leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

spi: tegra114: fix PIO transfer

Browse Source 
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>
This commit is contained in:
Sowjanya Komatineni 2019-04-15 14:30:26 -07:00 committed by Mark Brown
parent 29f2133717
commit cc1b69fc5f
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/spi/spi-tegra114.c
View File

@ -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;
}