drm/amd/pm/smu11: BACO is supported when it's in BACO state

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[ Upstream commit 6dca7efe6e ]

Return true early if ASIC is in BACO state already, no need
to talk to SMU. It can fix the issue that driver was not
calling BACO exit at all in runtime pm resume, and a timing
issue leading to a PCI AER error happened eventually.

Fixes: 8795e182b0 ("PCI/portdrv: Don't disable AER reporting in get_port_device_capability()")
Suggested-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Guchun Chen 2022-11-22 17:33:24 +08:00 • committed by Greg Kroah-Hartman

parent 95569b7285

commit dd574ff7a7

1 changed files with 4 additions and 0 deletions

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drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c

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