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2020-09-01media: Documentation: media: Document how to write camera sensor driversSakari Ailus3-0/+137
While we have had some example drivers, there has been up to date no formal documentation on how camera sensor drivers should be written; what are the practices, why, and where they apply. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: ov7740: use SCCB regmapRaag Jadav2-10/+2
Make use of SCCB APIs for regmap operations. Remove i2c_check_functionality as devm_regmap_init_sccb does it for us. Signed-off-by: Raag Jadav <raagjadav@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: imx274: fix frame interval handlingHans Verkuil1-3/+5
1) the numerator and/or denominator might be 0, in that case fall back to the default frame interval. This is per the spec and this caused a v4l2-compliance failure. 2) the updated frame interval wasn't returned in the s_frame_interval subdev op. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: m5mols: Check function pointer in m5mols_sensor_powerTom Rix1-1/+2
clang static analysis reports this error m5mols_core.c:767:4: warning: Called function pointer is null (null dereference) [core.CallAndMessage] info->set_power(&client->dev, 0); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In other places, the set_power ptr is checked. So add a check. Fixes: bc125106f8af ("[media] Add support for M-5MOLS 8 Mega Pixel camera ISP") Signed-off-by: Tom Rix <trix@redhat.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: i2c: fix error check on max9286_read callColin Ian King1-1/+2
Currently the error return from the call to max9286_read is masked with 0xf0 so the following check for a negative error return is never true. Fix this by checking for an error first, then masking the return value for subsequent conflink_mask checking. Addresses-Coverity: ("Logically dead code") Fixes: 66d8c9d2422d ("media: i2c: Add MAX9286 driver") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: omap: Replace HTTP links with HTTPS onesAlexander A. Klimov2-2/+2
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> 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+huawei@kernel.org>
2020-09-01media: ov5640: Correct Bit Div register in clock tree diagramPaul Kocialkowski1-1/+1
Although the code is correct and doing the right thing, the clock diagram showed the wrong register for the bit divider, which had me doubting the understanding of the tree. Fix this to avoid doubts in the future. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Fixes: aa2882481cada ("media: ov5640: Adjust the clock based on the expected rate") Acked-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: ipu3.rst: Format media-ctl and yavta commands as code blocksJordan Hand1-49/+55
Fix improper line breaks and format all example yavta and media-ctl commands as code blocks to improve readability. Signed-off-by: Jordan Hand <jorhand@linux.microsoft.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: MAINTAINERS: ov5647: Replace maintainerJacopo Mondi1-1/+2
Since the current maintainer email address bounces back, replace the entry and make myself and Dave Stevenson maintainers of the driver. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Acked-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: dt-bindings: media: ov5647: Document clock-noncontinuousJacopo Mondi1-0/+5
Document the optional clock-noncontinuous endpoint property that allows enabling MIPI CSI-2 non-continuous clock operations. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: dt-bindings: media: ov5647: Document pwdn-gpiosJacopo Mondi1-0/+6
Document in dt-schema bindings for the ov5647 sensor the optional 'pwdn-gpios' property. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: dt-bindings: media: ov5647: Convert to json-schemaJacopo Mondi3-35/+78
Convert the ov5647 image sensor bindings to DT schema and add the file entry to MAINTAINERS. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: intel-ipu3: Fix code style issueRahul Gottipati1-7/+7
This fixes a multiline comment style warning as found by checkpatch.pl. Signed-off-by: Rahul Gottipati <rahul.blr97@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: MAINTAINERS: Fix email typo and correct name of TianshuBingbu Cao1-3/+3
Fix the typo in email address of Tianshu Qiu and correct the name. Reported-by: Bjorn Helgaas <helgaas@kernel.org> Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com> Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: i2c: ov2740: get OTP data ready before nvmem registrationBingbu Cao1-12/+12
The OTP data was not ready after registered as nvmem device, it is risky as the nvmem read may happen once the device exists, this patch get the OTP data ready before registering the nvmem device. OTP data missing should not break the normal camera sensor probe, so use a warning instead of an error message. Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Qingwu Zhang <qingwu.zhang@intel.com> Suggested-by: Sergey Senozhatsky <senozhatsky@chromium.org> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: radio: si476x: no need to check return value of debugfs_create functionsGreg Kroah-Hartman1-53/+13
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: sti: no need to check return value of debugfs_create functionsGreg Kroah-Hartman4-48/+12
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: mtk-vpu: no need to check return value of debugfs_create functionsGreg Kroah-Hartman1-5/+0
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: exynos4-is: no need to check return value of debugfs_create functionsGreg Kroah-Hartman1-13/+4
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: coda: no need to check return value of debugfs_create functionsGreg Kroah-Hartman1-5/+0
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: cec: no need to check return value of debugfs_create functionsGreg Kroah-Hartman2-21/+8
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: dt-bindings: media: Correct samsung-fimc parallel port numberingJonathan Bakker1-3/+3
The parallel port nodes should be numbered 1 and 2, not 0 and 1 for A and B respectively. The driver has always implemented 1 and 2 and the in-tree Goni DTS uses 1 as port A as well. Update the documentation to match this behaviour. Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: exynos4-is: Handle duplicate calls to vidioc_streamoffJonathan Bakker1-2/+5
vidioc_streamoff can be called multiple times from userspace, but we should only call media_pipeline_stop when we're actually setup. This became more noticeable after commit 2a2599c66368 ("[media] media: entity: Catch unbalanced media_pipeline_stop calls") was merged as it added a WARN for unbalanced calls to media_pipeline_stop. Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: exynos4-is: Remove unused struct member input_indexJonathan Bakker1-2/+0
This is no longer used since the conversion to DT Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: exynos4-is: Remove inh_sensor_ctrlsJonathan Bakker2-15/+1
This is a no-op as it is never set and is a remnant from non-DT days that can be safely removed. Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: exynos4-is: Add support for multiple sensors on one portJonathan Bakker1-9/+19
On some devices, there may be multiple camera sensors attached to the same port. Make sure we probe all of them, not just the first one. Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: exynos4-is: Use global num_sensors rather than local indexJonathan Bakker1-7/+4
Instead of keeping a local copy of how many sensors we've probed (which may not even properly represent the number of sensors probed if we have a port without a sensor), use the global num_sensors counter that has the actual number used. This will also make it easier to add support for multiple sensors being connected to the same port. Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: exynos4-is: Properly set JPEG options for parallel portsJonathan Bakker1-0/+7
Commit ee7160e57c98 ("[media] s5p-fimc: Add support for JPEG capture") added support for JPEG capture, but missed setting a register when the parallel port was used rather than the CSIS device. Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: exynos4-is: Correct missing entity function initializationJonathan Bakker1-0/+1
Commit bae4500399c4 ("[media] exynos4-is: Add missing entity function initialization") tried to suppress the warnings such as s5p-fimc-md camera: Entity type for entity FIMC.0 was not initialized! However, this missed setting for the subdev. Set it now to avoid the ugly warnings on boot. Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: exynos4-is: Fix nullptr when no CSIS device presentJonathan Bakker1-1/+16
Not all devices use the CSIS device, some may use the FIMC directly in which case the CSIS device isn't registered. This leads to a nullptr exception when starting the stream as the CSIS device is always referenced. Instead, if getting the CSIS device fails, try getting the FIMC directly to check if we are using the subdev API Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: exynos4-is: Request syscon only if ISP writeback is presentTomasz Figa1-3/+5
On FIMC variants which don't have writeback channel, there is no need to access system registers. This patch makes the driver request sysreg regmap conditionally depending on whether writeback is supported. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: exynos4-is: Remove static driver data for S5PV210 FIMC variantsJonathan Bakker1-59/+0
The S5PV210 platform only supports device tree based booting where the FIMC variant data is parsed directly from the device tree, hence the now unused static data can be removed. Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: hantro: postproc: Fix motion vector space allocationEzequiel Garcia1-1/+3
When the post-processor is enabled, the driver allocates "shadow buffers" which are used for the decoder core, and exposes the post-processed buffers to userspace. For this reason, extra motion vector space has to be allocated on the shadow buffers, which the driver wasn't doing. Fix it. This fix should address artifacts on high profile bitstreams. Fixes: 8c2d66b036c77 ("media: hantro: Support color conversion via post-processing") Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: hantro: h264: Get the correct fallback reference bufferEzequiel Garcia1-1/+1
If the bitstream and the application are incorrectly configuring the reference pictures, the hardware will need to fallback to using some other reference picture. When the post-processor is enabled, the fallback buffer should be a shadow buffer (postproc.dec_q), and not a CAPTURE queue buffer, since the latter is post-processed and not really the output of the decoder core. Fixes: 8c2d66b036c77 ("media: hantro: Support color conversion via post-processing") Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01tm6000: drop unnecessary list_emptyJulia Lawall1-15/+9
list_for_each_entry is able to handle an empty list. The only effect of avoiding the loop is not initializing the index variable. Drop list_empty tests in cases where these variables are not used. Note that list_for_each_entry is defined in terms of list_first_entry, which indicates that it should not be used on an empty list. But in list_for_each_entry, the element obtained by list_first_entry is not really accessed, only the address of its list_head field is compared to the address of the list head, so the list_first_entry is safe. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) <smpl> @@ expression x,e; iterator name list_for_each_entry; statement S; identifier i; @@ -if (!(list_empty(x))) { list_for_each_entry(i,x,...) S - } ... when != i ? i = e </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01saa7134: drop unnecessary list_emptyJulia Lawall1-8/+6
list_for_each_safe is able to handle an empty list. The only effect of avoiding the loop is not initializing the index variable. Drop list_empty tests in cases where these variables are not used. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) <smpl> @@ expression x,e; iterator name list_for_each_safe; statement S; identifier i,j; @@ -if (!(list_empty(x))) { list_for_each_safe(i,j,x) S - } ... when != i when != j ( i = e; | ? j = e; ) </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01media: cx231xx: drop unnecessary list_emptyJulia Lawall1-10/+6
list_for_each_entry is able to handle an empty list. The only effect of avoiding the loop is not initializing the index variable. Drop list_empty tests in cases where these variables are not used. Note that list_for_each_entry is defined in terms of list_first_entry, which indicates that it should not be used on an empty list. But in list_for_each_entry, the element obtained by list_first_entry is not really accessed, only the address of its list_head field is compared to the address of the list head, so the list_first_entry is safe. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) <smpl> @@ expression x,e; iterator name list_for_each_entry; statement S; identifier i; @@ -if (!(list_empty(x))) { list_for_each_entry(i,x,...) S - } ... when != i ? i = e </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: Use fallthrough pseudo-keywordGustavo A. R. Silva55-94/+94
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: staging: rkisp1: uapi: remove __packedHelen Koike1-38/+38
The driver access struct's fields one by one, they are not blindly copied to/from the hardware, so we can remove __packed from the structs. Tested on Scarlet Chromebook with ChromeOS stack and verified images with the Camera app. Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: staging: rkisp1: params: don't release lock in isr before buffer is doneDafna Hirschfeld1-4/+4
In the irq handler 'rkisp1_params_isr', the lock 'config_lock' should be held as long as the current buffer is used. Otherwise the stop_streaming calback might remove it from the list and pass it to userspace while it is referenced in the irq handler. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: staging: rkisp1: params: use rkisp1_param_set_bits to set reg in isrDafna Hirschfeld1-4/+1
replace a read and write of RKISP1_CIF_ISP_CTRL register in the isr with the 'rkisp1_param_set_bits' function that does that. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: staging: rkisp1: call params isr only upon frame outDafna Hirschfeld3-23/+20
Currently the params isr is called and then returned when isp-frame interrupt is not set. This condition is already tested in the isp's isr so move the call under the condition in the isp's isr. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: staging: rkisp1: change type of fields in 'rkisp1_cif_isp_lsc_config' ↵Dafna Hirschfeld1-8/+8
from u32 to u16 The fields in struct 'rkisp1_cif_isp_lsc_config' need to hold values of 12 bits, therefore it is enough to declare them as u16. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: staging: rkisp1: replace two identical macros with oneDafna Hirschfeld2-7/+6
The two macros RKISP1_CIF_ISP_LSC_{GRAD/SIZE}_TBL_SIZE have the same value which is the number of sectors in the grads and size parameters. Therefore there is no need for two different macros. Replace them with one macro RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE. Also use the macro when iterating the arrays instead of hardcoded '4'. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: staging: rkisp1: set "*_data_tbl" fields in rkisp1_cif_isp_lsc_config ↵Dafna Hirschfeld3-23/+19
as 2D arrays Currently the fields '*_data_tbl' in the struct 'rkisp1_cif_isp_lsc_config' are one dimensional arrays of size 290. The entries are accessed in a nested loop by summing two indexes for the rows and columns. Therefore it fits better to define the arrays as two dimensional arrays of size 17x17. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: Documentation: v4l: move table of v4l2_pix_format(_mplane) flags to ↵Dafna Hirschfeld3-18/+18
pixfmt-v4l2.rst The table of the flags of the structs v4l2_pix_format(_mplane) is currently in pixfmt-reserved.rst which is wrong, it should be in pixfmt-v4l2.rst Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: staging: rkisp1: improve documentation of rkisp1-common.hDafna Hirschfeld2-44/+190
Add more detailed documentation of the structs and functions in rkisp1-common.h Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: staging: rkisp1: group declaration of similar functions togetherDafna Hirschfeld1-7/+8
In file rkisp1-common.h, group declaration of register/unregister functions together and group other functions together to make the code easier to read. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: staging: rkisp1: remove declaration of unimplemented function ↵Dafna Hirschfeld1-2/+0
'rkisp1_params_isr_handler' The file rkisp1-common.h has a function declarion 'rkisp1_params_isr_handler' that is not implemented. Remove it. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-29media: staging: rkisp1: unify (un)register functions to have the same parametersDafna Hirschfeld5-31/+24
The different register/unregister functions receive different parameters. This patch unify them so they all receive just 'struct *rkisp1_device' as parameter. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>