From patchwork Tue Oct 20 09:05:00 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Stein X-Patchwork-Id: 532845 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id B41441401E7 for ; Tue, 20 Oct 2015 20:05:17 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751660AbbJTJFP (ORCPT ); Tue, 20 Oct 2015 05:05:15 -0400 Received: from webbox1416.server-home.net ([77.236.96.61]:35345 "EHLO webbox1416.server-home.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752013AbbJTJFK (ORCPT ); Tue, 20 Oct 2015 05:05:10 -0400 Received: from imapserver.systec-electronic.com (unknown [212.185.67.146]) by webbox1416.server-home.net (Postfix) with ESMTPA id 638EA27A54F; Tue, 20 Oct 2015 11:05:08 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by imapserver.systec-electronic.com (Postfix) with ESMTP id 53CC9DA0C4F; Tue, 20 Oct 2015 11:05:08 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at imapserver.systec-electronic.com Received: from imapserver.systec-electronic.com ([127.0.0.1]) by localhost (imapserver.systec-electronic.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id s5f4g2YlBnGQ; Tue, 20 Oct 2015 11:05:06 +0200 (CEST) Received: from ws-stein.systec.local (ws-stein.systec.local [192.168.10.125]) by imapserver.systec-electronic.com (Postfix) with ESMTP id 579DCDA0C45; Tue, 20 Oct 2015 11:05:06 +0200 (CEST) From: Alexander Stein To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala Cc: Alexander Stein , devicetree@vger.kernel.org Subject: [PATCH 1/1] Input: ads7846: Add description how to use internal reference (ADS7846) Date: Tue, 20 Oct 2015 11:05:00 +0200 Message-Id: <1445331900-4978-1-git-send-email-alexander.stein@systec-electronic.com> X-Mailer: git-send-email 2.4.10 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org By simply setting vref-mv to 0 the internal reference will be used. Document that! Signed-off-by: Alexander Stein --- Documentation/devicetree/bindings/input/ads7846.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/input/ads7846.txt b/Documentation/devicetree/bindings/input/ads7846.txt index df8b127..0414b4d 100644 --- a/Documentation/devicetree/bindings/input/ads7846.txt +++ b/Documentation/devicetree/bindings/input/ads7846.txt @@ -29,6 +29,8 @@ Optional properties: ti,vref-delay-usecs vref supply delay in usecs, 0 for external vref (u16). ti,vref-mv The VREF voltage, in millivolts (u16). + Set to 0 to use internal refernce + (ADS7846). ti,keep-vref-on set to keep vref on for differential measurements as well ti,swap-xy swap x and y axis