From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9605C43603 for ; Mon, 9 Dec 2019 11:11:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C6BC1207FD for ; Mon, 9 Dec 2019 11:11:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727835AbfLILLU (ORCPT ); Mon, 9 Dec 2019 06:11:20 -0500 Received: from emcscan.emc.com.tw ([192.72.220.5]:64841 "EHLO emcscan.emc.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727825AbfLILLT (ORCPT ); Mon, 9 Dec 2019 06:11:19 -0500 X-IronPort-AV: E=Sophos;i="5.56,253,1539619200"; d="scan'208";a="33204372" Received: from unknown (HELO webmail.emc.com.tw) ([192.168.10.1]) by emcscan.emc.com.tw with ESMTP; 09 Dec 2019 19:11:16 +0800 Received: from 192.168.10.23 by webmail.emc.com.tw with MailAudit ESMTP Server V5.0(71493:0:AUTH_RELAY) (envelope-from ); Mon, 09 Dec 2019 19:11:17 +0800 (CST) Received: from 42.73.254.157 by webmail.emc.com.tw with Mail2000 ESMTPA Server V7.00(101178:0:AUTH_LOGIN) (envelope-from ); Mon, 09 Dec 2019 19:11:17 +0800 (CST) From: Dave Wang To: Linux-input@vger.kernel.org, Linux-kernel@vger.kernel.org, Dmitry.torokhov@gmail.com Cc: phoenix@emc.com.tw, josh.chen@emc.com.tw, jingle.wu@emc.com.tw, kai.heng.feng@canonical.com, Dave Wang Subject: [PATCH 1/3] Input: elan_i2c - Do no operation for elan_smbus_set_mode function Date: Mon, 9 Dec 2019 06:11:07 -0500 Message-Id: <20191209111107.32239-1-dave.wang@emc.com.tw> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some touchpads might get error while triggerring the set_mode command in SMBus interface. Do no operation for elan_smbus_set_mode function. Signed-off-by: Dave Wang --- drivers/input/mouse/elan_i2c_smbus.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/input/mouse/elan_i2c_smbus.c b/drivers/input/mouse/elan_i2c_smbus.c index 8c3185d54c73..bcb9ec4a7a6b 100644 --- a/drivers/input/mouse/elan_i2c_smbus.c +++ b/drivers/input/mouse/elan_i2c_smbus.c @@ -84,10 +84,7 @@ static int elan_smbus_initialize(struct i2c_client *client) static int elan_smbus_set_mode(struct i2c_client *client, u8 mode) { - u8 cmd[4] = { 0x00, 0x07, 0x00, mode }; - - return i2c_smbus_write_block_data(client, ETP_SMBUS_IAP_CMD, - sizeof(cmd), cmd); + return 0; /* A no-op */ } static int elan_smbus_sleep_control(struct i2c_client *client, bool sleep) -- 2.17.1