From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eddie James Date: Thu, 16 May 2024 13:18:57 -0500 Subject: [PATCH v3 30/40] i2c: fsi: Define a function to check status error bits In-Reply-To: <20240516181907.3468796-1-eajames@linux.ibm.com> References: <20240516181907.3468796-1-eajames@linux.ibm.com> Message-ID: <20240516181907.3468796-31-eajames@linux.ibm.com> List-Id: To: linux-aspeed@lists.ozlabs.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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) { -- 2.39.3