i2c: designware-platdrv: enable RuntimePM before registering to the core

The core may register clients attached to this master which may use
funtionality from the master. So, RuntimePM must be enabled before, otherwise
this will fail.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: stable@kernel.org

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 3dd2de31a2f8d380f71ff61c562a53d8638f9eb5..73d58415bbc1008be24575407cce61be9a4acc9b 100644 (file)
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -253,12 +253,6 @@ static int dw_i2c_probe(struct platform_device *pdev)
        adap->dev.parent = &pdev->dev;
        adap->dev.of_node = pdev->dev.of_node;
 
-       r = i2c_add_numbered_adapter(adap);
-       if (r) {
-               dev_err(&pdev->dev, "failure adding adapter\n");
-               return r;
-       }
-
        if (dev->pm_runtime_disabled) {
                pm_runtime_forbid(&pdev->dev);
        } else {
@@ -268,6 +262,13 @@ static int dw_i2c_probe(struct platform_device *pdev)
                pm_runtime_enable(&pdev->dev);
        }
 
+       r = i2c_add_numbered_adapter(adap);
+       if (r) {
+               dev_err(&pdev->dev, "failure adding adapter\n");
+               pm_runtime_disable(&pdev->dev);
+               return r;
+       }
+
        return 0;
 }