From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751561AbcHLEy2 (ORCPT ); Fri, 12 Aug 2016 00:54:28 -0400 Received: from bear.ext.ti.com ([198.47.19.11]:55049 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750989AbcHLEyZ (ORCPT ); Fri, 12 Aug 2016 00:54:25 -0400 From: Vignesh R To: Dmitry Torokhov CC: Rob Herring , Mark Rutland , Tony Lindgren , Russell King , Arnd Bergmann , John Stultz , S Twiss , Jorge Ramirez-Ortiz , Moritz Fischer , Daniel Hung-yu Wu , Vignesh R , Grant Grundler , , , , , Subject: [PATCH 2/2] ARM: dts: am335x-icev2: Add nodes for gpio-decoder Date: Fri, 12 Aug 2016 10:22:29 +0530 Message-ID: <20160812045229.29241-3-vigneshr@ti.com> X-Mailer: git-send-email 2.9.2 In-Reply-To: <20160812045229.29241-1-vigneshr@ti.com> References: <20160812045229.29241-1-vigneshr@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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 7d8b8fefdf08..f2de594343f2 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-decoder0 { + 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 */ + gpio-decoder,max-value = <9>; + }; }; &am33xx_pinmux { -- 2.9.2