kernel.git/drivers/media/pci, branch linux-4.20.y

media: cx23885: only reset DMA on problematic CPUs

2019-01-13T08:24:04Z

commit 4bd46aa0353e022c2401a258e93b107880a66533 upstream. It is reported that commit 95f408bbc4e4 ("media: cx23885: Ryzen DMA related RiSC engine stall fixes") caused regresssions with other CPUs. Ensure that the quirk will be applied only for the CPUs that are known to cause problems. A module option is added for explicit control of the behaviour. Fixes: 95f408bbc4e4 ("media: cx23885: Ryzen DMA related RiSC engine stall fixes") Signed-off-by: Brad Love Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman

media: ipu3-cio2: Use cio2_queues_exit

2018-11-06T12:11:59Z

The ipu3-cio2 driver has a function to tear down video devices as well as the associated video buffer queues. Use it. Signed-off-by: Sakari Ailus Tested-by: Bingbu Cao Reviewed-by: Bingbu Cao Signed-off-by: Mauro Carvalho Chehab

media: ipu3-cio2: Unregister device nodes first, then release resources

2018-11-06T12:11:36Z

While there are issues related to object lifetime management, unregister the media device first, followed immediately by other device nodes when the driver is being unbound. Only then the resources needed by the driver may be released. This is slightly safer. Signed-off-by: Sakari Ailus Tested-by: Bingbu Cao Reviewed-by: Bingbu Cao Signed-off-by: Mauro Carvalho Chehab

Merge tag 'media/v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2018-10-31T17:53:29Z

Pull new experimental media request API from Mauro Carvalho Chehab: "A new media request API This API is needed to support device drivers that can dynamically change their parameters for each new frame. The latest versions of Google camera and codec HAL depends on such feature. At this stage, it supports only stateless codecs. It has been discussed for a long time (at least over the last 3-4 years), and we finally reached to something that seem to work. This series contain both the API and core changes required to support it and a new m2m decoder driver (cedrus). As the current API is still experimental, the only real driver using it (cedrus) was added at staging[1]. We intend to keep it there for a while, in order to test the API. Only when we're sure that this API works for other cases (like encoders), we'll move this driver out of staging and set the API into a stone. [1] We added support for the vivid virtual driver (used only for testing) to it too, as it makes easier to test the API for the ones that don't have the cedrus hardware" * tag 'media/v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (53 commits) media: dt-bindings: Document the Rockchip VPU bindings media: platform: Add Cedrus VPU decoder driver media: dt-bindings: media: Document bindings for the Cedrus VPU driver media: v4l: Add definition for the Sunxi tiled NV12 format media: v4l: Add definitions for MPEG-2 slice format and metadata media: videobuf2-core: Rework and rename helper for request buffer count media: v4l2-ctrls.c: initialize an error return code with zero media: v4l2-compat-ioctl32.c: add missing documentation for a field media: media-request: update documentation media: media-request: EPERM -> EACCES/EBUSY media: v4l2-ctrls: improve media_request_(un)lock_for_update media: v4l2-ctrls: use media_request_(un)lock_for_access media: media-request: add media_request_(un)lock_for_access media: vb2: set reqbufs/create_bufs capabilities media: videodev2.h: add new capabilities for buffer types media: buffer.rst: only set V4L2_BUF_FLAG_REQUEST_FD for QBUF media: v4l2-ctrls: return -EACCES if request wasn't completed media: media-request: return -EINVAL for invalid request_fds media: vivid: add request support media: vivid: add mc ...

media: cx23885: make const array addr_list static

2018-10-09T12:02:15Z

The const array addr_list can be made static, saves populating it on the stack and will make it read-only. Signed-off-by: Colin Ian King Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: ivtv: make const array addr_list static

2018-10-09T12:02:00Z

media: bttv-input: make const array addr_list static

2018-10-09T12:00:50Z

media: cx18: Don't check for address of video_dev

2018-10-08T16:02:08Z

Clang warns that the address of a pointer will always evaluated as true in a boolean context. drivers/media/pci/cx18/cx18-driver.c:1255:23: warning: address of 'cx->streams[i].video_dev' will always evaluate to 'true' [-Wpointer-bool-conversion] if (&cx->streams[i].video_dev) ~~ ~~~~~~~~~~~~~~~^~~~~~~~~ 1 warning generated. Check whether v4l2_dev is null, not the address, so that the statement doesn't fire all the time. This check has been present since 2009, introduced by commit 21a278b85d3c ("V4L/DVB (11619): cx18: Simplify the work handler for outgoing mailbox commands") Reported-by: Nick Desaulniers Signed-off-by: Nathan Chancellor Reviewed-by: Nick Desaulniers Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l: mediabus: Recognise CSI-2 D-PHY and C-PHY

2018-10-04T20:06:15Z

The CSI-2 bus may use either D-PHY or C-PHY. Make this visible in media bus enum. Signed-off-by: Sakari Ailus Tested-by: Steve Longerbeam Tested-by: Jacopo Mondi Signed-off-by: Mauro Carvalho Chehab

media: platform: Switch to v4l2_async_notifier_add_subdev

2018-10-04T19:55:38Z

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 Signed-off-by: Steve Longerbeam Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab