From patchwork Fri Jul 13 21:09:15 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 10524167 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B43116028E for ; Fri, 13 Jul 2018 21:09:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A39B629E13 for ; Fri, 13 Jul 2018 21:09:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 97CC129E1F; Fri, 13 Jul 2018 21:09:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 53B4629E13 for ; Fri, 13 Jul 2018 21:09:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733077AbeGMV0G (ORCPT ); Fri, 13 Jul 2018 17:26:06 -0400 Received: from www.zeus03.de ([194.117.254.33]:48464 "EHLO mail.zeus03.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732623AbeGMV0G (ORCPT ); Fri, 13 Jul 2018 17:26:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=sang-engineering.com; h= from:to:cc:subject:date:message-id:in-reply-to:references; s=k1; bh=Pxg0D6gPydncZpakJGoJP7XH88zvwDWI6lnNmfm0LJk=; b=EKs4jTy4wN68 xjThzOQOWbmb8HAlK0sg787sTIFzoN9VNbHVKmjS5pqD3Z7h3pKG3fEuRnEnPEj1 MS8zgxinRkuVAbv/iqwsECl4p3VLEHpRnD89eKjBbTodYqs5Vt+JB8B8XR0VX6RQ Z3AlPOnQKcv3p9+uMhKMyyRSMF5yqBY= Received: (qmail 3472 invoked from network); 13 Jul 2018 23:09:44 +0200 Received: by mail.zeus03.de with ESMTPSA (ECDHE-RSA-AES256-GCM-SHA384 encrypted, authenticated); 13 Jul 2018 23:09:44 +0200 X-UD-Smtp-Session: l3s3148p1@dNoe5udweuUgAwDPW8bBAAId4P/+oMhl From: Wolfram Sang To: linux-i2c@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, kernel@pengutronix.de, Wolfram Sang , Jarkko Nikula , Andy Shevchenko , Mika Westerberg , linux-kernel@vger.kernel.org Subject: [PATCH/RFT 3/6] i2c: designware: set SDA as output for recovery Date: Fri, 13 Jul 2018 23:09:15 +0200 Message-Id: <20180713210920.3648-4-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180713210920.3648-1-wsa+renesas@sang-engineering.com> References: <20180713210920.3648-1-wsa+renesas@sang-engineering.com> Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This allows for sending STOP when generating pulses which is much more robust because it will bring clients into a default state. Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-designware-master.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index a546db80f53e..25981efc844e 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -674,7 +674,7 @@ static int i2c_dw_init_recovery_info(struct dw_i2c_dev *dev) } rinfo->scl_gpiod = gpio; - gpio = devm_gpiod_get_optional(dev->dev, "sda", GPIOD_IN); + gpio = devm_gpiod_get_optional(dev->dev, "sda", GPIOD_OUT_HIGH_OPEN_DRAIN); if (IS_ERR(gpio)) return PTR_ERR(gpio); rinfo->sda_gpiod = gpio;