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Wed, 5 Jun 2024 21:23:22 +0000 (GMT) From: Eddie James To: linux-fsi@lists.ozlabs.org Subject: [PATCH v4 30/40] i2c: fsi: Define a function to check status error bits Date: Wed, 5 Jun 2024 16:23:02 -0500 Message-Id: <20240605212312.349188-31-eajames@linux.ibm.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20240605212312.349188-1-eajames@linux.ibm.com> References: <20240605212312.349188-1-eajames@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: uIQ3lo8aMA4Sveu7X7k3F3_3kcFfPMRd X-Proofpoint-GUID: uIQ3lo8aMA4Sveu7X7k3F3_3kcFfPMRd X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-06-05_02,2024-06-05_02,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 phishscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 clxscore=1015 impostorscore=0 malwarescore=0 spamscore=0 mlxlogscore=914 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2405010000 definitions=main-2406050160 X-BeenThere: linux-fsi@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: andi.shyti@kernel.org, linux-aspeed@lists.ozlabs.org, alistair@popple.id.au, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, ninad@linux.ibm.com, broonie@kernel.org, linux-i2c@vger.kernel.org, lakshmiy@us.ibm.com, andrew@codeconstruct.com.au Errors-To: linux-fsi-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "linux-fsi" This will be used more than once with interrupt support, so split the error bit checks into a function. Signed-off-by: Eddie James --- drivers/i2c/busses/i2c-fsi.c | 38 ++++++++++++++++++++---------------- 1 file changed, 21 insertions(+), 17 deletions(-) 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) {