Hi, This is v7 of the series, the previous one is: https://lore.kernel.org/linux-media/20210427124523.990938-1-tomi.valkeinen@xxxxxxxxxxxxxxxx/ In this version I have changed the approach to multiplexed streams, and I went with the approach described in the RFC I sent: https://lore.kernel.org/linux-media/20210507123558.146948-1-tomi.valkeinen@xxxxxxxxxxxxxxxx/ The main change is that in this series each pad+stream combination can have its own configuration, versus only pad having its own configuration. In other words, a pad with 4 streams will contain 4 configurations. The patches up to and including "v4l: Add stream to frame descriptor" are the same as previously, except changes done according to the review comments. After that, the new pad+stream approach is implemented. This series is based on the subdev-wide state change: https://lore.kernel.org/linux-media/20210519091558.562318-1-tomi.valkeinen@xxxxxxxxxxxxxxxx/ Tomi Jacopo Mondi (2): media: entity: Add iterator helper for entity pads media: Documentation: Add GS_ROUTING documentation Laurent Pinchart (4): media: entity: Add has_route entity operation media: entity: Add media_entity_has_route() function media: entity: Use routing information during graph traversal v4l: subdev: Add [GS]_ROUTING subdev ioctls and operations Sakari Ailus (13): media: entity: Use pad as a starting point for graph walk media: entity: Use pads instead of entities in the media graph walk stack media: entity: Walk the graph based on pads v4l: mc: Start walk from a specific pad in use count calculation media: entity: Move the pipeline from entity to pads media: entity: Use pad as the starting point for a pipeline media: entity: Skip link validation for pads to which there is no route media: entity: Add an iterator helper for connected pads media: entity: Add only connected pads to the pipeline media: entity: Add debug information in graph walk route check v4l: Add bus type to frame descriptors v4l: Add CSI-2 bus configuration to frame descriptors v4l: Add stream to frame descriptor Tomi Valkeinen (8): v4l: subdev: add V4L2_SUBDEV_ROUTE_FL_SOURCE v4l: subdev: routing kernel helper functions v4l: subdev: add stream based configuration v4l: subdev: add 'stream' to subdev ioctls v4l: subdev: use streams in v4l2_subdev_link_validate() v4l: subdev: add routing & stream config to v4l2_subdev_state v4l: subdev: add V4L2_SUBDEV_FL_MULTIPLEXED v4l: subdev: increase V4L2_FRAME_DESC_ENTRY_MAX to 8 Documentation/driver-api/media/mc-core.rst | 15 +- .../userspace-api/media/v4l/dev-subdev.rst | 128 ++++++ .../userspace-api/media/v4l/user-func.rst | 1 + .../v4l/vidioc-subdev-enum-frame-interval.rst | 5 +- .../v4l/vidioc-subdev-enum-frame-size.rst | 5 +- .../v4l/vidioc-subdev-enum-mbus-code.rst | 5 +- .../media/v4l/vidioc-subdev-g-crop.rst | 5 +- .../media/v4l/vidioc-subdev-g-fmt.rst | 5 +- .../v4l/vidioc-subdev-g-frame-interval.rst | 5 +- .../media/v4l/vidioc-subdev-g-routing.rst | 142 +++++++ .../media/v4l/vidioc-subdev-g-selection.rst | 5 +- drivers/media/mc/mc-device.c | 13 +- drivers/media/mc/mc-entity.c | 257 +++++++----- drivers/media/pci/intel/ipu3/ipu3-cio2-main.c | 6 +- .../media/platform/exynos4-is/fimc-capture.c | 8 +- .../platform/exynos4-is/fimc-isp-video.c | 8 +- drivers/media/platform/exynos4-is/fimc-isp.c | 2 +- drivers/media/platform/exynos4-is/fimc-lite.c | 10 +- drivers/media/platform/exynos4-is/media-dev.c | 20 +- drivers/media/platform/omap3isp/isp.c | 2 +- drivers/media/platform/omap3isp/ispvideo.c | 25 +- drivers/media/platform/omap3isp/ispvideo.h | 2 +- .../media/platform/qcom/camss/camss-video.c | 6 +- drivers/media/platform/rcar-vin/rcar-core.c | 16 +- drivers/media/platform/rcar-vin/rcar-dma.c | 8 +- .../platform/rockchip/rkisp1/rkisp1-capture.c | 6 +- .../media/platform/s3c-camif/camif-capture.c | 6 +- drivers/media/platform/stm32/stm32-dcmi.c | 6 +- .../platform/sunxi/sun4i-csi/sun4i_dma.c | 6 +- .../platform/sunxi/sun6i-csi/sun6i_video.c | 6 +- drivers/media/platform/ti-vpe/cal-video.c | 6 +- drivers/media/platform/vsp1/vsp1_video.c | 18 +- drivers/media/platform/xilinx/xilinx-dma.c | 20 +- drivers/media/platform/xilinx/xilinx-dma.h | 2 +- .../media/test-drivers/vimc/vimc-capture.c | 6 +- drivers/media/usb/au0828/au0828-core.c | 8 +- drivers/media/v4l2-core/v4l2-ioctl.c | 25 +- drivers/media/v4l2-core/v4l2-mc.c | 43 +- drivers/media/v4l2-core/v4l2-subdev.c | 396 +++++++++++++++++- drivers/staging/media/imx/imx-media-utils.c | 8 +- drivers/staging/media/ipu3/ipu3-v4l2.c | 6 +- drivers/staging/media/omap4iss/iss.c | 2 +- drivers/staging/media/omap4iss/iss_video.c | 40 +- drivers/staging/media/omap4iss/iss_video.h | 2 +- drivers/staging/media/tegra-video/tegra210.c | 6 +- include/media/media-entity.h | 142 +++++-- include/media/v4l2-subdev.h | 204 ++++++++- include/uapi/linux/v4l2-subdev.h | 76 +++- 48 files changed, 1410 insertions(+), 334 deletions(-) create mode 100644 Documentation/userspace-api/media/v4l/vidioc-subdev-g-routing.rst -- 2.25.1
