drm/amdgpu: fix for coding style issues

Fixed below checkpatch warnings and errors

drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:131: CHECK: Comparison to NULL could be written "apd"
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:150: CHECK: Comparison to NULL could be written "apd"
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:196: CHECK: Prefer kernel type 'u64' over 'uint64_t'
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:224: CHECK: Please don't use multiple blank lines
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:226: CHECK: Comparison to NULL could be written "!adev->acp.acp_genpd"
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:233: CHECK: Please don't use multiple blank lines
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:239: CHECK: Alignment should match open parenthesis
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:241: CHECK: Comparison to NULL could be written "!adev->acp.acp_cell"
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:247: CHECK: Comparison to NULL could be written "!adev->acp.acp_res"
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:253: CHECK: Comparison to NULL could be written "!i2s_pdata"
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:350: CHECK: Alignment should match open parenthesis
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c:550: ERROR: that open brace { should be on the previous line
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c

@@ -128,7 +128,6 @@ static int acp_poweroff(struct generic_pm_domain *genpd)
 	struct amdgpu_device *adev;
 
 	apd = container_of(genpd, struct acp_pm_domain, gpd);
-	if (apd != NULL) {
 	adev = apd->adev;
 	/* call smu to POWER GATE ACP block
 	 * smu will
@@ -137,7 +136,6 @@ static int acp_poweroff(struct generic_pm_domain *genpd)
 	 * 3. check and enter ulv state
 	 */
 	amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, true);
-	}
 	return 0;
 }
 
@@ -147,7 +145,6 @@ static int acp_poweron(struct generic_pm_domain *genpd)
 	struct amdgpu_device *adev;
 
 	apd = container_of(genpd, struct acp_pm_domain, gpd);
-	if (apd != NULL) {
 	adev = apd->adev;
 	/* call smu to UNGATE ACP block
 	 * smu will
@@ -156,7 +153,6 @@ static int acp_poweron(struct generic_pm_domain *genpd)
 	 * 3. power on acp tiles
 	 */
 	amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
-	}
 	return 0;
 }
 
@@ -193,7 +189,7 @@ static int acp_genpd_remove_device(struct device *dev, void *data)
 static int acp_hw_init(void *handle)
 {
 	int r;
-	uint64_t acp_base;
+	u64 acp_base;
 	u32 val = 0;
 	u32 count = 0;
 	struct i2s_platform_data *i2s_pdata = NULL;
@@ -220,37 +216,32 @@ static int acp_hw_init(void *handle)
 		return -EINVAL;
 
 	acp_base = adev->rmmio_base;
-
-
 	adev->acp.acp_genpd = kzalloc(sizeof(struct acp_pm_domain), GFP_KERNEL);
-	if (adev->acp.acp_genpd == NULL)
+	if (!adev->acp.acp_genpd)
 		return -ENOMEM;
 
 	adev->acp.acp_genpd->gpd.name = "ACP_AUDIO";
 	adev->acp.acp_genpd->gpd.power_off = acp_poweroff;
 	adev->acp.acp_genpd->gpd.power_on = acp_poweron;
-
-
 	adev->acp.acp_genpd->adev = adev;
 
 	pm_genpd_init(&adev->acp.acp_genpd->gpd, NULL, false);
 
-	adev->acp.acp_cell = kcalloc(ACP_DEVS, sizeof(struct mfd_cell),
-							GFP_KERNEL);
+	adev->acp.acp_cell = kcalloc(ACP_DEVS, sizeof(struct mfd_cell), GFP_KERNEL);
 
-	if (adev->acp.acp_cell == NULL) {
+	if (!adev->acp.acp_cell) {
 		r = -ENOMEM;
 		goto failure;
 	}
 
 	adev->acp.acp_res = kcalloc(5, sizeof(struct resource), GFP_KERNEL);
-	if (adev->acp.acp_res == NULL) {
+	if (!adev->acp.acp_res) {
 		r = -ENOMEM;
 		goto failure;
 	}
 
 	i2s_pdata = kcalloc(3, sizeof(struct i2s_platform_data), GFP_KERNEL);
-	if (i2s_pdata == NULL) {
+	if (!i2s_pdata) {
 		r = -ENOMEM;
 		goto failure;
 	}
@@ -346,8 +337,7 @@ static int acp_hw_init(void *handle)
 	adev->acp.acp_cell[3].platform_data = &i2s_pdata[2];
 	adev->acp.acp_cell[3].pdata_size = sizeof(struct i2s_platform_data);
 
-	r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell,
-								ACP_DEVS);
+	r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell, ACP_DEVS);
 	if (r)
 		goto failure;
 
@@ -546,8 +536,7 @@ static const struct amd_ip_funcs acp_ip_funcs = {
 	.set_powergating_state = acp_set_powergating_state,
 };
 
-const struct amdgpu_ip_block_version acp_ip_block =
-{
+const struct amdgpu_ip_block_version acp_ip_block = {
 	.type = AMD_IP_BLOCK_TYPE_ACP,
 	.major = 2,
 	.minor = 2,