Temperature Sensor Reading not showing up.

[Patrick Venture]

On Tue, Oct 30, 2018 at 10:13 PM AKASH G J <akashgj91 at gmail.com> wrote:
>
> Hi All,
>
> I built OpenBMC Linux using Zaius configuration and booted on BMC Aspeed AST-2500. The board we are using have one temperature sensor (Texas Instruments TMP75) on I2C-12 interface.
>
> I added the file meta-zaius/recipes-phosphor/sensors/phosphor-hwmon%/obmc/hwmon/ahb/apb/i2c at 1e6e2000/i2c-bus at 90/tmp75 at 48.conf in machine configuration directory with the following contents.
>
> LABEL_temp1 = ambient
> WARNLO_temp1=-40
> WARNHI_temp1=125
>
> I added the following patch to the kernel file linux/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts.
>
>  &i2c12 {
> -    status = "disabled";
> +    status = "okay";
> +
> +    tmp75 at 48 {
> +        compatible = "ti,tmp75";
> +        reg = <0x48>;
> +    };
> +
>  };
>
> After booting Linux, the changes are reflected in /sys/firmware/devicetree/base/ahb/apb/i2c at 1e78a000/i2c-bus at 440/tmp75 at 48. Also,
> tmp78.conf is showing in /etc/default/obmc/hwmon/ahb/apb/i2c at 1e78a000/i2c-bus at 90.
>
> when I am running the ipmitool command: ipmitool -I dbus sdr elist full it is not showing the temperature sensor and its reading.
>
> Please someone help to resolve the problem.

You'll need to add the sensor configuration to the
phosphor-host-ipmid's sensor configuration, see:

https://github.com/openbmc/openbmc/blob/master/meta-ingrasys/meta-zaius/recipes-phosphor/ipmi/phosphor-ipmi-sensor-inventory%25/config.yaml

>
>
> Thanks and Regards,
>
> Akash
>