Hi, I am trying to use the CODA960 driver on a 3.18 kernel. It seems pretty good when the module is probed (appart from the unsupported firmware version) but when I try using the encoder, it fails allocating dma buffers.
Here is the DT part I added : &vpu { compatible = "fsl,imx6q-vpu"; clocks = <&clks 168>, <&clks 140>, <&clks 142>; clock-names = "per", "ahb", "ocram"; iramsize = <0x21000>; iram = <&ocram>; resets = <&src 1>; status = "okay"; }; When booting, I see : [ 4.410645] coda 2040000.vpu: Firmware code revision: 46056 [ 4.416312] coda 2040000.vpu: Initialized CODA960. [ 4.421123] coda 2040000.vpu: Unsupported firmware version: 3.1.1 [ 4.483577] coda 2040000.vpu: codec registered as /dev/video[0-1] I can start v4l2-ctl and it shows that the device seems to be ok : v4l2-ctl --all -d /dev/video1 Driver Info (not using libv4l2): Driver name : coda Card type : CODA960 Bus info : platform:coda Driver version: 3.18.0 Capabilities : 0x84208000 Video Memory-to-Memory Streaming Extended Pix Format Device Capabilities Device Caps : 0x04208000 Video Memory-to-Memory Streaming Extended Pix Format Priority: 2 Format Video Capture: Width/Height : 1920/1088 Pixel Format : 'YU12' Field : None Bytes per Line: 1920 Size Image : 3133440 Colorspace : HDTV and modern devices (ITU709) Flags : Format Video Output: Width/Height : 1920/1088 Pixel Format : 'H264' Field : None Bytes per Line: 0 Size Image : 1048576 Colorspace : HDTV and modern devices (ITU709) Flags : Selection: compose, Left 0, Top 0, Width 1920, Height 1088 Selection: compose_default, Left 0, Top 0, Width 1920, Height 1088 Selection: compose_bounds, Left 0, Top 0, Width 1920, Height 1088 Selection: compose_padded, Left 0, Top 0, Width 1920, Height 1088 Selection: crop, Left 0, Top 0, Width 1920, Height 1088 Selection: crop_default, Left 0, Top 0, Width 1920, Height 1088 Selection: crop_bounds, Left 0, Top 0, Width 1920, Height 1088 User Controls horizontal_flip (bool) : default=0 value=0 vertical_flip (bool) : default=0 value=0 Codec Controls video_gop_size (int) : min=1 max=60 step=1 default=16 value=16 video_bitrate (int) : min=0 max=32767000 step=1 default=0 value=0 number_of_intra_refresh_mbs (int) : min=0 max=8160 step=1 default=0 value=0 sequence_header_mode (menu) : min=0 max=1 default=1 value=1 maximum_bytes_in_a_slice (int) : min=1 max=1073741823 step=1 default=500 value=500 number_of_mbs_in_a_slice (int) : min=1 max=1073741823 step=1 default=1 value=1 slice_partitioning_method (menu) : min=0 max=2 default=0 value=0 h264_i_frame_qp_value (int) : min=0 max=51 step=1 default=25 value=25 h264_p_frame_qp_value (int) : min=0 max=51 step=1 default=25 value=25 h264_maximum_qp_value (int) : min=0 max=51 step=1 default=51 value=51 h264_loop_filter_alpha_offset (int) : min=0 max=15 step=1 default=0 value=0 h264_loop_filter_beta_offset (int) : min=0 max=15 step=1 default=0 value=0 h264_loop_filter_mode (menu) : min=0 max=1 default=0 value=0 mpeg4_i_frame_qp_value (int) : min=1 max=31 step=1 default=2 value=2 mpeg4_p_frame_qp_value (int) : min=1 max=31 step=1 default=2 value=2 horizontal_flip (bool) : default=0 value=0 vertical_flip (bool) : default=0 value=0 But when I try to get a file outputed, it fails : v4l2-ctl -d1 --stream-out-mmap --stream-mmap --stream-to x.raw [ 1197.292256] coda 2040000.vpu: dma_alloc_coherent of size 1048576 failed VIDIOC_REQBUFS: failed: Cannot allocate memory Did I forget to do something ? Thanks, JM -- 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