spi/pl022: Convert to core runtime PM

Signed-off-by: Mark Brown <broonie@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

drivers/spi/spi-pl022.c

@@ -1555,18 +1555,6 @@ static int pl022_transfer_one_message(struct spi_master *master,
 	return 0;
 }
 
-static int pl022_prepare_transfer_hardware(struct spi_master *master)
-{
-	struct pl022 *pl022 = spi_master_get_devdata(master);
-
-	/*
-	 * Just make sure we have all we need to run the transfer by syncing
-	 * with the runtime PM framework.
-	 */
-	pm_runtime_get_sync(&pl022->adev->dev);
-	return 0;
-}
-
 static int pl022_unprepare_transfer_hardware(struct spi_master *master)
 {
 	struct pl022 *pl022 = spi_master_get_devdata(master);
@@ -1575,13 +1563,6 @@ static int pl022_unprepare_transfer_hardware(struct spi_master *master)
 	writew((readw(SSP_CR1(pl022->virtbase)) &
 		(~SSP_CR1_MASK_SSE)), SSP_CR1(pl022->virtbase));
 
-	if (pl022->master_info->autosuspend_delay > 0) {
-		pm_runtime_mark_last_busy(&pl022->adev->dev);
-		pm_runtime_put_autosuspend(&pl022->adev->dev);
-	} else {
-		pm_runtime_put(&pl022->adev->dev);
-	}
-
 	return 0;
 }
 
@@ -2139,7 +2120,7 @@ static int pl022_probe(struct amba_device *adev, const struct amba_id *id)
 	master->num_chipselect = num_cs;
 	master->cleanup = pl022_cleanup;
 	master->setup = pl022_setup;
-	master->prepare_transfer_hardware = pl022_prepare_transfer_hardware;
+	master->auto_runtime_pm = true;
 	master->transfer_one_message = pl022_transfer_one_message;
 	master->unprepare_transfer_hardware = pl022_unprepare_transfer_hardware;
 	master->rt = platform_info->rt;