[PATCH 2/7] dt-bindings: rtc: qcom-pm8xxx: document qcom,no-alarm flag

Johan Hovold
2025-01-20T14:42:48Z

From: Jonathan Marek <jonathan@marek.ca>

Qualcomm x1e80100 firmware sets the ownership of the RTC alarm to ADSP.
Thus writing to RTC alarm registers and receiving alarm interrupts is not
possible.

Add a qcom,no-alarm flag to support RTC on this platform.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20241015004945.3676-3-jonathan@marek.ca
[ johan: move vendor property; use boolean; reword description ]
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml b/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml
index cdc56dfbfac3..7497dc3ac5b2 100644
--- a/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml
@@ -50,6 +50,11 @@ properties:
items:
- const: offset

+ qcom,no-alarm:
+ type: boolean
+ description:
+ RTC alarm is not owned by the OS
+
qcom,uefi-rtc-info:
type: boolean
description:
--
2.45.2