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 41dd0a08a625c9071618b7cb656fb5a6e9cfa13c..39be53b6f9838d7631caa4b5509c4a98ed63d20b 100644 (file)
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -262,13 +262,14 @@ 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;
        }
 
@@ -298,7 +299,7 @@ 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;
 }