i2c: i2c-mux-gpio: remove error messages for probe deferrals
authorIoan Nicu <ioan.nicu.ext@nokia.com>
Mon, 30 Mar 2015 13:03:38 +0000 (15:03 +0200)
committerWolfram Sang <wsa@the-dreams.de>
Fri, 3 Apr 2015 20:00:14 +0000 (22:00 +0200)
Probe deferral is not an error case. It happens only when
the necessary dependencies are not there yet.

The driver core is already printing a message when a driver
requests probe deferral, so this can be traced in the logs
without these error prints.

This patch removes the error messages for these deferral cases.

Signed-off-by: Ionut Nicu <ioan.nicu.ext@nokia.com>
Acked-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Acked-by: Peter Korsgaard <peter.korsgaard@barco.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
drivers/i2c/muxes/i2c-mux-gpio.c

index f5798eb4076b5cfd4eb8395ae7a7b460c7a25a1d..70db99264339ef5c7d6ffa0df9c5b1fdda9dfeaf 100644 (file)
@@ -76,10 +76,9 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux,
                return -ENODEV;
        }
        adapter = of_find_i2c_adapter_by_node(adapter_np);
-       if (!adapter) {
-               dev_err(&pdev->dev, "Cannot find parent bus\n");
+       if (!adapter)
                return -EPROBE_DEFER;
-       }
+
        mux->data.parent = i2c_adapter_id(adapter);
        put_device(&adapter->dev);
 
@@ -177,11 +176,8 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev)
        }
 
        parent = i2c_get_adapter(mux->data.parent);
-       if (!parent) {
-               dev_err(&pdev->dev, "Parent adapter (%d) not found\n",
-                       mux->data.parent);
+       if (!parent)
                return -EPROBE_DEFER;
-       }
 
        mux->parent = parent;
        mux->gpio_base = gpio_base;