FYI: I'm missing a MAINTAINERS entry for this driver. Please add one when you post v6. Thanks! Hans On 08/30/2016 02:25 PM, Minghsiu Tsai wrote: > Changes in v5: > - Add ack in the comment of dts patch > - Fix s/g_selection() > - Separate format V4L2_PIX_FMT_MT21C into new patch > > Changes in v4: > - Add "depends on HAS_DMA" in Kconfig. > - Fix s/g_selection() > - Replace struct v4l2_crop with u32 and struct v4l2_rect > - Remove VB2_USERPTR > - Move mutex lock after ctx allocation in mtk_mdp_m2m_open() > - Add new format V4L2_PIX_FMT_YVU420 to support software on Android platform. > - Only width/height of image in format V4L2_PIX_FMT_MT21 is aligned to 16/16, > other ones are aligned to 2/2 by default > > Changes in v3: > - Modify device ndoe as structured one. > - Fix conflict in dts on Linux 4.8-rc1 > > Changes in v2: > - Add section to describe blocks function in dts-bindings > - Remove the assignment of device_caps in querycap() > - Remove format's name assignment > - Copy colorspace-related parameters from OUTPUT to CAPTURE > - Use m2m helper functions > - Fix DMA allocation failure > - Initialize lazily vpu instance in streamon() > > ============== > Introduction > ============== > > The purpose of this series is to add the driver for Media Data Path HW embedded in the Mediatek's MT8173 SoC. > MDP is used for scaling and color space conversion. > > It could convert V4L2_PIX_FMT_MT21 to V4L2_PIX_FMT_NV12M or V4L2_PIX_FMT_YUV420M. > > NV12M/YUV420M/MT21 -> MDP -> NV12M/YUV420M > > This patch series rely on MTK VPU driver in patch series "Add MT8173 Video Encoder Driver and VPU Driver"[1] and "Add MT8173 Video Decoder Driver"[2]. > MDP driver rely on VPU driver to load, communicate with VPU. > > Internally the driver uses videobuf2 framework and MTK IOMMU and MTK SMI both have been merged in v4.6-rc1. > > [1]https://patchwork.kernel.org/patch/9002171/ > [2]https://patchwork.kernel.org/patch/9141245/ > > ================== > Device interface > ================== > > In principle the driver bases on v4l2 memory-to-memory framework: > it provides a single video node and each opened file handle gets its own private context with separate buffer queues. Each context consist of 2 buffer queues: OUTPUT (for source buffers) and CAPTURE (for destination buffers). > OUTPUT and CAPTURE buffer could be MMAP or DMABUF memory type. > > v4l2-compliance test output: > # v4l2-compliance -d /dev/image-proc0 > v4l2-compliance SHA : a737a6161485fffb70bf51e4fd7f6e2d910174c1 > > Driver Info: > Driver name : mtk-mdp > Card type : soc:mdp > Bus info : platform:mt8173 > Driver version: 4.8.0 > Capabilities : 0x84204000 > Video Memory-to-Memory Multiplanar > Streaming > Extended Pix Format > Device Capabilities > Device Caps : 0x04204000 > Video Memory-to-Memory Multiplanar > Streaming > Extended Pix Format > > Compliance test for device /dev/image-proc0 (not using libv4l2): > > Required ioctls: > test VIDIOC_QUERYCAP: OK > > Allow for multiple opens: > test second video 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 (Not Supported) > test VIDIOC_G/S_AUDIO: OK (Not Supported) > Inputs: 0 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 (Not Supported) > test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported) > test VIDIOC_G/S_EDID: OK (Not Supported) > > Control ioctls: > 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: 5 Private Controls: 0 > > Format ioctls: > 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 > test Composing: OK > test Scaling: OK > > Codec ioctls: > 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: > test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK > test VIDIOC_EXPBUF: OK > > Test input 0: > > > Total: 43, Succeeded: 43, Failed: 0, Warnings: 0 > > > Minghsiu Tsai (5): > VPU: mediatek: Add mdp support > dt-bindings: Add a binding for Mediatek MDP > media: Add Mediatek MDP Driver > arm64: dts: mediatek: Add MDP for MT8173 > media: mtk-mdp: support pixelformat V4L2_PIX_FMT_MT21C > > .../devicetree/bindings/media/mediatek-mdp.txt | 109 ++ > arch/arm64/boot/dts/mediatek/mt8173.dtsi | 84 ++ > drivers/media/platform/Kconfig | 17 + > drivers/media/platform/Makefile | 2 + > drivers/media/platform/mtk-mdp/Makefile | 9 + > drivers/media/platform/mtk-mdp/mtk_mdp_comp.c | 159 +++ > drivers/media/platform/mtk-mdp/mtk_mdp_comp.h | 72 ++ > drivers/media/platform/mtk-mdp/mtk_mdp_core.c | 294 +++++ > drivers/media/platform/mtk-mdp/mtk_mdp_core.h | 260 ++++ > drivers/media/platform/mtk-mdp/mtk_mdp_ipi.h | 126 ++ > drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c | 1278 ++++++++++++++++++++ > drivers/media/platform/mtk-mdp/mtk_mdp_m2m.h | 22 + > drivers/media/platform/mtk-mdp/mtk_mdp_regs.c | 156 +++ > drivers/media/platform/mtk-mdp/mtk_mdp_regs.h | 31 + > drivers/media/platform/mtk-mdp/mtk_mdp_vpu.c | 145 +++ > drivers/media/platform/mtk-mdp/mtk_mdp_vpu.h | 41 + > drivers/media/platform/mtk-vpu/mtk_vpu.h | 5 + > 17 files changed, 2810 insertions(+) > create mode 100644 Documentation/devicetree/bindings/media/mediatek-mdp.txt > create mode 100644 drivers/media/platform/mtk-mdp/Makefile > create mode 100644 drivers/media/platform/mtk-mdp/mtk_mdp_comp.c > create mode 100644 drivers/media/platform/mtk-mdp/mtk_mdp_comp.h > create mode 100644 drivers/media/platform/mtk-mdp/mtk_mdp_core.c > create mode 100644 drivers/media/platform/mtk-mdp/mtk_mdp_core.h > create mode 100644 drivers/media/platform/mtk-mdp/mtk_mdp_ipi.h > create mode 100644 drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c > create mode 100644 drivers/media/platform/mtk-mdp/mtk_mdp_m2m.h > create mode 100644 drivers/media/platform/mtk-mdp/mtk_mdp_regs.c > create mode 100644 drivers/media/platform/mtk-mdp/mtk_mdp_regs.h > create mode 100644 drivers/media/platform/mtk-mdp/mtk_mdp_vpu.c > create mode 100644 drivers/media/platform/mtk-mdp/mtk_mdp_vpu.h > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
