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Hi team,
The customer are using the am6234 custom board, debugging the CSI imx219 camera with SDK 8.6 and using the imx219 driver that comes with the SDK kernel.
The /dev/video* device node already appears after the drive is loaded, but data cannot be collected. The program gets stuck at wait_event_interruptible of the __vb2_wait_for_done_vb function in drivers/media/common/videobuf2/videobuf2-core.c file.
The debug information is printed as shown in the following figure:
It is found through printing that the DMA callback function ti_csi2rx_DMA_callback in the drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c driver has never been called, resulting in the stuck when acquiring data.
It was also found that DMA initialization in the drivers/media/platform/ti/j721e-csi2Rx/j721e-csi2Rx.c driver only sets the width of DMA and does not set the source address of DMA:
The device tree is configured as follows:
&main_i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&main_i2c0_pins_default>;
clock-frequency = <400000>;
imx219_0: imx219_0@10 {
compatible = "sony,imx219";
reg = <0x10>;
clocks = <&clk_mipi_csi_fixed>;
clock-names = "xclk";
pinctrl-names = "default";
pinctrl-0 = <&imx219_reset_gpio>;
reset-gpios = <&mcu_gpio0 11 GPIO_ACTIVE_HIGH>;
port {
csi2_cam0: endpoint {
remote-endpoint = <&csi2rx0_in_sensor>;
link-frequencies = /bits/ 64 <456000000>;
clock-lanes = <0>;
data-lanes = <1 2>;
};
};
};
};
&csi0_port0 {
status = "okay";
csi2rx0_in_sensor: endpoint {
remote-endpoint = <&csi2_cam0>;
bus-type = <4>; /* CSI2 DPHY. */
clock-lanes = <0>;
data-lanes = <1 2>;
};
};
Could you help check this case? Thanks.
Best Regards,
Cherry
Hi Yogesh,
Thank you and yes the customer give some differences:
The self-made board power supply is not the same as the TI EVM board, the CSI0_RXRCALIB pull-down resistor is actually soldered at 1%, not at 0.1%, in the CSI interface section, and the other configurations are the same:
Thanks and regards,
Cherry
