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From: Chris Packham <chris.packham@alliedtelesis.co.nz>
To: antoniu.miclaus@analog.com,
	alexandre.belloni@bootlin.com,
	robh+dt@kernel.org,
	krzysztof.kozlowski+dt@linaro.org,
	conor+dt@kernel.org,
	jdelvare@suse.com,
	linux@roeck-us.net
Cc: linux-rtc@vger.kernel.org,
	devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-hwmon@vger.kernel.org,
	Ibrahim Tilki <Ibrahim.Tilki@analog.com>,
	Zeynep Arslanbenzer <Zeynep.Arslanbenzer@analog.com>,
	Chris Packham <chris.packham@alliedtelesis.co.nz>
Subject: [PATCH v8 2/2] dt-bindings: rtc: add max313xx RTCs
Date: Tue, 27 Feb 2024 14:03:10 +1300
Message-ID: <20240227010312.3305966-3-chris.packham@alliedtelesis.co.nz>
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From: Ibrahim Tilki <Ibrahim.Tilki@analog.com>

Add devicetree binding documentation for Analog Devices MAX313XX RTCs.
This combines the new models with the existing max31335 binding.

Signed-off-by: Ibrahim Tilki <Ibrahim.Tilki@analog.com>
Signed-off-by: Zeynep Arslanbenzer <Zeynep.Arslanbenzer@analog.com>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---
 .../devicetree/bindings/rtc/adi,max31335.yaml | 88 ++++++++++++++++---
 1 file changed, 78 insertions(+), 10 deletions(-)

diff --git a/Documentation/devicetree/bindings/rtc/adi,max31335.yaml b/Do=
cumentation/devicetree/bindings/rtc/adi,max31335.yaml
index 0125cf6727cc..ad8d6fec9a2b 100644
--- a/Documentation/devicetree/bindings/rtc/adi,max31335.yaml
+++ b/Documentation/devicetree/bindings/rtc/adi,max31335.yaml
@@ -1,36 +1,54 @@
 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+# Copyright 2022 Analog Devices Inc.
 %YAML 1.2
 ---
 $id: http://devicetree.org/schemas/rtc/adi,max31335.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
=20
-title: Analog Devices MAX31335 RTC
+title: Analog Devices MAX313XX series I2C RTCs
=20
 maintainers:
   - Antoniu Miclaus <antoniu.miclaus@analog.com>
+  - Chris Packham <chris.packham@alliedtelesis.co.nz>
=20
-description:
-  Analog Devices MAX31335 I2C RTC =C2=B12ppm Automotive Real-Time Clock =
with
-  Integrated MEMS Resonator.
-
-allOf:
-  - $ref: rtc.yaml#
+description: Analog Devices MAX313XX series I2C RTCs.
=20
 properties:
   compatible:
-    const: adi,max31335
+    enum:
+      - adi,max31328
+      - adi,max31329
+      - adi,max31331
+      - adi,max31334
+      - adi,max31335
+      - adi,max31341
+      - adi,max31342
+      - adi,max31343
=20
   reg:
-    maxItems: 1
+    description: I2C address of the RTC
+    items:
+      - enum: [0x68, 0x69]
=20
   interrupts:
+    description:
+      Alarm1 interrupt line of the RTC. Some of the RTCs have two interr=
upt
+      lines and alarm1 interrupt muxing depends on the clockin/clockout
+      configuration.
     maxItems: 1
=20
   "#clock-cells":
     description:
-      RTC can be used as a clock source through its clock output pin.
+      RTC can be used as a clock source through its clock output pin whe=
n
+      supplied.
     const: 0
=20
+  clocks:
+    description:
+      RTC uses this clock for clock input when supplied. Clock has to pr=
ovide
+      one of these four frequencies - 1Hz, 50Hz, 60Hz or 32.768kHz.
+    maxItems: 1
+
   adi,tc-diode:
     description:
       Select the diode configuration for the trickle charger.
@@ -48,6 +66,56 @@ required:
   - compatible
   - reg
=20
+allOf:
+  - $ref: rtc.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - adi,max31328
+              - adi,max31342
+
+    then:
+      properties:
+        aux-voltage-chargeable: false
+        trickle-resistor-ohms: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - adi,max31328
+              - adi,max31331
+              - adi,max31334
+              - adi,max31335
+              - adi,max31343
+
+    then:
+      properties:
+        clocks: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - adi,max31341
+              - adi,max31342
+
+    then:
+      properties:
+        reg:
+          items:
+            - const: 0x69
+
+    else:
+      properties:
+        reg:
+          items:
+            - const: 0x68
+
 unevaluatedProperties: false
=20
 examples:
--=20
2.43.2