From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758027AbdKPTyK (ORCPT ); Thu, 16 Nov 2017 14:54:10 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:57194 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753976AbdKPTyC (ORCPT ); Thu, 16 Nov 2017 14:54:02 -0500 From: Eddie James To: linux-kernel@vger.kernel.org Cc: linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, wsa@the-dreams.de, robh+dt@kernel.org, joel@jms.id.au, eajames@linux.vnet.ibm.com, "Edward A. James" Subject: [PATCH v6 0/7] drivers/i2c: Add FSI-attached I2C master algorithm Date: Thu, 16 Nov 2017 13:53:45 -0600 X-Mailer: git-send-email 1.8.3.1 X-TM-AS-GCONF: 00 x-cbid: 17111619-0008-0000-0000-000008E09C50 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008076; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000240; SDB=6.00946833; UDB=6.00477975; IPR=6.00727126; BA=6.00005695; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00018049; XFM=3.00000015; UTC=2017-11-16 19:54:00 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17111619-0009-0000-0000-000044C97359 Message-Id: <1510862032-12394-1-git-send-email-eajames@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-11-16_06:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=4 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=4 clxscore=1011 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1711160265 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Edward A. James" This series adds an algorithm for an I2C master physically located on an FSI slave device. The I2C master has multiple ports, each of which may be connected to an I2C slave. Access to the I2C master registers is achieved over FSI bus. Due to the multi-port nature of the I2C master, the driver instantiates a new I2C adapter for each port connected to a slave. The connected ports should be defined in the device tree under the I2C master device. Changes since v5 - Fix reset functionality and do a reset after every transfer failure Edward A. James (7): dt-bindings: i2c: Add FSI-attached I2C master dt binding documentation drivers/i2c: Add FSI-attached I2C master algorithm drivers/i2c: Add port structure to FSI algorithm drivers/i2c: Add abort and hardware reset procedures drivers/i2c: Add transfer implementation for FSI algorithm drivers/i2c: Add I2C master locking to FSI algorithm drivers/i2c: Add bus recovery for FSI algorithm Documentation/devicetree/bindings/i2c/i2c-fsi.txt | 40 ++ drivers/i2c/busses/Kconfig | 11 + drivers/i2c/busses/Makefile | 1 + drivers/i2c/busses/i2c-fsi.c | 793 ++++++++++++++++++++++ 4 files changed, 845 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-fsi.txt create mode 100644 drivers/i2c/busses/i2c-fsi.c -- 1.8.3.1