diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_cache_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_cache_test.c
index f4be05aa3a3d..855dca7334da 100644
--- a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_cache_test.c
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_cache_test.c
@@ -31,7 +31,7 @@ static int group_constraint_cache(void)
 	/* Check for platform support for the test */
 	SKIP_IF(platform_check_for_tests());
 
-	/* Init the events for the group contraint check for l1 cache select bits */
+	/* Init the events for the group constraint check for l1 cache select bits */
 	event_init(&leader, EventCode_1);
 	FAIL_IF(event_open(&leader));
 
@@ -42,7 +42,7 @@ static int group_constraint_cache(void)
 
 	event_close(&event);
 
-	/* Init the event for the group contraint l1 cache select test */
+	/* Init the event for the group constraint l1 cache select test */
 	event_init(&event, EventCode_3);
 
 	/* Expected to succeed as sibling event request same l1 cache select bits as leader */
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_l2l3_sel_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_l2l3_sel_test.c
index e3c7a0c071e2..9de991d7a767 100644
--- a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_l2l3_sel_test.c
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_l2l3_sel_test.c
@@ -30,12 +30,12 @@ static int group_constraint_l2l3_sel(void)
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is only aplicable on ISA v3.1
+	 * This test is only applicable on ISA v3.1
 	 */
 	SKIP_IF(platform_check_for_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
 
-	/* Init the events for the group contraint check for l2l3_sel bits */
+	/* Init the events for the group constraint check for l2l3_sel bits */
 	event_init(&leader, EventCode_1);
 	FAIL_IF(event_open(&leader));
 
@@ -46,7 +46,7 @@ static int group_constraint_l2l3_sel(void)
 
 	event_close(&event);
 
-	/* Init the event for the group contraint l2l3_sel test */
+	/* Init the event for the group constraint l2l3_sel test */
 	event_init(&event, EventCode_3);
 
 	/* Expected to succeed as sibling event request same l2l3_sel bits as leader */
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c
index 9233175787cc..e354129cd7fb 100644
--- a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c
@@ -26,12 +26,12 @@ static int group_constraint_radix_scope_qual(void)
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is aplicable on ISA v3.1 only.
+	 * This test is applicable on ISA v3.1 only.
 	 */
 	SKIP_IF(platform_check_for_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
 
-	/* Init the events for the group contraint check for radix_scope_qual bits */
+	/* Init the events for the group constraint check for radix_scope_qual bits */
 	event_init(&leader, EventCode_1);
 	FAIL_IF(event_open(&leader));
 
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_cmp_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_cmp_test.c
index 4b69e7214c0b..433fa9982c8c 100644
--- a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_cmp_test.c
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_cmp_test.c
@@ -37,7 +37,7 @@ static int group_constraint_thresh_cmp(void)
 	SKIP_IF(platform_check_for_tests());
 
 	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1)) {
-		/* Init the events for the group contraint check for thresh_cmp bits */
+		/* Init the events for the group constraint check for thresh_cmp bits */
 		event_init(&leader, p10_EventCode_1);
 
 		/* Add the thresh_cmp value for leader in config1 */
@@ -54,7 +54,7 @@ static int group_constraint_thresh_cmp(void)
 
 		event_close(&event);
 
-		/* Init the event for the group contraint thresh compare test */
+		/* Init the event for the group constraint thresh compare test */
 		event_init(&event, p10_EventCode_2);
 
 		/* Add the same thresh_cmp value for leader and sibling event in config1 */
@@ -66,7 +66,7 @@ static int group_constraint_thresh_cmp(void)
 		event_close(&leader);
 		event_close(&event);
 	} else {
-		/* Init the events for the group contraint check for thresh_cmp bits */
+		/* Init the events for the group constraint check for thresh_cmp bits */
 		event_init(&leader, p9_EventCode_1);
 		FAIL_IF(event_open(&leader));
 
@@ -77,7 +77,7 @@ static int group_constraint_thresh_cmp(void)
 
 		event_close(&event);
 
-		/* Init the event for the group contraint thresh compare test */
+		/* Init the event for the group constraint thresh compare test */
 		event_init(&event, p9_EventCode_3);
 
 		/* Expected to succeed as sibling and leader event request same thresh_cmp bits */
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_ctl_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_ctl_test.c
index e0852ebc1671..7e7206eefcfd 100644
--- a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_ctl_test.c
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_ctl_test.c
@@ -35,7 +35,7 @@ static int group_constraint_thresh_ctl(void)
 	/* Check for platform support for the test */
 	SKIP_IF(platform_check_for_tests());
 
-	/* Init the events for the group contraint thresh control test */
+	/* Init the events for the group constraint thresh control test */
 	event_init(&leader, EventCode_1);
 	FAIL_IF(event_open(&leader));
 
@@ -46,7 +46,7 @@ static int group_constraint_thresh_ctl(void)
 
 	event_close(&event);
 
-	/* Init the event for the group contraint thresh control test */
+	/* Init the event for the group constraint thresh control test */
 	event_init(&event, EventCode_3);
 
 	 /* Expected to succeed as sibling and leader event request same thresh_ctl bits */
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_sel_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_sel_test.c
index 50a8cd843ce7..1b1336c1ddb1 100644
--- a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_sel_test.c
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_sel_test.c
@@ -34,7 +34,7 @@ static int group_constraint_thresh_sel(void)
 	/* Check for platform support for the test */
 	SKIP_IF(platform_check_for_tests());
 
-	/* Init the events for the group contraint thresh select test */
+	/* Init the events for the group constraint thresh select test */
 	event_init(&leader, EventCode_1);
 	FAIL_IF(event_open(&leader));
 
@@ -45,7 +45,7 @@ static int group_constraint_thresh_sel(void)
 
 	event_close(&event);
 
-	/* Init the event for the group contraint thresh select test */
+	/* Init the event for the group constraint thresh select test */
 	event_init(&event, EventCode_3);
 
 	 /* Expected to succeed as sibling and leader event request same thresh_sel bits */
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_unit_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_unit_test.c
index a2c18923dcec..86684331f2bc 100644
--- a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_unit_test.c
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_unit_test.c
@@ -21,7 +21,7 @@
  * Testcase for group constraint check of unit and pmc bits which is
  * used to program corresponding unit and pmc field in Monitor Mode
  * Control Register 1 (MMCR1)
- * One of the event in the group should use PMC 4 incase units field
+ * One of the event in the group should use PMC 4 in case units field
  * value is within 6 to 9 otherwise event_open for the group will fail.
  */
 static int group_constraint_unit(void)
@@ -37,21 +37,21 @@ static int group_constraint_unit(void)
 	SKIP_IF(platform_check_for_tests());
 	SKIP_IF(have_hwcap2(PPC_FEATURE2_ARCH_3_1));
 
-	/* Init the events for the group contraint check for unit bits */
+	/* Init the events for the group constraint check for unit bits */
 	e = &events[0];
 	event_init(e, EventCode_1);
 
 	 /* Expected to fail as PMC 4 is not used with unit field value 6 to 9 */
 	FAIL_IF(!event_open(&events[0]));
 
-	/* Init the events for the group contraint check for unit bits */
+	/* Init the events for the group constraint check for unit bits */
 	e = &events[1];
 	event_init(e, EventCode_2);
 
 	/* Expected to pass as PMC 4 is used with unit field value 6 to 9 */
 	FAIL_IF(event_open(&events[1]));
 
-	/* Init the event for the group contraint unit test */
+	/* Init the event for the group constraint unit test */
 	e = &events[2];
 	event_init(e, EventCode_3);
 
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
index 8a538b6182a1..7ec35566790a 100644
--- a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
@@ -466,7 +466,7 @@ int get_thresh_cmp_val(struct event event)
 		return value;
 
 	/*
-	 * Incase of P10, thresh_cmp value is not part of raw event code
+	 * In case of P10, thresh_cmp value is not part of raw event code
 	 * and provided via attr.config1 parameter. To program threshold in MMCRA,
 	 * take a 18 bit number N and shift right 2 places and increment
 	 * the exponent E by 1 until the upper 10 bits of N are zero.
@@ -498,7 +498,7 @@ int get_thresh_cmp_val(struct event event)
  * by comparing base_platform value from auxv and real
  * PVR value.
  * auxv_base_platform() func gives information of "base platform"
- * corresponding to PVR value. Incase, if the distro doesn't
+ * corresponding to PVR value. In case, if the distro doesn't
  * support platform PVR (missing cputable support), base platform
  * in auxv will have a default value other than the real PVR's.
  * In this case, ISAv3 PMU (generic compat PMU) will be registered
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_cond_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_cond_test.c
index 809de8d58b3b..696f4285af3e 100644
--- a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_cond_test.c
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_cond_test.c
@@ -29,7 +29,7 @@ static int mmcra_bhrb_cond_test(void)
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is only aplicable on ISA v3.1
+	 * This test is only applicable on ISA v3.1
 	 */
 	SKIP_IF(check_pvr_for_sampling_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_no_branch_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_no_branch_test.c
index fa0dc15f9123..6ed293d18a34 100644
--- a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_no_branch_test.c
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_no_branch_test.c
@@ -26,7 +26,7 @@ static int mmcra_bhrb_disable_no_branch_test(void)
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is only aplicable on ISA v3.1
+	 * This test is only applicable on ISA v3.1
 	 */
 	SKIP_IF(check_pvr_for_sampling_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_test.c
index bc3161ab003d..858e37705275 100644
--- a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_test.c
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_test.c
@@ -26,7 +26,7 @@ static int mmcra_bhrb_disable_test(void)
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is only aplicable on ISA v3.1
+	 * This test is only applicable on ISA v3.1
 	 */
 	SKIP_IF(check_pvr_for_sampling_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_ind_call_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_ind_call_test.c
index fd6c9f12212c..6ae3edfedd51 100644
--- a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_ind_call_test.c
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_ind_call_test.c
@@ -29,7 +29,7 @@ static int mmcra_bhrb_ind_call_test(void)
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is only aplicable on ISA v3.1
+	 * This test is only applicable on ISA v3.1
 	 */
 	SKIP_IF(check_pvr_for_sampling_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
