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drivers: spi: Set dummy data in mcux drivers

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Sets the "dummy data" value to send when the transmit buffer is null.
Fixes the spi_null_tx_buf test in tests/drivers/spi/spi_loopback on the
lpcxpresso54114 board.

Tested on frdm_k64f, mimxrt1050_evk, and lpcxpresso54114_m4 boards.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
This commit is contained in:
Maureen Helm 2020-04-15 16:31:04 -05:00 • committed by Kumar Gala
commit 1b6d4dd223
3 changed files with 6 additions and 0 deletions
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2
drivers/spi/spi_mcux_dspi.c
View file

@ -185,6 +185,8 @@ static int spi_mcux_configure(struct device *dev,
DSPI_MasterTransferCreateHandle(base, &data->handle,
spi_mcux_master_transfer_callback, dev);
DSPI_SetDummyData(base, 0);
data->ctx.config = spi_cfg;
spi_context_cs_configure(&data->ctx);

2
drivers/spi/spi_mcux_flexcomm.c
View file

@ -180,6 +180,8 @@ static int spi_mcux_configure(struct device *dev,
SPI_MasterTransferCreateHandle(base, &data->handle,
spi_mcux_master_transfer_callback, dev);
SPI_SetDummyData(base, 0);
data->ctx.config = spi_cfg;
spi_context_cs_configure(&data->ctx);

2
drivers/spi/spi_mcux_lpspi.c
View file

@ -186,6 +186,8 @@ static int spi_mcux_configure(struct device *dev,
LPSPI_MasterTransferCreateHandle(base, &data->handle,
spi_mcux_master_transfer_callback, dev);
LPSPI_SetDummyData(base, 0);
data->ctx.config = spi_cfg;
spi_context_cs_configure(&data->ctx);