[PATCH 2/3] regulator: dt-bindings: ti,tps65219: Add ti,no-warm-shutdown

[Chrispine Tinega <dev@chrispinetinega.com>]

The TPS65219 has four die temperature sensors, each with a warm and a
hot threshold. A sensor whose warm warning is not masked makes the PMIC
sequence all its outputs down at the warm threshold, 110 to 130 C.
Masked, the warning is only reported, and the PMIC powers off at the hot
threshold, 130 to 150 C. Whether a board can run past the warm threshold
depends on its thermal design, so the board's devicetree has to say so.

Add ti,no-warm-shutdown for that. It is allowed on the TPS65219 only:
the masks are not described here for the TPS65214 and TPS65215.

Signed-off-by: Chrispine Tinega <dev@chrispinetinega.com>
---
 .../devicetree/bindings/regulator/ti,tps65219.yaml    | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
index 7c64e588a..75f7ce45d 100644
--- a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
+++ b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
@@ -62,6 +62,16 @@ properties:
       where the board has a button wired to the pin and triggers
       an interrupt on pressing it.
 
+  ti,no-warm-shutdown:
+    type: boolean
+    description: |
+      Keep the PMIC running when one of its die temperature sensors passes
+      its warm threshold. By default, a sensor whose warm warning is not
+      masked makes the PMIC sequence all its outputs down at that
+      threshold. With this property the warning is only reported, and the
+      PMIC powers off at its hot threshold instead, so the board can run
+      warmer and the operating system decides how to react to the warning.
+
   regulators:
     type: object
     description: |
@@ -111,6 +121,7 @@ allOf:
               - ti,tps65215
     then:
       properties:
+        ti,no-warm-shutdown: false
         regulators:
           patternProperties:
             "^ldo[3-4]$": false
-- 
2.53.0