diff --git a/include/lib/pmf/pmf.h b/include/lib/pmf/pmf.h
index a3812fb..18ef0a5 100644
--- a/include/lib/pmf/pmf.h
+++ b/include/lib/pmf/pmf.h
@@ -9,17 +9,18 @@
 
 #include <cassert.h>
 #include <pmf_helpers.h>
+#include <utils_def.h>
 
 /*
  * Constants used for/by PMF services.
  */
-#define PMF_ARM_TIF_IMPL_ID	0x41
+#define PMF_ARM_TIF_IMPL_ID	U(0x41)
 #define PMF_TID_SHIFT		0
-#define PMF_TID_MASK		(0xFF << PMF_TID_SHIFT)
+#define PMF_TID_MASK		(U(0xFF) << PMF_TID_SHIFT)
 #define PMF_SVC_ID_SHIFT	10
-#define PMF_SVC_ID_MASK		(0x3F << PMF_SVC_ID_SHIFT)
+#define PMF_SVC_ID_MASK		(U(0x3F) << PMF_SVC_ID_SHIFT)
 #define PMF_IMPL_ID_SHIFT	24
-#define PMF_IMPL_ID_MASK	(0xFFU << PMF_IMPL_ID_SHIFT)
+#define PMF_IMPL_ID_MASK	(U(0xFF) << PMF_IMPL_ID_SHIFT)
 
 /*
  * Flags passed to PMF_REGISTER_SERVICE
@@ -37,16 +38,16 @@
 /*
  * Defines for PMF SMC function ids.
  */
-#define PMF_SMC_GET_TIMESTAMP_32	0x82000010u
-#define PMF_SMC_GET_TIMESTAMP_64	0xC2000010u
+#define PMF_SMC_GET_TIMESTAMP_32	U(0x82000010)
+#define PMF_SMC_GET_TIMESTAMP_64	U(0xC2000010)
 #define PMF_NUM_SMC_CALLS		2
 
 /*
  * The macros below are used to identify
  * PMF calls from the SMC function ID.
  */
-#define PMF_FID_MASK	0xffe0u
-#define PMF_FID_VALUE	0u
+#define PMF_FID_MASK	U(0xffe0)
+#define PMF_FID_VALUE	U(0)
 #define is_pmf_fid(_fid)	(((_fid) & PMF_FID_MASK) == PMF_FID_VALUE)
 
 /* Following are the supported PMF service IDs */
diff --git a/include/lib/pmf/pmf_helpers.h b/include/lib/pmf/pmf_helpers.h
index b9757de..c535b22 100644
--- a/include/lib/pmf/pmf_helpers.h
+++ b/include/lib/pmf/pmf_helpers.h
@@ -11,7 +11,6 @@
 #include <assert.h>
 #include <bl_common.h>
 #include <platform.h>
-#include <pmf.h>
 #include <stddef.h>
 #include <stdint.h>
 
diff --git a/lib/pmf/pmf_main.c b/lib/pmf/pmf_main.c
index 25513c1..fe7bb74 100644
--- a/lib/pmf/pmf_main.c
+++ b/lib/pmf/pmf_main.c
@@ -26,7 +26,7 @@
 IMPORT_SYM(uintptr_t, __PMF_SVC_DESCS_START__,		PMF_SVC_DESCS_START);
 IMPORT_SYM(uintptr_t, __PMF_SVC_DESCS_END__,		PMF_SVC_DESCS_END);
 IMPORT_SYM(uintptr_t, __PMF_PERCPU_TIMESTAMP_END__,	PMF_PERCPU_TIMESTAMP_END);
-IMPORT_SYM(intptr_t,  __PMF_TIMESTAMP_START__,		PMF_TIMESTAMP_ARRAY_START);
+IMPORT_SYM(uintptr_t,  __PMF_TIMESTAMP_START__,		PMF_TIMESTAMP_ARRAY_START);
 
 #define PMF_PERCPU_TIMESTAMP_SIZE	(PMF_PERCPU_TIMESTAMP_END - PMF_TIMESTAMP_ARRAY_START)
 
@@ -67,15 +67,15 @@
 	pmf_svc_descs = (pmf_svc_desc_t *) PMF_SVC_DESCS_START;
 	for (ii = 0; ii < pmf_svc_descs_num; ii++) {
 
-		assert(pmf_svc_descs[ii].get_ts);
+		assert(pmf_svc_descs[ii].get_ts != NULL);
 
 		/*
 		 * Call the initialization routine for this
 		 * PMF service, if it is defined.
 		 */
-		if (pmf_svc_descs[ii].init) {
+		if (pmf_svc_descs[ii].init != NULL) {
 			rc = pmf_svc_descs[ii].init();
-			if (rc) {
+			if (rc != 0) {
 				WARN("Could not initialize PMF"
 					"service %s - skipping \n",
 					pmf_svc_descs[ii].name);
@@ -125,7 +125,7 @@
 	if (pmf_num_services == 0)
 		return NULL;
 
-	assert(pmf_svc_descs);
+	assert(pmf_svc_descs != NULL);
 
 	do {
 		mid = (low + high) / 2;
@@ -158,7 +158,7 @@
 		unsigned long long *ts_value)
 {
 	pmf_svc_desc_t *svc_desc;
-	assert(ts_value);
+	assert(ts_value != NULL);
 
 	/* Search for registered service. */
 	svc_desc = get_service(tid);
@@ -247,7 +247,7 @@
 	unsigned long long *ts_addr = (unsigned long long *)calc_ts_addr(base_addr,
 				tid, cpuid);
 
-	if (flags & PMF_CACHE_MAINT)
+	if ((flags & PMF_CACHE_MAINT) != 0U)
 		inv_dcache_range((uintptr_t)ts_addr, sizeof(unsigned long long));
 
 	return *ts_addr;
diff --git a/lib/pmf/pmf_smc.c b/lib/pmf/pmf_smc.c
index e866118..4c5b14f 100644
--- a/lib/pmf/pmf_smc.c
+++ b/lib/pmf/pmf_smc.c
@@ -37,7 +37,8 @@
 			 * x0 --> error code.
 			 * x1 - x2 --> time-stamp value.
 			 */
-			rc = pmf_get_timestamp_smc(x1, x2, x3, &ts_value);
+			rc = pmf_get_timestamp_smc((unsigned int)x1, x2,
+					(unsigned int)x3, &ts_value);
 			SMC_RET3(handle, rc, (uint32_t)ts_value,
 					(uint32_t)(ts_value >> 32));
 		}
@@ -49,7 +50,8 @@
 			 * x0 --> error code.
 			 * x1 --> time-stamp value.
 			 */
-			rc = pmf_get_timestamp_smc(x1, x2, x3, &ts_value);
+			rc = pmf_get_timestamp_smc((unsigned int)x1, x2,
+					(unsigned int)x3, &ts_value);
 			SMC_RET2(handle, rc, ts_value);
 		}
 	}