Hi, the second round removes the prepare_stream callback and instead lets the intermediate subdevices propagate s_stream calls to their sources rather than individually calling s_stream on each subdevice from the bridge driver. This is similar to how drm bridges recursively call into their next neighbor. It makes it easier to do bringup ordering on a per-link level, as long as the source preparation can be done at s_power, and the sink can just prepare, call s_stream on its source, and then enable itself inside s_stream. Obviously this would only work in a generic fashion if all asynchronous subdevices with both inputs and outputs would propagate s_stream to their source subdevices.
Changes since v1: - Propagate field and colorspace in ipucsi_subdev_set_format. - Remove v4l2_media_subdev_prepare_stream and v4l2_media_subdev_s_stream, let subdevices propagate s_stream calls to their upstream subdevices themselves. - Various fixes (see individual patches for details) regards Philipp Philipp Zabel (20): [media] v4l2-async: move code out of v4l2_async_notifier_register into v4l2_async_test_nofity_all [media] v4l2-async: allow subdevices to add further subdevices to the notifier waiting list [media] v4l: of: add v4l2_of_subdev_registered [media] v4l2-async: add new subdevices to the tail of subdev_list [media] imx: Add i.MX SoC wide media device driver [media] imx-ipu: Add i.MX IPUv3 CSI subdevice driver [media] imx: Add i.MX IPUv3 capture driver [media] platform: add video-multiplexer subdevice driver [media] imx: Add i.MX MIPI CSI-2 subdevice driver [media] tc358743: put lanes in STOP state before starting streaming ARM: dts: imx6qdl: Add capture-subsystem node ARM: dts: imx6qdl: Add mipi_ipu1/2 multiplexers, mipi_csi, and their connections ARM: dts: imx6qdl: Add MIPI CSI-2 D-PHY compatible and clocks ARM: dts: nitrogen6x: Add dtsi for BD_HDMI_MIPI HDMI to MIPI CSI-2 receiver board gpu: ipuv3: add ipu_csi_set_downsize [media] imx-ipuv3-csi: support downsizing [media] add mux and video interface bridge entity functions [media] video-multiplexer: set entity function to mux [media] imx: Set i.MX MIPI CSI-2 entity function to bridge [media] tc358743: set entity function to video interface bridge Sascha Hauer (1): [media] imx: Add IPUv3 media common code .../devicetree/bindings/media/fsl-imx-capture.txt | 92 ++ .../bindings/media/video-multiplexer.txt | 59 ++ Documentation/media/uapi/mediactl/media-types.rst | 22 + arch/arm/boot/dts/imx6dl.dtsi | 187 ++++ arch/arm/boot/dts/imx6q.dtsi | 123 +++ .../boot/dts/imx6qdl-nitrogen6x-bd-hdmi-mipi.dtsi | 73 ++ arch/arm/boot/dts/imx6qdl.dtsi | 17 +- drivers/gpu/ipu-v3/ipu-csi.c | 16 + drivers/media/i2c/tc358743.c | 5 + drivers/media/platform/Kconfig | 10 + drivers/media/platform/Makefile | 3 + drivers/media/platform/imx/Kconfig | 33 + drivers/media/platform/imx/Makefile | 5 + drivers/media/platform/imx/imx-ipu-capture.c | 1015 ++++++++++++++++++++ drivers/media/platform/imx/imx-ipu.c | 321 +++++++ drivers/media/platform/imx/imx-ipu.h | 43 + drivers/media/platform/imx/imx-ipuv3-csi.c | 578 +++++++++++ drivers/media/platform/imx/imx-media.c | 249 +++++ drivers/media/platform/imx/imx-mipi-csi2.c | 698 ++++++++++++++ drivers/media/platform/video-multiplexer.c | 473 +++++++++ drivers/media/v4l2-core/v4l2-async.c | 102 +- drivers/media/v4l2-core/v4l2-of.c | 69 ++ include/media/v4l2-async.h | 12 + include/media/v4l2-of.h | 15 + include/uapi/linux/media.h | 6 + include/video/imx-ipu-v3.h | 1 + 26 files changed, 4214 insertions(+), 13 deletions(-) create mode 100644 Documentation/devicetree/bindings/media/fsl-imx-capture.txt create mode 100644 Documentation/devicetree/bindings/media/video-multiplexer.txt create mode 100644 arch/arm/boot/dts/imx6qdl-nitrogen6x-bd-hdmi-mipi.dtsi create mode 100644 drivers/media/platform/imx/Kconfig create mode 100644 drivers/media/platform/imx/Makefile create mode 100644 drivers/media/platform/imx/imx-ipu-capture.c create mode 100644 drivers/media/platform/imx/imx-ipu.c create mode 100644 drivers/media/platform/imx/imx-ipu.h create mode 100644 drivers/media/platform/imx/imx-ipuv3-csi.c create mode 100644 drivers/media/platform/imx/imx-media.c create mode 100644 drivers/media/platform/imx/imx-mipi-csi2.c create mode 100644 drivers/media/platform/video-multiplexer.c -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html