The i2c-rcar driver currently prints an error message if the master_xfer callback fails. However if the bus is being probed then lots of NAKs will be generated, causing the output of a number of errors printed. To solve this, disable the print if the error is not -EREMOTEIO. An example of running i2cdetect: 10: i2c-rcar e6530000.i2c: error -121 : 15 -- i2c-rcar e6530000.i2c: error -121 : 15 -- 12 i2c-rcar e6530000.i2c: error -121 : 15 -- i2c-rcar e6530000.i2c: error -121 : 15 -- i2c-rcar e6530000.i2c: error -121 : 15 -- i2c-rcar e6530000.i2c: error -121 : 15 -- i2c-rcar e6530000.i2c: error -121 : 15 -- i2c-rcar e6530000.i2c: error -121 : 15 Cc: Simon Horman <horms+renesas@xxxxxxxxxxxx> Cc: Wolfram Sang <wsa@xxxxxxxxxxxxx> Cc: linux-i2c@xxxxxxxxxxxxxxx Cc: linux-sh@xxxxxxxxxxxxxxx Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx> --- drivers/i2c/busses/i2c-rcar.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index 2c2fd7c..0d25104 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -623,7 +623,7 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap, pm_runtime_put(dev); - if (ret < 0) + if (ret < 0 && ret != -EREMOTEIO) dev_err(dev, "error %d : %x\n", ret, priv->flags); return ret; -- 1.8.5.2 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
