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Message-ID: <20250706115319.4f663960@jic23-huawei> Date: Sun, 6 Jul 2025 11:53:19 +0100 From: Jonathan Cameron <jic23@...nel.org> To: Waqar Hameed <waqar.hameed@...s.com> Cc: David Lechner <dlechner@...libre.com>, Nuno Sá <nuno.sa@...log.com>, "Andy Shevchenko" <andy@...nel.org>, Rob Herring <robh@...nel.org>, "Krzysztof Kozlowski" <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, <kernel@...s.com>, <linux-iio@...r.kernel.org>, <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org> Subject: Re: [PATCH v3 2/3] dt-bindings: iio: proximity: Add Nicera D3-323-AA PIR sensor On Fri, 4 Jul 2025 18:14:38 +0200 Waqar Hameed <waqar.hameed@...s.com> wrote: > Nicera D3-323-AA is a PIR sensor for human detection. It has two GPIOs > for detection and data communication. > > Signed-off-by: Waqar Hameed <waqar.hameed@...s.com> > --- > .../iio/proximity/nicera,d3323aa.yaml | 62 +++++++++++++++++++ > 1 file changed, 62 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/proximity/nicera,d3323aa.yaml > > diff --git a/Documentation/devicetree/bindings/iio/proximity/nicera,d3323aa.yaml b/Documentation/devicetree/bindings/iio/proximity/nicera,d3323aa.yaml > new file mode 100644 > index 000000000000..65d9b44fcd5e > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/proximity/nicera,d3323aa.yaml > @@ -0,0 +1,62 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/iio/proximity/nicera,d3323aa.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Nicera D3-323-AA PIR sensor > + > +maintainers: > + - Waqar Hameed <waqar.hameed@...s.com> > + > +description: | > + PIR sensor for human detection. > + Datasheet: https://www.endrich.com/Datenbl%C3%A4tter/Sensoren/D3-323-AA_e.pdf > + > +properties: > + compatible: > + const: nicera,d3323aa > + > + vdd-supply: > + description: > + Supply voltage (1.8 to 5.5 V). > + > + vout-clk-gpios: > + maxItems: 1 > + description: > + GPIO for clock and detection. > + After reset, the device signals with two falling edges on this pin that it > + is ready for configuration (within 1.2 s). > + During configuration, it is used as clock for data reading and writing (on > + data-gpios). > + After all this, when device is in operational mode, it signals on this pin > + for any detections. Don't start a new line for a new sentence. > + > + data-gpios: > + maxItems: 1 > + description: > + GPIO for data reading and writing. This is denoted "DO (SI)" in datasheet. > + During configuration, this pin is used for writing and reading > + configuration data (together with vout-clk-gpios as clock). > + After this, during operational mode, the device will output serial data on > + this GPIO. > + > +required: > + - compatible > + - vdd-supply > + - vout-clk-gpios > + - data-gpios > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + > + proximity { > + compatible = "nicera,d3323aa"; > + vdd-supply = <®ulator_3v3>; > + vout-clk-gpios = <&gpio 78 GPIO_ACTIVE_HIGH>; > + data-gpios = <&gpio 76 GPIO_ACTIVE_HIGH>; > + }; > +...
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