drivers/amdgpu: Remove redundant casts on kzalloc() calls

---
 drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c         |  2 +-
 drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c   |  2 +-
 .../drm/amd/powerplay/hwmgr/tonga_processpptables.c | 21 ++++++++-------------
 3 files changed, 10 insertions(+), 15 deletions(-)
 
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
index 03b6128..27e0762 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
@@ -534,7 +534,7 @@ int phm_initializa_dynamic_state_adjustment_rule_settings(struct pp_hwmgr *hwmgr
 
 	/* initialize vddc_dep_on_dal_pwrl table */
 	table_size = sizeof(uint32_t) + 4 * sizeof(struct phm_clock_voltage_dependency_record);
-	table_clk_vlt = (struct phm_clock_voltage_dependency_table *)kzalloc(table_size, GFP_KERNEL);
+	table_clk_vlt = kzalloc(table_size, GFP_KERNEL);
 
 	if (NULL == table_clk_vlt) {
 		printk(KERN_ERR "[ powerplay ] Can not allocate space for vddc_dep_on_dal_pwrl! \n");
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
index 0183108..6e42b47 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
@@ -3260,7 +3260,7 @@ int tonga_initializa_dynamic_state_adjustment_rule_settings(struct pp_hwmgr *hwm
 
 	/* initialize vddc_dep_on_dal_pwrl table */
 	table_size = sizeof(uint32_t) + 4 * sizeof(struct phm_clock_voltage_dependency_record);
-	table_clk_vlt = (struct phm_clock_voltage_dependency_table *)kzalloc(table_size, GFP_KERNEL);
+	table_clk_vlt = kzalloc(table_size, GFP_KERNEL);
 
 	if (NULL == table_clk_vlt) {
 		printk(KERN_ERR "[ powerplay ] Can not allocate space for vddc_dep_on_dal_pwrl! \n");
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_processpptables.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_processpptables.c
index 4662d3d..53f02c7 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_processpptables.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_processpptables.c
@@ -167,8 +167,7 @@ static int get_vddc_lookup_table(
 	table_size = sizeof(uint32_t) +
 		sizeof(phm_ppt_v1_voltage_lookup_record) * max_levels;
 
-	table = (phm_ppt_v1_voltage_lookup_table *)
-		kzalloc(table_size, GFP_KERNEL);
+	table = kzalloc(table_size, GFP_KERNEL);
 
 	if (NULL == table)
 		return -ENOMEM;
@@ -327,7 +326,7 @@ static int get_valid_clk(
 	table_size = sizeof(uint32_t) +
 		sizeof(uint32_t) * clk_volt_pp_table->count;
 
-	table = (struct phm_clock_array *)kzalloc(table_size, GFP_KERNEL);
+	table = kzalloc(table_size, GFP_KERNEL);
 
 	if (NULL == table)
 		return -ENOMEM;
@@ -377,8 +376,7 @@ static int get_mclk_voltage_dependency_table(
 	table_size = sizeof(uint32_t) + sizeof(phm_ppt_v1_clock_voltage_dependency_record)
 		* mclk_dep_table->ucNumEntries;
 
-	mclk_table = (phm_ppt_v1_clock_voltage_dependency_table *)
-		kzalloc(table_size, GFP_KERNEL);
+	mclk_table = kzalloc(table_size, GFP_KERNEL);
 
 	if (NULL == mclk_table)
 		return -ENOMEM;
@@ -424,8 +422,7 @@ static int get_sclk_voltage_dependency_table(
 		table_size = sizeof(uint32_t) + sizeof(phm_ppt_v1_clock_voltage_dependency_record)
 			* tonga_table->ucNumEntries;
 
-		sclk_table = (phm_ppt_v1_clock_voltage_dependency_table *)
-			kzalloc(table_size, GFP_KERNEL);
+		sclk_table = kzalloc(table_size, GFP_KERNEL);
 
 		if (NULL == sclk_table)
 			return -ENOMEM;
@@ -456,8 +453,7 @@ static int get_sclk_voltage_dependency_table(
 		table_size = sizeof(uint32_t) + sizeof(phm_ppt_v1_clock_voltage_dependency_record)
 			* polaris_table->ucNumEntries;
 
-		sclk_table = (phm_ppt_v1_clock_voltage_dependency_table *)
-			kzalloc(table_size, GFP_KERNEL);
+		sclk_table = kzalloc(table_size, GFP_KERNEL);
 
 		if (NULL == sclk_table)
 			return -ENOMEM;
@@ -504,7 +500,7 @@ static int get_pcie_table(
 		table_size = sizeof(uint32_t) +
 			sizeof(phm_ppt_v1_pcie_record) * atom_pcie_table->ucNumEntries;
 
-		pcie_table = (phm_ppt_v1_pcie_table *)kzalloc(table_size, GFP_KERNEL);
+		pcie_table = kzalloc(table_size, GFP_KERNEL);
 
 		if (pcie_table == NULL)
 			return -ENOMEM;
@@ -541,7 +537,7 @@ static int get_pcie_table(
 		table_size = sizeof(uint32_t) +
 			sizeof(phm_ppt_v1_pcie_record) * atom_pcie_table->ucNumEntries;
 
-		pcie_table = (phm_ppt_v1_pcie_table *)kzalloc(table_size, GFP_KERNEL);
+		pcie_table = kzalloc(table_size, GFP_KERNEL);
 
 		if (pcie_table == NULL)
 			return -ENOMEM;
@@ -695,8 +691,7 @@ static int get_mm_clock_voltage_table(
 	table_size = sizeof(uint32_t) +
 		sizeof(phm_ppt_v1_mm_clock_voltage_dependency_record)
 		* mm_dependency_table->ucNumEntries;
-	mm_table = (phm_ppt_v1_mm_clock_voltage_dependency_table *)
-		kzalloc(table_size, GFP_KERNEL);
+	mm_table = kzalloc(table_size, GFP_KERNEL);
 
 	if (NULL == mm_table)
 		return -ENOMEM;