ADC128S052SW-LINUX: Driver not loaded - what can be the issue

moran farkash

Intellectual 470 points

Part Number: ADC128S052SW-LINUX
Other Parts Discussed in Thread: ADC128S052

Hello,

I've added the driver into menuconfig + according to bindings enable it in my dts.

///// from dts ////

//// SYSTEM MONITOR////

&ecspi1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi1>;
cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
status = "okay";

sysmon@0 {
compatible = "ti,adc128s052";
reg = <0>;
vref-supply = <&reg_5v0>;
spi-max-frequency = <1000000>;
status = "okay";
};

};

I can see that the ecspi1 controller enabled but I don't find any device under it .

It should appear under --> /sys/bus/iio/devices/iio: .... isn't it ????

Please advise what can be the issue.

BR,

Moran.

over 1 year ago

0 Cynthia over 1 year ago

TI__Mastermind 24940 points

Hello Moran,

Unfortunately we are not Linux experts, and the resources provided are third party. i suggest reaching out to Linux community forums for support.

If it is possible to take a screen grab of the resulting SPI communications to see if we can determine what's going on with the communication at the hardware level?

Regards,

Cynthia

0 moran farkash over 1 year ago in reply to Cynthia

Intellectual 470 points

Hi Cynthia,

There are a lot of Engineers hanging around in this particular forum , that maybe struggled with the same issue - loading this ADC driver.

Regarding your request,

Please find below capture from schematic :

Thanks in advance,

Moran.

0 Cynthia over 1 year ago in reply to moran farkash

TI__Mastermind 24940 points

Hello Moran,

This is true, maybe someone in this community will help, or a search through the E2E forum. But I would still suggest to post on a UNIX community forum as well

The schematic looks good.

Regards

Cynthia

0 moran farkash over 1 year ago in reply to Cynthia

Intellectual 470 points

I found the problem.

Need to make sure that "Enable software IIO device support " is also enabled in menuconfig.

BR,

Moran.

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ADC128S052SW-LINUX: Driver not loaded - what can be the issue