[PATCH v6 1/4] drm/amd: avoid suspend on dGPUs w/ s2idle support when runtime PM enabled

[Mario Limonciello]

dGPUs connected to Intel systems configured for suspend to idle
will not have the power rails cut at suspend and resetting the GPU
may lead to problematic behaviors.

Fixes: e25443d2765f4 ("drm/amdgpu: add a dev_pm_ops prepare callback (v2)")
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1879
Signed-off-by: Mario Limonciello <mario.limonciello at amd.com>
---
v5->v6:
 * Move patch to the start of the series so it can go in even if the rest need
   work
 * Change approach that if dGPU is in BOCO just skip suspend
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index b0a620c26ae2..922accdd4246 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -2294,8 +2294,7 @@ static int amdgpu_pmops_prepare(struct device *dev)
 	 * DPM_FLAG_SMART_SUSPEND works properly
 	 */
 	if (amdgpu_device_supports_boco(drm_dev))
-		return pm_runtime_suspended(dev) &&
-			pm_suspend_via_firmware();
+		return pm_runtime_suspended(dev);
 
 	return 0;
 }
-- 
2.25.1