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path: root/drivers/media/platform/renesas-ceu.c
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2021-02-22Merge tag 'devicetree-for-5.12' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree updates from Rob Herring: - Sync dtc to upstream version v1.6.0-51-g183df9e9c2b9 and build host fdtoverlay - Add kbuild support to build DT overlays (%.dtbo) - Drop NULLifying match table in of_match_device(). In preparation for this, there are several driver cleanups to use (of_)?device_get_match_data(). - Drop pointless wrappers from DT struct device API - Convert USB binding schemas to use graph schema and remove old plain text graph binding doc - Convert spi-nor and v3d GPU bindings to DT schema - Tree wide schema fixes for if/then schemas, array size constraints, and undocumented compatible strings in examples - Handle 'no-map' correctly for already reserved memblock regions * tag 'devicetree-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (35 commits) driver core: platform: Drop of_device_node_put() wrapper of: Remove of_dev_{get,put}() dt-bindings: usb: Change descibe to describe in usbmisc-imx.txt dt-bindings: can: rcar_canfd: Group tuples in pin control properties dt-bindings: power: renesas,apmu: Group tuples in cpus properties dt-bindings: mtd: spi-nor: Convert to DT schema format dt-bindings: Use portable sort for version cmp dt-bindings: ethernet-controller: fix fixed-link specification dt-bindings: irqchip: Add node name to PRUSS INTC dt-bindings: interconnect: Fix the expected number of cells dt-bindings: Fix errors in 'if' schemas dt-bindings: iommu: renesas,ipmmu-vmsa: Make 'power-domains' conditionally required dt-bindings: Fix undocumented compatible strings in examples kbuild: Add support to build overlays (%.dtbo) scripts: dtc: Remove the unused fdtdump.c file scripts: dtc: Build fdtoverlay tool scripts/dtc: Update to upstream version v1.6.0-51-g183df9e9c2b9 scripts: dtc: Fetch fdtoverlay.c from external DTC project dt-bindings: thermal: sun8i: Fix misplaced schema keyword in compatible strings dt-bindings: iio: dac: Fix AD5686 references ...
2021-02-06media: v4l2-async: Improve v4l2_async_notifier_add_*_subdev() APILaurent Pinchart
The functions that add an async subdev to an async subdev notifier take as an argument the size of the container structure they need to allocate. This is error prone, as passing an invalid size will not be caught by the compiler. Wrap those functions in macros that take a container type instead of a size, and cast the returned pointer to the desired type. The compiler will catch mistakes if the incorrect type is passed to the macro, as the assignment types won't match. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Helen Koike <helen.koike@collabora.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> (core+ti-cal) Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-02-06media: renesas-ceu: Use v4l2_async_notifier_add_*_subdevEzequiel Garcia
The use of v4l2_async_notifier_add_subdev will be discouraged. Drivers are instead encouraged to use a helper such as v4l2_async_notifier_add_i2c_subdev. This fixes a misuse of the API, as v4l2_async_notifier_add_subdev should get a kmalloc'ed struct v4l2_async_subdev, removing some boilerplate code while at it. Use the appropriate helper: v4l2_async_notifier_add_i2c_subdev or v4l2_async_notifier_add_fwnode_remote_subdev, which handles the needed setup, instead of open-coding it. Using v4l2-async to allocate the driver-specific structs, requires to change struct ceu_subdev so the embedded struct v4l2_async_subdev is now the first element. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-01-26media: renesas-ceu: Use of_device_get_match_data()Stephen Boyd
This driver can use the replacement API instead of calling of_match_device() and then dereferencing the pointer that is returned. This nicely avoids referencing the match table when it is undefined with configurations where CONFIG_OF=n. Signed-off-by: Stephen Boyd <swboyd@chromium.org> Acked-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jacopo Mondi <jacopo@jmondi.org> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: <linux-media@vger.kernel.org> Cc: <linux-renesas-soc@vger.kernel.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210123034428.2841052-2-swboyd@chromium.org
2020-08-29media: Use fallthrough pseudo-keywordGustavo A. R. Silva
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>
2020-02-24media: media/platform: rename VFL_TYPE_GRABBER to _VIDEOHans Verkuil
'GRABBER' is a weird name, all other types map to the /dev device names. Rename to 'VIDEO' to be consistent with the other types. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2019-08-07media: Remove dev_err() usage after platform_get_irq()Stephen Boyd
We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-05media: v4l2: Get rid of ->vidioc_enum_fmt_vid_{cap, out}_mplaneBoris Brezillon
Support for multiplanar and singleplanar formats is mutually exclusive, at least in practice. In our attempt to unify support for support for mplane and !mplane in v4l, let's get rid of the ->vidioc_enum_fmt_{vid,out}_cap_mplane() hooks and call ->vidioc_enum_fmt_{vid,out}_cap() instead. Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> [hverkuil-cisco@xs4all.nl: fix typos: pirv -> priv and prov -> priv] Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-10-04media: renesas-ceu: Use default mbus settingsJacopo Mondi
As the v4l2-fwnode now allows drivers to set defaults, and eventually override them by specifying properties in DTS, use defaults for the CEU driver. Also remove endpoint properties from the gr-peach-audiocamerashield as they match the defaults now specified in the driver code (h/vsync-active and bus-width) or are not relevant to the interface as they cannot be configured (pclk-sample). 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+samsung@kernel.org>
2018-10-04media: v4l: fwnode: Initialise the V4L2 fwnode endpoints to zeroSakari Ailus
Initialise the V4L2 fwnode endpoints to zero in all drivers using v4l2_fwnode_endpoint_parse(). This prepares for setting default endpoint flags as well as the bus type. Setting bus type to zero will continue to guess the bus among the guessable set (parallel, Bt.656 and CSI-2 D-PHY). Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Tested-by: Steve Longerbeam <steve_longerbeam@mentor.com> Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-10-04media: platform: Switch to v4l2_async_notifier_add_subdevSteve Longerbeam
Switch all media platform drivers to call v4l2_async_notifier_add_subdev() to add asd's to a notifier, in place of referencing the notifier->subdevs[] array. These drivers also must now call v4l2_async_notifier_init() before adding asd's to their notifiers. There may still be cases where a platform driver maintains a list of asd's that is a duplicate of the notifier asd_list, in which case its possible the platform driver list can be removed, and can reference the notifier asd_list instead. One example of where a duplicate list has been removed in this patch is xilinx-vipp.c. If there are such cases remaining, those drivers should be optimized to remove the duplicate platform driver asd lists. None of the changes to the platform drivers in this patch have been tested. Verify that the async subdevices needed by the platform are bound at load time, and that the driver unloads and reloads correctly with no memory leaking of asd objects. Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11media: use strscpy() instead of strlcpy()Mauro Carvalho Chehab
The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL terminated strings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-06-28media: renesas-ceu: Add support for YUYV permutationsJacopo Mondi
Add support for YUYV permutations, passing down to the subdevice the media bus format with components ordering that reflect the output pixel format one. Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25media: renesas-ceu: fix compiler warningHans Verkuil
In function 'strncpy', inlined from 'ceu_notify_complete' at drivers/media/platform/renesas-ceu.c:1378:2: include/linux/string.h:246:9: warning: '__builtin_strncpy' output truncated before terminating nul copying 11 bytes from a string of the same length [-Wstringop-truncation] return __builtin_strncpy(p, q, size); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Cc: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11media: dt-bindings: media: renesas-ceu: Add R-Mobile R8A7740Jacopo Mondi
Add R-Mobile A1 R8A7740 SoC to the list of compatible values for the CEU unit. Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-09media: renesas-ceu: Set mbus_fmt on subdev operationsJacopo Mondi
The renesas-ceu driver intializes the desired mbus_format at 'complete' time, inspecting the supported subdevice ones, and tuning some parameters to produce the requested memory format from what the sensor can produce. Although, the initially selected mbus_format was not provided to the subdevice during set_fmt and try_fmt operations, providing instead a '0' mbus format code. As long as the sensor defaults to a compatible mbus_format when an invalid code as '0' is provided, capture operations work correctly. If the subdevice defaults to an unsupported format (eg. some RGB permutations) capture does not work properly due to a mismatch on the expected and received image format on the wire. Fix that by re-using the initially selected mbus_format code during set_fmt and try_fmt subdevice operation calls. Tested by printing out the format selection procedure with ov7670 sensor. Before this patch: [ 0.866001] ov7670_try_fmt_internal -- Looking for mbus_code 0x0000 [ 0.870882] ov7670_try_fmt_internal -- Try mbus_code 0x2008 [ 0.876336] ov7670_try_fmt_internal -- Try mbus_code 0x1002 [ 0.881387] ov7670_try_fmt_internal -- Try mbus_code 0x1008 [ 0.886537] ov7670_try_fmt_internal -- Try mbus_code 0x3001 [ 0.891584] ov7670_try_fmt_internal -- mbus_code defaulted to 0x2008 With this patch applied: [ 0.867015] ov7670_try_fmt_internal -- Looking for mbus_code 0x2008 [ 0.873205] ov7670_try_fmt_internal -- Try mbus_code 0x2008: match Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-03-06media: renesas-ceu: mark PM functions as __maybe_unusedArnd Bergmann
The PM runtime operations are unused when CONFIG_PM is disabled, leading to a harmless warning: drivers/media/platform/renesas-ceu.c:1003:12: error: 'ceu_runtime_suspend' defined but not used [-Werror=unused-function] static int ceu_runtime_suspend(struct device *dev) ^~~~~~~~~~~~~~~~~~~ drivers/media/platform/renesas-ceu.c:987:12: error: 'ceu_runtime_resume' defined but not used [-Werror=unused-function] static int ceu_runtime_resume(struct device *dev) ^~~~~~~~~~~~~~~~~~ This adds a __maybe_unused annotation to shut up the warning. Fixes: 32e5a70dc8f4 ("media: platform: Add Renesas CEU driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06media: platform: renesas-ceu: Fix CSTRST_CPON maskJacopo Mondi
The CSTRST_CPON mask was wrongly assigned to BIT(1) instead of BIT(0). Fix that by changing the mask opportunely. Reported-by: Dylan Laduranty <dylan.laduranty@mesotic.com> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26media: platform: Add Renesas CEU driverJacopo Mondi
Add driver for Renesas Capture Engine Unit (CEU). The CEU interface supports capturing 'data' (YUV422) and 'images' (NV[12|21|16|61]). This driver aims to replace the soc_camera-based sh_mobile_ceu one. Tested with ov7670 camera sensor, providing YUYV_2X8 data on Renesas RZ platform GR-Peach. Tested with ov7725 camera sensor on SH4 platform Migo-R. Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> [hans.verkuil@cisco.com: added two 'fall-through' comments] Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>