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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>
hifive-unleashed-5.2
Sowjanya Komatineni 2019-04-15 14:30:26 -07:00 committed by Mark Brown
parent 29f2133717
commit cc1b69fc5f
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GPG Key ID: 24D68B725D5487D0
1 changed files with 3 additions and 2 deletions
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5
drivers/spi/spi-tegra114.c
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@ -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;
}