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

[Francesco Dolcini]

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).

Francesco

[1] https://lore.kernel.org/all/20220420091300.179753-1-francesco.dolcini@toradex.com/
[2] https://lore.kernel.org/all/20220516190001.147919-1-francesco.dolcini@toradex.com/