From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-renesas-soc@vger.kernel.org
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Magnus Damm <magnus.damm@gmail.com>,
linux-rtc@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH 1/3] dt-bindings: rtc: rzn1: add optional second clock
Date: Wed, 19 Mar 2025 12:03:02 +0100 [thread overview]
Message-ID: <20250319110305.19687-2-wsa+renesas@sang-engineering.com> (raw)
In-Reply-To: <20250319110305.19687-1-wsa+renesas@sang-engineering.com>
The external crystal can be a second clock input. It is needed for the
SCMP counting method which allows using crystals different than 32768Hz.
It is also needed for an upcoming SoC which only supports the SCMP
method.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
.../devicetree/bindings/rtc/renesas,rzn1-rtc.yaml | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/rtc/renesas,rzn1-rtc.yaml b/Documentation/devicetree/bindings/rtc/renesas,rzn1-rtc.yaml
index f6e0c613af67..f6fdcc7090b6 100644
--- a/Documentation/devicetree/bindings/rtc/renesas,rzn1-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/renesas,rzn1-rtc.yaml
@@ -33,10 +33,14 @@ properties:
- const: pps
clocks:
- maxItems: 1
+ minItems: 1
+ maxItems: 2
clock-names:
- const: hclk
+ minItems: 1
+ items:
+ - const: hclk
+ - const: xtal
power-domains:
maxItems: 1
--
2.47.2
next prev parent reply other threads:[~2025-03-19 11:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-19 11:03 [PATCH 0/3] rtc: rzn1: support XTAL clk and SCMP method Wolfram Sang
2025-03-19 11:03 ` Wolfram Sang [this message]
2025-04-10 15:08 ` [PATCH 1/3] dt-bindings: rtc: rzn1: add optional second clock Geert Uytterhoeven
2025-04-10 15:29 ` Geert Uytterhoeven
2025-04-10 20:23 ` Wolfram Sang
2025-04-11 6:20 ` Geert Uytterhoeven
2025-04-11 6:38 ` Wolfram Sang
2025-03-19 11:03 ` [PATCH 2/3] rtc: rzn1: Disable controller before initialization Wolfram Sang
2025-03-19 11:03 ` [PATCH 3/3] rtc: rzn1: support input frequencies other than 32768Hz Wolfram Sang
2025-04-10 15:17 ` Geert Uytterhoeven
2025-04-10 20:09 ` Wolfram Sang
2025-04-11 6:16 ` Geert Uytterhoeven
2025-04-11 6:39 ` Wolfram Sang
2025-05-01 22:11 ` Wolfram Sang
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