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Date: Fri, 2 Aug 2019 13:03:03 +0300
From: Beniamin Bia <beniamin.bia@...log.com>
To: <jic23@...nel.org>
CC: <lars@...afoo.de>, <Michael.Hennerich@...log.com>,
<knaack.h@....de>, <pmeerw@...erw.net>,
<gregkh@...uxfoundation.org>, <linux-iio@...r.kernel.org>,
<devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>,
<mark.rutland@....com>, <robh+dt@...nel.org>,
<devicetree@...r.kernel.org>, <paulmck@...ux.ibm.com>,
<mchehab+samsung@...nel.org>, <linus.walleij@...aro.org>,
<nicolas.ferre@...rochip.com>, <biabeniamin@...look.com>,
Beniamin Bia <beniamin.bia@...log.com>
Subject: [PATCH 3/4] dt-bindings: iio: adc: Migrate AD7606 documentation to yaml
The documentation for ad7606 was migrated to yaml, the new Linux Kernel
standard.
Signed-off-by: Beniamin Bia <beniamin.bia@...log.com>
---
.../bindings/iio/adc/adi,ad7606.yaml | 134 ++++++++++++++++++
MAINTAINERS | 2 +-
2 files changed, 135 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
new file mode 100644
index 000000000000..509dbe9c84d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
@@ -0,0 +1,134 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7606.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7606 Simultaneous Sampling ADC
+
+maintainers:
+ - Beniamin Bia <beniamin.bia@...log.com>
+ - Stefan Popa <stefan.popa@...log.com>
+
+description: |
+ Analog Devices AD7606 Simultaneous Sampling ADC
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606_7606-6_7606-4.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7616.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7605-4
+ - adi,ad7606-8
+ - adi,ad7606-6
+ - adi,ad7606-4
+ - adi,ad7616
+
+ reg:
+ maxItems: 1
+
+ spi-cpha: true
+
+ avcc-supply:
+ description:
+ Phandle to the Avcc power supply
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ adi,conversion-start-gpios:
+ description:
+ Must be the device tree identifier of the CONVST pin.
+ This logic input is used to initiate conversions on the analog
+ input channels. As the line is active high, it should be marked
+ GPIO_ACTIVE_HIGH.
+ maxItems: 1
+
+ reset-gpios:
+ description:
+ Must be the device tree identifier of the RESET pin. If specified,
+ it will be asserted during driver probe. As the line is active high,
+ it should be marked GPIO_ACTIVE_HIGH.
+ maxItems: 1
+
+ standby-gpios:
+ description:
+ Must be the device tree identifier of the STBY pin. This pin is used
+ to place the AD7606 into one of two power-down modes, Standby mode or
+ Shutdown mode. As the line is active low, it should be marked
+ GPIO_ACTIVE_LOW.
+ maxItems: 1
+
+ adi,first-data-gpios:
+ description:
+ Must be the device tree identifier of the FRSTDATA pin.
+ The FRSTDATA output indicates when the first channel, V1, is
+ being read back on either the parallel, byte or serial interface.
+ As the line is active high, it should be marked GPIO_ACTIVE_HIGH.
+ maxItems: 1
+
+ adi,range-gpios:
+ description:
+ Must be the device tree identifier of the RANGE pin. The polarity on
+ this pin determines the input range of the analog input channels. If
+ this pin is tied to a logic high, the analog input range is ±10V for
+ all channels. If this pin is tied to a logic low, the analog input range
+ is ±5V for all channels. As the line is active high, it should be marked
+ GPIO_ACTIVE_HIGH.
+ maxItems: 1
+
+ adi,oversampling-ratio-gpios:
+ description:
+ Must be the device tree identifier of the over-sampling
+ mode pins. As the line is active high, it should be marked
+ GPIO_ACTIVE_HIGH.
+ maxItems: 1
+
+ adi,sw-mode:
+ description:
+ Software mode of operation, so far available only for ad7616.
+ It is enabled when all three oversampling mode pins are connected to
+ high level. The device is configured by the corresponding registers. If the
+ adi,oversampling-ratio-gpios property is defined, then the driver will set the
+ oversampling gpios to high. Otherwise, it is assumed that the pins are hardwired
+ to VDD.
+ maxItems: 1
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - spi-cpha
+ - avcc-supply
+ - interrupts
+ - adi,conversion-start-gpios
+
+examples:
+ - |
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "adi,ad7606-8";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ spi-cpol;
+
+ avcc-supply = <&adc_vref>;
+
+ interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpio>;
+
+ adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
+ adi,first-data-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
+ adi,oversampling-ratio-gpios = <&gpio 18 GPIO_ACTIVE_HIGH
+ &gpio 23 GPIO_ACTIVE_HIGH
+ &gpio 26 GPIO_ACTIVE_HIGH>;
+ standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>;
+ adi,sw-mode;
+ };
+ };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 052d7a8591fb..d2e465772071 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -900,7 +900,7 @@ L: linux-iio@...r.kernel.org
W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/iio/adc/ad7606.c
-F: Documentation/devicetree/bindings/iio/adc/adi,ad7606.txt
+F: Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
ANALOG DEVICES INC AD7768-1 DRIVER
M: Stefan Popa <stefan.popa@...log.com>
--
2.17.1
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