Align ChibiOS spi_master behaviour with AVR (#11404)

* Align ChibiOS spi_master behaviour with AVR

* Rollback `spi_transmit()` and `spi_receive()` to preserve DMA

1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/chibios/spi_master.c b/drivers/chibios/spi_master.c
index 5aa60742e..8341b59a5 100644
--- a/drivers/chibios/spi_master.c
+++ b/drivers/chibios/spi_master.c
@@ -115,11 +115,17 @@ bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor) {
     return true;
 }
 
-spi_status_t spi_write(uint8_t data) { return spi_transmit(&data, 1); }
+spi_status_t spi_write(uint8_t data) {
+    uint8_t rxData;
+    spiExchange(&SPI_DRIVER, 1, &data, &rxData);
+
+    return rxData;
+}
 
 spi_status_t spi_read(void) {
     uint8_t data = 0;
-    spi_receive(&data, 1);
+    spiReceive(&SPI_DRIVER, 1, &data);
+
     return data;
 }