From patchwork Sun Dec 6 19:52:14 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Pargmann X-Patchwork-Id: 7779181 Return-Path: X-Original-To: patchwork-linux-input@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id EEC02BEEE1 for ; Sun, 6 Dec 2015 19:52:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1C082203F3 for ; Sun, 6 Dec 2015 19:52:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 295AB203EC for ; Sun, 6 Dec 2015 19:52:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754381AbbLFTwZ (ORCPT ); Sun, 6 Dec 2015 14:52:25 -0500 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:45302 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754323AbbLFTwY (ORCPT ); Sun, 6 Dec 2015 14:52:24 -0500 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1a5fM2-0005yC-Lc; Sun, 06 Dec 2015 20:52:18 +0100 Received: from mpa by dude.hi.pengutronix.de with local (Exim 4.86) (envelope-from ) id 1a5fMD-000089-0y; Sun, 06 Dec 2015 20:52:29 +0100 From: Markus Pargmann To: Shawn Guo , Dmitry Torokhov , Jonathan Cameron , Lee Jones Cc: Denis Carikli , =?UTF-8?q?Eric=20B=C3=A9nard?= , Sascha Hauer , devicetree@vger.kernel.org, linux-input@vger.kernel.org, linux-iio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Hartmut Knaack , Fabio Estevam , Markus Pargmann Subject: [PATCH v9 1/8] ARM: dt: Binding documentation for imx25 ADC/TSC Date: Sun, 6 Dec 2015 20:52:14 +0100 Message-Id: <1449431542-1892-2-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 2.6.2 In-Reply-To: <1449431542-1892-1-git-send-email-mpa@pengutronix.de> References: <1449431542-1892-1-git-send-email-mpa@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: mpa@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-input@vger.kernel.org Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This documentation describes the devicetree bindings for the ADC/Touchscreen unit of the i.MX25 SoC. Signed-off-by: Markus Pargmann Acked-by: Jonathan Cameron Acked-by: Rob Herring --- Notes: Changes in v9: - Fixed some style things. Changes in v6: - Removed adc-ref property and replaced it with refp and refn for positive and negative references. The properties are optional now as the default behaviour is a positive internal reference voltage and ADC GND as negative reference. .../devicetree/bindings/mfd/fsl-imx25-tsadc.txt | 47 ++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt diff --git a/Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt b/Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt new file mode 100644 index 000000000000..b03505286997 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt @@ -0,0 +1,47 @@ +Freescale MX25 ADC/TSC MultiFunction Device (MFD) + +This device combines two general purpose conversion queues one used for general +ADC and the other used for touchscreens. + +Required properties: + - compatible: Should be "fsl,imx25-tsadc". + - reg: Start address and size of the memory area of + the device + - interrupts: Interrupt for this device + (See: ../interrupt-controller/interrupts.txt) + - clocks: An 'ipg' clock (See: ../clock/clock-bindings.txt) + - interrupt-controller: This device is an interrupt controller. It + controls the interrupts of both + conversion queues. + - #interrupt-cells: Should be '<1>'. + - #address-cells: Should be '<1>'. + - #size-cells: Should be '<1>'. + +This device includes two conversion queues which can be added as subnodes. +The first queue is for the touchscreen, the second for general purpose ADC. + +Example: + tscadc: tscadc@50030000 { + compatible = "fsl,imx25-tsadc"; + reg = <0x50030000 0xc>; + interrupts = <46>; + clocks = <&clks 119>; + clock-names = "ipg"; + interrupt-controller; + #interrupt-cells = <1>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + tsc: tcq@50030400 { + compatible = "fsl,imx25-tcq"; + reg = <0x50030400 0x60>; + ... + }; + + adc: gcq@50030800 { + compatible = "fsl,imx25-gcq"; + reg = <0x50030800 0x60>; + ... + }; + };