找到原因了，entity显示格式是yuv与设置的rgb565不一致。根因还在查 media-ctl -p Media controller API version 6.1.28 Media device information driver dcmipp model DCMIPP MDEV serial bus info platform:dcmipp hw revision 0x0 driver version 6.1.28 Device topology entity 1: dcmipp_parallel (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev0 pad0: Sink [fmt:RGB565_2X8_LE/640x480 field:none colorspace:rec709] <- "ov5640 1-003c":0 [ENABLED,IMMUTABLE] pad1: Source [fmt:RGB565_2X8_LE/640x480 field:none colorspace:rec709] -> "dcmipp_dump_postproc":0 [ENABLED,IMMUTABLE] entity 4: dcmipp_dump_postproc (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev1 pad0: Sink [fmt:RGB565_2X8_LE/640x480@1/30 field:none colorspace:rec709 compose.bounds0,0)/640x480 compose0,0)/640x480] <- "dcmipp_parallel":1 [ENABLED,IMMUTABLE] pad1: Source [fmt:RGB565_2X8_LE/640x480@1/30 field:none colorspace:rec709 crop.bounds0,0)/640x480 crop0,0)/640x480] -> "dcmipp_dump_capture":0 [ENABLED,IMMUTABLE] entity 7: dcmipp_dump_capture (1 pad, 1 link) type Node subtype V4L flags 0 device node name /dev/video0 pad0: Sink <- "dcmipp_dump_postproc":1 [ENABLED,IMMUTABLE] entity 15: ov5640 1-003c (1 pad, 1 link) type V4L2 subdev subtype Sensor flags 0 device node name /dev/v4l-subdev2 pad0: Source [fmt:UYVY8_2X8/640x480@1/30 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:full-range] -> "dcmipp_parallel":0 [ENABLED,IMMUTABLE]
你好，i2c3默认是安全外设，需要配置OP-TEE设备树将其改为非安全可读写外设，参考配置如下，编译更新OP-TEE后，重启系统，再检查Linux下能否识别。 &etzpc{ ... DECPROT(STM32MP1_ETZPC_I2C3_ID, DECPROT_NS_RW, DECPROT_UNLOCK) ...
