* [PATCH 2/5] dt-bindings: add parallax ping sensors
@ 2019-11-07 13:00 Andreas Klinger
2019-11-10 16:59 ` Jonathan Cameron
2019-11-13 14:16 ` Rob Herring
0 siblings, 2 replies; 3+ messages in thread
From: Andreas Klinger @ 2019-11-07 13:00 UTC (permalink / raw)
To: robh+dt, jic23, mark.rutland
Cc: mripard, shawnguo, heiko, icenowy, laurent.pinchart, knaack.h,
lars, pmeerw, gregkh, christophe.jaillet, tglx, mchehab+samsung,
davem, paulmck, devicetree, linux-iio, linux-kernel
Add dt-bindings for parallax PING))) and LaserPING iio sensors, which
are used for measuring distances.
Signed-off-by: Andreas Klinger <ak@it-klinger.de>
---
.../bindings/iio/proximity/parallax-ping.yaml | 51 ++++++++++++++++++++++
1 file changed, 51 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
diff --git a/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml b/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
new file mode 100644
index 000000000000..ab8dbdf4f04a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/proximity/parallax-ping.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Parallax PING))) and LaserPING range finder
+
+maintainers:
+ - Andreas Klinger <ak@it-klinger.de>
+
+description: |
+ Bit-banging driver using one GPIO:
+ - ping-gpio is raised by the driver to start measurement
+ - direction of ping-gpio is then switched into input with an interrupt
+ for receiving distance value as PWM signal
+
+ Specifications about the devices can be found at:
+ http://parallax.com/sites/default/files/downloads/28041-LaserPING-2m-Rangefinder-Guide.pdf
+ http://parallax.com/sites/default/files/downloads/28015-PING-Documentation-v1.6.pdf
+
+properties:
+ compatible:
+ enum:
+ - parallax,ping
+ - parallax,laserping
+
+ ping-gpios:
+ description:
+ Definition of the GPIO for the triggering and echo (output and input)
+ This GPIO is set for about 5 us by the driver to tell the device it
+ should initiate the measurement cycle. Afterwards the GPIO is switched
+ to input direction with an interrupt. The device sets it and the
+ length of the input signal corresponds to the measured distance.
+ 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.
+ maxItems: 1
+
+required:
+ - compatible
+ - ping-gpios
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ proximity {
+ compatible = "parallax,laserping";
+ ping-gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
+ };
--
2.11.0
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH 2/5] dt-bindings: add parallax ping sensors
2019-11-07 13:00 [PATCH 2/5] dt-bindings: add parallax ping sensors Andreas Klinger
@ 2019-11-10 16:59 ` Jonathan Cameron
2019-11-13 14:16 ` Rob Herring
1 sibling, 0 replies; 3+ messages in thread
From: Jonathan Cameron @ 2019-11-10 16:59 UTC (permalink / raw)
To: Andreas Klinger
Cc: robh+dt, mark.rutland, mripard, shawnguo, heiko, icenowy,
laurent.pinchart, knaack.h, lars, pmeerw, gregkh,
christophe.jaillet, tglx, mchehab+samsung, davem, paulmck,
devicetree, linux-iio, linux-kernel
On Thu, 7 Nov 2019 14:00:29 +0100
Andreas Klinger <ak@it-klinger.de> wrote:
> Add dt-bindings for parallax PING))) and LaserPING iio sensors, which
> are used for measuring distances.
>
> Signed-off-by: Andreas Klinger <ak@it-klinger.de>
> ---
> .../bindings/iio/proximity/parallax-ping.yaml | 51 ++++++++++++++++++++++
> 1 file changed, 51 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
>
> diff --git a/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml b/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
> new file mode 100644
> index 000000000000..ab8dbdf4f04a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
> @@ -0,0 +1,51 @@
> +# SPDX-License-Identifier: GPL-2.0-or-later
Rob has been asking people if they mind adding a BSD-2-CLAUSE as an
and additional license on new bindings they have the copyright on.
Otherwise seems fine to me.
Thanks,
Jonathan
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/proximity/parallax-ping.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Parallax PING))) and LaserPING range finder
> +
> +maintainers:
> + - Andreas Klinger <ak@it-klinger.de>
> +
> +description: |
> + Bit-banging driver using one GPIO:
> + - ping-gpio is raised by the driver to start measurement
> + - direction of ping-gpio is then switched into input with an interrupt
> + for receiving distance value as PWM signal
> +
> + Specifications about the devices can be found at:
> + http://parallax.com/sites/default/files/downloads/28041-LaserPING-2m-Rangefinder-Guide.pdf
> + http://parallax.com/sites/default/files/downloads/28015-PING-Documentation-v1.6.pdf
> +
> +properties:
> + compatible:
> + enum:
> + - parallax,ping
> + - parallax,laserping
> +
> + ping-gpios:
> + description:
> + Definition of the GPIO for the triggering and echo (output and input)
> + This GPIO is set for about 5 us by the driver to tell the device it
> + should initiate the measurement cycle. Afterwards the GPIO is switched
> + to input direction with an interrupt. The device sets it and the
> + length of the input signal corresponds to the measured distance.
> + 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.
> + maxItems: 1
> +
> +required:
> + - compatible
> + - ping-gpios
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> + proximity {
> + compatible = "parallax,laserping";
> + ping-gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
> + };
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH 2/5] dt-bindings: add parallax ping sensors
2019-11-07 13:00 [PATCH 2/5] dt-bindings: add parallax ping sensors Andreas Klinger
2019-11-10 16:59 ` Jonathan Cameron
@ 2019-11-13 14:16 ` Rob Herring
1 sibling, 0 replies; 3+ messages in thread
From: Rob Herring @ 2019-11-13 14:16 UTC (permalink / raw)
To: Andreas Klinger
Cc: jic23, mark.rutland, mripard, shawnguo, heiko, icenowy,
laurent.pinchart, knaack.h, lars, pmeerw, gregkh,
christophe.jaillet, tglx, mchehab+samsung, davem, paulmck,
devicetree, linux-iio, linux-kernel
On Thu, Nov 07, 2019 at 02:00:29PM +0100, Andreas Klinger wrote:
> Add dt-bindings for parallax PING))) and LaserPING iio sensors, which
> are used for measuring distances.
>
> Signed-off-by: Andreas Klinger <ak@it-klinger.de>
> ---
> .../bindings/iio/proximity/parallax-ping.yaml | 51 ++++++++++++++++++++++
> 1 file changed, 51 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
>
> diff --git a/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml b/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
> new file mode 100644
> index 000000000000..ab8dbdf4f04a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
> @@ -0,0 +1,51 @@
> +# SPDX-License-Identifier: GPL-2.0-or-later
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/proximity/parallax-ping.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Parallax PING))) and LaserPING range finder
> +
> +maintainers:
> + - Andreas Klinger <ak@it-klinger.de>
> +
> +description: |
> + Bit-banging driver using one GPIO:
> + - ping-gpio is raised by the driver to start measurement
ping-gpios or "Ping GPIO"
> + - direction of ping-gpio is then switched into input with an interrupt
> + for receiving distance value as PWM signal
> +
> + Specifications about the devices can be found at:
> + http://parallax.com/sites/default/files/downloads/28041-LaserPING-2m-Rangefinder-Guide.pdf
> + http://parallax.com/sites/default/files/downloads/28015-PING-Documentation-v1.6.pdf
> +
> +properties:
> + compatible:
> + enum:
> + - parallax,ping
> + - parallax,laserping
> +
> + ping-gpios:
> + description:
> + Definition of the GPIO for the triggering and echo (output and input)
> + This GPIO is set for about 5 us by the driver to tell the device it
> + should initiate the measurement cycle. Afterwards the GPIO is switched
> + to input direction with an interrupt. The device sets it and the
> + length of the input signal corresponds to the measured distance.
> + 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.
> + maxItems: 1
> +
> +required:
> + - compatible
> + - ping-gpios
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> + proximity {
> + compatible = "parallax,laserping";
> + ping-gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
> + };
> --
> 2.11.0
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-11-07 13:00 [PATCH 2/5] dt-bindings: add parallax ping sensors Andreas Klinger
2019-11-10 16:59 ` Jonathan Cameron
2019-11-13 14:16 ` Rob Herring
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