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-rw-r--r--dts/Bindings/iio/adc/adi,ad7606.txt1
-rw-r--r--dts/Bindings/iio/adc/adi,ad7780.txt48
-rw-r--r--dts/Bindings/iio/adc/amlogic,meson-saradc.txt1
-rw-r--r--dts/Bindings/iio/adc/avia-hx711.txt24
-rw-r--r--dts/Bindings/iio/adc/avia-hx711.yaml66
-rw-r--r--dts/Bindings/iio/adc/imx7d-adc.txt2
-rw-r--r--dts/Bindings/iio/adc/lpc32xx-adc.txt5
-rw-r--r--dts/Bindings/iio/adc/qcom,spmi-vadc.txt1
-rw-r--r--dts/Bindings/iio/adc/ti-ads8344.txt19
9 files changed, 143 insertions, 24 deletions
diff --git a/dts/Bindings/iio/adc/adi,ad7606.txt b/dts/Bindings/iio/adc/adi,ad7606.txt
index d7b6241..d865246 100644
--- a/dts/Bindings/iio/adc/adi,ad7606.txt
+++ b/dts/Bindings/iio/adc/adi,ad7606.txt
@@ -7,6 +7,7 @@ Required properties for the AD7606:
* "adi,ad7606-8"
* "adi,ad7606-6"
* "adi,ad7606-4"
+ * "adi,ad7616"
- reg: SPI chip select number for the device
- spi-max-frequency: Max SPI frequency to use
see: Documentation/devicetree/bindings/spi/spi-bus.txt
diff --git a/dts/Bindings/iio/adc/adi,ad7780.txt b/dts/Bindings/iio/adc/adi,ad7780.txt
new file mode 100644
index 0000000..440e525
--- /dev/null
+++ b/dts/Bindings/iio/adc/adi,ad7780.txt
@@ -0,0 +1,48 @@
+* Analog Devices AD7170/AD7171/AD7780/AD7781
+
+Data sheets:
+
+- AD7170:
+ * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7170.pdf
+- AD7171:
+ * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7171.pdf
+- AD7780:
+ * https://www.analog.com/media/en/technical-documentation/data-sheets/ad7780.pdf
+- AD7781:
+ * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7781.pdf
+
+Required properties:
+
+- compatible: should be one of
+ * "adi,ad7170"
+ * "adi,ad7171"
+ * "adi,ad7780"
+ * "adi,ad7781"
+- reg: spi chip select number for the device
+- vref-supply: the regulator supply for the ADC reference voltage
+
+Optional properties:
+
+- powerdown-gpios: must be the device tree identifier of the PDRST pin. If
+ specified, it will be asserted during driver probe. As the
+ line is active high, it should be marked GPIO_ACTIVE_HIGH.
+- adi,gain-gpios: must be the device tree identifier of the GAIN pin. Only for
+ the ad778x chips. If specified, it will be asserted during
+ driver probe. As the line is active low, it should be marked
+ GPIO_ACTIVE_LOW.
+- adi,filter-gpios: must be the device tree identifier of the FILTER pin. Only
+ for the ad778x chips. If specified, it will be asserted
+ during driver probe. As the line is active low, it should be
+ marked GPIO_ACTIVE_LOW.
+
+Example:
+
+adc@0 {
+ compatible = "adi,ad7780";
+ reg = <0>;
+ vref-supply = <&vdd_supply>
+
+ powerdown-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>;
+ adi,gain-gpios = <&gpio 5 GPIO_ACTIVE_LOW>;
+ adi,filter-gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+};
diff --git a/dts/Bindings/iio/adc/amlogic,meson-saradc.txt b/dts/Bindings/iio/adc/amlogic,meson-saradc.txt
index 75c7759..d57e9df 100644
--- a/dts/Bindings/iio/adc/amlogic,meson-saradc.txt
+++ b/dts/Bindings/iio/adc/amlogic,meson-saradc.txt
@@ -9,6 +9,7 @@ Required properties:
- "amlogic,meson-gxl-saradc" for GXL
- "amlogic,meson-gxm-saradc" for GXM
- "amlogic,meson-axg-saradc" for AXG
+ - "amlogic,meson-g12a-saradc" for AXG
along with the generic "amlogic,meson-saradc"
- reg: the physical base address and length of the registers
- interrupts: the interrupt indicating end of sampling
diff --git a/dts/Bindings/iio/adc/avia-hx711.txt b/dts/Bindings/iio/adc/avia-hx711.txt
deleted file mode 100644
index 7222328..0000000
--- a/dts/Bindings/iio/adc/avia-hx711.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-* AVIA HX711 ADC chip for weight cells
- Bit-banging driver
-
-Required properties:
- - compatible: Should be "avia,hx711"
- - sck-gpios: Definition of the GPIO for the clock
- - dout-gpios: Definition of the GPIO for data-out
- See Documentation/devicetree/bindings/gpio/gpio.txt
- - avdd-supply: Definition of the regulator used as analog supply
-
-Optional properties:
- - clock-frequency: Frequency of PD_SCK in Hz
- Minimum value allowed is 10 kHz because of maximum
- high time of 50 microseconds.
-
-Example:
-weight {
- compatible = "avia,hx711";
- sck-gpios = <&gpio3 10 GPIO_ACTIVE_HIGH>;
- dout-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
- avdd-suppy = <&avdd>;
- clock-frequency = <100000>;
-};
-
diff --git a/dts/Bindings/iio/adc/avia-hx711.yaml b/dts/Bindings/iio/adc/avia-hx711.yaml
new file mode 100644
index 0000000..8a4100c
--- /dev/null
+++ b/dts/Bindings/iio/adc/avia-hx711.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/iio/adc/avia-hx711.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: AVIA HX711 ADC chip for weight cells
+
+maintainers:
+ - Andreas Klinger <ak@it-klinger.de>
+
+description: |
+ Bit-banging driver using two GPIOs:
+ - sck-gpio gives a clock to the sensor with 24 cycles for data retrieval
+ and up to 3 cycles for selection of the input channel and gain for the
+ next measurement
+ - dout-gpio is the sensor data the sensor responds to the clock
+
+ Specifications about the driver can be found at:
+ http://www.aviaic.com/ENProducts.aspx
+
+properties:
+ compatible:
+ enum:
+ - avia,hx711
+
+ sck-gpios:
+ description:
+ Definition of the GPIO for the clock (output). In the datasheet it is
+ named PD_SCK
+ maxItems: 1
+
+ dout-gpios:
+ description:
+ Definition of the GPIO for the data-out sent by the sensor in
+ response to the clock (input).
+ See Documentation/devicetree/bindings/gpio/gpio.txt for information
+ on how to specify a consumer gpio.
+ maxItems: 1
+
+ avdd-supply:
+ description:
+ Definition of the regulator used as analog supply
+ maxItems: 1
+
+ clock-frequency:
+ minimum: 20000
+ maximum: 2500000
+ default: 400000
+
+required:
+ - compatible
+ - sck-gpios
+ - dout-gpios
+ - avdd-supply
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ weight {
+ compatible = "avia,hx711";
+ sck-gpios = <&gpio3 10 GPIO_ACTIVE_HIGH>;
+ dout-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+ avdd-suppy = <&avdd>;
+ clock-frequency = <100000>;
+ };
diff --git a/dts/Bindings/iio/adc/imx7d-adc.txt b/dts/Bindings/iio/adc/imx7d-adc.txt
index 5c184b9..f1f3a55 100644
--- a/dts/Bindings/iio/adc/imx7d-adc.txt
+++ b/dts/Bindings/iio/adc/imx7d-adc.txt
@@ -10,6 +10,7 @@ Required properties:
- clocks: The root clock of the ADC controller
- clock-names: Must contain "adc", matching entry in the clocks property
- vref-supply: The regulator supply ADC reference voltage
+- #io-channel-cells: Must be 1 as per ../iio-bindings.txt
Example:
adc1: adc@30610000 {
@@ -19,4 +20,5 @@ adc1: adc@30610000 {
clocks = <&clks IMX7D_ADC_ROOT_CLK>;
clock-names = "adc";
vref-supply = <&reg_vcc_3v3_mcu>;
+ #io-channel-cells = <1>;
};
diff --git a/dts/Bindings/iio/adc/lpc32xx-adc.txt b/dts/Bindings/iio/adc/lpc32xx-adc.txt
index b3629d3..3a1bc66 100644
--- a/dts/Bindings/iio/adc/lpc32xx-adc.txt
+++ b/dts/Bindings/iio/adc/lpc32xx-adc.txt
@@ -6,6 +6,10 @@ Required properties:
region.
- interrupts: The ADC interrupt
+Optional:
+ - vref-supply: The regulator supply ADC reference voltage, optional
+ for legacy reason, but highly encouraging to us in new device tree
+
Example:
adc@40048000 {
@@ -13,4 +17,5 @@ Example:
reg = <0x40048000 0x1000>;
interrupt-parent = <&mic>;
interrupts = <39 0>;
+ vref-supply = <&vcc>;
};
diff --git a/dts/Bindings/iio/adc/qcom,spmi-vadc.txt b/dts/Bindings/iio/adc/qcom,spmi-vadc.txt
index c81993f..c878768 100644
--- a/dts/Bindings/iio/adc/qcom,spmi-vadc.txt
+++ b/dts/Bindings/iio/adc/qcom,spmi-vadc.txt
@@ -13,6 +13,7 @@ VADC node:
Definition: Should contain "qcom,spmi-vadc".
Should contain "qcom,spmi-adc5" for PMIC5 ADC driver.
Should contain "qcom,spmi-adc-rev2" for PMIC rev2 ADC driver.
+ Should contain "qcom,pms405-adc" for PMS405 PMIC
- reg:
Usage: required
diff --git a/dts/Bindings/iio/adc/ti-ads8344.txt b/dts/Bindings/iio/adc/ti-ads8344.txt
new file mode 100644
index 0000000..e47c375
--- /dev/null
+++ b/dts/Bindings/iio/adc/ti-ads8344.txt
@@ -0,0 +1,19 @@
+* Texas Instruments ADS8344 A/DC chip
+
+Required properties:
+ - compatible: Must be "ti,ads8344"
+ - reg: SPI chip select number for the device
+ - vref-supply: phandle to a regulator node that supplies the
+ reference voltage
+
+Recommended properties:
+ - spi-max-frequency: Definition as per
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+adc@0 {
+ compatible = "ti,ads8344";
+ reg = <0>;
+ vref-supply = <&refin_supply>;
+ spi-max-frequency = <10000000>;
+};