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drivers: spi: stm32: remove extraneous unaligned macros

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Byte access is always naturally aligned; there's no need to use
UNALIGNED_GET or UNALIGNED_PUT. Those would only be needed when
supporting 16-bit data frames.

Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
This commit is contained in:
Marti Bolivar 2017-07-17 11:17:58 -04:00 • committed by Anas Nashif
commit d5ee0cfbf9
1 changed files with 2 additions and 5 deletions
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7
drivers/spi/spi_ll_stm32.c
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@ -222,8 +222,7 @@ static int spi_stm32_configure(struct spi_config *config)
static void spi_stm32_transmit(SPI_TypeDef *spi, struct spi_stm32_data *data)
{
if (spi_context_tx_on(&data->ctx)) {
LL_SPI_TransmitData8(spi, UNALIGNED_GET((u8_t *)
(data->ctx.tx_buf)));
LL_SPI_TransmitData8(spi, *data->ctx.tx_buf);
} else {
/* Transmit NOP byte */
LL_SPI_TransmitData8(spi, 0);
@ -235,9 +234,7 @@ static void spi_stm32_transmit(SPI_TypeDef *spi, struct spi_stm32_data *data)
static void spi_stm32_receive(SPI_TypeDef *spi, struct spi_stm32_data *data)
{
if (spi_context_rx_on(&data->ctx)) {
u8_t byte = LL_SPI_ReceiveData8(spi);
UNALIGNED_PUT(byte, (u8_t *)data->ctx.rx_buf);
*data->ctx.rx_buf = LL_SPI_ReceiveData8(spi);
} else {
LL_SPI_ReceiveData8(spi);
}