spi: spi-cadence: Add missing kernel doc for clk_rate in cdns_spi
Add the missing kernel documentation to silence the build warning.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230523090124.3132-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/spi-cadence.c b/drivers/spi/spi-cadence.c
index ac85d55..d1d583d 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
