spi: tegra114: fix PIO transfer

This patch fixes PIO mode transfer to use PIO bit in SPI_COMMAND1 register.
Current driver uses DMA_EN instead of PIO bit.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index b57f101..21e4fda 100644 (file)
--- a/drivers/spi/spi-tegra114.c
+++ b/drivers/spi/spi-tegra114.c
@@ -641,8 +641,9 @@ static int tegra_spi_start_cpu_based_transfer(
 
        tspi->is_curr_dma_xfer = false;
 
-       val |= SPI_DMA_EN;
-       tegra_spi_writel(tspi, val, SPI_DMA_CTL);
+       val = tspi->command1_reg;
+       val |= SPI_PIO;
+       tegra_spi_writel(tspi, val, SPI_COMMAND1);
        return 0;
 }