Linux driver for Timer PWM Module (TPM) on i.MX8QXP?

[laodzu]

Hi,

I would like to use the TPM unit on the i.MX8QXP processor from Linux. Checking the 5.15.72-2.2.0 kernel, I can find a TPM driver for the i.MX7ULP and i.MX8ULP. The documentation is here:

https://github.com/nxp-imx/linux-imx/blob/lf-5.15.71-2.2.0/Documentation/devicetree/bindings/timer/n...

So as far as I can see, there is currently no official support for TPM on this platform. Is the i.MX8ULP module compatible with the one in i.MX8QXP or will this require a completely new driver?

Any hint will be greatly appreciated!

[Manuel_Salas]

Hello!

Theoretically the IMX7ULP and the IMX8QXP have the same TPM module, the only difference is the counter, in the IMX7ULP the counter is of 16-bit. And in IMX8QXP the counter is of 32-bit.

Also, I checked and the combability with the IMX8ULP is until 5.17.y Kernel.

So, the driver should works well in the IMX8QXP.

Best regards!