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drivers: spi: Fix Ambiq apollo4p SPI mode configuration.

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The commit fixes the SPI mode improper configuration.
Otherwise the MODE_3 and MODE_0 cases would never be entered as expected.

Signed-off-by: Aaron Ye <aye@ambiq.com>
This commit is contained in:
Aaron Ye 2023-09-06 23:05:45 +08:00 committed by Fabio Baltieri
parent 06e8e9f5f5
commit 4e7d1b0f74
1 changed files with 6 additions and 4 deletions
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10
drivers/spi/spi_ambiq.c
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@ -76,12 +76,14 @@ static int spi_config(const struct device *dev, const struct spi_config *config)
return -ENOTSUP;
}
if (config->operation & (SPI_MODE_CPOL | SPI_MODE_CPHA)) {
if (config->operation & (SPI_MODE_CPOL && SPI_MODE_CPHA)) {
if (config->operation & SPI_MODE_CPOL) {
if (config->operation & SPI_MODE_CPHA) {
data->iom_cfg.eSpiMode = AM_HAL_IOM_SPI_MODE_3;
} else if (config->operation & SPI_MODE_CPOL) {
} else {
data->iom_cfg.eSpiMode = AM_HAL_IOM_SPI_MODE_2;
} else if (config->operation & SPI_MODE_CPHA) {
}
} else {
if (config->operation & SPI_MODE_CPHA) {
data->iom_cfg.eSpiMode = AM_HAL_IOM_SPI_MODE_1;
} else {
data->iom_cfg.eSpiMode = AM_HAL_IOM_SPI_MODE_0;