Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 770540f0 authored by Ben Dooks's avatar Ben Dooks Committed by Wolfram Sang
Browse files

i2c: rcar: do not print error if device nacks transfer 



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

Signed-off-by: default avatarBen Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 72fa818e

drivers/i2c/busses/i2c-rcar.c

+1 −1
Original line number Diff line number Diff line
@@ -622,7 +622,7 @@ 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;