spi: lpspi: fix the imbalance of runtime pm function call

Call the put function after probe successfully. Otherwise, the lpspi
module will keep active status until the first spi transfer called.

Disable runtime pm when probe fails. There is no need to active runtime
pm after probe failed.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Link: https://lore.kernel.org/r/20200714075251.12777-2-xiaoning.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index 38b4444..a4a42e8 100644 (file)
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -913,10 +913,15 @@ static int fsl_lpspi_probe(struct platform_device *pdev)
        if (ret < 0)
                dev_err(&pdev->dev, "dma setup error %d, use pio\n", ret);
 
+       pm_runtime_mark_last_busy(fsl_lpspi->dev);
+       pm_runtime_put_autosuspend(fsl_lpspi->dev);
+
        return 0;
 
 out_pm_get:
-       pm_runtime_put_noidle(fsl_lpspi->dev);
+       pm_runtime_dont_use_autosuspend(fsl_lpspi->dev);
+       pm_runtime_put_sync(fsl_lpspi->dev);
+       pm_runtime_disable(fsl_lpspi->dev);
 out_controller_put:
        spi_controller_put(controller);