diff --git a/plat/qti/common/src/spmi_arb.c b/plat/qti/common/src/spmi_arb.c
index 81cc577..16e85a6 100644
--- a/plat/qti/common/src/spmi_arb.c
+++ b/plat/qti/common/src/spmi_arb.c
@@ -10,17 +10,17 @@
 
 #include <spmi_arb.h>
 
-#define REG_APID_MAP(apid)	(0x0C440900 + 4 * i)
+#define REG_APID_MAP(apid)	(0x0C440900U + 4U * i)
 #define NUM_APID		0x80
 
-#define PPID_MASK		(0xfff << 8)
+#define PPID_MASK		(0xfffU << 8)
 
-#define REG_ARB_CMD(apid)	(0x0C600000 + 0x10000 * apid)
+#define REG_ARB_CMD(apid)	(0x0C600000U + 0x10000U * apid)
 /* These are opcodes specific to this SPMI arbitrator, *not* SPMI commands. */
 #define OPC_EXT_WRITEL		0
 #define OPC_EXT_READL		1
 
-#define REG_ARB_STATUS(apid)	(0x0C600008 + 0x10000 * apid)
+#define REG_ARB_STATUS(apid)	(0x0C600008U + 0x10000U * apid)
 #define ARB_STATUS_DONE		BIT(0)
 #define ARB_STATUS_FAILURE	BIT(1)
 #define ARB_STATUS_DENIED	BIT(2)
@@ -29,8 +29,8 @@
 /* Fake status to report driver errors. */
 #define ARB_FAKE_STATUS_TIMEOUT	BIT(8)
 
-#define REG_ARB_RDATA0(apid)	(0x0C600018 + 0x10000 * apid)
-#define REG_ARB_WDATA0(apid)	(0x0C600010 + 0x10000 * apid)
+#define REG_ARB_RDATA0(apid)	(0x0C600018U + 0x10000U * apid)
+#define REG_ARB_WDATA0(apid)	(0x0C600010U + 0x10000U * apid)
 
 static int addr_to_apid(uint32_t addr)
 {