spi: mediatek: remove redundant clock in prepare_hardware/unprepare_hardware

clock in prepare_hardware/unprepare_hardware is redundant
with pm_runtime, so remove them.

Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 0 insertions, 17 deletions

diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 62baaad244af..546d70cc1e21 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -186,13 +186,6 @@ static int mtk_spi_prepare_hardware(struct spi_master *master)
         struct spi_transfer *trans;
         struct mtk_spi *mdata = spi_master_get_devdata(master);
         struct spi_message *msg = master->cur_msg;
-        int ret;
-
-        ret = clk_prepare_enable(mdata->spi_clk);
-        if (ret < 0) {
-                dev_err(&master->dev, "failed to enable clock (%d)\n", ret);
-                return ret;
-        }
 
         trans = list_first_entry(&msg->transfers, struct spi_transfer,
                                  transfer_list);
@@ -201,15 +194,6 @@ static int mtk_spi_prepare_hardware(struct spi_master *master)
                 mtk_spi_reset(mdata);
         }
 
-        return ret;
-}
-
-static int mtk_spi_unprepare_hardware(struct spi_master *master)
-{
-        struct mtk_spi *mdata = spi_master_get_devdata(master);
-
-        clk_disable_unprepare(mdata->spi_clk);
-
         return 0;
 }
 
@@ -541,7 +525,6 @@ static int mtk_spi_probe(struct platform_device *pdev)
 
         master->set_cs = mtk_spi_set_cs;
         master->prepare_transfer_hardware = mtk_spi_prepare_hardware;
-        master->unprepare_transfer_hardware = mtk_spi_unprepare_hardware;
         master->prepare_message = mtk_spi_prepare_message;
         master->transfer_one = mtk_spi_transfer_one;
         master->can_dma = mtk_spi_can_dma;