Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/iio/adc/ti-adc128s052.txt b/Documentation/devicetree/bindings/iio/adc/ti-adc128s052.txt
new file mode 100644
index 000000000..daa2b2c29
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti-adc128s052.txt
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+* Texas Instruments' ADC128S052, ADC122S021 and ADC124S021 ADC chip
+
+Required properties:
+ - compatible: Should be "ti,adc128s052", "ti,adc122s021" or "ti,adc124s021"
+ - reg: spi chip select number for the device
+ - vref-supply: The regulator supply for ADC reference voltage
+
+Recommended properties:
+ - spi-max-frequency: Definition as per
+		Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+adc@0 {
+	compatible = "ti,adc128s052";
+	reg = <0>;
+	vref-supply = <&vdd_supply>;
+	spi-max-frequency = <1000000>;
+};