Hello, This is v2 of the rkvdec driver which was initially posted as part of my RFC adding codec helpers. For this version, I decided to get rid of the helper stuff which is likely to take some more time to settle. The patchset now contains a proper DT binding doc. Note that this implementation is likely to be adjusted based on the outcome of the 'scaling matrix order' [1] and 'dynamic resolution changes' [2] discussions, but I thought it'd be worth posting this version to start getting feeback. Regards, Boris [1]https://patchwork.kernel.org/cover/11125207/ [2]https://lkml.org/lkml/2019/9/3/1033 Boris Brezillon (4): media: vb2: Add a helper to get the vb2 buffer attached to a request media: dt-bindings: rockchip: Document RK3399 Video Decoder bindings media: rockchip: Add the rkvdec driver arm64: dts: rockchip: rk3399: Define the rockchip Video Decoder node .../bindings/media/rockchip,vdec.yaml | 71 ++ arch/arm64/boot/dts/rockchip/rk3399.dtsi | 14 +- .../media/common/videobuf2/videobuf2-core.c | 23 + drivers/staging/media/Kconfig | 2 + drivers/staging/media/Makefile | 1 + drivers/staging/media/rockchip/Kconfig | 16 + drivers/staging/media/rockchip/Makefile | 2 + drivers/staging/media/rockchip/vdec/Kconfig | 14 + drivers/staging/media/rockchip/vdec/Makefile | 3 + .../staging/media/rockchip/vdec/rkvdec-h264.c | 960 +++++++++++++++ .../staging/media/rockchip/vdec/rkvdec-regs.h | 306 +++++ drivers/staging/media/rockchip/vdec/rkvdec.c | 1089 +++++++++++++++++ drivers/staging/media/rockchip/vdec/rkvdec.h | 131 ++ include/media/videobuf2-core.h | 11 + 14 files changed, 2642 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/media/rockchip,vdec.yaml create mode 100644 drivers/staging/media/rockchip/Kconfig create mode 100644 drivers/staging/media/rockchip/Makefile create mode 100644 drivers/staging/media/rockchip/vdec/Kconfig create mode 100644 drivers/staging/media/rockchip/vdec/Makefile create mode 100644 drivers/staging/media/rockchip/vdec/rkvdec-h264.c create mode 100644 drivers/staging/media/rockchip/vdec/rkvdec-regs.h create mode 100644 drivers/staging/media/rockchip/vdec/rkvdec.c create mode 100644 drivers/staging/media/rockchip/vdec/rkvdec.h -- 2.21.0