i2c: xiic: Fix the clocking across bind unbind

The recommendation is that the set_active should be done
with pm runtime disabled.
Also fix the remove path for clocking.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index d719bf5..b17d30c 100644 (file)
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -798,10 +798,10 @@ static int xiic_i2c_probe(struct platform_device *pdev)
                return ret;
        }
        i2c->dev = &pdev->dev;
-       pm_runtime_enable(i2c->dev);
        pm_runtime_set_autosuspend_delay(i2c->dev, XIIC_PM_TIMEOUT);
        pm_runtime_use_autosuspend(i2c->dev);
        pm_runtime_set_active(i2c->dev);
+       pm_runtime_enable(i2c->dev);
        ret = devm_request_threaded_irq(&pdev->dev, irq, xiic_isr,
                                        xiic_process, IRQF_ONESHOT,
                                        pdev->name, i2c);
@@ -859,14 +859,16 @@ static int xiic_i2c_remove(struct platform_device *pdev)
        /* remove adapter & data */
        i2c_del_adapter(&i2c->adap);
 
-       ret = clk_prepare_enable(i2c->clk);
-       if (ret) {
-               dev_err(&pdev->dev, "Unable to enable clock.\n");
+       ret = pm_runtime_get_sync(i2c->dev);
+       if (ret < 0)
                return ret;
-       }
+
        xiic_deinit(i2c);
+       pm_runtime_put_sync(i2c->dev);
        clk_disable_unprepare(i2c->clk);
        pm_runtime_disable(&pdev->dev);
+       pm_runtime_set_suspended(&pdev->dev);
+       pm_runtime_dont_use_autosuspend(&pdev->dev);
 
        return 0;
 }