From: Dillon Varone <dillon.varone@xxxxxxx>
[WHY&HOW]
Even if memory lower power feature policy states that it is disabled,
VPG memory should still be poweerd on if it is currently disabled when
requested.
Reviewed-by: Chris Park <chris.park@xxxxxxx>
Acked-by: Wayne Lin <wayne.lin@xxxxxxx>
Signed-off-by: Dillon Varone <dillon.varone@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dcn31/dcn31_vpg.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_vpg.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_vpg.c
index f1deb1c3c363..cfb923d85630 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_vpg.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_vpg.c
@@ -63,7 +63,12 @@ void vpg31_poweron(struct vpg *vpg)
{
struct dcn31_vpg *vpg31 = DCN31_VPG_FROM_VPG(vpg);
- if (vpg->ctx->dc->debug.enable_mem_low_power.bits.vpg == false)
+ uint32_t vpg_gsp_mem_pwr_state;
+
+ REG_GET(VPG_MEM_PWR, VPG_GSP_MEM_PWR_STATE, &vpg_gsp_mem_pwr_state);
+
+ if (vpg->ctx->dc->debug.enable_mem_low_power.bits.vpg == false &&
+ vpg_gsp_mem_pwr_state == 0)
return;
REG_UPDATE_2(VPG_MEM_PWR, VPG_GSP_MEM_LIGHT_SLEEP_DIS, 1, VPG_GSP_LIGHT_SLEEP_FORCE, 0);
--
2.37.3
