From:   Frieder Schrempf <frieder@fris.de>
To:     Alessandro Zummo <a.zummo@towertech.it>,
        Alexandre Belloni <alexandre.belloni@bootlin.com>,
        devicetree@vger.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org,
        Rob Herring <robh+dt@kernel.org>
Cc:     Frieder Schrempf <frieder.schrempf@kontron.de>,
        Rob Herring <robh@kernel.org>,
        Thierry Reding <treding@nvidia.com>
Subject: [PATCH 1/7] dt-bindings: rtc: Move RV3028 to separate binding file
Date:   Wed,  1 Feb 2023 15:34:23 +0100
Message-Id: <20230201143431.863784-2-frieder@fris.de>
In-Reply-To: <20230201143431.863784-1-frieder@fris.de>
References: <20230201143431.863784-1-frieder@fris.de>
MIME-Version: 1.0
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From: Frieder Schrempf <frieder.schrempf@kontron.de>

The RV3028 driver uses properties that are not covered by the
trivial-rtc bindings. Use custom bindings for it.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
---
 .../bindings/rtc/microcrystal,rv3028.yaml     | 56 +++++++++++++++++++
 .../devicetree/bindings/rtc/trivial-rtc.yaml  |  2 -
 2 files changed, 56 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/rtc/microcrystal,rv3028.yaml

diff --git a/Documentation/devicetree/bindings/rtc/microcrystal,rv3028.yaml b/Documentation/devicetree/bindings/rtc/microcrystal,rv3028.yaml
new file mode 100644
index 000000000000..4667ba86fd0c
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/microcrystal,rv3028.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/microcrystal,rv3028.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip RV-3028 RTC
+
+allOf:
+  - $ref: "rtc.yaml#"
+
+maintainers:
+  - Alexandre Belloni <alexandre.belloni@bootlin.com>
+
+properties:
+  compatible:
+    const: microcrystal,rv3028
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  start-year: true
+
+  trickle-resistor-ohms:
+    enum:
+      - 3000
+      - 5000
+      - 9000
+      - 15000
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        rtc@51 {
+            compatible = "microcrystal,rv3028";
+            reg = <0x52>;
+            pinctrl-0 = <&rtc_nint_pins>;
+            interrupts-extended = <&gpio1 16 IRQ_TYPE_LEVEL_HIGH>;
+            trickle-resistor-ohms = <3000>;
+        };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml b/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
index d9fc120c61cc..84cce1f0ca0c 100644
--- a/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
@@ -48,8 +48,6 @@ properties:
       # Intersil ISL12022 Real-time Clock
       - isil,isl12022
       # Real Time Clock Module with I2C-Bus
-      - microcrystal,rv3028
-      # Real Time Clock Module with I2C-Bus
       - microcrystal,rv3029
       # Real Time Clock
       - microcrystal,rv8523
-- 
2.39.1