[v2,3/9] dt-bindings: thermal: imx: Add trips point

Commit Message

Francesco Dolcini June 17, 2022, 7:08 a.m. UTC

Add trips point to i.MX Thermal bindings for each temperature grade
(automotive, commercial, extended-commercial and industrial) to enable
specifying a different trip point than the hard-coded value.

Signed-off-by: Francesco Dolcini <[e-mail]>
---
v2: no changes
---
 .../bindings/thermal/imx-thermal.yaml         | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

Patch

diff --git a/Documentation/devicetree/bindings/thermal/imx-thermal.yaml b/Documentation/devicetree/bindings/thermal/imx-thermal.yaml
index 16b57f57d103..e6349e40d6c6 100644
--- a/Documentation/devicetree/bindings/thermal/imx-thermal.yaml
+++ b/Documentation/devicetree/bindings/thermal/imx-thermal.yaml
@@ -54,6 +54,18 @@  properties:
   clocks:
     maxItems: 1
 
+patternProperties:
+  "^(automotive|commercial|extended-commercial|industrial)-thermal$":
+    type: object
+    description:
+      Thermal characteristics for each available temperature grade, this allows
+      to override the passive and critical trip points.
+    properties:
+      trips:
+        $ref: "thermal-zones.yaml#/$defs/trips-base"
+
+      additionalProperties: false
+
 required:
   - compatible
   - interrupts
@@ -98,5 +110,20 @@  examples:
              nvmem-cells = <&tempmon_calib>, <&tempmon_temp_grade>;
              nvmem-cell-names = "calib", "temp_grade";
              clocks = <&clks IMX6SX_CLK_PLL3_USB_OTG>;
+
+             industrial-thermal {
+                 trips {
+                     temp_trip_passive_industrial: trip-point0 {
+                         temperature = <95000>;
+                         hysteresis = <0>;
+                         type = "passive";
+                     };
+                     temp_trip_crit_industrial: trip-point1 {
+                         temperature = <100000>;
+                         hysteresis = <0>;
+                         type = "critical";
+                     };
+                 };
+             };
         };
     };