From: Ciprian Costea <ciprianmarian.costea@oss.nxp.com>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Alexander Stein <alexander.stein@ew.tq-group.com>
Cc: linux-rtc@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, s32@nxp.com, imx@lists.linux.dev,
Christophe Lizzi <clizzi@redhat.com>,
Alberto Ruiz <aruizrui@redhat.com>,
Enric Balletbo <eballetb@redhat.com>,
Eric Chanudet <echanude@redhat.com>,
Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com>,
Larisa Grigore <larisa.grigore@nxp.com>
Subject: [PATCH 1/2] dt-bindings: rtc: nxp,pcf85063: add 'no-battery' property
Date: Thu, 10 Apr 2025 11:25:47 +0300 [thread overview]
Message-ID: <20250410082548.3821228-2-ciprianmarian.costea@oss.nxp.com> (raw)
In-Reply-To: <20250410082548.3821228-1-ciprianmarian.costea@oss.nxp.com>
From: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com>
In case the RTC is not linked to any battery, the oscillator will
be stopped at startup, triggering a SW reset command for the PCF85063 RTC.
For this setup, introduce 'no-battery' property which can be used to
manually start the oscillator.
Co-developed-by: Larisa Grigore <larisa.grigore@nxp.com>
Signed-off-by: Larisa Grigore <larisa.grigore@nxp.com>
Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com>
---
Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
index 2f892f8640d1..b342eb13fb2e 100644
--- a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
+++ b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
@@ -36,6 +36,11 @@ properties:
enum: [7000, 12500]
default: 7000
+ no-battery:
+ description: Used in case the RTC is not linked to any battery so the
+ oscillator is stopped at startup.
+ type: boolean
+
clock:
$ref: /schemas/clock/fixed-clock.yaml
description:
--
2.45.2
next prev parent reply other threads:[~2025-04-10 8:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-10 8:25 [PATCH 0/2] enable PCF85063 RTC support for S32G274A-RDB2 and S32G399A-RDB3 boards Ciprian Costea
2025-04-10 8:25 ` Ciprian Costea [this message]
2025-04-10 14:46 ` [PATCH 1/2] dt-bindings: rtc: nxp,pcf85063: add 'no-battery' property Frank Li
2025-04-10 14:51 ` Ciprian Marian Costea
2025-04-10 8:25 ` [PATCH 2/2] rtc: pcf85063: handle stopped oscillator at startup Ciprian Costea
2025-04-10 9:17 ` Alexandre Belloni
2025-04-10 12:56 ` Ciprian Marian Costea
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