Hi Paweł, On 07/05/2024 17:54, Paweł Anikiel wrote: > 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 video interface, 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 video interface 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. > > This patchset depends on changes merged into the linux-media tree at: > git://linuxtv.org/hverkuil/media_tree.git tags/br-v6.10d > > Here is the output of `v4l2-compliance -s` run on a Chameleon v3 for > /dev/video0 (no attached subdevice): This v3 series looks pretty good to me, so from a V4L2 perspective I believe a v4 should be OK. But I need Acked-by for the drm and bindings patches before I can merge a v4. Regards, Hans > > ``` > v4l2-compliance 1.27.0-5204, 32 bits, 32-bit time_t > v4l2-compliance SHA: dd049328e528 2024-04-29 13:40:09 > > Compliance test for chv3-video device /dev/video0: > > Driver Info: > Driver name : chv3-video > Card type : Chameleon v3 video > Bus info : platform:c0060500.video > Driver version : 6.9.0 > Capabilities : 0x84200001 > Video Capture > Streaming > Extended Pix Format > Device Capabilities > Device Caps : 0x04200001 > Video Capture > Streaming > Extended Pix Format > > Required ioctls: > test VIDIOC_QUERYCAP: OK > test invalid ioctls: OK > > Allow for multiple opens: > test second /dev/video0 open: OK > test VIDIOC_QUERYCAP: OK > test VIDIOC_G/S_PRIORITY: OK > test for unlimited opens: OK > > Debug ioctls: > test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported) > test VIDIOC_LOG_STATUS: OK (Not Supported) > > Input ioctls: > test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported) > test VIDIOC_G/S_FREQUENCY: OK (Not Supported) > test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported) > test VIDIOC_ENUMAUDIO: OK (Not Supported) > test VIDIOC_G/S/ENUMINPUT: OK > test VIDIOC_G/S_AUDIO: OK (Not Supported) > Inputs: 1 Audio Inputs: 0 Tuners: 0 > > Output ioctls: > test VIDIOC_G/S_MODULATOR: OK (Not Supported) > test VIDIOC_G/S_FREQUENCY: OK (Not Supported) > test VIDIOC_ENUMAUDOUT: OK (Not Supported) > test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported) > test VIDIOC_G/S_AUDOUT: OK (Not Supported) > Outputs: 0 Audio Outputs: 0 Modulators: 0 > > Input/Output configuration ioctls: > test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported) > test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK > test VIDIOC_DV_TIMINGS_CAP: OK > test VIDIOC_G/S_EDID: OK (Not Supported) > > Control ioctls (Input 0): > test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK > test VIDIOC_QUERYCTRL: OK > test VIDIOC_G/S_CTRL: OK > test VIDIOC_G/S/TRY_EXT_CTRLS: OK > test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK > test VIDIOC_G/S_JPEGCOMP: OK (Not Supported) > Standard Controls: 2 Private Controls: 0 > > Format ioctls (Input 0): > test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK > test VIDIOC_G/S_PARM: OK (Not Supported) > test VIDIOC_G_FBUF: OK (Not Supported) > test VIDIOC_G_FMT: OK > test VIDIOC_TRY_FMT: OK > test VIDIOC_S_FMT: OK > test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported) > test Cropping: OK (Not Supported) > test Composing: OK (Not Supported) > test Scaling: OK (Not Supported) > > Codec ioctls (Input 0): > test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported) > test VIDIOC_G_ENC_INDEX: OK (Not Supported) > test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported) > > Buffer ioctls (Input 0): > test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK > test CREATE_BUFS maximum buffers: OK > test VIDIOC_REMOVE_BUFS: OK > test VIDIOC_EXPBUF: OK > test Requests: OK (Not Supported) > test TIME32/64: OK > > Test input 0: > > Streaming ioctls: > test read/write: OK (Not Supported) > test blocking wait: OK > test MMAP (no poll): OK > test MMAP (select): OK > test MMAP (epoll): OK > test USERPTR (no poll): OK (Not Supported) > test USERPTR (select): OK (Not Supported) > test DMABUF: Cannot test, specify --expbuf-device > > Total for chv3-video device /dev/video0: 55, Succeeded: 55, Failed: 0, Warnings: 0 > ``` > > Here is the output of `v4l2-compliance -s` run on a Chameleon v3 for > /dev/video4 (attached subdevice): > > ``` > v4l2-compliance 1.27.0-5204, 32 bits, 32-bit time_t > v4l2-compliance SHA: dd049328e528 2024-04-29 13:40:09 > > Compliance test for chv3-video device /dev/video4: > > Driver Info: > Driver name : chv3-video > Card type : Chameleon v3 video > Bus info : platform:c0060600.video > Driver version : 6.9.0 > Capabilities : 0x84200001 > Video Capture > Streaming > Extended Pix Format > Device Capabilities > Device Caps : 0x04200001 > Video Capture > Streaming > Extended Pix Format > > Required ioctls: > test VIDIOC_QUERYCAP: OK > test invalid ioctls: OK > > Allow for multiple opens: > test second /dev/video4 open: OK > test VIDIOC_QUERYCAP: OK > test VIDIOC_G/S_PRIORITY: OK > test for unlimited opens: OK > > Debug ioctls: > test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported) > test VIDIOC_LOG_STATUS: OK (Not Supported) > > Input ioctls: > test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported) > test VIDIOC_G/S_FREQUENCY: OK (Not Supported) > test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported) > test VIDIOC_ENUMAUDIO: OK (Not Supported) > test VIDIOC_G/S/ENUMINPUT: OK > test VIDIOC_G/S_AUDIO: OK (Not Supported) > Inputs: 1 Audio Inputs: 0 Tuners: 0 > > Output ioctls: > test VIDIOC_G/S_MODULATOR: OK (Not Supported) > test VIDIOC_G/S_FREQUENCY: OK (Not Supported) > test VIDIOC_ENUMAUDOUT: OK (Not Supported) > test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported) > test VIDIOC_G/S_AUDOUT: OK (Not Supported) > Outputs: 0 Audio Outputs: 0 Modulators: 0 > > Input/Output configuration ioctls: > test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported) > test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK > test VIDIOC_DV_TIMINGS_CAP: OK > test VIDIOC_G/S_EDID: OK > > Control ioctls (Input 0): > test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK > test VIDIOC_QUERYCTRL: OK > test VIDIOC_G/S_CTRL: OK > test VIDIOC_G/S/TRY_EXT_CTRLS: OK > test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK > test VIDIOC_G/S_JPEGCOMP: OK (Not Supported) > Standard Controls: 2 Private Controls: 0 > > Format ioctls (Input 0): > test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK > test VIDIOC_G/S_PARM: OK (Not Supported) > test VIDIOC_G_FBUF: OK (Not Supported) > test VIDIOC_G_FMT: OK > test VIDIOC_TRY_FMT: OK > test VIDIOC_S_FMT: OK > test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported) > test Cropping: OK (Not Supported) > test Composing: OK (Not Supported) > test Scaling: OK (Not Supported) > > Codec ioctls (Input 0): > test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported) > test VIDIOC_G_ENC_INDEX: OK (Not Supported) > test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported) > > Buffer ioctls (Input 0): > test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK > test CREATE_BUFS maximum buffers: OK > test VIDIOC_REMOVE_BUFS: OK > test VIDIOC_EXPBUF: OK > test Requests: OK (Not Supported) > test TIME32/64: OK > > Test input 0: > > Streaming ioctls: > test read/write: OK (Not Supported) > test blocking wait: OK > test MMAP (no poll): OK > test MMAP (select): OK > test MMAP (epoll): OK > test USERPTR (no poll): OK (Not Supported) > test USERPTR (select): OK (Not Supported) > test DMABUF: Cannot test, specify --expbuf-device > > Total for chv3-video device /dev/video4: 55, Succeeded: 55, Failed: 0, Warnings: 0 > ``` > > v3 changes: > - Send v4l2-subdev API changes as a separate patchset > - Drop chameleonv3/ directory > - Change capture device name from "framebuffer" to "video interface" > - Set sensible min and max dv timing caps > - Set pixelclock to htotal * vtotal * 24Hz (we can't detect the actual value) > - Remove enum_framesizes > - Use v4l2_match_dv_timings() > - Add V4L2_CID_DV_RX_POWER_PRESENT control > - Use V4L2_DV_BT_CEA_1920X1080P60 as default timing > - Use vb2_video_unregister_device() > - Move subdev pad initialization to probe > - Change subdev entity function to MEDIA_ENT_F_DV_DECODER > - Drop dprx 'port' property and always use 'ports' instead > - Remove legacy-format property and use multiple compats > - Cleanup notifier only in non-fallback mode > - Cleanup subdev entity using media_entity_cleanup() > - Increase HPD pulse length to 500ms (see comment in dprx_set_edid()) > - Pull HPD low before updating EDID > - Add a DisplayPort media bus type > - Move receiver properties to port endpoint (data-lanes, link-frequencies) > > 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 (10): > media: Add Chameleon v3 video interface 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: dt-bindings: video-interfaces: Support DisplayPort MST > media: v4l2-mediabus: Add support for DisplayPort media bus > media: intel: Add Displayport RX IP driver > media: dt-bindings: Add Chameleon v3 video interface > media: dt-bindings: Add Intel Displayport RX IP > ARM: dts: chameleonv3: Add video device nodes > > .../bindings/media/google,chv3-video.yaml | 64 + > .../devicetree/bindings/media/intel,dprx.yaml | 172 ++ > .../bindings/media/video-interfaces.yaml | 7 + > .../socfpga/socfpga_arria10_chameleonv3.dts | 194 ++ > 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 | 13 + > drivers/media/platform/google/Makefile | 3 + > drivers/media/platform/google/chv3-video.c | 891 +++++++ > drivers/media/platform/intel/Kconfig | 12 + > drivers/media/platform/intel/Makefile | 1 + > drivers/media/platform/intel/intel-dprx.c | 2283 +++++++++++++++++ > drivers/media/v4l2-core/v4l2-fwnode.c | 38 + > 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/dt-bindings/media/video-interfaces.h | 2 + > include/linux/crc-dp.h | 10 + > include/media/v4l2-fwnode.h | 5 + > include/media/v4l2-mediabus.h | 17 + > lib/Kconfig | 8 + > lib/Makefile | 1 + > lib/crc-dp.c | 78 + > 25 files changed, 4053 insertions(+), 304 deletions(-) > create mode 100644 Documentation/devicetree/bindings/media/google,chv3-video.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/chv3-video.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 >
