Re: [PATCH 2/3] arm64: dts: ti: k3-am62a: Set Critical Temp. to 105C

[Daniel Schultz <d.schultz@phytec.de>]

On 5/5/25 15:12, Nishanth Menon wrote:
> On 21:11-20250502, Daniel Schultz wrote:
>> On 5/2/25 16:49, Nishanth Menon wrote:
>>> On 07:26-20250502, Daniel Schultz wrote:
>>>> The AM62Ax SoC supports two temperature ranges:
>>>> * A: -40 to 105C - Extended Industrial
>>>> * I: -40 to 125C - Automotive
>>>>
>>>> By default, use the lower limit (105 °C) so that any AM62A running
>>>> in Extended Industrial mode will shut down safely before overheating.
>>>>
>>>> If the bootloader detects an Automotive-grade device, it should
>>>> override this and raise the critical trip point to 125 °C.
>>>>
>>>> Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
>>>> ---
>>>>    arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi | 6 +++---
>>>>    1 file changed, 3 insertions(+), 3 deletions(-)
>>>>
>>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi
>>>> index 39ff9118b6c4..40dcb9bab965 100644
>>>> --- a/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi
>>>> +++ b/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi
>>> Why not create a separate header for industrial grade and rename this as
>>> automotive grade and let the board file pick the right grade used on the
>>> board?
>> Mostly because I copied this from 10e7bfd8114c207ac and with the most recent
>> temperature fixups in U-Boot, we also have the missing bootloader logic.
>>
>> I would also prefer an out-of-the-box solution for that.
> Personally, I am not in favor of depending on U-boot (there are other
> bootloaders as well in the ecosystem) monkeying with dt nodes.
>
> I suggest renaming the dtsi and introducing a industrial dtsi. And
> depending on the samples used by the board, use the correct dtsi.

Can you just drop this patch and continue with 1/3 and 3/3 or should I 
re-send? I will update the am62x and am62ax both in a separate series 
afterwards. I probably have to update quite a lot board and that might 
take longer to get an ack by everyone.

- Daniel