i2c: turn recovery error on init to debug

commit e409a6a3e0690efdef9b8a96197bc61ff117cfaf upstream.

In some configurations, recovery is optional. So, don't throw an error
when it is not used because e.g. pinctrl settings for recovery are not
provided. Reword the message and make it debug output.

Reported-by: Klaus Kudielka <klaus.kudielka@gmail.com>
Tested-by: Klaus Kudielka <klaus.kudielka@gmail.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 2dfe2ffcf882508b53c6ec81a98c76c9c4b57253..840f59650c7c4806640d39e8954e38614ddd1bcd 100644 (file)
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -254,13 +254,14 @@ EXPORT_SYMBOL_GPL(i2c_recover_bus);
 static void i2c_init_recovery(struct i2c_adapter *adap)
 {
        struct i2c_bus_recovery_info *bri = adap->bus_recovery_info;
-       char *err_str;
+       char *err_str, *err_level = KERN_ERR;
 
        if (!bri)
                return;
 
        if (!bri->recover_bus) {
-               err_str = "no recover_bus() found";
+               err_str = "no suitable method provided";
+               err_level = KERN_DEBUG;
                goto err;
        }
 
@@ -290,7 +291,7 @@ static void i2c_init_recovery(struct i2c_adapter *adap)
 
        return;
  err:
-       dev_err(&adap->dev, "Not using recovery: %s\n", err_str);
+       dev_printk(err_level, &adap->dev, "Not using recovery: %s\n", err_str);
        adap->bus_recovery_info = NULL;
 }