From patchwork Wed Apr 9 19:25:08 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 3957231 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id AF38DBFF02 for ; Wed, 9 Apr 2014 19:25:12 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E95CA206B1 for ; Wed, 9 Apr 2014 19:25:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2A23C20166 for ; Wed, 9 Apr 2014 19:25:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964932AbaDITZF (ORCPT ); Wed, 9 Apr 2014 15:25:05 -0400 Received: from mga09.intel.com ([134.134.136.24]:65379 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934328AbaDITY6 (ORCPT ); Wed, 9 Apr 2014 15:24:58 -0400 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP; 09 Apr 2014 12:20:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,828,1389772800"; d="scan'208";a="517874905" Received: from paasikivi.fi.intel.com ([10.237.72.42]) by orsmga002.jf.intel.com with ESMTP; 09 Apr 2014 12:24:57 -0700 Received: from nauris.fi.intel.com (nauris.localdomain [192.168.240.2]) by paasikivi.fi.intel.com (Postfix) with ESMTP id 7591B20EB1 for ; Wed, 9 Apr 2014 22:24:55 +0300 (EEST) Received: by nauris.fi.intel.com (Postfix, from userid 1000) id 650F820109; Wed, 9 Apr 2014 22:25:17 +0300 (EEST) From: Sakari Ailus To: linux-media@vger.kernel.org Subject: [PATCH 16/17] smiapp: Ignore write accesses to quirk registers Date: Wed, 9 Apr 2014 22:25:08 +0300 Message-Id: <1397071509-2071-17-git-send-email-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1397071509-2071-1-git-send-email-sakari.ailus@linux.intel.com> References: <1397071509-2071-1-git-send-email-sakari.ailus@linux.intel.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-7.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 Signed-off-by: Sakari Ailus --- drivers/media/i2c/smiapp/smiapp-regs.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/media/i2c/smiapp/smiapp-regs.c b/drivers/media/i2c/smiapp/smiapp-regs.c index 4fac32c..e88a59a 100644 --- a/drivers/media/i2c/smiapp/smiapp-regs.c +++ b/drivers/media/i2c/smiapp/smiapp-regs.c @@ -221,6 +221,13 @@ int smiapp_write(struct smiapp_sensor *sensor, u32 reg, u32 val) len != SMIA_REG_32BIT) || flags) return -EINVAL; + if (smiapp_quirk_reg(sensor, reg, &val)) { + dev_dbg(&client->dev, + "ignoring write access to quirk reg 0x%4.4x\n", + (u16)reg); + return 0; + } + msg.addr = client->addr; msg.flags = 0; /* Write */ msg.len = 2 + len;