From: Johan Hovold <johan+linaro@kernel.org>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
Bjorn Andersson <andersson@kernel.org>
Cc: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Jonathan Marek <jonathan@marek.ca>,
Ard Biesheuvel <ardb@kernel.org>,
Maximilian Luz <luzmaximilian@gmail.com>,
Jens Glathe <jens.glathe@oldschoolsolutions.biz>,
Joel Stanley <joel@jms.id.au>, Sebastian Reichel <sre@kernel.org>,
Steev Klimaszewski <steev@kali.org>,
linux-arm-msm@vger.kernel.org, linux-rtc@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Johan Hovold <johan+linaro@kernel.org>
Subject: [PATCH v2 1/6] dt-bindings: rtc: qcom-pm8xxx: document qcom,no-alarm flag
Date: Wed, 19 Feb 2025 14:41:13 +0100 [thread overview]
Message-ID: <20250219134118.31017-2-johan+linaro@kernel.org> (raw)
In-Reply-To: <20250219134118.31017-1-johan+linaro@kernel.org>
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 ]
Acked-by: Rob Herring (Arm) <robh@kernel.org>
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 d274bb7a534b..68ef3208c886 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
+
wakeup-source: true
required:
--
2.45.3
next prev parent reply other threads:[~2025-02-19 13:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-19 13:41 [PATCH v2 0/6] arm64: dts: qcom: x1e80100: enable rtc Johan Hovold
2025-02-19 13:41 ` Johan Hovold [this message]
2025-02-19 13:41 ` [PATCH v2 2/6] rtc: pm8xxx: add support for uefi offset Johan Hovold
2025-02-19 13:41 ` [PATCH v2 3/6] rtc: pm8xxx: mitigate flash wear Johan Hovold
2025-02-19 13:41 ` [PATCH v2 4/6] rtc: pm8xxx: implement qcom,no-alarm flag for non-HLOS owned alarm Johan Hovold
2025-02-19 13:41 ` [PATCH v2 5/6] arm64: dts: qcom: sc8280xp-x13s: switch to uefi rtc offset Johan Hovold
2025-02-19 13:41 ` [PATCH v2 6/6] arm64: dts: qcom: x1e80100: enable rtc Johan Hovold
2025-03-10 12:27 ` [PATCH v2 0/6] " Johan Hovold
2025-03-17 11:06 ` Alexandre Belloni
2025-03-17 11:52 ` Johan Hovold
2025-03-17 11:05 ` (subset) " Alexandre Belloni
2025-03-17 14:51 ` Bjorn Andersson
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