| From | Sowjanya Komatineni <> | Subject | [PATCH V1 01/26] spi: tegra114: fix PIO transfer | Date | Tue, 26 Mar 2019 22:56:22 -0700 |
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Fixes: Use PIO bit in SPI_COMMAND1 register for PIO mode.
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 a76acedd7e2f..5a21bc808bb6 100644 --- a/drivers/spi/spi-tegra114.c +++ b/drivers/spi/spi-tegra114.c @@ -570,8 +570,9 @@ 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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