From patchwork Sun Aug 30 16:11:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 11745217 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0220213B1 for ; Sun, 30 Aug 2020 16:14:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DF22C2071B for ; Sun, 30 Aug 2020 16:14:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598804079; bh=NBMiRsEkFf78zUwrlRbxXbv0EhUvpXl4LtZf4x/AEQM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BlLNBmZr3xrLWNL4i0Y40OeW9nkf7NdmUvxhqjUUq8AU+O34pNkXUc6888aaV4H8W FTQCNZjXIrzSZaXIcb2WJCWIoKzmBGifo9X/8snu+otA+PC2E5LPT/CnO9Vni0nnXg hfJ+sVAWdBuHgbM3cX3Mu/gOk/ih1bEiv0JGKRSo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726173AbgH3QOh (ORCPT ); Sun, 30 Aug 2020 12:14:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:42942 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725993AbgH3QOf (ORCPT ); Sun, 30 Aug 2020 12:14:35 -0400 Received: from localhost.localdomain (cpc149474-cmbg20-2-0-cust94.5-4.cable.virginm.net [82.4.196.95]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B3CD620720; Sun, 30 Aug 2020 16:14:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598804074; bh=NBMiRsEkFf78zUwrlRbxXbv0EhUvpXl4LtZf4x/AEQM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SX7TmiQ2t/DoGLuY/p5MJpQkxnn6h0+1ko4YXd+S9e34q1MkmynHoiKjMqo77uVLH T/6HkQ5Kv3UUf3xLxhokSQw4Ct1S2RTJIj9yFIICyff5WH+lpmD2zSUSlo3eOaQvZ8 rrYXaJIHXBHwTNegKpRGp/ETDtBhNCVAXotfQzfc= From: Jonathan Cameron To: linux-iio@vger.kernel.org Cc: Rob Herring , devicetree@vger.kernel.org, Jonathan Cameron , Akinobu Mita Subject: [PATCH v2 1/2] dt-bindings: iio: adc: ti,adc12138 yaml conversion. Date: Sun, 30 Aug 2020 17:11:53 +0100 Message-Id: <20200830161154.3201-2-jic23@kernel.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200830161154.3201-1-jic23@kernel.org> References: <20200830161154.3201-1-jic23@kernel.org> MIME-Version: 1.0 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Jonathan Cameron Simple binding conversion from txt to yaml. Only addition was #io-channel-cells to allow for potential consumers of the channels on this device. Signed-off-by: Jonathan Cameron Cc: Akinobu Mita Reviewed-by: Rob Herring --- Changes: * Fix missing include. * Fix typo in one of the supplies. * Fix spacing wrt to brackets. .../bindings/iio/adc/ti,adc12138.yaml | 86 +++++++++++++++++++ .../bindings/iio/adc/ti-adc12138.txt | 37 -------- 2 files changed, 86 insertions(+), 37 deletions(-) create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml delete mode 100644 Documentation/devicetree/bindings/iio/adc/ti-adc12138.txt diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml new file mode 100644 index 000000000000..ec3b2edf1fb7 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/ti,adc12138.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments ADC12138 and similar self-calibrating ADCs + +maintainers: + - Akinobu Mita + +description: | + 13 bit ADCs with 1, 2 or 8 inputs and self calibrating circuitry to + correct for linearity, zero and full scale errors. + +properties: + compatible: + enum: + - ti,adc12130 + - ti,adc12132 + - ti,adc12138 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + description: End of Conversion (EOC) interrupt + + clocks: + maxItems: 1 + description: Conversion clock input. + + spi-max-frequency: true + + vref-p-supply: + description: The regulator supply for positive analog voltage reference + + vref-n-supply: + description: | + The regulator supply for negative analog voltage reference + (Note that this must not go below GND or exceed vref-p) + If not specified, this is assumed to be analog ground. + + ti,acquisition-time: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 6, 10, 18, 34 ] + description: | + The number of conversion clock periods for the S/H's acquisition time. + For high source impedances, this value can be increased to 18 or 34. + For less ADC accuracy and/or slower CCLK frequencies this value may be + decreased to 6. See section 6.0 INPUT SOURCE RESISTANCE in the + datasheet for details. + + "#io-channel-cells": + const: 1 + +required: + - compatible + - reg + - interrupts + - clocks + - vref-p-supply + +additionalProperties: false + +examples: + - | + #include + spi { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + compatible = "ti,adc12138"; + reg = <0>; + interrupts = <28 IRQ_TYPE_EDGE_RISING>; + interrupt-parent = <&gpio1>; + clocks = <&cclk>; + vref-p-supply = <&ldo4_reg>; + spi-max-frequency = <5000000>; + ti,acquisition-time = <6>; + #io-channel-cells = <1>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/adc/ti-adc12138.txt b/Documentation/devicetree/bindings/iio/adc/ti-adc12138.txt deleted file mode 100644 index 049a1d36f013..000000000000 --- a/Documentation/devicetree/bindings/iio/adc/ti-adc12138.txt +++ /dev/null @@ -1,37 +0,0 @@ -* Texas Instruments' ADC12130/ADC12132/ADC12138 - -Required properties: - - compatible: Should be one of - * "ti,adc12130" - * "ti,adc12132" - * "ti,adc12138" - - reg: SPI chip select number for the device - - interrupts: Should contain interrupt for EOC (end of conversion) - - clocks: phandle to conversion clock input - - spi-max-frequency: Definision as per - Documentation/devicetree/bindings/spi/spi-bus.txt - - vref-p-supply: The regulator supply for positive analog voltage reference - -Optional properties: - - vref-n-supply: The regulator supply for negative analog voltage reference - (Note that this must not go below GND or exceed vref-p) - If not specified, this is assumed to be analog ground. - - ti,acquisition-time: The number of conversion clock periods for the S/H's - acquisition time. Should be one of 6, 10, 18, 34. If not specified, - default value of 10 is used. - For high source impedances, this value can be increased to 18 or 34. - For less ADC accuracy and/or slower CCLK frequencies this value may be - decreased to 6. See section 6.0 INPUT SOURCE RESISTANCE in the - datasheet for details. - -Example: -adc@0 { - compatible = "ti,adc12138"; - reg = <0>; - interrupts = <28 IRQ_TYPE_EDGE_RISING>; - interrupt-parent = <&gpio1>; - clocks = <&cclk>; - vref-p-supply = <&ldo4_reg>; - spi-max-frequency = <5000000>; - ti,acquisition-time = <6>; -};