diff options
Diffstat (limited to 'chip/stm32/spi.c')
| -rw-r--r-- | chip/stm32/spi.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/chip/stm32/spi.c b/chip/stm32/spi.c index 21857837c2..3dbbbc4fa9 100644 --- a/chip/stm32/spi.c +++ b/chip/stm32/spi.c @@ -308,7 +308,7 @@ static void tx_status(uint8_t byte) static void setup_for_transaction(void) { stm32_spi_regs_t *spi __attribute__((unused)) = STM32_SPI1_REGS; - volatile uint8_t dummy __attribute__((unused)); + volatile uint8_t unused __attribute__((unused)); /* clear this as soon as possible */ setup_transaction_later = 0; @@ -325,15 +325,15 @@ static void setup_for_transaction(void) dma_disable(STM32_DMAC_SPI1_TX); /* - * Read dummy bytes in case there are some pending; this prevents the + * Read unused bytes in case there are some pending; this prevents the * receive DMA from getting that byte right when we start it. */ - dummy = SPI_RXDR; + unused = SPI_RXDR; #if defined(CHIP_FAMILY_STM32F0) || defined(CHIP_FAMILY_STM32L4) /* 4 Bytes makes sure the RX FIFO on the F0 is empty as well. */ - dummy = spi->dr; - dummy = spi->dr; - dummy = spi->dr; + unused = spi->dr; + unused = spi->dr; + unused = spi->dr; #endif /* Start DMA */ @@ -523,7 +523,7 @@ void spi_event(enum gpio_signal signal) /* * Check how big the packet should be. We can't just wait to * see how much data the host sends, because it will keep - * sending dummy data until we respond. + * sending extra data until we respond. */ pkt_size = host_request_expected_size(r); if (pkt_size == 0 || pkt_size > sizeof(in_msg)) |