From: Vijendar Mukunda Vijendar.Mukunda@amd.com
Power Gating is disabled in Stoney platform.
Signed-off-by: Vijendar Mukunda Vijendar.Mukunda@amd.com Signed-off-by: Alex Deucher alexander.deucher@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;