From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754681AbcHWWTD (ORCPT ); Tue, 23 Aug 2016 18:19:03 -0400 Received: from mga11.intel.com ([192.55.52.93]:54479 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753085AbcHWWTC (ORCPT ); Tue, 23 Aug 2016 18:19:02 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.28,567,1464678000"; d="scan'208";a="160020729" From: Lucas De Marchi To: linux-i2c@vger.kernel.org Cc: Christian Ruppert , mika.westerberg@linux.intel.com, jarkko.nikula@linux.intel.com, linux-kernel@vger.kernel.org, Wolfram Sang Subject: [PATCH v4 0/4] i2c: designware: improve performance for transfers Date: Tue, 23 Aug 2016 19:18:52 -0300 Message-Id: <1471990736-30190-1-git-send-email-lucas.demarchi@intel.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Diff from v3: - Fix over 80chars in one place - Move check for adapter being able to dynamically update TAR to be done on probe time rather than init as requested by Jarkko For the previous version, Christian had added: Tested-by: Christian Ruppert on TB101 with Linux-4.7 And Jarkko added his Acked-by: Jarkko Nikula on patches 1 and 3 (now 4). There's a new patch #2 as a preparatory work to move the check mentioned above to i2c_dw_probe(). v3 of "i2c: designware: do not disable adapter after transfer". Differences are: - Now there's a first patch that does not depend on IC_TAR being dynamically enabled/disabled: it just doesn't wait for the state change when not needed. - We added a patch that allows detecting if HW supports the dynamic TAR updates - In the last patch the bits were changed as suggested by Jarkko. - This is tested on BayTrail and CherryTrail, both of them returning true for "dynamically update TAR" José Roberto de Souza (1): i2c: designware: wait for disable/enable only if necessary Lucas De Marchi (3): i2c: designware: add common functions for locking i2c: designware: detect when dynamic tar update is possible i2c: designware: do not disable adapter after transfer drivers/i2c/busses/i2c-designware-core.c | 162 +++++++++++++++++++++---------- drivers/i2c/busses/i2c-designware-core.h | 1 + 2 files changed, 111 insertions(+), 52 deletions(-) -- 2.7.4