clk: qcom: rcg2: Add support for display port clock ops

New display port clock ops supported for display port clocks.

Signed-off-by: Taniya Das <tdas@codeaurora.org>
Link: https://lkml.kernel.org/r/20190731182713.8123-2-tdas@codeaurora.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index 3b33ef1..d96395a 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -14,6 +14,7 @@
 	tristate "Support for Qualcomm's clock controllers"
 	depends on OF
 	depends on ARCH_QCOM || COMPILE_TEST
+	select RATIONAL
 	select REGMAP_MMIO
 	select RESET_CONTROLLER