1 files changed, 1 insertions, 29 deletions

diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index dfaa1d79a78b..cbb60198a7f0 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -455,35 +455,10 @@ static void pch_spi_reset(struct spi_master *master)
 
 static int pch_spi_transfer(struct spi_device *pspi, struct spi_message *pmsg)
 {
-
-	struct spi_transfer *transfer;
 	struct pch_spi_data *data = spi_master_get_devdata(pspi->master);
 	int retval;
 	unsigned long flags;
 
-	spin_lock_irqsave(&data->lock, flags);
-	/* validate Tx/Rx buffers and Transfer length */
-	list_for_each_entry(transfer, &pmsg->transfers, transfer_list) {
-		if (!transfer->tx_buf && !transfer->rx_buf) {
-			dev_err(&pspi->dev,
-				"%s Tx and Rx buffer NULL\n", __func__);
-			retval = -EINVAL;
-			goto err_return_spinlock;
-		}
-
-		if (!transfer->len) {
-			dev_err(&pspi->dev, "%s Transfer length invalid\n",
-				__func__);
-			retval = -EINVAL;
-			goto err_return_spinlock;
-		}
-
-		dev_dbg(&pspi->dev,
-			"%s Tx/Rx buffer valid. Transfer length valid\n",
-			__func__);
-	}
-	spin_unlock_irqrestore(&data->lock, flags);
-
 	/* We won't process any messages if we have been asked to terminate */
 	if (data->status == STATUS_EXITING) {
 		dev_err(&pspi->dev, "%s status = STATUS_EXITING.\n", __func__);
@@ -518,10 +493,6 @@ static int pch_spi_transfer(struct spi_device *pspi, struct spi_message *pmsg)
 err_out:
 	dev_dbg(&pspi->dev, "%s RETURN=%d\n", __func__, retval);
 	return retval;
-err_return_spinlock:
-	dev_dbg(&pspi->dev, "%s RETURN=%d\n", __func__, retval);
-	spin_unlock_irqrestore(&data->lock, flags);
-	return retval;
 }
 
 static inline void pch_spi_select_chip(struct pch_spi_data *data,
@@ -1365,6 +1336,7 @@ static int pch_spi_pd_probe(struct platform_device *plat_dev)
 	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST;
 	master->bits_per_word_mask = SPI_BPW_MASK(8) | SPI_BPW_MASK(16);
 	master->max_speed_hz = PCH_MAX_BAUDRATE;
+	master->flags = SPI_CONTROLLER_MUST_RX | SPI_CONTROLLER_MUST_TX;
 
 	data->board_dat = board_dat;
 	data->plat_dev = plat_dev;