linux-kernel - [PATCH v2 17/24] arm64: dts: qcom: glymur-crd: Avoid RTC probe failure

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Message-Id: <20250925-v3_glymur_introduction-v2-17-8e1533a58d2d@oss.qualcomm.com>
Date: Thu, 25 Sep 2025 11:58:23 +0530
From: Pankaj Patil <pankaj.patil@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Pankaj Patil <pankaj.patil@....qualcomm.com>,
        Kamal Wadhwa <kamal.wadhwa@....qualcomm.com>
Subject: [PATCH v2 17/24] arm64: dts: qcom: glymur-crd: Avoid RTC probe
 failure

From: Kamal Wadhwa <kamal.wadhwa@....qualcomm.com>

On Glymur boards, the RTC alarm interrupts are routed to SOCCP
subsystems and are not available to APPS. This can cause the
RTC probe failure as the RTC IRQ registration will fail in
probe.

Fix this issue by adding `no-alarm` property in the RTC DT
node. This will skip the RTC alarm irq registration and
the RTC probe will return success.

Signed-off-by: Kamal Wadhwa <kamal.wadhwa@....qualcomm.com>
Signed-off-by: Pankaj Patil <pankaj.patil@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/glymur-crd.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/glymur-crd.dts b/arch/arm64/boot/dts/qcom/glymur-crd.dts
index d6003ae515e37049fdf17d6b604b974dc8e9fbbc..b04c0ed28468620673237fffb4013adacc7ef7ba 100644
--- a/arch/arm64/boot/dts/qcom/glymur-crd.dts
+++ b/arch/arm64/boot/dts/qcom/glymur-crd.dts
@@ -429,3 +429,7 @@ vreg_l4h_e0_1p2: ldo4 {
 		};
 	};
 };
+
+&pmk8850_rtc {
+	no-alarm;
+};

-- 
2.34.1