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From 7c67e9f1b6ee307d0470a82e31b21936d3724e4f Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 4 Oct 2019 12:54:12 -0500
Subject: [PATCH 4549/4736] drm/amdgpu: add baco support to runtime
suspend/resume
BACO - Bus Active, Chip Off
This adds the necessary support to the runtime suspend
and resume functions to handle boards that support
baco.
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index db41bdba954e..036e253def85 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1200,7 +1200,8 @@ static int amdgpu_pmops_resume(struct device *dev)
struct drm_device *drm_dev = dev_get_drvdata(dev);
/* GPU comes up enabled by the bios on resume */
- if (amdgpu_device_supports_boco(drm_dev)) {
+ if (amdgpu_device_supports_boco(drm_dev) ||
+ amdgpu_device_supports_baco(drm_dev)) {
pm_runtime_disable(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
@@ -1267,6 +1268,8 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev)
else if (!amdgpu_has_atpx_dgpu_power_cntl())
pci_set_power_state(pdev, PCI_D3hot);
drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
+ } else if (amdgpu_device_supports_baco(drm_dev)) {
+ amdgpu_device_baco_enter(drm_dev);
}
return 0;
@@ -1292,6 +1295,8 @@ static int amdgpu_pmops_runtime_resume(struct device *dev)
if (ret)
return ret;
pci_set_master(pdev);
+ } else if (amdgpu_device_supports_baco(drm_dev)) {
+ amdgpu_device_baco_exit(drm_dev);
}
ret = amdgpu_device_resume(drm_dev, false, false);
drm_kms_helper_poll_enable(drm_dev);
--
2.17.1
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