Google Chameleon v3 is a testing device capable of emulating multiple DisplayPort monitors, used for testing purposes. It is based on an Arria 10 SoCFPGA. This patchset adds V4L2 drivers for two IP blocks used in the device's FPGA: the Chameleon v3 framebuffer, and the Intel DisplayPort RX IP. The former is a video capture device that takes video signal and writes frames into memory, which can be later processed by userspace. The latter is a DisplayPort receiver IP from Intel, its datasheet can be found at: https://www.intel.com/programmable/technical-pdfs/683273.pdf The framebuffer driver is a regular v4l2 capture device driver, while the DP RX driver is a v4l2 subdevice driver. In order to avoid code duplication, some parts of the DisplayPort code from the DRM subsystem were put into headers usable by the DP RX driver. Apart from that, the patchset adds a new callback to the internal v4l2 subdevice API to allow querying the dv timings of individual video streams of the DP receiver. v2 changes: - Add missing includes in dt binding examples - Add version number to intel,dprx compatible - Use generic node names in dts - Add and document IP configuration parameters - Remove IRQ registers from intel-dprx (they're not a part of the IP) - Remove no-endpoint property and check for "port" node instead Paweł Anikiel (9): media: v4l2-subdev: Add a pad variant of .query_dv_timings() media: Add Chameleon v3 framebuffer driver drm/dp_mst: Move DRM-independent structures to separate header lib: Move DisplayPort CRC functions to common lib drm/display: Add mask definitions for DP_PAYLOAD_ALLOCATE_* registers media: intel: Add Displayport RX IP driver media: dt-bindings: Add Chameleon v3 framebuffer media: dt-bindings: Add Intel Displayport RX IP ARM: dts: chameleonv3: Add video device nodes .../bindings/media/google,chv3-fb.yaml | 67 + .../devicetree/bindings/media/intel,dprx.yaml | 160 ++ .../socfpga/socfpga_arria10_chameleonv3.dts | 152 ++ drivers/gpu/drm/display/Kconfig | 1 + drivers/gpu/drm/display/drm_dp_mst_topology.c | 76 +- drivers/media/platform/Kconfig | 1 + drivers/media/platform/Makefile | 1 + drivers/media/platform/google/Kconfig | 3 + drivers/media/platform/google/Makefile | 2 + .../media/platform/google/chameleonv3/Kconfig | 13 + .../platform/google/chameleonv3/Makefile | 3 + .../platform/google/chameleonv3/chv3-fb.c | 895 +++++++ drivers/media/platform/intel/Kconfig | 12 + drivers/media/platform/intel/Makefile | 1 + drivers/media/platform/intel/intel-dprx.c | 2176 +++++++++++++++++ drivers/media/v4l2-core/v4l2-subdev.c | 11 + include/drm/display/drm_dp.h | 9 +- include/drm/display/drm_dp_mst.h | 238 ++ include/drm/display/drm_dp_mst_helper.h | 232 +- include/linux/crc-dp.h | 10 + include/media/v4l2-subdev.h | 5 + lib/Kconfig | 8 + lib/Makefile | 1 + lib/crc-dp.c | 78 + 24 files changed, 3851 insertions(+), 304 deletions(-) create mode 100644 Documentation/devicetree/bindings/media/google,chv3-fb.yaml create mode 100644 Documentation/devicetree/bindings/media/intel,dprx.yaml create mode 100644 drivers/media/platform/google/Kconfig create mode 100644 drivers/media/platform/google/Makefile create mode 100644 drivers/media/platform/google/chameleonv3/Kconfig create mode 100644 drivers/media/platform/google/chameleonv3/Makefile create mode 100644 drivers/media/platform/google/chameleonv3/chv3-fb.c create mode 100644 drivers/media/platform/intel/intel-dprx.c create mode 100644 include/drm/display/drm_dp_mst.h create mode 100644 include/linux/crc-dp.h create mode 100644 lib/crc-dp.c -- 2.44.0.rc0.258.g7320e95886-goog
