From: Krzysztof Kozlowski <krzk@kernel.org>
To: "Linus Walleij" <linus.walleij@linaro.org>,
"Bartosz Golaszewski" <bgolaszewski@baylibre.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Benoît Cousson" <bcousson@baylibre.com>,
"Tony Lindgren" <tony@atomide.com>,
"Joel Stanley" <joel@jms.id.au>,
"Andrew Jeffery" <andrew@aj.id.au>,
"Jason Cooper" <jason@lakedaemon.net>,
"Andrew Lunn" <andrew@lunn.ch>,
"Sebastian Hesselbarth" <sebastian.hesselbarth@gmail.com>,
"Gregory Clement" <gregory.clement@bootlin.com>,
"Shawn Guo" <shawnguo@kernel.org>,
"Sascha Hauer" <s.hauer@pengutronix.de>,
"Pengutronix Kernel Team" <kernel@pengutronix.de>,
"Stefan Agner" <stefan@agner.ch>,
linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-aspeed@lists.ozlabs.org
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Subject: [PATCH 2/6] dt-bindings: gpio: Convert bindings for Maxim MAX732x family to dtschema
Date: Sat, 29 Aug 2020 11:40:20 +0200 [thread overview]
Message-ID: <20200829094024.31842-2-krzk@kernel.org> (raw)
In-Reply-To: <20200829094024.31842-1-krzk@kernel.org>
Convert the Maxim MAX732x family of GPIO expanders bindings to device
tree schema by merging it with existing PCA95xx schema. These are quite
similar so merging reduces duplication.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
.../devicetree/bindings/gpio/gpio-max732x.txt | 58 ---------------
.../bindings/gpio/gpio-pca95xx.yaml | 72 ++++++++++++++++++-
2 files changed, 70 insertions(+), 60 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/gpio/gpio-max732x.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-max732x.txt b/Documentation/devicetree/bindings/gpio/gpio-max732x.txt
deleted file mode 100644
index b3a9c0c32823..000000000000
--- a/Documentation/devicetree/bindings/gpio/gpio-max732x.txt
+++ /dev/null
@@ -1,58 +0,0 @@
-* MAX732x-compatible I/O expanders
-
-Required properties:
- - compatible: Should be one of the following:
- - "maxim,max7319": For the Maxim MAX7319
- - "maxim,max7320": For the Maxim MAX7320
- - "maxim,max7321": For the Maxim MAX7321
- - "maxim,max7322": For the Maxim MAX7322
- - "maxim,max7323": For the Maxim MAX7323
- - "maxim,max7324": For the Maxim MAX7324
- - "maxim,max7325": For the Maxim MAX7325
- - "maxim,max7326": For the Maxim MAX7326
- - "maxim,max7327": For the Maxim MAX7327
- - reg: I2C slave address for this device.
- - gpio-controller: Marks the device node as a GPIO controller.
- - #gpio-cells: Should be 2.
- - first cell is the GPIO number
- - second cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>.
- Only the GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.
-
-Optional properties:
-
- The I/O expander can detect input state changes, and thus optionally act as
- an interrupt controller. When the expander interrupt line is connected all the
- following properties must be set. For more information please see the
- interrupt controller device tree bindings documentation available at
- Documentation/devicetree/bindings/interrupt-controller/interrupts.txt.
-
- - interrupt-controller: Identifies the node as an interrupt controller.
- - #interrupt-cells: Number of cells to encode an interrupt source, shall be 2.
- - first cell is the pin number
- - second cell is used to specify flags
- - interrupts: Interrupt specifier for the controllers interrupt.
-
-Please refer to gpio.txt in this directory for details of the common GPIO
-bindings used by client devices.
-
-Example 1. MAX7325 with interrupt support enabled (CONFIG_GPIO_MAX732X_IRQ=y):
-
- expander: max7325@6d {
- compatible = "maxim,max7325";
- reg = <0x6d>;
- gpio-controller;
- #gpio-cells = <2>;
- interrupt-controller;
- #interrupt-cells = <2>;
- interrupt-parent = <&gpio4>;
- interrupts = <29 IRQ_TYPE_EDGE_FALLING>;
- };
-
-Example 2. MAX7325 with interrupt support disabled (CONFIG_GPIO_MAX732X_IRQ=n):
-
- expander: max7325@6d {
- compatible = "maxim,max7325";
- reg = <0x6d>;
- gpio-controller;
- #gpio-cells = <2>;
- };
diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml b/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
index c5bb24b3b7b5..e90433b7d52b 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
@@ -9,6 +9,10 @@ title: NXP PCA95xx I2C GPIO multiplexer
maintainers:
- Krzysztof Kozlowski <krzk@kernel.org>
+description: |+
+ Bindings for the family of I2C GPIO multiplexers/expanders: NXP PCA95xx,
+ Maxim MAX73xx
+
properties:
compatible:
enum:
@@ -17,6 +21,15 @@ properties:
- maxim,max7312
- maxim,max7313
- maxim,max7315
+ - maxim,max7319
+ - maxim,max7320
+ - maxim,max7321
+ - maxim,max7322
+ - maxim,max7323
+ - maxim,max7324
+ - maxim,max7325
+ - maxim,max7326
+ - maxim,max7327
- nxp,pca6416
- nxp,pca9505
- nxp,pca9534
@@ -69,11 +82,11 @@ properties:
reset-gpios:
description:
GPIO specification for the RESET input. This is an active low signal to
- the PCA953x.
+ the PCA953x. Not valid for Maxim MAX732x devices.
vcc-supply:
description:
- Optional power supply
+ Optional power supply. Not valid for Maxim MAX732x devices.
required:
- compatible
@@ -83,6 +96,27 @@ required:
unevaluatedProperties: false
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - maxim,max7320
+ - maxim,max7321
+ - maxim,max7322
+ - maxim,max7323
+ - maxim,max7324
+ - maxim,max7325
+ - maxim,max7326
+ - maxim,max7327
+ then:
+ properties:
+ reset-gpios:
+ maxItems: 0
+ vcc-supply:
+ maxItems: 0
+
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
@@ -136,3 +170,37 @@ examples:
ti,micbias = <0>; /* 2.1V */
};
};
+
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ // MAX7325 with interrupt support enabled
+ gpio@6d {
+ compatible = "maxim,max7325";
+ reg = <0x6d>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <29 IRQ_TYPE_EDGE_FALLING>;
+ };
+ };
+
+ - |
+ i2c3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ // MAX7325 with interrupt support disabled
+ gpio@6e {
+ compatible = "maxim,max7325";
+ reg = <0x6e>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ };
--
2.17.1
next prev parent reply other threads:[~2020-08-29 9:40 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-29 9:40 [PATCH 1/6] dt-bindings: gpio: Convert bindings for NXP PCA953x family to dtschema Krzysztof Kozlowski
2020-08-29 9:40 ` Krzysztof Kozlowski [this message]
2020-09-14 18:12 ` [PATCH 2/6] dt-bindings: gpio: Convert bindings for Maxim MAX732x " Rob Herring
2020-08-29 9:40 ` [PATCH 3/6] ARM: dts: am335x: lxm: Fix PCA9539 GPIO expander properties Krzysztof Kozlowski
2020-09-03 8:31 ` Tony Lindgren
2020-08-29 9:40 ` [PATCH 4/6] ARM: dts: aspeed: Fix PCA95xx GPIO expander properties on Portwell Krzysztof Kozlowski
2020-09-10 16:53 ` Krzysztof Kozlowski
2020-08-29 9:40 ` [PATCH 5/6] ARM: dts: dove: Fix PCA95xx GPIO expander properties on A510 Krzysztof Kozlowski
2020-09-12 9:41 ` Linus Walleij
2020-08-29 9:40 ` [PATCH 6/6] ARM: dts: vf: Fix PCA95xx GPIO expander properties on ZII CFU1 Krzysztof Kozlowski
2020-09-05 6:16 ` Shawn Guo
2020-09-10 16:54 ` [PATCH 1/6] dt-bindings: gpio: Convert bindings for NXP PCA953x family to dtschema Krzysztof Kozlowski
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