From patchwork Wed Aug 24 07:58:59 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vignesh Raghavendra X-Patchwork-Id: 9297031 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0999F608A7 for ; Wed, 24 Aug 2016 08:00:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F3CD028334 for ; Wed, 24 Aug 2016 08:00:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E7ED728E66; Wed, 24 Aug 2016 08:00:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A091F28631 for ; Wed, 24 Aug 2016 08:00:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932286AbcHXIA0 (ORCPT ); Wed, 24 Aug 2016 04:00:26 -0400 Received: from bear.ext.ti.com ([198.47.19.11]:36828 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753962AbcHXIAH (ORCPT ); Wed, 24 Aug 2016 04:00:07 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id u7O7xN14002667; Wed, 24 Aug 2016 02:59:23 -0500 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id u7O7xMAw027687; Wed, 24 Aug 2016 02:59:22 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.3.294.0; Wed, 24 Aug 2016 02:59:21 -0500 Received: from uda0132425.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id u7O7x46R006659; Wed, 24 Aug 2016 02:59:17 -0500 From: Vignesh R To: Dmitry Torokhov CC: Rob Herring , Mark Rutland , Tony Lindgren , Russell King , Arnd Bergmann , Daniel Hung-yu Wu , Grant Grundler , S Twiss , Vignesh R , Moritz Fischer , Jorge Ramirez-Ortiz , John Stultz , "Andrew F . Davis" , , , , , Subject: [PATCH v3 2/2] ARM: dts: am335x-icev2: Add nodes for gpio-decoder Date: Wed, 24 Aug 2016 13:28:59 +0530 Message-ID: <20160824075859.30979-3-vigneshr@ti.com> X-Mailer: git-send-email 2.9.2 In-Reply-To: <20160824075859.30979-1-vigneshr@ti.com> References: <20160824075859.30979-1-vigneshr@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP AM335x ICE board has a rotary-switch connected to PCA9536 I2C GPIO expander. The position of the rotary-switch is reflected by status of GPIO lines. Add gpio-decoder node to read these GPIO line status via gpio-decoder driver and report it as an input event to the system. Signed-off-by: Vignesh R --- v3: s/decoder,max-value/decoder-max-value arch/arm/boot/dts/am335x-icev2.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/boot/dts/am335x-icev2.dts b/arch/arm/boot/dts/am335x-icev2.dts index bc0190e4f10f..426022ee85c7 100644 --- a/arch/arm/boot/dts/am335x-icev2.dts +++ b/arch/arm/boot/dts/am335x-icev2.dts @@ -139,6 +139,15 @@ default-state = "off"; }; }; + gpio-decoder { + compatible = "gpio-decoder"; + gpios = <&pca9536 3 GPIO_ACTIVE_HIGH>, + <&pca9536 2 GPIO_ACTIVE_HIGH>, + <&pca9536 1 GPIO_ACTIVE_HIGH>, + <&pca9536 0 GPIO_ACTIVE_HIGH>; + linux,axis = <0>; /* ABS_X */ + decoder-max-value = <9>; + }; }; &am33xx_pinmux {