On 16/01/2026 09:50, Tudor Ambarus wrote:

Because of the hybrid approach I'm arguing the ACPM child node does not
fully describe the hardware, and it's just a firmware abstraction.
So option 2/ would be to have just the TMU IP block described with a
phandle to the ACPM IPC:

soc: soc@0 {
    tmu@100a0000 {
        compatible = "google,gs101-tmu-top";
        reg = <0x100a0000 0x800>;
        clocks = <&cmu_misc CLK_GOUT_MISC_TMU_TOP_PCLK>;
        interrupts = <GIC_SPI 769 IRQ_TYPE_LEVEL_HIGH 0>;
        
        /* The "Firmware Phandle" approach */
        samsung,acpm-ipc = <&acpm_ipc>;
        
        #thermal-sensor-cells = <1>;

Yes, this one, I think it's the best representation.

Best regards,
Krzysztof