failure when that is disabled because the interfaces
are stubbed out here.
Link: https://lore.kernel.org/linux-media/20240103155811.4092035-1-arnd@kernel.org
Fixes: 7a52ab415b43 ("media: i2c: Add driver for THine THP7312")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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With clang-16, building without COMMON_CLK triggers a range check on
udelay() because of a constant division-by-zero calculation:
ld.lld: error: undefined symbol: __bad_udelay
>>> referenced by mt9m114.c
>>> drivers/media/i2c/mt9m114.o:(mt9m114_power_on) in archive vmlinux.a
In this configuration, the driver already fails to probe, before
this function gets called, so it's enough to suppress the assertion.
Do this by using fsleep(), which turns long delays into sleep() calls
in place of the link failure.
This is probably a good idea regardless to avoid overly long dynamic
udelay() calls on a slow clock.
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Fixes: 24d756e914fc ("media: i2c: Add driver for onsemi MT9M114 camera sensor")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Rename min_buffers_needed into min_queued_buffers and update
the documentation about it.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: Drop the change where min_queued_buffers + 1 buffers would be]
[hverkuil: allocated. Now this patch only renames this field instead of making]
[hverkuil: a functional change as well.]
[hverkuil: Renamed 3 remaining min_buffers_needed occurrences.]
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Use the newly added storage for frame interval in the subdev state to
simplify the driver.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Due to a historical mishap, the v4l2_subdev_frame_interval structure
is the only part of the V4L2 subdev userspace API that doesn't contain a
'which' field. This prevents trying frame intervals using the subdev
'TRY' state mechanism.
Adding a 'which' field is simple as the structure has 8 reserved fields.
This would however break userspace as the field is currently set to 0,
corresponding to V4L2_SUBDEV_FORMAT_TRY, while the corresponding ioctls
currently operate on the 'ACTIVE' state. We thus need to add a new
subdev client cap, V4L2_SUBDEV_CLIENT_CAP_INTERVAL_USES_WHICH, to
indicate that userspace is aware of this new field.
All drivers that implement the subdev .get_frame_interval() and
.set_frame_interval() operations are updated to return -EINVAL when
operating on the TRY state, preserving the current behaviour.
While at it, fix a bad copy&paste in the documentation of the struct
v4l2_subdev_frame_interval_enum 'which' field.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> # for imx-media
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for tegra-video
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The subdev .[gs]_frame_interval are video operations, but they operate
on pads (and even on streams). Not only is this confusing, it causes
practical issues for drivers as the operations don't receive a subdev
state pointer, requiring manual state handling.
To improve the situation, turn the operations into pad operations, and
extend them to receive a state pointer like other pad operations.
While at it, rename the operations to .[gs]et_frame_interval at the same
time to match the naming scheme of other pad operations. This isn't
strictly necessary, but given that all drivers using those operations
need to be modified, handling the rename separately would generate more
churn for very little gain (if at all).
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> # for imx-media
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for tegra-video
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Add a driver for the OmniVision OV64A40 image sensor.
Co-developed-by: Lee Jackson <lee.jackson@arducam.com>
Signed-off-by: Lee Jackson <lee.jackson@arducam.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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In addition to the existing 2592x1940 12-bit mode, introduce support
for 2592x1940 10-bit mode.
Following are the register set which control the 10/12 bit mode setting:
MDBIT 0x319d
ADBIT 0x3050
ADBIT1 0x341c
0x341d
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The V4L2_CID_HBLANK control is marked as readonly and can only be a
single value.
Set the minimum and maximum value to match the mode value.
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Support reporting of the Sensor Native and Active pixel array areas
through the Selection API.
The implementation reports a single target crop only for the mode that
is presently exposed by the driver.
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Provide support for enabling and disabling regulator supplies to control
power to the camera sensor.
While updating the power on function, document that a sleep is
represented as 'T4' in the datasheet power on sequence.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The existing imx335_parse_hw_config function has two paths
that can be taken without reporting to the user the reason
for failing to accept the hardware configuration.
Extend the error reporting paths to identify failures when
probing the device.
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The use of \n as a line ending throughout the driver is inconsistent.
While it is possible for logging messages to automatically have newlines
added by the kernel printk mechanisms, this is specifically to support
continued lines with PR_CONT and the lack of a new line character
indicates that the text is a fragment of a continuation line.
As each of these lines are whole and not fragments, explicitly define the
newline for consistency.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Set effective and active sensor pixel sizes as shown in product
brief[1].
[1]: https://www.mouser.com/datasheet/2/897/ProductBrief_IMX214_20150428-1289331.pdf
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Obtain rotation and orientation information from system firmware and
register the appropriate controls. While at it, update number of
pre-allocated control slots.
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Code refinement.
While at it, don't destroy the mutex not initialized yet if the controls
are initialized incorrectly.
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Code refinement, no functional changes.
Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
[Sakari Ailus: The control handler remains in the context struct still.]
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Introduce new driver for GalaxyCore GC0308, which is a cheap
640x480 with an on-chip ISP sensor sold since 2010. Data is
provided via parallel bus.
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
[Sakari Ailus: Changed MAINTAINERS to match GC2145 entry.]
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Split the resetting of the sensor out of the link_freq_config reg_list
and add a delay after this.
This hopefully fixes the stream sometimes not starting, this was
taken from the ov2740 sensor driver in the out of tree IPU6 driver:
https://github.com/intel/ipu6-drivers/
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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On various Lenovo Thinkpad models with an ov2740 sensor the 360 MHz
link frequency is not supported.
Add support for 180 MHz link frequency, even though this has half the
pixel clock, this supports the same framerate by using half the VTS value
(significantly reducing the amount of empty lines send during vblank).
Normally if there are multiple link-frequencies then the sensor driver
choses the lowest link-frequency still usable for the chosen resolution.
In this case the board supports only 1 link-frequency. Which frequency
is supported is checked in ov2740_check_hwcfg() and then a different
set of supported_modes (using only the supported link-freq) is selected.
The register settings for this were taken from the ov2740 sensor driver
in the out of tree IPU6 driver:
https://github.com/intel/ipu6-drivers/
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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