From: Martin Leung <martin.leung@xxxxxxx>
[Why]
On baco-enabled systems running virtual dal, can get set power
state when hw is not initialized
[How]
Skip DC hw part of setPowerState when hw not available
Signed-off-by: Martin Leung <martin.leung@xxxxxxx>
Reviewed-by: Aric Cyr <Aric.Cyr@xxxxxxx>
Acked-by: Eryk Brol <eryk.brol@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 87b8315cfbb8..daf1b20028b8 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2887,6 +2887,9 @@ void dc_set_power_state(
struct kref refcount;
struct display_mode_lib *dml;
+ if (!dc->current_state)
+ return;
+
switch (power_state) {
case DC_ACPI_CM_POWER_STATE_D0:
dc_resource_state_construct(dc, dc->current_state);
--
2.25.1
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