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path: root/drivers/media/platform/vsp1/vsp1_drv.c
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2016-04-13[media] v4l: vsp1: Use pipeline display list to decide how to write to modulesLaurent Pinchart
This allows getting rid of the vsp1_device::use_dl field. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: VSPD instances have no LUT on Gen3Laurent Pinchart
Remove the HAS_LUT flag in the corresponding device information entry. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Configure device based on IP versionLaurent Pinchart
The IP version number carries enough information to identify the exact device instance features. Drop the related DT properties and use the IP version instead. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Add display list supportTakashi Saito
Display lists contain lists of registers and associated values to be applied atomically by the hardware. They lower the pressure on interrupt processing delays when reprogramming the device as settings can be prepared well in advance and queued to the hardware without waiting for the end of the current frame. Display list support is currently limited to the DRM pipeline. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Add support for the R-Car Gen3 VSP2Laurent Pinchart
Add DT compatible strings for the VSP2 instances found in the R-Car Gen3 SoCs and support them in the vsp1 driver. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Add VSP+DU supportLaurent Pinchart
Implement internal control of the VSP pipeline to be used by the DU DRM/KMS driver when using the VSP as an internal composer handled through DRM/KMS only. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Don't validate links when the userspace API is disabledLaurent Pinchart
As the pipeline is configured internally by the driver when the userspace API is disabled its configuration can be trusted and link validation isn't needed. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Make the userspace API optionalLaurent Pinchart
The R-Car Gen3 SoCs include VSP instances dedicated to the DU that will be controlled entirely by the rcar-du-drm driver through the KMS API. To support that use case make the userspace V4L2 API optional. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Make the BRU optionalLaurent Pinchart
Not all VSP instances have a BRU on R-Car Gen3, make it optional. Set the feature unconditionally for now, this will be fixed when adding Gen3 support. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Make number of BRU inputs configurableLaurent Pinchart
The R-Car Gen3 family has 5-inputs BRUs, support them by making the number of BRU inputs configurable. As the driver assumes that the number of BRU inputs is equal to the number of RPFs, replace the BRU_MAX_INPUTS macro with VSP1_MAX_RPF to make the assumption apparent. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Extract link creation to separate functionLaurent Pinchart
Link creation will be handled differently for the DU pipeline. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Move vsp1_video pointer from vsp1_entity to vsp1_rwpfLaurent Pinchart
Only RPFs and WPFs can be associated with video nodes, don't waste memory by storing the video pointer in all entities. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Support VSP1 instances without any UDSLaurent Pinchart
Not all VSP1 instances include a UDS. Make the renesas,#uds DT property optional and accept a number of UDS equal to 0 as valid. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Move video device out of struct vsp1_rwpfLaurent Pinchart
To make the video device nodes optional we need to decouple the [rw]pf instances from the video devices. Move video devices out of struct vsp1_rwpf and instantiate them dynamically in the core driver code. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Group all link creation code in a single fileLaurent Pinchart
There's no need to spread the code across multiple source files. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25[media] v4l: vsp1: Fix wrong entities links creationJavier Martinez Canillas
The Media Control framework now requires entities to be registered with the media device before creating links so commit c7621b3044f7 ("[media] v4l: vsp1: separate links creation from entities init") separated link creation from entities init. But unfortunately that patch introduced a regression since wrong links were created causing a boot failure on Renesas boards. This patch fixes the boot issue and also the media graph was compared by Geert Uytterhoeven to make sure that the driver changes required by the Media Control framework next generation did not affect the graph. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] media-device: split media initialization and registrationJavier Martinez Canillas
The media device node is registered and so made visible to user-space before entities are registered and links created which means that the media graph obtained by user-space could be only partially enumerated if that happens too early before all the graph has been created. To avoid this race condition, split the media init and registration in separate functions and only register the media device node when all the pending subdevices have been registered, either explicitly by the driver or asynchronously using v4l2_async_register_subdev(). The media_device_register() had a check for drivers not filling dev and model fields but all drivers in mainline set them and not doing it will be a driver bug so change the function return to void and add a BUG_ON() for dev being NULL instead. Also, add a media_device_cleanup() function that will destroy the graph_mutex that is initialized in media_device_init(). [mchehab@osg.samsung.com: Fix compilation if !CONFIG_MEDIA_CONTROLLER and remove two warnings added by this changeset] Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] v4l: vsp1: use else if instead of continue when creating linksJavier Martinez Canillas
The for loop in the vsp1_create_entities() function that create the links, checks the entity type and call the proper link creation function but then it uses continue to force the next iteration of the loop to take place and skipping code in between that creates links for different entities types. It is more readable and easier to understand if the if else constructs is used instead of the continue statement. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] v4l: vsp1: remove pads prefix from *_create_pads_links()Javier Martinez Canillas
The functions that create entities links are called *_create_pads_links() but the "pads" prefix is redundant since the driver doesn't handle any other kind of link so it can be removed. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] v4l: vsp1: separate links creation from entities initJavier Martinez Canillas
The vsp1 driver initializes the entities and creates the pads links before the entities are registered with the media device. This doesn't work now that object IDs are used to create links so the media_device has to be set. Split out the pads links creation from the entity initialization so are made after the entities registration. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] v4l: vsp1: create pad links after subdev registrationJavier Martinez Canillas
The vsp1 driver creates the pads links before the media entities are registered with the media device. This doesn't work now that object IDs are used to create links so the media_device has to be set. Move entities registration logic before pads links creation. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] media: rename the function that create pad linksMauro Carvalho Chehab
With the new API, a link can be either between two PADs or between an interface and an entity. So, we need to use a better name for the function that create links between two pads. So, rename the such function to media_create_pad_link(). No functional changes. This patch was created via this shell script: for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f) $(find include/ -name '*.h' -type f) ; do sed s,media_entity_create_link,media_create_pad_link,g <$i >a && mv a $i; done Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Tested-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-06[media] v4l: vsp1: Fix Suspend-to-RAMSei Fumizono
Fix Suspend-to-RAM so that VSP1 driver continues to work after resuming. In detail, - Fix the judgment of ref count in resuming. - Add stopping VSP1 during suspend. [Refactor the suspend and resume code to lower suspend delay] Signed-off-by: Sei Fumizono <sei.fumizono.jw@hitachi-solutions.com> Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-23[media] v4l: vsp1: Remove support for platform dataLaurent Pinchart
Now that all platforms instantiate the VSP1 through DT, platform data support isn't needed anymore. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-20media: platform: vsp1: drop owner assignment from platform_driversWolfram Sang
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-07-17[media] v4l: vsp1: Propagate vsp1_device_get errors to the callersLaurent Pinchart
Modify the vsp1_device_get() function to return an error code instead of a pointer to the VSP1 device, and use the return value in the callers. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-17[media] v4l: vsp1: Fix typosLaurent Pinchart
Several macros were mistakenly prefixed with VPS1 instead of VSP1. Fix them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-04-23[media] v4l: vsp1: Add DT supportLaurent Pinchart
Implement support for the VSP1 DT bindings in the VSP1 driver. The driver now first retrieves platform data either from the platform data pointer or by reading the device tree node, and then validates it regardless of the platform data source. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-04-23[media] v4l: vsp1: Add BRU supportLaurent Pinchart
The Blend ROP Unit performs blending and ROP operations for up to four sources. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-04-23[media] v4l: vsp1: Remove unexisting rt clocksLaurent Pinchart
The VSP1 has no rt clock. Remove them from the driver. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-12[media] v4l: vsp1: Update copyright noticeLaurent Pinchart
The "Renesas Corporation" listed in the copyright notice doesn't exist. Replace it with "Renesas Electronics Corporation" and update the copyright years. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-11[media] v4l: vsp1: Add LUT supportLaurent Pinchart
The Look-Up Table looks up values in 8-bit indexed tables separately for each color component. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-11[media] v4l: vsp1: Add SRU supportLaurent Pinchart
The Super Resolution Unit performs super resolution processing with optional upscaling by a factor of two. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-11[media] v4l: vsp1: Add HST and HSI supportLaurent Pinchart
The Hue Saturation value Transform and Hue Saturation value Inverse transform entities convert from RGB to HSV and back. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-29[media] media_tree: Fix spelling errorsJonathan McCrohan
Fix various spelling errors in strings and comments throughout the media tree. The majority of these were found using Lucas De Marchi's codespell tool. [m.chehab@samsung.com: discard hunks with conflicts] Signed-off-by: Jonathan McCrohan <jmccrohan@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-08-28[media] v4l: vsp1: Add support for RT clockLaurent Pinchart
The VSPR and VSPS instances use two clocks, the VSP1 system clock and the VSP1 realtime clock. Both of them need to be enabled to access the VSP1 registers. Add support for an optional RT clock and enable/disable it along with the system clock. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-08-28[media] v4l: vsp1: Initialize media device bus_info fieldLaurent Pinchart
Fill bus_info with the VSP1 platform device name Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-08-24[media] vsp1: Fix a sparse warningMauro Carvalho Chehab
As reported by: kbuild test robot <fengguang.wu@intel.com>: drivers/media/platform/vsp1/vsp1_drv.c:434:21: sparse: cast removes address space of expression 433 vsp1->mmio = devm_ioremap_resource(&pdev->dev, io); > 434 if (IS_ERR((void *)vsp1->mmio)) > 435 return PTR_ERR((void *)vsp1->mmio); There's no need to convert it to void *. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-08-18[media] vsp1: Use the maximum number of entities defined in platform dataKatsuya Matsubara
The VSP1 driver allows to define the maximum number of each module such as RPF, WPF, and UDS in a platform data definition. This suppresses operations for nonexistent or unused modules. Signed-off-by: Katsuya Matsubara <matsu@igel.co.jp> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-08-18[media] vsp1: Fix lack of the sink entity registration for enabled linksKatsuya Matsubara
Each source entity maintains a pointer to the counterpart sink entity while an enabled link connects them. It should be managed by the setup_link callback in the media controller framework at runtime. However, enabled links which connect RPFs and WPFs that have an equivalent index number are created during initialization. This registers the pointer to a sink entity from the source entity when an enabled link is created. Signed-off-by: Katsuya Matsubara <matsu@igel.co.jp> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-08-18[media] v4l: Renesas R-Car VSP1 driverLaurent Pinchart
The VSP1 is a video processing engine that includes a blender, scalers, filters and statistics computation. Configurable data path routing logic allows ordering the internal blocks in a flexible way. Due to the configurable nature of the pipeline the driver implements the media controller API and doesn't use the V4L2 mem-to-mem framework, even though the device usually operates in memory to memory mode. Only the read pixel formatters, up/down scalers, write pixel formatters and LCDC interface are supported at this stage. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>