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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
dt-bindings: iio: adc: Add NXP IMX93 ADC
The IMX93 SoC has a new ADC IP, so add binding documentation
for NXP IMX93 ADC.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://lore.kernel.org/r/20230117135137.1735536-3-haibo.chen@nxp.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
authored by
Haibo Chen
and committed by
Jonathan Cameron
354f23ac
7d02296a
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Documentation/devicetree/bindings/iio/adc/nxp,imx93-adc.yaml
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Documentation/devicetree/bindings/iio/adc/nxp,imx93-adc.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/adc/nxp,imx93-adc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: NXP iMX93 ADC
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maintainers:
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- Haibo Chen <haibo.chen@nxp.com>
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description:
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The ADC on iMX93 is a 8-channel 12-bit 1MS/s ADC with 4 channels
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connected to pins. it support normal and inject mode, include
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One-Shot and Scan (continuous) conversions. Programmable DMA
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enables for each channel Also this ADC contain alternate analog
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watchdog thresholds, select threshold through input ports. And
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also has Self-test logic and Software-initiated calibration.
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properties:
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compatible:
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const: nxp,imx93-adc
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reg:
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maxItems: 1
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interrupts:
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items:
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- description: WDGnL, watchdog threshold interrupt requests.
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- description: WDGnH, watchdog threshold interrupt requests.
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- description: normal conversion, include EOC (End of Conversion),
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ECH (End of Chain), JEOC (End of Injected Conversion) and
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JECH (End of injected Chain).
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- description: Self-testing Interrupts.
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clocks:
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maxItems: 1
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clock-names:
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const: ipg
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vref-supply:
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description:
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The reference voltage which used to establish channel scaling.
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"#io-channel-cells":
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const: 1
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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- vref-supply
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- "#io-channel-cells"
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/clock/imx93-clock.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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soc {
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#address-cells = <1>;
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#size-cells = <1>;
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adc@44530000 {
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compatible = "nxp,imx93-adc";
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reg = <0x44530000 0x10000>;
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interrupts = <GIC_SPI 217 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 218 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 219 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&clk IMX93_CLK_ADC1_GATE>;
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clock-names = "ipg";
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vref-supply = <®_vref_1v8>;
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#io-channel-cells = <1>;
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};
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};
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...