From: Dillon Varone <[email protected]> [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 <[email protected]> Acked-by: Wayne Lin <[email protected]> Signed-off-by: Dillon Varone <[email protected]> --- 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
