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spi: Fix the Pcs setup for NXP's K6xF processors

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Without this change, when DTS SPI device node has node ID = <0>, the
value of 0 is assigned during SPI configuration and written to
whichPcs member in master_config structure.
This value wrongly overrides the default value read from NXP's DSPI
HAL (kDSPI_Pcs0 = 1U << 0).

Such situation occurs on ip_k66f board, where the DSA device -
controlled via SPI has the node ID equal to 0 (i.e. reg = <0>).

Signed-off-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Lukasz Majewski 2021-11-12 22:54:19 +01:00 • committed by Maureen Helm
commit aa464a9d67
1 changed files with 2 additions and 2 deletions
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4
drivers/spi/spi_mcux_dspi.c
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@ -582,7 +582,7 @@ static int spi_mcux_configure(const struct device *dev,
DSPI_MasterGetDefaultConfig(&master_config);
master_config.whichPcs = spi_cfg->slave;
master_config.whichPcs = 1U << spi_cfg->slave;
master_config.whichCtar = config->which_ctar;
master_config.pcsActiveHighOrLow =
(spi_cfg->operation & SPI_CS_ACTIVE_HIGH) ?
@ -646,7 +646,7 @@ static int spi_mcux_configure(const struct device *dev,
/* record frame_size setting for DMA */
data->frame_size = word_size;
/* keep the pcs settings */
data->which_pcs = spi_cfg->slave;
data->which_pcs = 1U << spi_cfg->slave;
#ifdef CONFIG_MCUX_DSPI_EDMA_SHUFFLE_DATA
mcux_init_inner_buffer_with_cmd(dev, 0);
#endif