From: Jonathan Marek <jonathan@marek.ca>
To: linux-arm-msm@vger.kernel.org
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Satya Priya <quic_c_skakit@quicinc.com>,
linux-rtc@vger.kernel.org (open list:REAL TIME CLOCK (RTC)
SUBSYSTEM),
devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
FLATTENED DEVICE TREE BINDINGS),
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v3 2/5] dt-bindings: rtc: qcom-pm8xxx: document qcom,no-alarm flag
Date: Mon, 14 Oct 2024 20:47:27 -0400 [thread overview]
Message-ID: <20241015004945.3676-3-jonathan@marek.ca> (raw)
In-Reply-To: <20241015004945.3676-1-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>
---
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 d274bb7a534b5..23a5316efadba 100644
--- a/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml
@@ -40,6 +40,11 @@ properties:
description:
Indicates that the setting of RTC time is allowed by the host CPU.
+ qcom,no-alarm:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Indicates that RTC alarm is not owned by HLOS (Linux).
+
nvmem-cells:
items:
- description:
--
2.45.1
next prev parent reply other threads:[~2024-10-15 0:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-15 0:47 [PATCH v3 0/5] x1e80100 RTC support Jonathan Marek
2024-10-15 0:47 ` Jonathan Marek [this message]
2024-10-15 5:33 ` [PATCH v3 2/5] dt-bindings: rtc: qcom-pm8xxx: document qcom,no-alarm flag Krzysztof Kozlowski
2024-10-16 6:46 ` Johan Hovold
2024-10-15 0:47 ` [PATCH v3 3/5] arm64: dts: qcom: x1e80100-pmics: enable RTC Jonathan Marek
2024-10-15 0:47 ` [PATCH v3 4/5] arm64: dts: qcom: x1e80100-crd: add rtc offset to set rtc time Jonathan Marek
2024-10-16 6:51 ` Johan Hovold
2024-10-16 13:31 ` Jonathan Marek
2024-10-18 9:44 ` Johan Hovold
2024-10-31 20:09 ` Konrad Dybcio
2024-10-15 0:47 ` [PATCH v3 5/5] arm64: dts: qcom: x1e78100-t14s: " Jonathan Marek
2025-01-12 23:35 ` [PATCH v3 0/5] x1e80100 RTC support Alexandre Belloni
2025-01-20 14:51 ` Johan Hovold
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