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author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-10-31 21:48:15 +0300 |
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committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-12-03 22:32:44 +0300 |
commit | f2c38f9fb4b0bda2ca59013446070a625bb367a7 (patch) | |
tree | 0492d62aa53783cfd4e0ce75e5fc08985ce34734 /Documentation/devicetree/bindings/iio/health/ti,afe4403.yaml | |
parent | 19ef7b70ca9487773c29b449adf0c70f540a0aab (diff) | |
download | linux-f2c38f9fb4b0bda2ca59013446070a625bb367a7.tar.xz |
dt-bindings:iio:health:ti,afe4403: txt to yaml 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 requests tx_sup.
I'll post a fix patch to change the driver to fix this as it makes
little sense.
Andrew's email is bouncing so until someone else steps up I have
listed myself as maintainer for this binding.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201031184854.745828-8-jic23@kernel.org
Diffstat (limited to 'Documentation/devicetree/bindings/iio/health/ti,afe4403.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/iio/health/ti,afe4403.yaml | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/health/ti,afe4403.yaml b/Documentation/devicetree/bindings/iio/health/ti,afe4403.yaml new file mode 100644 index 000000000000..d861526c5c42 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/health/ti,afe4403.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/health/ti,afe4403.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments AFE4403 Heart rate and Pulse Oximeter + +maintainers: + - Jonathan Cameron <jic23@kernel.org> + +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 + + spi-max-frequency: true + +additionalProperties: false + +required: + - compatible + - reg + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + + heart_mon@0 { + compatible = "ti,afe4403"; + reg = <0>; + spi-max-frequency = <10000000>; + tx-supply = <&vbat>; + interrupt-parent = <&gpio1>; + interrupts = <28 IRQ_TYPE_EDGE_RISING>; + reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>; + }; + }; +... |