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Message-ID: <20240108072253.30183-2-qiujingbao.dlmu@gmail.com>
Date: Mon, 8 Jan 2024 15:22:53 +0800
From: Jingbao Qiu <qiujingbao.dlmu@...il.com>
To: a.zummo@...ertech.it,
alexandre.belloni@...tlin.com,
robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org,
conor+dt@...nel.org,
paul.walmsley@...ive.com,
palmer@...belt.com,
aou@...s.berkeley.edu
Cc: linux-rtc@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v5 1/1] dt-bindings: rtc: sophgo: add RTC support for Sophgo CV1800 series SoC
Add RTC devicetree binding for Sophgo CV1800 SoC.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Jingbao Qiu <qiujingbao.dlmu@...il.com>
---
.../bindings/rtc/sophgo,cv1800-rtc.yaml | 56 +++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml
diff --git a/Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml b/Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml
new file mode 100644
index 000000000000..01a926cb5c81
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/sophgo,cv1800-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Real Time Clock of the Sophgo CV1800 SoC
+
+allOf:
+ - $ref: rtc.yaml#
+
+maintainers:
+ - Jingbao Qiu <qiujingbao.dlmu@...il.com>
+
+description:
+ Real Time Clock (RTC) is an independently powered module
+ within the chip, which includes a 32KHz oscillator and a
+ Power On Reset/POR submodule. It can be used for time display
+ and timed alarm generation. In addition, the hardware state
+ machine provides triggering and timing control for chip
+ power on, off, and reset.
+
+properties:
+ compatible:
+ items:
+ - const: sophgo,cv1800-rtc
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ rtc@...5000 {
+ compatible = "sophgo,cv1800-rtc", "syscon";
+ reg = <0x5025000 0x2000>;
+ interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk 15>;
+ };
+...
--
2.43.0
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