spi/tegra20-slink: Use core runtime PM

Signed-off-by: Mark Brown <broonie@linaro.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>

1 files changed, 1 insertions, 25 deletions

diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index b2fb115df027..c70353672a23 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -824,20 +824,6 @@ static int tegra_slink_setup(struct spi_device *spi)
         return 0;
 }
 
-static int tegra_slink_prepare_transfer(struct spi_master *spi)
-{
-        struct tegra_slink_data *tspi = spi_master_get_devdata(spi);
-        int ret;
-
-        ret = pm_runtime_get_sync(tspi->dev);
-        if (ret < 0) {
-                dev_err(tspi->dev, "runtime PM get failed: %d\n", ret);
-                return ret;
-        }
-
-        return ret;
-}
-
 static int tegra_slink_transfer_one_message(struct spi_master *master,
                         struct spi_message *msg)
 {
@@ -892,15 +878,6 @@ exit:
         return ret;
 }
 
-static int tegra_slink_unprepare_transfer(struct spi_master *spi)
-{
-        struct tegra_slink_data *tspi = spi_master_get_devdata(spi);
-
-        pm_runtime_put(tspi->dev);
-
-        return 0;
-}
-
 static irqreturn_t handle_cpu_based_xfer(struct tegra_slink_data *tspi)
 {
         struct spi_transfer *t = tspi->curr_xfer;
@@ -1101,9 +1078,8 @@ static int tegra_slink_probe(struct platform_device *pdev)
         /* the spi->mode bits understood by this driver: */
         master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
         master->setup = tegra_slink_setup;
-        master->prepare_transfer_hardware = tegra_slink_prepare_transfer;
         master->transfer_one_message = tegra_slink_transfer_one_message;
-        master->unprepare_transfer_hardware = tegra_slink_unprepare_transfer;
+        master->auto_runtime_pm = true;
         master->num_chipselect = MAX_CHIP_SELECT;
         master->bus_num = -1;