From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752146AbcELBLO (ORCPT ); Wed, 11 May 2016 21:11:14 -0400 Received: from lucky1.263xmail.com ([211.157.147.130]:59888 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751450AbcELBLM (ORCPT ); Wed, 11 May 2016 21:11:12 -0400 X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 X-RL-SENDER: david.wu@rock-chips.com X-FST-TO: linux-kernel@vger.kernel.org X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: david.wu@rock-chips.com X-UNIQUE-TAG: <68ecc643b22715e8e607b9c42ef760d0> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 Subject: Re: [PATCH v8 3/8] i2c: rk3x: Remove redundant rk3x_i2c_clean_ipd() To: Heiko Stuebner References: <1462908252-27016-1-git-send-email-david.wu@rock-chips.com> <1462908252-27016-4-git-send-email-david.wu@rock-chips.com> <2477327.hJjg0APDhg@phil> Cc: wsa@the-dreams.de, robh+dt@kernel.org, dianders@chromium.org, andy.shevchenko@gmail.com, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, briannorris@google.com, davidriley@google.com, huangtao@rock-chips.com, hl@rock-chips.com, xjq@rock-chips.com, zyw@rock-chips.com, cf@rock-chips.com, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org From: "David.Wu" Message-ID: <5733D841.1020905@rock-chips.com> Date: Thu, 12 May 2016 09:11:29 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.7.2 MIME-Version: 1.0 In-Reply-To: <2477327.hJjg0APDhg@phil> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Heiko 在 2016/5/12 2:26, Heiko Stuebner 写道: > Am Mittwoch, 11. Mai 2016, 03:24:07 schrieb David Wu: >> Call rk3x_i2c_setup() before rk3x_i2c_start() > > That beginning of the sentence could use a tiny improvement, like > > ---- > rk3x_i2c_setup() gets called directly before rk3x_i2c_start() > ---- > Okay, i will add it in next version, Thanks. > to make it obvious what happens in the code. > > But a nice small improvement > Reviewed-by: Heiko Stuebner > >> and the last thing in setup was to clean the IPD, >> so no reason to do it at the beginning of start. >> >> Signed-off-by: David Wu >> Reviewed-by: Douglas Anderson >> --- >> Change in v8: >> - none >> >> drivers/i2c/busses/i2c-rk3x.c | 1 - >> 1 file changed, 1 deletion(-) >> >> diff --git a/drivers/i2c/busses/i2c-rk3x.c b/drivers/i2c/busses/i2c-rk3x.c >> index 1e2677a..9eeb4e5 100644 >> --- a/drivers/i2c/busses/i2c-rk3x.c >> +++ b/drivers/i2c/busses/i2c-rk3x.c >> @@ -174,7 +174,6 @@ static void rk3x_i2c_start(struct rk3x_i2c *i2c) >> { >> u32 val; >> >> - rk3x_i2c_clean_ipd(i2c); >> i2c_writel(i2c, REG_INT_START, REG_IEN); >> >> /* enable adapter with correct mode, send START condition */ > > > >