RE: [PATCH v7 RESEND 2/3] thermal: exynos_tmu: Support new hardware and update TMU interface

[손신]

Hello, Daniel Lezcano.

> -----Original Message-----
> From: Daniel Lezcano [mailto:daniel.lezcano@xxxxxxxxxx]
> Sent: Monday, November 24, 2025 8:09 PM
> To: 손신 <shin.son@xxxxxxxxxxx>; 'Bartlomiej Zolnierkiewicz'
> <bzolnier@xxxxxxxxx>; 'Krzysztof Kozlowski' <krzk@xxxxxxxxxx>; 'Rafael J .
> Wysocki' <rafael@xxxxxxxxxx>; 'Zhang Rui' <rui.zhang@xxxxxxxxx>; 'Lukasz
> Luba' <lukasz.luba@xxxxxxx>; 'Rob Herring' <robh@xxxxxxxxxx>; 'Conor
> Dooley' <conor+dt@xxxxxxxxxx>; 'Alim Akhtar' <alim.akhtar@xxxxxxxxxxx>
> Cc: 'Henrik Grimler' <henrik@xxxxxxxxxx>; linux-pm@xxxxxxxxxxxxxxx; linux-
> samsung-soc@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; linux-arm-
> kernel@xxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH v7 RESEND 2/3] thermal: exynos_tmu: Support new
> hardware and update TMU interface
> 
> On 11/24/25 12:04, 손신 wrote:
> > Hello, Daniel Lezcano.
> >
> >> On 11/24/25 11:06, 손신 wrote:
> >> [ ... ]
> >>
> >>> However, since ExynosAutov920 diverges significantly from the
> >>> existing driver, Would introducing a separate driver instead of
> >>> unifying
> >> everything be acceptable?
> >>
> >> So this driver is one controller for multiple sensors while the
> >> others drivers are one controller for one sensor, right ?
> >>
> >
> > Yes. As far as I understand, the previous Exynos variants used one TMU
> > controller per sensor, while on ExynosAutoV920 the hardware has multiple
> TMU instances and each instance contains multiple sensors.
> > Therefore, this new automotive SoC requires supporting multiple sensors
> behind a single TMU controller.
> 
> Ok thanks. It makes sense to create a separate driver.

Then, I'll prepare a new patch series. Thank you for your feedback

Best regards,
Shin