| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20200829094024.31842-2-krzk@kernel.org>
Date: Sat, 29 Aug 2020 11:40:20 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Linus Walleij <linus.walleij@...aro.org>,
Bartosz Golaszewski <bgolaszewski@...libre.com>,
Rob Herring <robh+dt@...nel.org>,
Benoît Cousson <bcousson@...libre.com>,
Tony Lindgren <tony@...mide.com>,
Joel Stanley <joel@....id.au>,
Andrew Jeffery <andrew@...id.au>,
Jason Cooper <jason@...edaemon.net>,
Andrew Lunn <andrew@...n.ch>,
Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
Gregory Clement <gregory.clement@...tlin.com>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Stefan Agner <stefan@...er.ch>, linux-gpio@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-aspeed@...ts.ozlabs.org
Cc: Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH 2/6] dt-bindings: gpio: Convert bindings for Maxim MAX732x family to dtschema
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@...nel.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@...nel.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
Powered by blists - more mailing lists