It's not always the case that reboot mode value gets stored in PON
register. For example, Sony Xperia M4 Aqua phone (MSM8939) uses a
different set of mode value and stores them in IMEM. Add property
'qcom,mode-in-imem' to distinguish this mechanism from the existing one.
Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
---
.../bindings/power/reset/qcom,pon.yaml | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
index 7764c804af1d..a6270e39b7a2 100644
--- a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
+++ b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
@@ -23,6 +23,10 @@ properties:
reg:
maxItems: 1
+ qcom,mode-in-imem:
+ description: Reboot mode is stored in IMEM rather than PON register
+ type: boolean
+
patternProperties:
"^mode-.+":
$ref: /schemas/types.yaml#/definitions/uint32
@@ -35,6 +39,7 @@ required:
additionalProperties: false
examples:
+ # Example 1: Reboot mode is stored in PON register
- |
pmic {
#address-cells = <1>;
@@ -47,3 +52,17 @@ examples:
mode-recovery = <0x1>;
};
};
+ # Example 2: Reboot mode is stored in IMEM
+ - |
+ pmic {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pon@800 {
+ compatible = "qcom,pm8916-pon";
+ reg = <0x860065c>;
+ qcom,mode-in-imem;
+ mode-bootloader = <0x77665500>;
+ mode-recovery = <0x77665502>;
+ };
+ };
--
2.17.1
