On Sat, 31 Oct 2020 18:48:16 +0000
Jonathan Cameron <jic23@xxxxxxxxxx> wrote:
> From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
>
> This basically has same questions as for the afe4403. We could combine
> the two bindings, but as the drivers are separate and it would be a little
> fiddly due to different buses let's keep the separating.
> To repeat questions from the ti,afe4403 binding.
>
> A few questions came up whilst converting this one.
> 1) What is actually required?
> - Checking Linux driver, interrupt is not, and the tx-supply could
> be supplied by a stub regulator as long as it's always on.
> As such I have reduced the required list to just compatible and reg.
> 2) What is the regulator called?
> - It's tx-supply in the binding doc, but the driver request tx_sup
> I've left this alone for now. Andrew could you confirm what is
> intended for this?
>
> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> Cc: Andrew F. Davis <afd@xxxxxx>
Applied. with the maintainer switched to me for now as Andrew's email is
bouncing.
Thanks,
Jonathan
> ---
> .../bindings/iio/health/afe4404.txt | 29 -----------
> .../bindings/iio/health/ti,afe4404.yaml | 51 +++++++++++++++++++
> 2 files changed, 51 insertions(+), 29 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/iio/health/afe4404.txt b/Documentation/devicetree/bindings/iio/health/afe4404.txt
> deleted file mode 100644
> index 0b52830a0d9c..000000000000
> --- a/Documentation/devicetree/bindings/iio/health/afe4404.txt
> +++ /dev/null
> @@ -1,29 +0,0 @@
> -Texas Instruments AFE4404 Heart rate and Pulse Oximeter
> -
> -Required properties:
> - - compatible : Should be "ti,afe4404".
> - - reg : I2C address of the device.
> - - tx-supply : Regulator supply to transmitting LEDs.
> - - interrupts : The interrupt line the device ADC_RDY pin is
> - connected to. For details refer to,
> - ../interrupt-controller/interrupts.txt.
> -
> -Optional properties:
> - - reset-gpios : GPIO used to reset the device.
> - For details refer to, ../gpio/gpio.txt.
> -
> -Example:
> -
> -&i2c2 {
> - heart_mon@58 {
> - compatible = "ti,afe4404";
> - reg = <0x58>;
> -
> - tx-supply = <&vbat>;
> -
> - interrupt-parent = <&gpio1>;
> - interrupts = <28 IRQ_TYPE_EDGE_RISING>;
> -
> - reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
> - };
> -};
> diff --git a/Documentation/devicetree/bindings/iio/health/ti,afe4404.yaml b/Documentation/devicetree/bindings/iio/health/ti,afe4404.yaml
> new file mode 100644
> index 000000000000..187b99b22312
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/health/ti,afe4404.yaml
> @@ -0,0 +1,51 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/health/ti,afe4404.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Texas Instruments AFE4404 Heart rate and Pulse Oximeter
> +
> +maintainers:
> + - Andrew F. Davis <afd@xxxxxx>
> +
> +properties:
> + compatible:
> + const: ti,afe4403
> +
> + reg:
> + maxItems: 1
> +
> + tx-supply:
> + description: Supply to transmitting LEDs.
> +
> + interrupts:
> + maxItems: 1
> + description: Connected to ADC_RDY pin.
> +
> + reset-gpios: true
> +
> +additionalProperties: false
> +
> +required:
> + - compatible
> + - reg
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + heart_mon@58 {
> + compatible = "ti,afe4404";
> + reg = <0x58>;
> + tx-supply = <&vbat>;
> + interrupt-parent = <&gpio1>;
> + interrupts = <28 IRQ_TYPE_EDGE_RISING>;
> + reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
> + };
> + };
> +...
