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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 64AF4C28CBC for ; Wed, 6 May 2020 09:40:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4272020838 for ; Wed, 6 May 2020 09:40:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="MbX4I921" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729063AbgEFJkJ (ORCPT ); Wed, 6 May 2020 05:40:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1729120AbgEFJkI (ORCPT ); Wed, 6 May 2020 05:40:08 -0400 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:3201:214:fdff:fe10:1be6]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DD1F4C061A10 for ; Wed, 6 May 2020 02:40:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:Content-Type:MIME-Version: Message-ID:Subject:To:From:Date:Reply-To:Cc:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=I+qs3qhPQHX4nodFlkoxDAYDvM1CjkFl9lpV2Lzdjvc=; b=MbX4I921oty+JENr+buItVP9S 1vixZ1Ygmz5VEhFBIQqkf/gvws+F/aq8H/rJqW9BcNB0McaCODTuam0I7Htpz2HCybZgU6TMvBzuo /o8UP4Qq5dSD+cuaXAfbp8BDlZsrieVyNunZPm8xw994apiupofAjLJP3Y+Dr5Xww0W6QNoVgIP27 hczsbRytRbHu17NCrv0UixZMqqHunRM1+VbNzs5zjnsD3GrEt7CPqzwiHh5plwXD0HhUj2PdjItXY HuDKuyPluZKXHnZzyvhPV1L+gDsaejrn7y+Bh0zHRFYCKmKG+5yIm2JvOtWHhSTIRWppf4rIAYsoR gibbt8PbQ==; Received: from shell.armlinux.org.uk ([2002:4e20:1eda:1:5054:ff:fe00:4ec]:54414) by pandora.armlinux.org.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jWGX4-0007pS-7E for linux-i2c@vger.kernel.org; Wed, 06 May 2020 10:40:02 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1jWGX3-00084g-Gh; Wed, 06 May 2020 10:40:01 +0100 Date: Wed, 6 May 2020 10:40:01 +0100 From: Russell King - ARM Linux admin To: linux-i2c@vger.kernel.org Subject: [PATCH 0/2] Add bus recovery to i2c-pxa Message-ID: <20200506094001.GP1551@shell.armlinux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Hi, This series adds bus recovery to i2c-pxa, using GPIOs to manually recover the bus. This has been proven to work on Armada 3720 with various SFP modules that appear to misbehave. I am only expecting patch 1 to be applied to the i2c tree; patch 2 should be applied through normal routes via the arm-soc tree, but are included in this series since it is part of the same change. arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts | 22 ++- drivers/i2c/busses/i2c-pxa.c | 176 ++++++++++++++++++++--- 2 files changed, 179 insertions(+), 19 deletions(-) -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 10.2Mbps down 587kbps up