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[V1,01/26] spi: tegra114: fix PIO transfer

Message ID 1553666207-11414-1-git-send-email-skomatineni@nvidia.com (mailing list archive)
State Superseded
Headers show
Series [V1,01/26] spi: tegra114: fix PIO transfer | expand

Commit Message

Sowjanya Komatineni March 27, 2019, 5:56 a.m. UTC 
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(-)
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Patch

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;
 }