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From 8cbccd525ecdae7497538139d7fb4b34d38f8129 Mon Sep 17 00:00:00 2001
From: Vijendar Mukunda <vijendar.mukunda@amd.com>
Date: Sun, 29 Jul 2018 19:08:32 +0800
Subject: [PATCH 0004/2940] drm/amd/amdgpu: Enabling Power Gating for Stoney
platform
Removed condition checks to skip the power gating feature for
stoney platform.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Vijendar Mukunda <vijendar.mukunda@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c | 53 ++++++++++++-------------
1 file changed, 25 insertions(+), 28 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
index d4d1738da3b6..bab8fab118d6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
@@ -301,20 +301,19 @@ static int acp_hw_init(void *handle)
acp_base = adev->rmmio_base;
- 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->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 = 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->cgs_dev = adev->acp.cgs_device;
- pm_genpd_init(&adev->acp.acp_genpd->gpd, NULL, false);
- }
+ adev->acp.acp_genpd->cgs_dev = adev->acp.cgs_device;
+
+ pm_genpd_init(&adev->acp.acp_genpd->gpd, NULL, false);
adev->acp.acp_cell = kcalloc(ACP_DEVS, sizeof(struct mfd_cell),
GFP_KERNEL);
@@ -431,17 +430,17 @@ static int acp_hw_init(void *handle)
if (r)
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;
- }
+
+ 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;
}
}
+
/* Assert Soft reset of ACP */
val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
@@ -499,7 +498,7 @@ static int acp_hw_fini(void *handle)
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
/* return early if no ACP */
- if (!adev->acp.acp_cell) {
+ if (!adev->acp.acp_genpd) {
amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
return 0;
}
@@ -540,19 +539,17 @@ static int acp_hw_fini(void *handle)
udelay(100);
}
- 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(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);
+ for (i = 0; i < ACP_DEVS ; i++) {
+ dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
+ ret = pm_genpd_remove_device(dev);
+ /* If removal fails, dont giveup and try rest */
+ if (ret)
+ dev_err(dev, "remove dev from genpd failed\n");
}
mfd_remove_devices(adev->acp.parent);
kfree(adev->acp.acp_res);
+ kfree(adev->acp.acp_genpd);
kfree(adev->acp.acp_cell);
return 0;
--
2.17.1
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