| Message ID | 20231129124330.519423-1-festevam@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v12,1/4] dt-bindings: thermal-zones: Document critical-action | expand |
On 29/11/2023 13:43, Fabio Estevam wrote: > From: Fabio Estevam <festevam@denx.de> > > Document the critical-action property to describe the thermal action > the OS should perform after the critical temperature is reached. > > The possible values are "shutdown" and "reboot". > > The motivation for introducing the critical-action property is that > different systems may need different thermal actions when the critical > temperature is reached. > > For example, in a desktop PC, it is desired that a shutdown happens > after the critical temperature is reached. > > However, in some embedded cases, such behavior does not suit well, > as the board may be unattended in the field and rebooting may be a > better approach. > > The bootloader may also benefit from this new property as it can check > the SoC temperature and in case the temperature is above the critical > point, it can trigger a shutdown or reboot accordingly. > > Signed-off-by: Fabio Estevam <festevam@denx.de> > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > --- Rafael, ok for you if I pick this series ?
Hi Rafael,
On Wed, Nov 29, 2023 at 10:13 AM Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:
> Rafael, ok for you if I pick this series ?
Please let us know if Daniel could pick this series.
Thanks
Rafael, Daniel, On Wed, Dec 6, 2023 at 9:59 AM Fabio Estevam <festevam@gmail.com> wrote: > > Hi Rafael, > > On Wed, Nov 29, 2023 at 10:13 AM Daniel Lezcano > <daniel.lezcano@linaro.org> wrote: > > > Rafael, ok for you if I pick this series ? > > Please let us know if Daniel could pick this series. Can this be applied for 6.8, please?
On 13/12/2023 12:39, Fabio Estevam wrote: > Rafael, Daniel, > > On Wed, Dec 6, 2023 at 9:59 AM Fabio Estevam <festevam@gmail.com> wrote: >> >> Hi Rafael, >> >> On Wed, Nov 29, 2023 at 10:13 AM Daniel Lezcano >> <daniel.lezcano@linaro.org> wrote: >> >>> Rafael, ok for you if I pick this series ? >> >> Please let us know if Daniel could pick this series. > > Can this be applied for 6.8, please? I have applied this series on my bleeding-edge branch, this one will be merged with the PM's bleeding branch. After a few days it will migrate to linux-next. If no obvious regression happen it will end up for v6.8 Thank you -- Daniel
diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml index 4a8dabc48170..dbd52620d293 100644 --- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml +++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml @@ -75,6 +75,22 @@ patternProperties: framework and assumes that the thermal sensors in this zone support interrupts. + critical-action: + $ref: /schemas/types.yaml#/definitions/string + description: | + The action the OS should perform after the critical temperature is reached. + By default the system will shutdown as a safe action to prevent damage + to the hardware, if the property is not set. + The shutdown action should be always the default and preferred one. + Choose 'reboot' with care, as the hardware may be in thermal stress, + thus leading to infinite reboots that may cause damage to the hardware. + Make sure the firmware/bootloader will act as the last resort and take + over the thermal control. + + enum: + - shutdown + - reboot + thermal-sensors: $ref: /schemas/types.yaml#/definitions/phandle-array maxItems: 1