From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161741AbWKVFPd (ORCPT ); Wed, 22 Nov 2006 00:15:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161764AbWKVFPd (ORCPT ); Wed, 22 Nov 2006 00:15:33 -0500 Received: from ug-out-1314.google.com ([66.249.92.168]:63366 "EHLO ug-out-1314.google.com") by vger.kernel.org with ESMTP id S1161741AbWKVFPc (ORCPT ); Wed, 22 Nov 2006 00:15:32 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Wpa/Swy2sQH5j0O2J0cCv8YbEyucdPPaai2M8o7xkwpcUL4V1/ujHn0DMvjq5V7/QDz1xx9r9oCb13AUDSL5ZCNmzOMpy2PFHoLAES7WCrrCqpEbZ5m0M/Dp/30FAK3Bc3+WYUHNLiBoeBb/47qz7AT2M/IFzffuzF5D4yl34Zg= Message-ID: Date: Wed, 22 Nov 2006 11:15:31 +0600 From: "Dilan Weerakkody" To: linux-kernel@vger.kernel.org Subject: MX21 keypad driver interrupt issue In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org hi all, i writing keypad driver on *mx21 ads board for * kernel 2.6.14 i got a problem on interrupt handling , the isr routine for kpp 1.when interrupt occur first i disable interrupt by clear KRIE and KDIE bit 2.next i scan key pad matrix 3.clear KPDK bit (but when i read this bit i can see that KPDK flag bit is still not cleared) 4.then i enable KDIE bit again all above 1,2,3,4 written within interrupt handler (is this a problem?); my problem is KPP interrupt handler run over and over again after once i touch a key and release it please help thanks dilan