From patchwork Mon Jan 28 13:02:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Artur Rojek X-Patchwork-Id: 1031904 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=artur-rojek.eu Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 43p8sr3sMNz9s9h for ; Tue, 29 Jan 2019 00:02:08 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726683AbfA1NCC (ORCPT ); Mon, 28 Jan 2019 08:02:02 -0500 Received: from relay5-d.mail.gandi.net ([217.70.183.197]:46801 "EHLO relay5-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726611AbfA1NCC (ORCPT ); Mon, 28 Jan 2019 08:02:02 -0500 X-Originating-IP: 91.192.165.7 Received: from pc.localdomain (unknown [91.192.165.7]) (Authenticated sender: contact@artur-rojek.eu) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id 9847A1C0003; Mon, 28 Jan 2019 13:01:57 +0000 (UTC) From: Artur Rojek To: Jonathan Cameron , Rob Herring , Mark Rutland Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Paul Cercueil , Artur Rojek Subject: [PATCH 1/3] dt-bindings: iio/adc: Add docs for Ingenic JZ47xx SoCs ADC. Date: Mon, 28 Jan 2019 14:02:39 +0100 Message-Id: <20190128130241.5027-1-contact@artur-rojek.eu> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add documentation for the ADC controller on JZ47xx SoCs, used by the ingenic-adc driver. Signed-off-by: Artur Rojek --- .../bindings/iio/adc/ingenic,adc.txt | 48 +++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/ingenic,adc.txt diff --git a/Documentation/devicetree/bindings/iio/adc/ingenic,adc.txt b/Documentation/devicetree/bindings/iio/adc/ingenic,adc.txt new file mode 100644 index 000000000000..884f459bb9b9 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/ingenic,adc.txt @@ -0,0 +1,48 @@ +* Ingenic JZ47xx ADC controller IIO bindings + +Required properties: + +- compatible: Should be one of: + * ingenic,jz4725b-adc + * ingenic,jz4740-adc +- reg: ADC controller registers location and length. +- clocks: phandle to the SoC's ADC clock. +- clock-names: Must be set to "adc". +- #io-channel-cells: Must be set to <1> to indicate channels are selected + by index. + +ADC clients must use the format described in iio-bindings.txt, giving +a phandle and IIO specifier pair ("io-channels") to the ADC controller. + +Example: + +#include + +adc: adc@10070000 { + compatible = "ingenic,jz4740-adc"; + #io-channel-cells = <1>; + + reg = <0x10070000 0x30>; + + clocks = <&cgu JZ4740_CLK_ADC>; + clock-names = "adc"; + + interrupt-parent = <&intc>; + interrupts = <18>; +}; + +adc-keys { + ... + compatible = "adc-keys"; + io-channels = <&adc INGENIC_ADC_AUX>; + io-channel-names = "buttons"; + ... +}; + +battery { + ... + compatible = "ingenic,jz4740-battery", + io-channels = <&adc INGENIC_ADC_BATTERY>; + io-channel-names = "battery"; + ... +};