The default configuration of the PMIC behavior makes the PMIC
power cycle most regulators on PMIC_RST_B assertion. This power
cycling causes the memory contents of OCRAM to be lost.
Some systems needs some memory that survives reset and
reboot, therefore add a property to mark the regulator as
performing warm resets on PMIC_RST_B assertion.
Cc: Matteo Lisi <matteo.lisi@xxxxxxxxxxx>
Cc: Mirko Ardinghi <mirko.ardinghi@xxxxxxxxxxx>
Signed-off-by: Fabio Aiuto <fabio.aiuto@xxxxxxxxxxx>
---
.../bindings/regulator/nxp,pca9450-regulator.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml b/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml
index 849bfa50bdba..865b259dac37 100644
--- a/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml
@@ -93,6 +93,12 @@ properties:
When WDOG_B signal is asserted a warm reset will be done instead of cold
reset.
+ nxp,pmic-rst-b-warm-reset:
+ type: boolean
+ description:
+ When PMIC_RST_B signal is asserted a warm reset will be done instead of cold
+ reset.
+
required:
- compatible
- reg
--
2.34.1
