Re: [PATCH] hwmon: (asus-ec-sensors) add MAXIMUS IX EXTREME

[Guenter Roeck]

On Thu, Oct 15, 2026 at 06:09:31PM +0200, Remy Demangeot wrote:
> From: Remy Demangeot <remy@xxxxxxxxxxxxx>
> 
> Add support for the ROG MAXIMUS IX EXTREME (Intel Z270). The board
> uses the same EC layout as the PRIME Z270-A for the chipset and
> T_Sensor temperatures, and additionally exposes the VRM temperature
> at the same register as the 300-series boards (bank 0, 0x3e), so add
> that sensor to the Intel 200-series family.
> 
> The hardware access mutex is \_SB_.PCI0.LPCB.SIO1.MUT0, as on the
> PRIME Z270-A (verified in the board's DSDT).
> 
> Readings were checked against HWiNFO 8.54 on the same machine
> (Chipset 47 C, T_Sensor 25 C, VRM 32 C).
> 
> Signed-off-by: Remy Demangeot <remy@xxxxxxxxxxxxx>

Applied.

> ---
> The board's EC also exposes more sensors that HWiNFO reads, but they
> need access patterns the driver does not have yet:
>  - three extension card fans (EXT_FAN1-3): write 0x0a/0x0b/0x0c to
>    bank 0 register 0x43 (selector), then read 0x57:0x58 (BE RPM);
>  - EXT_Sensor1-3 temperatures at bank 0, 0x60-0x62;
>  - Water_In/Out and Water_In2/Out2 on a second EC (firmware ID
>    "RGE2-Z270-0109") at I/O ports 0x68/0x6c, bank 1, registers
>    0x0d/0x0b/0x13/0x11 (same offsets as Water_In/Out on AMD boards).
> 
> I have a working out-of-tree driver for these and can prepare follow-up
> patches if this approach would be acceptable.

I am curions - any reason to assume that it would _not_ be acceptable ?

Thanks,
Guenter