Merge remote-tracking branch 'spi/for-next'

[karo-tx-linux.git] / drivers / spi / spi.c

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 8d05accf706c00fe3e0a156c8d3bde86ce47fcde..927998aa5e71e711177a3adbf7cfe94ed020a85b 100644 (file)
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -245,15 +245,27 @@ EXPORT_SYMBOL_GPL(spi_bus_type);
 static int spi_drv_probe(struct device *dev)
 {
        const struct spi_driver         *sdrv = to_spi_driver(dev->driver);
+       struct spi_device               *spi = to_spi_device(dev);
+       int ret;
+
+       acpi_dev_pm_attach(&spi->dev, true);
+       ret = sdrv->probe(spi);
+       if (ret)
+               acpi_dev_pm_detach(&spi->dev, true);
 
-       return sdrv->probe(to_spi_device(dev));
+       return ret;
 }
 
 static int spi_drv_remove(struct device *dev)
 {
        const struct spi_driver         *sdrv = to_spi_driver(dev->driver);
+       struct spi_device               *spi = to_spi_device(dev);
+       int ret;
+
+       ret = sdrv->remove(spi);
+       acpi_dev_pm_detach(&spi->dev, true);
 
-       return sdrv->remove(to_spi_device(dev));
+       return ret;
 }
 
 static void spi_drv_shutdown(struct device *dev)
@@ -1145,8 +1157,10 @@ static acpi_status acpi_spi_add_device(acpi_handle handle, u32 level,
                return AE_OK;
        }
 
+       adev->power.flags.ignore_parent = true;
        strlcpy(spi->modalias, acpi_device_hid(adev), sizeof(spi->modalias));
        if (spi_add_device(spi)) {
+               adev->power.flags.ignore_parent = false;
                dev_err(&master->dev, "failed to add SPI device %s from ACPI\n",
                        dev_name(&adev->dev));
                spi_dev_put(spi);