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drivers: spi: gecko: eusart: Support LSB first and GPIO CS

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Propagate bit ordering and type of CS pin to HAL layer. Previously,
the driver assumed MSB first and EUSART hardware CS control.

Signed-off-by: Aksel Skauge Mellbye <aksel.mellbye@silabs.com>
This commit is contained in:
Aksel Skauge Mellbye 2024-12-18 16:20:34 +01:00 committed by Benjamin Cabé
parent 93cb20befd
commit 6b65d60d49
1 changed files with 2 additions and 5 deletions
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7
drivers/spi/spi_gecko_eusart.c
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@ -82,11 +82,6 @@ static int spi_eusart_config(const struct device *dev, const struct spi_config *
return -ENOTSUP;
}
if (config->operation & SPI_TRANSFER_LSB) {
LOG_ERR("LSB first not supported");
return -ENOTSUP;
}
if (config->operation & SPI_OP_MODE_SLAVE) {
LOG_ERR("Slave mode not supported");
return -ENOTSUP;
@ -133,6 +128,8 @@ static int spi_eusart_config(const struct device *dev, const struct spi_config *
eusartAdvancedSpiInit.csPolarity = eusartCsActiveLow;
}
eusartAdvancedSpiInit.msbFirst = !(config->operation & SPI_TRANSFER_LSB);
eusartAdvancedSpiInit.autoCsEnable = !spi_cs_is_gpio(config);
eusartInit.databits = eusartDataBits8;
eusartInit.advancedSettings = &eusartAdvancedSpiInit;