On 3/5/26 5:48 AM, Alexey Klimov wrote: > Hi Tudor, > > On Mon Jan 19, 2026 at 12:08 PM GMT, Tudor Ambarus wrote: >> Document the Thermal Management Unit (TMU) found on the Google GS101 SoC. >> >> The GS101 TMU utilizes a hybrid control model shared between the >> Application Processor (AP) and the ACPM (Alive Clock and Power Manager) >> firmware. >> >> While the TMU is a standard memory-mapped IP block, on this platform > > this ^^ > okay cut > Is it Google TMU hardware block or Exynos/Samsung TMU block? > > My understanding at this point is that ACPM interface, ACPM protocols, etc > appeared on Samsung SoCs before gs101 (maybe even before initial SCMI > prototyping). It looks like ACPM firmware, communication via mailboxes, > TMU channel, dealing with TMU behing ACPM, etc are actually a standard > Samsung Exynos architectural feature, rather than a Google-specific > implementation. I can't say though what was the first chipset where it > was implemented. autov920, exynos850 too can use the hybrid ACPM TMU approach. I'll generalize the description. > > Given that this is a Samsung design that predates the gs101, would it > make sense to use more generic name for this binding to reflect that > it is Exynos-derived? That would save us from generalizing things later The name has to match the compatible. We can rename it when other Samsung compatibles are added. Cheers, ta
