sdm: Add support to get/set DSI clk.

CRs-Fixed: 2314107
Change-Id: I213edcaa61b33731b920b500a170e5a265909e47
diff --git a/libqdutils/display_config.h b/libqdutils/display_config.h
index 8373c90..c0952b0 100644
--- a/libqdutils/display_config.h
+++ b/libqdutils/display_config.h
@@ -30,6 +30,8 @@
 #ifndef _DISPLAY_CONFIG_H
 #define _DISPLAY_CONFIG_H
 
+#include <vector>
+
 #include <gralloc_priv.h>
 #include <qdMetaData.h>
 #include <hardware/hwcomposer.h>
@@ -160,6 +162,15 @@
 // Retrieves the current panel brightness value
 int getPanelBrightness();
 
+// Sets the specified bit clk value.
+int setDsiClk(int dpy, uint64_t bitClk);
+
+// Retrieves the current bit clk value.
+uint64_t getDsiClk(int dpy);
+
+// Get supported bit clk values.
+int getSupportedBitClk(int dpy, std::vector<uint64_t>& bit_rates);
+
 }; //namespace