From patchwork Thu Nov 2 12:47:27 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 833340 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3ySPxw5lkqz9t2l for ; Thu, 2 Nov 2017 23:47:48 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754804AbdKBMrr (ORCPT ); Thu, 2 Nov 2017 08:47:47 -0400 Received: from sauhun.de ([88.99.104.3]:33850 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752966AbdKBMrl (ORCPT ); Thu, 2 Nov 2017 08:47:41 -0400 Received: from localhost (p54B33C39.dip0.t-ipconnect.de [84.179.60.57]) by pokefinder.org (Postfix) with ESMTPSA id 20F872C3229; Thu, 2 Nov 2017 13:47:40 +0100 (CET) From: Wolfram Sang To: linux-i2c@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda , Jacopo Mondi , Wolfram Sang Subject: [PATCH RFT 1/5] i2c: sh_mobile: remove redundant initialization Date: Thu, 2 Nov 2017 13:47:27 +0100 Message-Id: <20171102124731.10484-2-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20171102124731.10484-1-wsa+renesas@sang-engineering.com> References: <20171102124731.10484-1-wsa+renesas@sang-engineering.com> Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Following the documentation, we initialize the HW before each START in start_ch(). No need to do the same in activate_ch(). Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-sh_mobile.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c index 6f2aaeb7c4fa15..9d073e99c7e72d 100644 --- a/drivers/i2c/busses/i2c-sh_mobile.c +++ b/drivers/i2c/busses/i2c-sh_mobile.c @@ -303,16 +303,6 @@ static void activate_ch(struct sh_mobile_i2c_data *pd) /* Wake up device and enable clock */ pm_runtime_get_sync(pd->dev); clk_prepare_enable(pd->clk); - - /* Enable channel and configure rx ack */ - iic_set_clr(pd, ICCR, ICCR_ICE, 0); - - /* Mask all interrupts */ - iic_wr(pd, ICIC, 0); - - /* Set the clock */ - iic_wr(pd, ICCL, pd->iccl & 0xff); - iic_wr(pd, ICCH, pd->icch & 0xff); } static void deactivate_ch(struct sh_mobile_i2c_data *pd)