From patchwork Tue Jun 29 22:03:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar Mahadev Lad X-Patchwork-Id: 468855 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C0893C11F69 for ; Tue, 29 Jun 2021 22:03:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A925961D72 for ; Tue, 29 Jun 2021 22:03:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235014AbhF2WGS (ORCPT ); Tue, 29 Jun 2021 18:06:18 -0400 Received: from relmlor1.renesas.com ([210.160.252.171]:61189 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S234871AbhF2WGP (ORCPT ); Tue, 29 Jun 2021 18:06:15 -0400 X-IronPort-AV: E=Sophos;i="5.83,310,1616425200"; d="scan'208";a="85915408" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 30 Jun 2021 07:03:46 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 24E9B40108F7; Wed, 30 Jun 2021 07:03:43 +0900 (JST) From: Lad Prabhakar To: Geert Uytterhoeven , Rob Herring , Jonathan Cameron , Lars-Peter Clausen , Philipp Zabel Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [PATCH 1/2] dt-bindings: iio: adc: Add binding documentation for Renesas RZ/G2L A/D converter Date: Tue, 29 Jun 2021 23:03:27 +0100 Message-Id: <20210629220328.13366-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210629220328.13366-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20210629220328.13366-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add binding documentation for Renesas RZ/G2L A/D converter block. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das --- .../bindings/iio/adc/renesas,rzg2l-adc.yaml | 121 ++++++++++++++++++ 1 file changed, 121 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml b/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml new file mode 100644 index 000000000000..db935d6d59eb --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml @@ -0,0 +1,121 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/renesas,rzg2l-adc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas RZ/G2L ADC + +maintainers: + - Lad Prabhakar + +description: | + A/D Converter block is a successive approximation analog-to-digital converter + with a 12-bit accuracy. Up to eight analog input channels can be selected. + Conversions can be performed in single or repeat mode. Result of the ADC is + stored in a 32-bit data register corresponding to each channel. + +properties: + compatible: + oneOf: + - items: + - enum: + - renesas,r9a07g044-adc # RZ/G2{L,LC} + - const: renesas,rzg2l-adc + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: converter clock + - description: peripheral clock + + clock-names: + items: + - const: adclk + - const: pclk + + power-domains: + maxItems: 1 + + resets: + maxItems: 2 + + reset-names: + items: + - const: presetn + - const: adrst-n + + renesas-rzg2l,adc-trigger-mode: + $ref: /schemas/types.yaml#/definitions/uint8 + description: Trigger mode for A/D converter + enum: + - 0 # Software trigger mode (Defaults) + - 1 # Asynchronous trigger using ADC_TRG trigger input pin + - 2 # Synchronous trigger (Trigger from MTU3a/GPT) + default: 0 + + gpios: + description: + ADC_TRG trigger input pin + maxItems: 1 + + renesas-rzg2l,adc-channels: + $ref: /schemas/types.yaml#/definitions/uint8-array + description: Input channels available on platform + uniqueItems: true + minItems: 1 + maxItems: 8 + items: + enum: [0, 1, 2, 3, 4, 5, 6, 7] + + "#io-channel-cells": + const: 1 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - power-domains + - resets + - reset-names + - renesas-rzg2l,adc-channels + - "#io-channel-cells" + +allOf: + - if: + properties: + renesas-rzg2l,adc-trigger-mode: + const: 1 + then: + required: + - gpios + +additionalProperties: false + +examples: + - | + #include + #include + + adc: adc@10059000 { + compatible = "renesas,r9a07g044-adc", "renesas,rzg2l-adc"; + reg = <0x10059000 0x400>; + interrupts = ; + clocks = <&cpg CPG_MOD R9A07G044_ADC_ADCLK>, + <&cpg CPG_MOD R9A07G044_ADC_PCLK>; + clock-names = "adclk", "pclk"; + power-domains = <&cpg>; + resets = <&cpg R9A07G044_ADC_PRESETN>, + <&cpg R9A07G044_ADC_ADRST_N>; + reset-names = "presetn", "adrst-n"; + #io-channel-cells = <1>; + renesas-rzg2l,adc-trigger-mode = /bits/ 8 <0>; + renesas-rzg2l,adc-channels = /bits/ 8 <0 1 2 3 4 5 6>; + };