Adding upstream version 4.19.249.upstream/4.19.249upstream

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

3 files changed, 85 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/iio/proximity/as3935.txt b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
new file mode 100644
index 000000000..849115585
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
@@ -0,0 +1,34 @@
+Austrian Microsystems AS3935 Franklin lightning sensor device driver
+
+Required properties:
+	- compatible: must be "ams,as3935"
+	- reg: SPI chip select number for the device
+	- spi-max-frequency: specifies maximum SPI clock frequency
+	- spi-cpha: SPI Mode 1. Refer to spi/spi-bus.txt for generic SPI
+	slave node bindings.
+	- interrupts : the sole interrupt generated by the device
+
+	Refer to interrupt-controller/interrupts.txt for generic
+	interrupt client node bindings.
+
+Optional properties:
+	- ams,tuning-capacitor-pf: Calibration tuning capacitor stepping
+	  value 0 - 120pF. This will require using the calibration data from
+	  the manufacturer.
+	- ams,nflwdth: Set the noise and watchdog threshold register on
+	  startup. This will need to set according to the noise from the
+	  MCU board, and possibly the local environment. Refer to the
+	  datasheet for the threshold settings.
+
+Example:
+
+as3935@0 {
+	compatible = "ams,as3935";
+	reg = <0>;
+	spi-max-frequency = <400000>;
+	spi-cpha;
+	interrupt-parent = <&gpio1>;
+	interrupts = <16 1>;
+	ams,tuning-capacitor-pf = <80>;
+	ams,nflwdth = <0x44>;
+};
diff --git a/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.txt b/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.txt
new file mode 100644
index 000000000..d4dc7a227
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.txt
@@ -0,0 +1,28 @@
+* Devantech SRF04 ultrasonic range finder
+  Bit-banging driver using two GPIOs
+
+Required properties:
+ - compatible:	Should be "devantech,srf04"
+
+ - trig-gpios:	Definition of the GPIO for the triggering (output)
+		This GPIO is set for about 10 us by the driver to tell the
+		device it should initiate the measurement cycle.
+
+ - echo-gpios:	Definition of the GPIO for the echo (input)
+		This GPIO is set by the device as soon as an ultrasonic
+		burst is sent out and reset when the first echo is
+		received.
+		Thus this GPIO is set while the ultrasonic waves are doing
+		one round trip.
+		It needs to be an GPIO which is able to deliver an
+		interrupt because the time between two interrupts is
+		measured in the driver.
+		See Documentation/devicetree/bindings/gpio/gpio.txt for
+		information on how to specify a consumer gpio.
+
+Example:
+srf04@0 {
+	compatible = "devantech,srf04";
+	trig-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
+	echo-gpios = <&gpio2  6 GPIO_ACTIVE_HIGH>;
+};
diff --git a/Documentation/devicetree/bindings/iio/proximity/sx9500.txt b/Documentation/devicetree/bindings/iio/proximity/sx9500.txt
new file mode 100644
index 000000000..c54455db3
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/sx9500.txt
@@ -0,0 +1,23 @@
+Semtech's SX9500 capacitive proximity button device driver
+
+Required properties:
+	- compatible: must be "semtech,sx9500"
+	- reg: i2c address where to find the device
+	- interrupts : the sole interrupt generated by the device
+
+	Refer to interrupt-controller/interrupts.txt for generic
+	interrupt client node bindings.
+
+Optional properties:
+	- reset-gpios: Reference to the GPIO connected to the device's active
+	  low reset pin.
+
+Example:
+
+sx9500@28 {
+	compatible = "semtech,sx9500";
+	reg = <0x28>;
+	interrupt-parent = <&gpio2>;
+	interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
+	reset-gpios = <&gpio2 10 GPIO_ACTIVE_LOW>;
+};