Remove STM32 variant (and submodule libopencm3)

Make spi_wait() and spi_write() allways inline.

1 files changed, 2 insertions, 2 deletions

diff --git a/include/spi.h b/include/spi.h
index 1052569..4638476 100644
--- a/include/spi.h
+++ b/include/spi.h
@@ -32,11 +32,11 @@
 
 #define SPI_OFF()				do { SPCR = 0; } while(0)
 
-static inline void spi_wait() {
+static inline __attribute__((always_inline)) void spi_wait() {
 	loop_until_bit_is_set(SPSR,SPIF);
 }
 
-static inline void spi_write(uint8_t a) {
+static inline __attribute__((always_inline)) void spi_write(uint8_t a) {
 	SPDR = a;
 }