2021-04-12 09:46:01

by Greg KH

[permalink] [raw]
Subject: [PATCH 5.11 088/210] i2c: turn recovery error on init to debug

From: Wolfram Sang <[email protected]>

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 <[email protected]>
Tested-by: Klaus Kudielka <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/i2c/i2c-core-base.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -378,7 +378,7 @@ static int i2c_gpio_init_recovery(struct
static int 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 0;
@@ -387,7 +387,8 @@ static int i2c_init_recovery(struct i2c_
return -EPROBE_DEFER;

if (!bri->recover_bus) {
- err_str = "no recover_bus() found";
+ err_str = "no suitable method provided";
+ err_level = KERN_DEBUG;
goto err;
}

@@ -414,7 +415,7 @@ static int i2c_init_recovery(struct i2c_

return 0;
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;

return -EINVAL;