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Message-Id: <20200317205017.28280-5-michael@walle.cc>
Date: Tue, 17 Mar 2020 21:50:03 +0100
From: Michael Walle <michael@...le.cc>
To: linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
linux-pwm@...r.kernel.org, linux-watchdog@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Cc: Linus Walleij <linus.walleij@...aro.org>,
Bartosz Golaszewski <bgolaszewski@...libre.com>,
Rob Herring <robh+dt@...nel.org>,
Jean Delvare <jdelvare@...e.com>,
Guenter Roeck <linux@...ck-us.net>,
Lee Jones <lee.jones@...aro.org>,
Thierry Reding <thierry.reding@...il.com>,
Uwe Kleine-König
<u.kleine-koenig@...gutronix.de>,
Wim Van Sebroeck <wim@...ux-watchdog.org>,
Shawn Guo <shawnguo@...nel.org>, Li Yang <leoyang.li@....com>,
Thomas Gleixner <tglx@...utronix.de>,
Jason Cooper <jason@...edaemon.net>,
Marc Zyngier <maz@...nel.org>, Michael Walle <michael@...le.cc>
Subject: [PATCH 04/18] dt-bindings: mfd: Add bindings for sl28cpld
This adds device tree bindings for the board management controller found
on the Kontron SMARC-sAL28 board.
Signed-off-by: Michael Walle <michael@...le.cc>
---
.../bindings/mfd/kontron,sl28cpld.yaml | 143 ++++++++++++++++++
1 file changed, 143 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
diff --git a/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
new file mode 100644
index 000000000000..3b9cca49d2d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
@@ -0,0 +1,143 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/kontron,sl28cpld.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Kontron's sl28cpld board management controller
+
+maintainers:
+ - Michael Walle <michael@...le.cc>
+
+description: |
+ The board management controller may contain different IP blocks like
+ watchdog, fan monitoring, PWM controller, interrupt controller and a
+ GPIO controller.
+
+properties:
+ compatible:
+ const: kontron,sl28cpld
+
+ reg:
+ description:
+ I2C device address.
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ "#interrupt-cells":
+ const: 2
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-controller: true
+
+patternProperties:
+ "^gp(io|i|o)(@[0-9]+)?$":
+ $ref: ../gpio/kontron,sl28cpld-gpio.yaml
+
+ "^hwmon(@[0-9]+)?$":
+ $ref: ../hwmon/kontron,sl28cpld-hwmon.yaml
+
+ "^pwm(@[0-9]+)?$":
+ $ref: ../pwm/kontron,sl28cpld-pwm.yaml
+
+ "^watchdog(@[0-9]+)?$":
+ $ref: ../watchdog/kontron,sl28cpld-wdt.yaml
+
+required:
+ - "#address-cells"
+ - "#size-cells"
+ - compatible
+ - reg
+ - "#interrupt-cells"
+ - interrupt-controller
+
+oneOf:
+ - required:
+ - interrupts
+ - required:
+ - interrupts-extended
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sl28cpld@4a {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "kontron,sl28cpld";
+ reg = <0x4a>;
+ interrupts-extended = <&gpio2 6 IRQ_TYPE_EDGE_FALLING>;
+
+ #interrupt-cells = <2>;
+ interrupt-controller;
+
+ gpio@0 {
+ compatible = "kontron,sl28cpld-gpio";
+ reg = <0>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio@1 {
+ compatible = "kontron,sl28cpld-gpio";
+ reg = <1>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpo {
+ compatible = "kontron,sl28cpld-gpo";
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "a", "b", "c";
+ };
+
+ gpi {
+ compatible = "kontron,sl28cpld-gpi";
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ hwmon {
+ compatible = "kontron,sl28cpld-fan";
+ };
+
+ pwm@0 {
+ compatible = "kontron,sl28cpld-pwm";
+ reg = <0>;
+ #pwm-cells = <2>;
+ };
+
+ pwm@1 {
+ compatible = "kontron,sl28cpld-pwm";
+ reg = <1>;
+ #pwm-cells = <2>;
+ };
+
+ watchdog {
+ compatible = "kontron,sl28cpld-wdt";
+ };
+ };
+ };
--
2.20.1
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