Message ID | 20240516181907.3468796-31-eajames@linux.ibm.com |
---|---|
State | Superseded |
Headers | show
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Thu, 16 May 2024 18:19:19 +0000 Received: from smtpav05.dal12v.mail.ibm.com (smtpav05.dal12v.mail.ibm.com [10.241.53.104]) by smtprelay07.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 44GIJGs547186520 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 16 May 2024 18:19:18 GMT Received: from smtpav05.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8341C58070; Thu, 16 May 2024 18:19:16 +0000 (GMT) Received: from smtpav05.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 44C2758077; Thu, 16 May 2024 18:19:16 +0000 (GMT) Received: from slate16.aus.stglabs.ibm.com (unknown [9.61.107.19]) by smtpav05.dal12v.mail.ibm.com (Postfix) with ESMTP; Thu, 16 May 2024 18:19:16 +0000 (GMT) From: Eddie James <eajames@linux.ibm.com> To: linux-fsi@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-spi@vger.kernel.org, broonie@kernel.org, andi.shyti@kernel.org, joel@jms.id.au, alistair@popple.id.au, jk@ozlabs.org, andrew@codeconstruct.com.au, linux-aspeed@lists.ozlabs.org, eajames@linux.ibm.com Subject: [PATCH v3 30/40] i2c: fsi: Define a function to check status error bits Date: Thu, 16 May 2024 13:18:57 -0500 Message-Id: <20240516181907.3468796-31-eajames@linux.ibm.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20240516181907.3468796-1-eajames@linux.ibm.com> References: <20240516181907.3468796-1-eajames@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: <linux-i2c.vger.kernel.org> List-Subscribe: <mailto:linux-i2c+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-i2c+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: l4qsawXBH5DZE4kPrPiIerJHHxTa_PJ2 X-Proofpoint-GUID: l4qsawXBH5DZE4kPrPiIerJHHxTa_PJ2 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-05-16_07,2024-05-15_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 lowpriorityscore=0 mlxlogscore=915 mlxscore=0 impostorscore=0 spamscore=0 phishscore=0 suspectscore=0 clxscore=1015 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2405010000 definitions=main-2405160132 |
Series |
fsi: Add interrupt support
|
expand
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diff --git a/drivers/i2c/busses/i2c-fsi.c b/drivers/i2c/busses/i2c-fsi.c index f3b97bf88d0f9..022f1287aa0e3 100644 --- a/drivers/i2c/busses/i2c-fsi.c +++ b/drivers/i2c/busses/i2c-fsi.c @@ -507,6 +507,26 @@ static int fsi_i2c_abort(struct fsi_i2c_port *port, u32 status) return -ETIMEDOUT; } +static int fsi_i2c_error_status_to_rc(u32 status) +{ + if (status & I2C_STAT_INV_CMD) + return -EINVAL; + + if (status & (I2C_STAT_PARITY | I2C_STAT_BE_OVERRUN | I2C_STAT_BE_ACCESS)) + return -EPROTO; + + if (status & I2C_STAT_NACK) + return -ENXIO; + + if (status & I2C_STAT_LOST_ARB) + return -EAGAIN; + + if (status & I2C_STAT_STOP_ERR) + return -EBADMSG; + + return -EIO; +} + static int fsi_i2c_handle_status(struct fsi_i2c_port *port, struct i2c_msg *msg, u32 status) { @@ -518,23 +538,7 @@ static int fsi_i2c_handle_status(struct fsi_i2c_port *port, if (rc) return rc; - if (status & I2C_STAT_INV_CMD) - return -EINVAL; - - if (status & (I2C_STAT_PARITY | I2C_STAT_BE_OVERRUN | - I2C_STAT_BE_ACCESS)) - return -EPROTO; - - if (status & I2C_STAT_NACK) - return -ENXIO; - - if (status & I2C_STAT_LOST_ARB) - return -EAGAIN; - - if (status & I2C_STAT_STOP_ERR) - return -EBADMSG; - - return -EIO; + return fsi_i2c_error_status_to_rc(status); } if (status & I2C_STAT_DAT_REQ) {
This will be used more than once with interrupt support, so split the error bit checks into a function. Signed-off-by: Eddie James <eajames@linux.ibm.com> --- drivers/i2c/busses/i2c-fsi.c | 38 ++++++++++++++++++++---------------- 1 file changed, 21 insertions(+), 17 deletions(-)