From patchwork Wed Dec 14 13:35:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bough Chen X-Patchwork-Id: 13073192 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6EEADC4332F for ; Wed, 14 Dec 2022 13:58:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238500AbiLNN6r (ORCPT ); Wed, 14 Dec 2022 08:58:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60002 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238314AbiLNN6q (ORCPT ); Wed, 14 Dec 2022 08:58:46 -0500 Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E715C2018D; Wed, 14 Dec 2022 05:58:43 -0800 (PST) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 8BE0F20180D; Wed, 14 Dec 2022 14:58:42 +0100 (CET) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 53EF0201082; Wed, 14 Dec 2022 14:58:42 +0100 (CET) Received: from local (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id B67BA1820F59; Wed, 14 Dec 2022 21:58:40 +0800 (+08) From: haibo.chen@nxp.com To: jic23@kernel.org, lars@metafoo.de, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de Cc: festevam@gmail.com, linux-imx@nxp.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, haibo.chen@nxp.com Subject: [PATCH v2 2/3] dt-bindings: iio: adc: Add binding documentation for NXP IMX93 ADC Date: Wed, 14 Dec 2022 21:35:38 +0800 Message-Id: <1671024939-29322-2-git-send-email-haibo.chen@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1671024939-29322-1-git-send-email-haibo.chen@nxp.com> References: <1671024939-29322-1-git-send-email-haibo.chen@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Haibo Chen The IMX93 SoC has a new ADC IP, so add binding documentation for NXP IMX93 ADC. Signed-off-by: Haibo Chen --- .../bindings/iio/adc/nxp,imx93-adc.yaml | 79 +++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/nxp,imx93-adc.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/nxp,imx93-adc.yaml b/Documentation/devicetree/bindings/iio/adc/nxp,imx93-adc.yaml new file mode 100644 index 000000000000..229bb79e255c --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/nxp,imx93-adc.yaml @@ -0,0 +1,79 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/nxp,imx93-adc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP iMX93 ADC bindings + +maintainers: + - Haibo Chen + +description: + The ADC on iMX93 is a 8-channel 12-bit 1MS/s ADC with 4 channels + connected to pins. it support normal and inject mode, include + One-Shot and Scan (continuous) conversions. Programmable DMA + enables for each channel Also this ADC contain alternate analog + watchdog thresholds, select threshold through input ports. And + also has Self-test logic and Software-initiated calibration. + +properties: + compatible: + const: nxp,imx93-adc + + reg: + maxItems: 1 + + interrupts: + description: + line 0 for WDGnL (watchdog threshold) interrupt requests. + line 1 for WDGnH (watchdog threshold) interrupt requests. + line 2 for normal conversion, include EOC (End of Conversion) + interrupt request, ECH (End of Chain) interrupt request, + JEOC (End of Injected Conversion mode) interrupt request + and JECH (End of injected Chain) interrupt request. + line 3 for Self-testing Interrupts. + maxItems: 4 + + clocks: + maxItems: 1 + + vref-supply: + description: + The reference voltage which used to establish channel scaling. + + "#io-channel-cells": + const: 1 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - vref-supply + - "#io-channel-cells" + +additionalProperties: false + +examples: + - | + #include + #include + #include + soc { + #address-cells = <1>; + #size-cells = <1>; + adc@44530000 { + compatible = "nxp,imx93-adc"; + reg = <0x44530000 0x10000>; + interrupts = , + , + , + ; + clocks = <&clk IMX93_CLK_ADC1_GATE>; + clock-names = "ipg"; + vref-supply = <®_vref_1v8>; + }; + }; +...