i.MX ProcessorsのトピックIMX6 camera

IMX6 camera

john_smith — Mon, 22 Aug 2016 09:52:53 GMT

Hi!

I'd like to connect a camera to my IMX6 based board. For this purpose I use tvp5150 decoder. I added in my device tree files:

&i2c1 {

clock-frequency = <100000>;

pinctrl-names = "default";

pinctrl-0 = <&pinctrl_i2c1_2>;

status = "okay";

videoin: tvp5150@5D {

compatible = "ti,tvp5150";

reg = <0x5D>;

pinctrl-names = "default";

pinctrl-0 = <&pinctrl_ipu1_2>;

clocks = <&clks 201>;

clock-names = "csi_mclk";

DOVDD-supply = <&reg_3p3v>;

AVDD-supply = <&reg_3p3v>;

DVDD-supply = <&reg_3p3v>;

PVDD-supply = <&reg_3p3v>;

mclk = <24000000>;

mclk_source = <0>;

ipu_id = <0>;

csi_id = <0>;

cvbs = <1>;

};

v4l2_cap_0 {

compatible = "fsl,imx6q-v4l2-capture";

ipu_id = <0>;

csi_id = <0>;

mclk_source = <0>;

status = "okay";

};

I2C communication works fine, but v4l2 driver returns:

In MVC: mxc_v4l_open

ERROR: v4l2 capture: slave not found!

Do I need to add anything else to my device tree or kernel configuration?

Re: IMX6 camera

igorpadykov — Mon, 22 Aug 2016 10:55:56 GMT

Hi John

for tvp5150 mxc_v4l2_tvin should be used, please check examples on

https://community.nxp.com/thread/310371

https://community.nxp.com/thread/312914

also it is supported in compulab CM-FX6 linux

https://www.compulab.co.il/workspace/mediawiki/index.php5/CM-FX6:_Linux:_Kernel#TVP5150_video_decoder

Best regards

igor

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Re: IMX6 camera

john_smith — Mon, 22 Aug 2016 14:06:11 GMT

Thank you for your answer!

Excuse me for my newbie questions...

How can I add mxc_v4l2_tvin support to my kernel? And what do I need to change in the DT files?

In order to get TVP5150 working I've already activated [VIDEO_TVP5150 = y] through menuconfig command. If it is important - I use TVP5151 (seems like 5150 and 5151 are practically similar).