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Message-ID: <20240219221827.3821415-3-chris.packham@alliedtelesis.co.nz>
Date: Tue, 20 Feb 2024 11:18:24 +1300
From: Chris Packham <chris.packham@...iedtelesis.co.nz>
To: antoniu.miclaus@...log.com,
alexandre.belloni@...tlin.com,
robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org,
conor+dt@...nel.org,
jdelvare@...e.com,
linux@...ck-us.net
Cc: linux-rtc@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-hwmon@...r.kernel.org,
Ibrahim Tilki <Ibrahim.Tilki@...log.com>,
Zeynep Arslanbenzer <Zeynep.Arslanbenzer@...log.com>,
Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH v7 2/2] dt-bindings: rtc: add max313xx RTCs
From: Ibrahim Tilki <Ibrahim.Tilki@...log.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@...log.com>
Signed-off-by: Zeynep Arslanbenzer <Zeynep.Arslanbenzer@...log.com>
Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---
.../devicetree/bindings/rtc/adi,max31335.yaml | 70 --------
.../devicetree/bindings/rtc/adi,max313xx.yaml | 167 ++++++++++++++++++
2 files changed, 167 insertions(+), 70 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/rtc/adi,max31335.yaml
create mode 100644 Documentation/devicetree/bindings/rtc/adi,max313xx.yaml
diff --git a/Documentation/devicetree/bindings/rtc/adi,max31335.yaml b/Documentation/devicetree/bindings/rtc/adi,max31335.yaml
deleted file mode 100644
index 0125cf6727cc..000000000000
--- a/Documentation/devicetree/bindings/rtc/adi,max31335.yaml
+++ /dev/null
@@ -1,70 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/rtc/adi,max31335.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Analog Devices MAX31335 RTC
-
-maintainers:
- - Antoniu Miclaus <antoniu.miclaus@...log.com>
-
-description:
- Analog Devices MAX31335 I2C RTC ±2ppm Automotive Real-Time Clock with
- Integrated MEMS Resonator.
-
-allOf:
- - $ref: rtc.yaml#
-
-properties:
- compatible:
- const: adi,max31335
-
- reg:
- maxItems: 1
-
- interrupts:
- maxItems: 1
-
- "#clock-cells":
- description:
- RTC can be used as a clock source through its clock output pin.
- const: 0
-
- adi,tc-diode:
- description:
- Select the diode configuration for the trickle charger.
- schottky - Schottky diode in series.
- standard+schottky - standard diode + Schottky diode in series.
- enum: [schottky, standard+schottky]
-
- trickle-resistor-ohms:
- description:
- Selected resistor for trickle charger. Should be specified if trickle
- charger should be enabled.
- enum: [3000, 6000, 11000]
-
-required:
- - compatible
- - reg
-
-unevaluatedProperties: false
-
-examples:
- - |
- #include <dt-bindings/interrupt-controller/irq.h>
- i2c {
- #address-cells = <1>;
- #size-cells = <0>;
-
- rtc@68 {
- compatible = "adi,max31335";
- reg = <0x68>;
- pinctrl-0 = <&rtc_nint_pins>;
- interrupts-extended = <&gpio1 16 IRQ_TYPE_LEVEL_HIGH>;
- aux-voltage-chargeable = <1>;
- trickle-resistor-ohms = <6000>;
- adi,tc-diode = "schottky";
- };
- };
-...
diff --git a/Documentation/devicetree/bindings/rtc/adi,max313xx.yaml b/Documentation/devicetree/bindings/rtc/adi,max313xx.yaml
new file mode 100644
index 000000000000..e56e5394aa86
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/adi,max313xx.yaml
@@ -0,0 +1,167 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+# Copyright 2022 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/adi,max313xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices MAX313XX series I2C RTCs
+
+maintainers:
+ - Antoniu Miclaus <antoniu.miclaus@...log.com>
+ - Chris Packham <chris.packham@...iedtelesis.co.nz>
+
+description: Analog Devices MAX313XX series I2C RTCs.
+
+properties:
+ compatible:
+ enum:
+ - adi,max31328
+ - adi,max31329
+ - adi,max31331
+ - adi,max31334
+ - adi,max31335
+ - adi,max31341
+ - adi,max31342
+ - adi,max31343
+
+ reg:
+ description: I2C address of the RTC
+ items:
+ - enum: [0x68, 0x69]
+
+ interrupts:
+ description:
+ Alarm1 interrupt line of the RTC. Some of the RTCs have two interrupt
+ lines and alarm1 interrupt muxing depends on the clockin/clockout
+ configuration.
+ maxItems: 1
+
+ "#clock-cells":
+ description:
+ RTC can be used as a clock source through its clock output pin when
+ supplied.
+ const: 0
+
+ clocks:
+ description:
+ RTC uses this clock for clock input when supplied. Clock has to provide
+ 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.
+ schottky - Schottky diode in series.
+ standard+schottky - standard diode + Schottky diode in series.
+ enum: [schottky, standard+schottky]
+
+ trickle-resistor-ohms:
+ description:
+ Selected resistor for trickle charger. Should be specified if trickle
+ charger should be enabled.
+ enum: [3000, 6000, 11000]
+
+required:
+ - compatible
+ - reg
+
+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
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rtc@68 {
+ reg = <0x68>;
+ compatible = "adi,max31329";
+ clocks = <&clkin>;
+ interrupt-parent = <&gpio>;
+ interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
+ aux-voltage-chargeable = <1>;
+ trickle-resistor-ohms = <6000>;
+ adi,tc-diode = "schottky";
+ };
+ };
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rtc@68 {
+ compatible = "adi,max31335";
+ reg = <0x68>;
+ pinctrl-0 = <&rtc_nint_pins>;
+ interrupts-extended = <&gpio1 16 IRQ_TYPE_LEVEL_HIGH>;
+ aux-voltage-chargeable = <1>;
+ trickle-resistor-ohms = <6000>;
+ adi,tc-diode = "schottky";
+ };
+ };
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rtc@68 {
+ reg = <0x68>;
+ compatible = "adi,max31331";
+ #clock-cells = <0>;
+ };
+ };
+...
--
2.43.2
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