From: Vijendar Mukunda <vijendar.muku...@amd.com>
Power Gating is disabled in Stoney platform.
Signed-off-by: Vijendar Mukunda <vijendar.muku...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
v2: added missing changes required for power gating and
removed local variable.
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c | 51 ++++++++++++++++++---------------
1 file changed, 28 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
index 9c0bd6c..ebca223 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
@@ -285,19 +285,20 @@ static int acp_hw_init(void *handle)
return 0;
else if (r)
return r;
+ if (adev->asic_type != CHIP_STONEY) {
+ adev->acp.acp_genpd = kzalloc(sizeof(struct acp_pm_domain),
GFP_KERNEL);
+ if (adev->acp.acp_genpd == NULL)
+ return -ENOMEM;
- adev->acp.acp_genpd = kzalloc(sizeof(struct acp_pm_domain), GFP_KERNEL);
- if (adev->acp.acp_genpd == NULL)
- 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->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->cgs_dev = adev->acp.cgs_device;
+ adev->acp.acp_genpd->cgs_dev = adev->acp.cgs_device;
- pm_genpd_init(&adev->acp.acp_genpd->gpd, NULL, false);
+ pm_genpd_init(&adev->acp.acp_genpd->gpd, NULL, false);
+ }
adev->acp.acp_cell = kzalloc(sizeof(struct mfd_cell) * ACP_DEVS,
GFP_KERNEL);
@@ -390,12 +391,14 @@ static int acp_hw_init(void *handle)
if (r)
return r;
- for (i = 0; i < ACP_DEVS ; i++) {
- dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
- r = pm_genpd_add_device(&adev->acp.acp_genpd->gpd, dev);
- if (r) {
- dev_err(dev, "Failed to add dev to genpd\n");
- return r;
+ if (adev->asic_type != CHIP_STONEY) {
+ for (i = 0; i < ACP_DEVS ; i++) {
+ dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
+ r = pm_genpd_add_device(&adev->acp.acp_genpd->gpd, dev);
+ if (r) {
+ dev_err(dev, "Failed to add dev to genpd\n");
+ return r;
+ }
}
}
@@ -415,20 +418,22 @@ static int acp_hw_fini(void *handle)
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
/* return early if no ACP */
- if (!adev->acp.acp_genpd)
+ if (!adev->acp.acp_cell)
return 0;
- for (i = 0; i < ACP_DEVS ; i++) {
- dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
- ret = pm_genpd_remove_device(&adev->acp.acp_genpd->gpd, dev);
- /* If removal fails, dont giveup and try rest */
- if (ret)
- dev_err(dev, "remove dev from genpd failed\n");
+ if (adev->acp.acp_genpd) {
+ for (i = 0; i < ACP_DEVS ; i++) {
+ dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
+ ret = pm_genpd_remove_device(&adev->acp.acp_genpd->gpd,
dev);
+ /* If removal fails, dont giveup and try rest */
+ if (ret)
+ dev_err(dev, "remove dev from genpd failed\n");
+ }
+ kfree(adev->acp.acp_genpd);
}
mfd_remove_devices(adev->acp.parent);
kfree(adev->acp.acp_res);
- kfree(adev->acp.acp_genpd);
kfree(adev->acp.acp_cell);
return 0;
--
2.5.5
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