Move ::spi::MODE to ::SPI_MODE

We don't need a whole module for just one const

src/lib.rs

@@ -10,7 +10,7 @@ use core::iter::once;
 use display_interface::DataFormat::{U16BEIter, U8Iter};
 use display_interface::WriteOnlyDataCommand;
 
-pub mod spi;
+pub use embedded_hal::spi::MODE_0 as SPI_MODE;
 
 /// Trait representing the interface to the hardware.
 ///

src/spi.rs

@@ -1,7 +0,0 @@
-use embedded_hal::spi::{Mode, Phase, Polarity};
-
-/// SPI mode
-pub const MODE: Mode = Mode {
-    polarity: Polarity::IdleLow,
-    phase: Phase::CaptureOnFirstTransition,
-};