[RESEND PATCH v2 0/9] imx: thermal: Allow trip point configuration from DT

[Jacky Bai]

Hi Francesco,

> Subject: Re: [RESEND PATCH v2 0/9] imx: thermal: Allow trip point
> configuration from DT
> 
> Hello Jacky,
> 
> On Fri, Jun 17, 2022 at 07:31:25AM +0000, Jacky Bai wrote:
> > > Subject: [RESEND PATCH v2 0/9] imx: thermal: Allow trip point
> > > configuration from DT
> > >
> > > This series allows to specify the imx thermal drivers trip point
> > > from the device tree, without this change the threshold are
> > > hard-coded and this might not be correct given the thermal design of the
> final system.
> > >
> >
> > The threshold is set dynamically based on the part market temp grade.
> > I am little confused why need to specify it in DT?  I saw in 'PATCH
> > 5/9', you provide a threshold table based temp grade, why not use the
> > threshold from ' imx_init_temp_grade'?
> 
> The problem with the existing temperature thresholds is that they are
> hard-coded into the driver, there is no way to change those to match the
> actual final system thermal design.
> 
> After various discussions [1][2] with Marco, Daniel and Lucas it was agreed
> that the actual trip is indeed a system property and therefore should be
> described in the device tree. This series make it possible in a backward
> compatible way, this new possibility is than used to override the threshold in
> some system-specific dts (see patches 6,7,8 and 9).
> 

Thx. Yes, in current driver design, the critical trip is fixed at 5 Celsius lower than the MAX limited.
So the purpose of this patch is just want to override this limitation to adjust it based on system need?

BR
Jacky Bai
> Francesco
>