On 01.06.21 19:49, Tim Harvey wrote:
> Override the default temperature alert/crit for Industrial temp IMX8M
> Mini.
>
> Signed-off-by: Tim Harvey <tharvey@xxxxxxxxxxxxx>
> ---
> .../boot/dts/freescale/imx8mm-venice-gw700x.dtsi | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw700x.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw700x.dtsi
> index c769fadbd008..512b76cd7c3b 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw700x.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw700x.dtsi
> @@ -493,3 +493,15 @@
> >;
> };
> };
> +
> +&cpu_alert0 {
> + temperature = <95000>;
> + hysteresis = <2000>;
> + type = "passive";
> +};
> +
> +&cpu_crit0 {
> + temperature = <105000>;
> + hysteresis = <2000>;
> + type = "critical";
> +};
As this is not really board-specific, I think the proper way to handle this for all boards is to let the thermal driver read the temperature grading from the OTP fuses and set the trip-points accordingly, similar to what is done on i.MX6 [1].
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/thermal/imx_thermal.c?h=v5.13-rc4#n508
