diff options
| author | Wolfram Sang <wsa@kernel.org> | 2023-02-20 17:40:59 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2023-03-03 23:00:26 +0300 |
| commit | 4b3dfb0ed6336dea4a763ce9fa30a42763eb3800 (patch) | |
| tree | d39a7440fb17f1f035e434f5dcdea048700ec839 | |
| parent | 1d092308ce223bb1403475737b8fb847e9e8704c (diff) | |
| download | linux-4b3dfb0ed6336dea4a763ce9fa30a42763eb3800.tar.xz | |
i2c: gxp: return proper error on address NACK
According to Documentation/i2c/fault-codes.rst, NACK after sending an
address should be -ENXIO.
Signed-off-by: Wolfram Sang <wsa@kernel.org>
| -rw-r--r-- | drivers/i2c/busses/i2c-gxp.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-gxp.c b/drivers/i2c/busses/i2c-gxp.c index 352dedf6292f..fda7809e72ba 100644 --- a/drivers/i2c/busses/i2c-gxp.c +++ b/drivers/i2c/busses/i2c-gxp.c @@ -129,8 +129,10 @@ static int gxp_i2c_master_xfer(struct i2c_adapter *adapter, if (time_left == 0) return -ETIMEDOUT; - if (drvdata->state == GXP_I2C_ADDR_NACK || - drvdata->state == GXP_I2C_DATA_NACK) + if (drvdata->state == GXP_I2C_ADDR_NACK) + return -ENXIO; + + if (drvdata->state == GXP_I2C_DATA_NACK) return -EIO; return ret; |