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Subject[PATCH V2 01/20] spi: tegra114: fix PIO transfer
Date
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>
---
drivers/spi/spi-tegra114.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index 6bb40e46da91..ba1639310282 100644
--- 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;
}

--
2.7.4
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