From 50a6edb1b6e08643442386e8f81acc8123d17931 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Sun, 28 Aug 2016 23:52:49 +0900 Subject: iio: adc: add ADC12130/ADC12132/ADC12138 ADC driver This adds Texas Instruments' ADC12130/ADC12132/ADC12138 12-bit plus sign ADC driver. I have tested with the ADC12138. The ADC12130 and ADC12132 are not tested but these are similar to ADC12138 except that the mode programming instruction is a bit different. Signed-off-by: Akinobu Mita Acked-by: Rob Herring Cc: Jonathan Cameron Cc: Hartmut Knaack Cc: Lars-Peter Clausen Cc: Peter Meerwald Signed-off-by: Jonathan Cameron --- .../devicetree/bindings/iio/adc/ti-adc12138.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/ti-adc12138.txt (limited to 'Documentation/devicetree/bindings/iio') diff --git a/Documentation/devicetree/bindings/iio/adc/ti-adc12138.txt b/Documentation/devicetree/bindings/iio/adc/ti-adc12138.txt new file mode 100644 index 000000000000..049a1d36f013 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/ti-adc12138.txt @@ -0,0 +1,37 @@ +* Texas Instruments' ADC12130/ADC12132/ADC12138 + +Required properties: + - compatible: Should be one of + * "ti,adc12130" + * "ti,adc12132" + * "ti,adc12138" + - reg: SPI chip select number for the device + - interrupts: Should contain interrupt for EOC (end of conversion) + - clocks: phandle to conversion clock input + - spi-max-frequency: Definision as per + Documentation/devicetree/bindings/spi/spi-bus.txt + - vref-p-supply: The regulator supply for positive analog voltage reference + +Optional properties: + - vref-n-supply: The regulator supply for negative analog voltage reference + (Note that this must not go below GND or exceed vref-p) + If not specified, this is assumed to be analog ground. + - ti,acquisition-time: The number of conversion clock periods for the S/H's + acquisition time. Should be one of 6, 10, 18, 34. If not specified, + default value of 10 is used. + For high source impedances, this value can be increased to 18 or 34. + For less ADC accuracy and/or slower CCLK frequencies this value may be + decreased to 6. See section 6.0 INPUT SOURCE RESISTANCE in the + datasheet for details. + +Example: +adc@0 { + compatible = "ti,adc12138"; + reg = <0>; + interrupts = <28 IRQ_TYPE_EDGE_RISING>; + interrupt-parent = <&gpio1>; + clocks = <&cclk>; + vref-p-supply = <&ldo4_reg>; + spi-max-frequency = <5000000>; + ti,acquisition-time = <6>; +}; -- cgit v1.2.3 From a5c8b11a361065db028721c62aa880bfe0736aa6 Mon Sep 17 00:00:00 2001 From: Christoph Fritz Date: Sat, 3 Sep 2016 12:30:00 +0200 Subject: iio: sx9500: add final devicetree support This makes sx9500 driver usable on devicetree based platforms too. Signed-off-by: Christoph Fritz Reviewed-by: Fabio Estevam Reviewed-by: Vlad Dogaru Signed-off-by: Jonathan Cameron --- .../devicetree/bindings/iio/proximity/sx9500.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/proximity/sx9500.txt (limited to 'Documentation/devicetree/bindings/iio') diff --git a/Documentation/devicetree/bindings/iio/proximity/sx9500.txt b/Documentation/devicetree/bindings/iio/proximity/sx9500.txt new file mode 100644 index 000000000000..b301dd2b35da --- /dev/null +++ b/Documentation/devicetree/bindings/iio/proximity/sx9500.txt @@ -0,0 +1,24 @@ +Semtech's SX9500 capacitive proximity button device driver + +Required properties: + - compatible: must be "semtech,sx9500" + - reg: i2c address where to find the device + - interrupt-parent : should be the phandle for the interrupt controller + - 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>; +}; -- cgit v1.2.3