Apply missed const& SPI optimization (#17734)

Followup to eebb68cd7f
2020-04-27 03:13:47 -07:00
parent c4d57462dc
commit 8f7f7f7c45
2 changed files with 2 additions and 2 deletions
--- a/Marlin/src/HAL/LPC1768/include/SPI.h
+++ b/Marlin/src/HAL/LPC1768/include/SPI.h
@ -31,7 +31,7 @@
 class SPISettings {
  public:
    SPISettings(uint32_t speed, int, int) : spi_speed(speed) {};
-    uint32_t spiRate() { return spi_speed; }
+    uint32_t spiRate() const { return spi_speed; }
  private:
    uint32_t spi_speed;
 };