diff --git a/drivers/spi/spi-cadence.c b/drivers/spi/spi-cadence.c
index ac85d5562212..d1d583d82e28 100644
--- a/drivers/spi/spi-cadence.c
+++ b/drivers/spi/spi-cadence.c
@@ -101,6 +101,7 @@
  * @regs:		Virtual address of the SPI controller registers
  * @ref_clk:		Pointer to the peripheral clock
  * @pclk:		Pointer to the APB clock
+ * @clk_rate:		Reference clock frequency, taken from @ref_clk
  * @speed_hz:		Current SPI bus clock speed in Hz
  * @txbuf:		Pointer	to the TX buffer
  * @rxbuf:		Pointer to the RX buffer